feat: WebUI 重构与更新

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# SRDB WebUI
基于 Preact.js 的 SRDB WebUI使用无构建工具工作流No Build Workflow
## 技术栈
- **Preact 10.19.3** - 轻量级 React 替代品3KB
- **HTM 3.1.1** - JSX 替代方案,直接在浏览器中使用
- **dom-align** - 智能元素定位(用于 Popover 和 Tooltip
- **ESM.sh** - ES Modules CDN
## 特性
**零构建工具** - 无需 Webpack、Vite 等构建工具
**原生 ES Modules** - 直接使用 `import` 语法
**HTM 语法** - 使用 `html` 标签模板字符串代替 JSX
**主题切换** - 支持深色/浅色主题,持久化保存
**智能 Popover** - 鼠标悬停单元格显示完整数据
**字段 Tooltip** - 悬停表头显示字段注释,悬停表名显示表注释
**响应式设计** - 适配不同屏幕尺寸
**数据分页** - 支持自定义每页显示行数20/50/100/200+ 跳页功能
**列选择器** - 下拉菜单选择要显示的列,支持持久化保存
**详情模态框** - 点击眼睛图标查看单条记录的完整数据
**Manifest 弹窗** - 点击按钮打开弹窗,实时显示 LSM-Tree 结构和 Compaction 统计
**索引标识** - 有索引的字段显示 🔍 图标
**悬浮加载提示** - 加载时顶部显示悬浮提示,不影响布局
## 目录结构
```
webui/
├── static/
│ ├── index.html # 主 HTML 文件
│ ├── css/
│ │ └── styles.css # 全局样式(支持主题)
│ │
│ └── js/
│ ├── main.js # 应用入口
│ ├── hooks/ # 自定义 Hooks
│ │ ├── useCellPopover.js # 单元格 Popover Hook
│ │ └── useTooltip.js # Tooltip Hook
│ │
│ └── components/ # Preact 组件
│ ├── App.js # 主应用组件
│ ├── Sidebar.js # 侧边栏(表列表)
│ ├── TableItem.js # 表列表项(可展开字段)
│ ├── FieldList.js # 字段列表
│ ├── TableView.js # 表视图(主容器)
│ ├── ColumnSelector.js # 列选择器(下拉菜单)
│ ├── DataTable.js # 数据表格
│ ├── TableRow.js # 表格行
│ ├── TableCell.js # 表格单元格
│ ├── Pagination.js # 分页器sticky 底部)
│ ├── PageJumper.js # 跳页输入框
│ ├── RowDetailModal.js # 记录详情模态框
│ ├── ManifestModal.js # Manifest 弹窗
│ ├── ManifestView.js # Manifest 视图
│ ├── LevelCard.js # 层级卡片
│ ├── FileCard.js # 文件卡片
│ ├── StatCard.js # 统计卡片
│ └── CompactionStats.js # Compaction 统计
├── webui.go # Go 后端处理器
└── README.md # 本文件
```
## 快速开始
### 1. 启动后端服务
```bash
cd /path/to/srdb/examples/webui
go run main.go serve --db ./data --addr :8080
```
### 2. 访问 WebUI
浏览器打开:`http://localhost:8080/`
## 使用技巧
1. **查看字段说明**:鼠标悬停在表头字段名上,会显示该字段的 comment
2. **查看表说明**:鼠标悬停在表名上,会显示该表的 comment
3. **选择显示列**:点击右上角的 "Columns" 按钮,勾选要显示的列,选择会自动保存
4. **查看完整数据**:鼠标悬停在表格单元格上,会显示该单元格的完整数据
5. **查看记录详情**:鼠标悬停在行上,点击出现的眼睛图标查看完整记录
6. **跳转到指定页**:在分页器输入页码,点击"跳转"按钮
7. **查看 LSM-Tree 结构**:点击右上角的 "📊 Manifest" 按钮打开弹窗
8. **展开表字段**:在侧边栏点击表名前的 ▶ 图标展开查看所有字段
9. **识别索引字段**:带有 🔍 图标的字段表示该字段已建立索引
10. **主题切换**:点击左上角的 ☀️/🌙 图标切换深色/浅色主题
## 核心组件说明
### App.js - 主应用
负责:
- 主题管理(深色/浅色切换LocalStorage 持久化)
- 表列表加载和选择
- 侧边栏 + 主内容区布局
### Sidebar.js - 侧边栏
特性:
- 可展开的表列表(点击 ▶ 展开字段)
- 表统计信息(字段数)
- 字段列表显示(字段名、类型、索引图标)
- 选中状态高亮
### TableView.js - 表视图容器
包含:
- 表名标题(悬停显示表注释)
- 行数统计(格式化显示 K/M
- Manifest 按钮(打开弹窗)
- 列选择器按钮
- DataTable 组件
- ManifestModal 组件
### ColumnSelector.js - 列选择器
特性:
- 下拉菜单式选择器
- 多选复选框
- 显示字段类型和索引图标
- LocalStorage 持久化保存
- 选中数量徽章显示
### DataTable.js - 数据表格
功能:
- 响应式表格渲染
- 表头 Tooltip显示字段注释
- 单元格 Popover悬停显示完整数据
- 时间格式化(`_time` 字段)
- 悬浮加载提示(顶部居中)
- Sticky 分页器(粘在底部)
### TableRow.js - 表格行
特性:
- 悬停高亮效果
- 操作列眼睛图标(仅悬停时显示,使用 opacity 动画)
- 点击查看详情
### Pagination.js - 分页组件
功能:
- 上一页/下一页导航
- 每页行数选择20/50/100/200
- 跳页功能PageJumper
- Sticky 定位在底部
- 显示当前页范围和总数
### RowDetailModal.js - 记录详情
特性:
- 全屏模态框
- 显示单条记录的所有字段
- 系统字段标记(`_seq`, `_time`
- JSON 格式化显示
- ESC 键和点击遮罩层关闭
### ManifestModal.js - Manifest 弹窗
特性:
- 90vw 宽度弹窗(最大 1200px
- 包装 ManifestView 组件
- ESC 键和点击外部关闭
- 阻止背景滚动
### ManifestView.js - Manifest 视图
展示:
- 统计卡片(总文件数、总大小、下一个文件号、最后序列号)
- 各层级详情L0-L6+
- 层级标识(彩色徽章)
- 文件数和总大小
- Compaction Score带进度条
- 文件列表文件号、大小、行数、Key 范围)
- Compaction 统计(合并次数、读写字节等)
- 只显示有文件的层级
## 自定义 Hooks
### useCellPopover.js
用于单元格数据预览的 Popover
- 使用 dom-align 智能定位
- 自动处理溢出和边界
- 延迟隐藏避免闪烁
- 支持 JSON 格式化显示
### useTooltip.js
用于表头和表名的 Tooltip
- 显示字段 comment 或表 comment
- 使用 dom-align 定位在元素下方
- 无延迟即时显示
- 最大宽度 300px自动换行
## Preact + HTM 语法示例
### 基本组件
```javascript
import { html } from 'htm/preact';
export function MyComponent({ name }) {
return html`
<div class="hello">
<h1>Hello, ${name}!</h1>
</div>
`;
}
```
### 使用 Hooks
```javascript
import { html } from 'htm/preact';
import { useState, useEffect } from 'preact/hooks';
export function Counter() {
const [count, setCount] = useState(0);
useEffect(() => {
console.log('Count changed:', count);
}, [count]);
return html`
<div>
<p>Count: ${count}</p>
<button onClick=${() => setCount(count + 1)}>
Increment
</button>
</div>
`;
}
```
### 条件渲染
```javascript
${loading
? html`<div class="loading">Loading...</div>`
: html`<div class="content">${data}</div>`
}
```
### 列表渲染
```javascript
${items.map(item => html`
<div key=${item.id}>${item.name}</div>
`)}
```
## 主题切换
主题通过修改 `<html>` 元素的 `data-theme` 属性实现:
```javascript
// 切换到浅色主题
document.documentElement.setAttribute('data-theme', 'light');
// 切换回深色主题
document.documentElement.removeAttribute('data-theme');
```
CSS 变量会根据主题自动切换:
```css
:root {
--bg-main: #0f0f1a; /* 深色主题 */
}
:root[data-theme="light"] {
--bg-main: #f5f5f7; /* 浅色主题 */
}
```
## API 接口
WebUI v2 使用的 API 端点:
- `GET /api/tables` - 获取表列表(含行数统计)
- `GET /api/tables/:name/schema` - 获取表 Schema
- `GET /api/tables/:name/data?limit=100&offset=0` - 获取表数据(支持分页)
- `GET /api/tables/:name/data/:seq` - 获取单条记录详情(完整数据)
- `GET /api/tables/:name/manifest` - 获取 Manifest 信息LSM-Tree 结构)
## 开发建议
### 添加新组件
1.`static/js/components/` 创建新文件
2. 使用 `html` 标签模板语法
3. 导出函数组件
```javascript
import { html } from 'htm/preact';
export function NewComponent({ prop1, prop2 }) {
return html`
<div>Your content here</div>
`;
}
```
### 内联样式 vs CSS
推荐使用内联样式(通过 `styles` 对象)以获得更好的组件隔离性和主题支持:
```javascript
const styles = {
container: {
padding: '20px',
background: 'var(--bg-elevated)',
color: 'var(--text-primary)'
}
};
return html`<div style=${styles.container}>Content</div>`;
```
### 状态管理
使用 `useState``useEffect` 管理组件状态:
```javascript
import { useState, useEffect } from 'preact/hooks';
// 本地状态
const [count, setCount] = useState(0);
// 副作用处理
useEffect(() => {
// 组件挂载时执行
console.log('Component mounted');
// 清理函数
return () => {
console.log('Component unmounted');
};
}, []); // 空依赖数组表示只在挂载/卸载时执行
```
## 参考资料
- [Preact 官方文档](https://preactjs.com/)
- [HTM 文档](https://github.com/developit/htm)
- [dom-align 文档](https://github.com/yiminghe/dom-align)
- [ESM.sh CDN](https://esm.sh/)
## License
MIT

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/* SRDB WebUI - Modern Design with Lit */ /* SRDB WebUI v2 - Preact Edition */
:root { :root {
/* 主色调 - 优雅的紫蓝色 */ /* 主色调 - 优雅的紫蓝色 */
@@ -30,12 +30,9 @@
/* 阴影 */ /* 阴影 */
--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3); --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
--shadow-md: --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3); --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
--shadow-lg: --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
--shadow-xl:
0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
/* 圆角 */ /* 圆角 */
--radius-sm: 6px; --radius-sm: 6px;
@@ -66,12 +63,9 @@
/* 阴影 - 浅色主题 */ /* 阴影 - 浅色主题 */
--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05); --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
--shadow-md: --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06); --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
--shadow-lg: --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
--shadow-xl:
0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
} }
* { * {
@@ -80,19 +74,8 @@
padding: 0; padding: 0;
} }
:root {
/* 主题过渡动画 */
transition: background-color 0.3s ease, color 0.3s ease;
}
body { body {
font-family: font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
"Inter",
-apple-system,
BlinkMacSystemFont,
"Segoe UI",
Roboto,
sans-serif;
background: var(--bg-main); background: var(--bg-main);
color: var(--text-primary); color: var(--text-primary);
line-height: 1.6; line-height: 1.6;
@@ -105,3 +88,44 @@ body {
overflow: hidden; overflow: hidden;
transition: background-color 0.3s ease, color 0.3s ease; transition: background-color 0.3s ease, color 0.3s ease;
} }
#app {
height: 100vh;
display: flex;
flex-direction: column;
}
/* 自定义滚动条 */
*::-webkit-scrollbar {
width: 8px;
height: 8px;
}
*::-webkit-scrollbar-track {
background: transparent;
}
*::-webkit-scrollbar-thumb {
background: var(--border-color);
border-radius: 4px;
}
*::-webkit-scrollbar-thumb:hover {
background: var(--border-hover);
}
/* Loading 状态 */
.loading {
display: flex;
align-items: center;
justify-content: center;
height: 100%;
color: var(--text-secondary);
}
/* Empty 状态 */
.empty {
text-align: center;
padding: 60px 20px;
color: var(--text-secondary);
}

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<!doctype html> <!DOCTYPE html>
<html lang="zh-CN"> <html lang="zh-CN">
<head> <head>
<meta charset="UTF-8" /> <meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0" /> <meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>SRDB Web UI</title> <title>SRDB WebUI v2 - Preact</title>
<link rel="preconnect" href="https://fonts.googleapis.com" /> <link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin /> <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link <link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap" rel="stylesheet">
href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap" <link rel="stylesheet" href="/static/css/styles.css">
rel="stylesheet"
/>
<link rel="stylesheet" href="/static/css/styles.css" />
<!-- Import Map for Lit and local modules --> <!-- Import Map for Preact and HTM -->
<script type="importmap"> <script type="importmap">
{ {
"imports": { "imports": {
"lit": "https://cdn.jsdelivr.net/gh/lit/dist@3/core/lit-core.min.js", "preact": "https://esm.sh/preact@10.19.3",
"lit/": "https://cdn.jsdelivr.net/gh/lit/dist@3/", "preact/": "https://esm.sh/preact@10.19.3/",
"dom-align": "https://cdn.jsdelivr.net/npm/dom-align@1.12.4/+esm", "htm/preact": "https://esm.sh/htm@3.1.1/preact?external=preact",
"~/": "/static/js/" "dom-align": "https://cdn.jsdelivr.net/npm/dom-align@1.12.4/+esm"
} }
} }
</script> </script>
</head> </head>
<body> <body>
<!-- 应用容器 --> <div id="app"></div>
<srdb-app></srdb-app>
<!-- Modal --> <!-- Load Preact App -->
<srdb-modal-dialog></srdb-modal-dialog>
<!-- 加载 Lit 组件 -->
<script type="module" src="/static/js/main.js"></script> <script type="module" src="/static/js/main.js"></script>
</body> </body>
</html> </html>

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/**
* API 请求管理模块
* 统一管理所有后端接口请求
*/
const API_BASE = '/api';
/**
* 通用请求处理函数
* @param {string} url - 请求 URL
* @param {RequestInit} options - fetch 选项
* @returns {Promise<any>}
*/
async function request(url, options = {}) {
try {
const response = await fetch(url, {
headers: {
'Content-Type': 'application/json',
...options.headers,
},
...options,
});
if (!response.ok) {
const error = new Error(`HTTP ${response.status}: ${response.statusText}`);
error.status = response.status;
error.response = response;
throw error;
}
return await response.json();
} catch (error) {
console.error('API request failed:', url, error);
throw error;
}
}
/**
* 表相关 API
*/
export const tableAPI = {
/**
* 获取所有表列表
* @returns {Promise<Array>}
*/
async list() {
return request(`${API_BASE}/tables`);
},
/**
* 获取表的 Schema
* @param {string} tableName - 表名
* @returns {Promise<Object>}
*/
async getSchema(tableName) {
return request(`${API_BASE}/tables/${tableName}/schema`);
},
/**
* 获取表数据(分页)
* @param {string} tableName - 表名
* @param {Object} params - 查询参数
* @param {number} params.page - 页码
* @param {number} params.pageSize - 每页大小
* @param {string} params.select - 选择的列(逗号分隔)
* @returns {Promise<Object>}
*/
async getData(tableName, { page = 1, pageSize = 20, select = '' } = {}) {
const params = new URLSearchParams({
page: page.toString(),
pageSize: pageSize.toString(),
});
if (select) {
params.append('select', select);
}
return request(`${API_BASE}/tables/${tableName}/data?${params}`);
},
/**
* 获取单行数据详情
* @param {string} tableName - 表名
* @param {number} seq - 序列号
* @returns {Promise<Object>}
*/
async getRow(tableName, seq) {
return request(`${API_BASE}/tables/${tableName}/data/${seq}`);
},
/**
* 获取表的 Manifest 信息
* @param {string} tableName - 表名
* @returns {Promise<Object>}
*/
async getManifest(tableName) {
return request(`${API_BASE}/tables/${tableName}/manifest`);
},
/**
* 插入数据
* @param {string} tableName - 表名
* @param {Object} data - 数据对象
* @returns {Promise<Object>}
*/
async insert(tableName, data) {
return request(`${API_BASE}/tables/${tableName}/data`, {
method: 'POST',
body: JSON.stringify(data),
});
},
/**
* 批量插入数据
* @param {string} tableName - 表名
* @param {Array<Object>} data - 数据数组
* @returns {Promise<Object>}
*/
async batchInsert(tableName, data) {
return request(`${API_BASE}/tables/${tableName}/data/batch`, {
method: 'POST',
body: JSON.stringify(data),
});
},
/**
* 删除表
* @param {string} tableName - 表名
* @returns {Promise<Object>}
*/
async delete(tableName) {
return request(`${API_BASE}/tables/${tableName}`, {
method: 'DELETE',
});
},
/**
* 获取表统计信息
* @param {string} tableName - 表名
* @returns {Promise<Object>}
*/
async getStats(tableName) {
return request(`${API_BASE}/tables/${tableName}/stats`);
},
};
/**
* 数据库相关 API
*/
export const databaseAPI = {
/**
* 获取数据库信息
* @returns {Promise<Object>}
*/
async getInfo() {
return request(`${API_BASE}/database/info`);
},
/**
* 获取数据库统计信息
* @returns {Promise<Object>}
*/
async getStats() {
return request(`${API_BASE}/database/stats`);
},
};
/**
* 导出默认 API 对象
*/
export default {
table: tableAPI,
database: databaseAPI,
};

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import { css } from 'lit';
// 共享的基础样式
export const sharedStyles = css`
* {
box-sizing: border-box;
margin: 0;
padding: 0;
}
/* 自定义滚动条样式 */
*::-webkit-scrollbar {
width: 8px;
height: 8px;
}
*::-webkit-scrollbar-track {
background: transparent;
}
*::-webkit-scrollbar-thumb {
background: rgba(255, 255, 255, 0.1);
border-radius: 4px;
}
*::-webkit-scrollbar-thumb:hover {
background: rgba(255, 255, 255, 0.15);
}
/* 通用状态样式 */
.empty {
text-align: center;
padding: 60px 20px;
color: var(--text-secondary);
}
.loading {
text-align: center;
padding: 60px 20px;
color: var(--text-secondary);
}
`;
// CSS 变量(可以在组件中使用,优先使用外部定义的变量)
export const cssVariables = css`
:host {
/* 主色调 - 优雅的紫蓝色 */
--primary: var(--srdb-primary, #6366f1);
--primary-dark: var(--srdb-primary-dark, #4f46e5);
--primary-light: var(--srdb-primary-light, #818cf8);
--primary-bg: var(--srdb-primary-bg, rgba(99, 102, 241, 0.1));
/* 背景色 */
--bg-main: var(--srdb-bg-main, #0f0f1a);
--bg-surface: var(--srdb-bg-surface, #1a1a2e);
--bg-elevated: var(--srdb-bg-elevated, #222236);
--bg-hover: var(--srdb-bg-hover, #2a2a3e);
/* 文字颜色 */
--text-primary: var(--srdb-text-primary, #ffffff);
--text-secondary: var(--srdb-text-secondary, #a0a0b0);
--text-tertiary: var(--srdb-text-tertiary, #6b6b7b);
/* 边框和分隔线 */
--border-color: var(--srdb-border-color, rgba(255, 255, 255, 0.1));
--border-hover: var(--srdb-border-hover, rgba(255, 255, 255, 0.2));
/* 状态颜色 */
--success: var(--srdb-success, #10b981);
--warning: var(--srdb-warning, #f59e0b);
--danger: var(--srdb-danger, #ef4444);
--info: var(--srdb-info, #3b82f6);
/* 阴影 */
--shadow-sm: var(--srdb-shadow-sm, 0 1px 2px 0 rgba(0, 0, 0, 0.3));
--shadow-md: var(--srdb-shadow-md, 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3));
--shadow-lg: var(--srdb-shadow-lg, 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3));
--shadow-xl: var(--srdb-shadow-xl, 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.3));
/* 圆角 */
--radius-sm: var(--srdb-radius-sm, 6px);
--radius-md: var(--srdb-radius-md, 8px);
--radius-lg: var(--srdb-radius-lg, 12px);
--radius-xl: var(--srdb-radius-xl, 16px);
/* 过渡 */
--transition: var(--srdb-transition, all 0.2s cubic-bezier(0.4, 0, 0.2, 1));
}
`;

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import { html } from 'htm/preact';
import { useState, useEffect } from 'preact/hooks';
import { Sidebar } from './Sidebar.js';
import { TableView } from './TableView.js';
export function App() {
const [theme, setTheme] = useState('dark');
const [tables, setTables] = useState([]);
const [selectedTable, setSelectedTable] = useState(null);
const [loading, setLoading] = useState(true);
// 初始化主题
useEffect(() => {
const savedTheme = localStorage.getItem('srdb_theme') || 'dark';
setTheme(savedTheme);
if (savedTheme === 'light') {
document.documentElement.setAttribute('data-theme', 'light');
}
}, []);
// 加载表列表
useEffect(() => {
fetchTables();
}, []);
const fetchTables = async () => {
try {
setLoading(true);
const response = await fetch('/api/tables');
if (response.ok) {
const data = await response.json();
setTables(data.tables || []);
if (data.tables && data.tables.length > 0) {
setSelectedTable(data.tables[0].name);
}
}
} catch (error) {
console.error('Failed to fetch tables:', error);
} finally {
setLoading(false);
}
};
const toggleTheme = () => {
const newTheme = theme === 'dark' ? 'light' : 'dark';
setTheme(newTheme);
localStorage.setItem('srdb_theme', newTheme);
if (newTheme === 'light') {
document.documentElement.setAttribute('data-theme', 'light');
} else {
document.documentElement.removeAttribute('data-theme');
}
};
const styles = {
container: {
display: 'flex',
height: '100vh',
overflow: 'hidden'
},
sidebar: {
width: '280px',
background: 'var(--bg-surface)',
borderRight: '1px solid var(--border-color)',
overflowY: 'auto',
overflowX: 'hidden',
padding: '16px 12px',
display: 'flex',
flexDirection: 'column',
gap: '8px'
},
sidebarHeader: {
display: 'flex',
alignItems: 'center',
justifyContent: 'space-between',
marginBottom: '4px'
},
sidebarTitle: {
fontSize: '18px',
fontWeight: 700,
letterSpacing: '-0.02em',
background: 'linear-gradient(135deg, #667eea, #764ba2)',
WebkitBackgroundClip: 'text',
WebkitTextFillColor: 'transparent',
margin: 0
},
themeToggle: {
width: '32px',
height: '32px',
background: 'var(--bg-elevated)',
border: '1px solid var(--border-color)',
borderRadius: 'var(--radius-md)',
cursor: 'pointer',
display: 'flex',
alignItems: 'center',
justifyContent: 'center',
fontSize: '16px',
transition: 'var(--transition)'
},
main: {
flex: 1,
overflowY: 'auto',
overflowX: 'hidden',
background: 'var(--bg-main)',
padding: '24px'
}
};
return html`
<div style=${styles.container}>
<!-- 左侧侧边栏 -->
<div style=${styles.sidebar}>
<div style=${styles.sidebarHeader}>
<h1 style=${styles.sidebarTitle}>SRDB Tables</h1>
<button
style=${styles.themeToggle}
onClick=${toggleTheme}
onMouseEnter=${(e) => e.target.style.background = 'var(--bg-hover)'}
onMouseLeave=${(e) => e.target.style.background = 'var(--bg-elevated)'}
title=${theme === 'dark' ? '切换到浅色主题' : '切换到深色主题'}
>
${theme === 'dark' ? '☀️' : '🌙'}
</button>
</div>
<${Sidebar}
tables=${tables}
selectedTable=${selectedTable}
onSelectTable=${setSelectedTable}
loading=${loading}
/>
</div>
<!-- 右侧主内容区 -->
<div style=${styles.main}>
${!selectedTable && html`
<div class="empty">
<p>Select a table from the sidebar</p>
</div>
`}
${selectedTable && html`
<${TableView} tableName=${selectedTable} key=${selectedTable} />
`}
</div>
</div>
`;
}

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import { html } from 'htm/preact';
import { useState, useRef, useEffect } from 'preact/hooks';
const styles = {
container: {
position: 'relative',
display: 'inline-block'
},
button: {
display: 'flex',
alignItems: 'center',
gap: '8px',
padding: '8px 16px',
background: 'var(--bg-elevated)',
border: '1px solid var(--border-color)',
borderRadius: 'var(--radius-md)',
color: 'var(--text-primary)',
fontSize: '14px',
fontWeight: 500,
cursor: 'pointer',
transition: 'var(--transition)'
},
dropdown: (isOpen) => ({
position: 'absolute',
top: 'calc(100% + 4px)',
right: 0,
minWidth: '240px',
maxHeight: '400px',
overflowY: 'auto',
background: 'var(--bg-elevated)',
border: '1px solid var(--border-color)',
borderRadius: 'var(--radius-md)',
boxShadow: 'var(--shadow-lg)',
zIndex: 100,
display: isOpen ? 'block' : 'none'
}),
menuItem: (isSelected) => ({
display: 'flex',
alignItems: 'center',
gap: '12px',
padding: '10px 16px',
cursor: 'pointer',
transition: 'var(--transition)',
background: isSelected ? 'var(--primary-bg)' : 'transparent',
color: 'var(--text-primary)',
fontSize: '14px'
}),
checkbox: (isSelected) => ({
width: '18px',
height: '18px',
display: 'flex',
alignItems: 'center',
justifyContent: 'center',
flexShrink: 0,
color: isSelected ? 'var(--primary)' : 'transparent'
}),
fieldInfo: {
flex: 1,
minWidth: 0,
display: 'flex',
alignItems: 'center',
justifyContent: 'space-between',
gap: '8px'
},
fieldName: {
display: 'flex',
alignItems: 'center',
gap: '6px',
flex: 1,
minWidth: 0,
overflow: 'hidden',
textOverflow: 'ellipsis',
whiteSpace: 'nowrap'
},
fieldType: {
fontSize: '10px',
color: 'var(--primary)',
background: 'var(--primary-bg)',
padding: '2px 5px',
borderRadius: 'var(--radius-sm)',
fontFamily: '"Courier New", monospace',
flexShrink: 0
}
};
export function ColumnSelector({ fields, selectedColumns, onToggle }) {
const [isOpen, setIsOpen] = useState(false);
const dropdownRef = useRef(null);
const buttonRef = useRef(null);
useEffect(() => {
const handleClickOutside = (event) => {
if (
dropdownRef.current &&
buttonRef.current &&
!dropdownRef.current.contains(event.target) &&
!buttonRef.current.contains(event.target)
) {
setIsOpen(false);
}
};
if (isOpen) {
document.addEventListener('mousedown', handleClickOutside);
}
return () => {
document.removeEventListener('mousedown', handleClickOutside);
};
}, [isOpen]);
const selectedCount = selectedColumns.length;
const totalCount = fields?.length || 0;
return html`
<div style=${styles.container}>
<button
ref=${buttonRef}
style=${styles.button}
onClick=${() => setIsOpen(!isOpen)}
onMouseEnter=${(e) => {
e.target.style.background = 'var(--bg-hover)';
e.target.style.borderColor = 'var(--border-hover)';
}}
onMouseLeave=${(e) => {
e.target.style.background = 'var(--bg-elevated)';
e.target.style.borderColor = 'var(--border-color)';
}}
>
<span>Columns</span>
${selectedCount > 0 && html`
<span style=${{
background: 'var(--primary)',
color: '#fff',
padding: '2px 6px',
borderRadius: 'var(--radius-sm)',
fontSize: '11px',
fontWeight: 600
}}>
${selectedCount}
</span>
`}
<span style=${{
fontSize: '12px',
color: 'var(--text-secondary)',
transition: 'transform 0.2s ease',
transform: isOpen ? 'rotate(180deg)' : 'rotate(0deg)'
}}>▼</span>
</button>
<div ref=${dropdownRef} style=${styles.dropdown(isOpen)}>
${fields?.map(field => {
const isSelected = selectedColumns.includes(field.name);
return html`
<div
key=${field.name}
style=${styles.menuItem(isSelected)}
onClick=${() => onToggle(field.name)}
onMouseEnter=${(e) => {
if (!isSelected) {
e.currentTarget.style.background = 'var(--bg-hover)';
}
}}
onMouseLeave=${(e) => {
if (!isSelected) {
e.currentTarget.style.background = 'transparent';
}
}}
>
<div style=${styles.checkbox(isSelected)}>
${isSelected ? '✓' : ''}
</div>
<div style=${styles.fieldInfo}>
<div style=${styles.fieldName}>
<span>${field.name}</span>
${field.indexed && html`<span style=${{ fontSize: '12px' }}>🔍</span>`}
</div>
<div style=${styles.fieldType}>${field.type}</div>
</div>
</div>
`;
})}
</div>
</div>
`;
}

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import { html } from 'htm/preact';
const styles = {
compactionStats: {
background: 'var(--bg-elevated)',
border: '1px solid var(--border-color)',
borderRadius: 'var(--radius-lg)',
padding: '16px'
},
compactionTitle: {
fontSize: '15px',
fontWeight: 600,
color: 'var(--text-primary)',
marginBottom: '12px'
},
compactionGrid: {
display: 'grid',
gridTemplateColumns: 'repeat(auto-fit, minmax(150px, 1fr))',
gap: '8px'
},
compactionItem: {
display: 'flex',
alignItems: 'center',
padding: '6px 0',
fontSize: '13px',
gap: "24px"
}
};
function formatNumber(num) {
return num.toLocaleString('zh-CN');
}
export function CompactionStats({ stats }) {
if (!stats) return null;
return html`
<div style=${styles.compactionStats}>
<div style=${styles.compactionTitle}>Compaction 统计</div>
<div style=${styles.compactionGrid}>
${Object.entries(stats).map(([key, value]) => html`
<div key=${key} style=${styles.compactionItem}>
<span style=${{ color: 'var(--text-secondary)' }}>${key}</span>
<span style=${{ color: 'var(--text-primary)', fontWeight: 500 }}>
${typeof value === 'number' ? formatNumber(value) : value}
</span>
</div>
`)}
</div>
</div>
`;
}

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import { html } from 'htm/preact';
import { useState, useEffect } from 'preact/hooks';
import { RowDetailModal } from './RowDetailModal.js';
import { Pagination } from './Pagination.js';
import { TableRow } from './TableRow.js';
import { useCellPopover } from '../hooks/useCellPopover.js';
import { useTooltip } from '../hooks/useTooltip.js';
const styles = {
container: {
display: 'flex',
flexDirection: 'column',
gap: '12px',
position: 'relative'
},
loadingBar: {
position: 'absolute',
top: 0,
left: 0,
right: 0,
height: '3px',
background: 'var(--primary)',
zIndex: 100,
animation: 'loading-slide 1.5s ease-in-out infinite'
},
loadingOverlay: {
position: 'fixed',
top: '16px',
left: '50%',
transform: 'translateX(-50%)',
padding: '10px 20px',
background: 'var(--bg-elevated)',
border: '1px solid var(--border-color)',
borderRadius: 'var(--radius-md)',
boxShadow: 'var(--shadow-lg)',
zIndex: 999,
display: 'flex',
alignItems: 'center',
gap: '10px',
fontSize: '14px',
color: 'var(--text-primary)',
fontWeight: 500
},
tableWrapper: {
overflowX: 'auto',
background: 'var(--bg-surface)',
border: '1px solid var(--border-color)',
borderRadius: 'var(--radius-md)'
},
table: {
width: '100%',
borderCollapse: 'collapse',
fontSize: '13px'
},
th: {
background: 'var(--bg-elevated)',
color: 'var(--text-secondary)',
fontWeight: 600,
textAlign: 'left',
padding: '12px',
borderBottom: '1px solid var(--border-color)',
position: 'sticky',
top: 0,
zIndex: 1
}
};
export function DataTable({ schema, tableName, totalRows, selectedColumns = [] }) {
const [page, setPage] = useState(0);
const [pageSize, setPageSize] = useState(20);
const [data, setData] = useState([]);
const [loading, setLoading] = useState(false);
const [selectedSeq, setSelectedSeq] = useState(null);
const { showPopover, hidePopover } = useCellPopover();
const { showTooltip, hideTooltip } = useTooltip();
useEffect(() => {
fetchData();
}, [tableName, page, pageSize]);
const fetchData = async () => {
try {
setLoading(true);
const offset = page * pageSize;
const response = await fetch(`/api/tables/${tableName}/data?limit=${pageSize}&offset=${offset}`);
if (response.ok) {
const result = await response.json();
setData(result.data || []);
}
} catch (error) {
console.error('Failed to fetch data:', error);
} finally {
setLoading(false);
}
};
const getColumns = () => {
let columns = [];
if (selectedColumns && selectedColumns.length > 0) {
// 使用选中的列
columns = [...selectedColumns];
} else if (schema && schema.fields) {
// 没有选择时,显示所有字段
columns = schema.fields.map(f => f.name);
} else {
return ['_seq', '_time'];
}
// 过滤掉 _seq 和 _time它们会被固定放到特定位置
const filtered = columns.filter(c => c !== '_seq' && c !== '_time');
// _seq 在开头其他字段在中间_time 在倒数第二Actions 列之前)
return ['_seq', ...filtered, '_time'];
};
const handleViewDetail = (seq) => {
setSelectedSeq(seq);
};
const handlePageSizeChange = (newPageSize) => {
setPageSize(newPageSize);
setPage(0);
};
const getFieldComment = (fieldName) => {
if (!schema || !schema.fields) return '';
const field = schema.fields.find(f => f.name === fieldName);
return field?.comment || '';
};
const columns = getColumns();
if (!data || data.length === 0) {
return html`<div class="empty"><p>暂无数据</p></div>`;
}
return html`
<div style=${styles.container}>
${loading && html`
<div style=${styles.loadingOverlay}>
<span style=${{ fontSize: '16px' }}>⏳</span>
<span>加载中...</span>
</div>
`}
<div style=${styles.tableWrapper}>
<table style=${styles.table}>
<thead>
<tr>
${columns.map(col => {
const comment = getFieldComment(col);
return html`
<th
key=${col}
style=${styles.th}
onMouseEnter=${(e) => comment && showTooltip(e.currentTarget, comment)}
onMouseLeave=${hideTooltip}
>
${col}
</th>
`;
})}
<th style=${{ ...styles.th, textAlign: 'center' }}>操作</th>
</tr>
</thead>
<tbody>
${data.map((row, idx) => html`
<${TableRow}
key=${row._seq || idx}
row=${row}
columns=${columns}
onViewDetail=${handleViewDetail}
onShowPopover=${showPopover}
onHidePopover=${hidePopover}
/>
`)}
</tbody>
</table>
</div>
<!-- 分页控件 -->
<${Pagination}
page=${page}
pageSize=${pageSize}
totalRows=${totalRows}
onPageChange=${setPage}
onPageSizeChange=${handlePageSizeChange}
onJumpToPage=${setPage}
/>
<!-- 详情模态框 -->
${selectedSeq !== null && html`
<${RowDetailModal}
tableName=${tableName}
seq=${selectedSeq}
onClose=${() => setSelectedSeq(null)}
/>
`}
</div>
`;
}

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import { html } from 'htm/preact';
const styles = {
schemaFields: {
borderTop: '1px solid var(--border-color)',
position: 'relative',
transition: 'var(--transition)'
},
verticalLine: {
content: '""',
position: 'absolute',
left: '16px',
top: 0,
bottom: '14px',
width: '1px',
background: 'var(--border-color)',
zIndex: 2
},
fieldItem: {
zIndex: 1,
display: 'flex',
alignItems: 'center',
gap: '8px',
padding: '4px 12px 4px 16px',
fontSize: '12px',
transition: 'var(--transition)',
position: 'relative'
},
horizontalLine: {
width: '8px',
height: '1px',
background: 'var(--border-color)'
},
fieldIndexIcon: {
display: 'inline-flex',
alignItems: 'center',
justifyContent: 'center',
fontSize: '12px',
flexShrink: 0
},
fieldName: {
fontWeight: 500,
color: 'var(--text-secondary)',
flex: 1,
display: 'flex',
alignItems: 'center',
gap: '4px'
},
fieldType: {
fontFamily: '"Courier New", monospace',
fontSize: '11px',
padding: '2px 6px',
background: 'var(--primary-bg)',
color: 'var(--primary)',
borderRadius: 'var(--radius-sm)',
fontWeight: 600
}
};
export function FieldList({ fields }) {
if (!fields || fields.length === 0) {
return null;
}
return html`
<div style=${styles.schemaFields}>
<!-- 垂直连接线 -->
<div style=${styles.verticalLine}></div>
${fields.map((field) => {
return html`
<div
key=${field.name}
style=${styles.fieldItem}
onMouseEnter=${(e) => {
e.currentTarget.style.background = 'var(--bg-hover)';
}}
onMouseLeave=${(e) => {
e.currentTarget.style.background = 'transparent';
}}
>
<!-- 水平连接线 -->
<div style=${styles.horizontalLine}></div>
<!-- 字段名称和索引图标 -->
<span style=${styles.fieldName}>
${field.name}
${field.indexed && html`
<span
style=${styles.fieldIndexIcon}
title="Indexed field"
>
🔍
</span>
`}
</span>
<!-- 字段类型 -->
<span style=${styles.fieldType}>${field.type}</span>
</div>
`;
})}
</div>
`;
}

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import { html } from 'htm/preact';
const styles = {
fileCard: {
background: 'var(--bg-elevated)',
border: '1px solid var(--border-color)',
borderRadius: 'var(--radius-sm)',
padding: '10px',
transition: 'var(--transition)'
},
fileName: {
display: 'flex',
alignItems: 'center',
justifyContent: 'space-between',
marginBottom: '6px'
},
fileNameText: {
fontFamily: '"Courier New", monospace',
fontSize: '13px',
color: 'var(--text-primary)',
fontWeight: 500
},
fileLevelBadge: {
fontSize: '11px',
padding: '2px 8px',
background: 'var(--primary-bg)',
color: 'var(--primary)',
borderRadius: 'var(--radius-sm)',
fontWeight: 600,
fontFamily: '"Courier New", monospace'
},
fileDetail: {
display: 'flex',
flexDirection: 'column',
gap: '3px',
fontSize: '12px',
color: 'var(--text-secondary)'
},
fileDetailRow: {
display: 'flex',
justifyContent: 'space-between'
}
};
function formatBytes(bytes) {
if (bytes === 0) return '0 B';
const k = 1024;
const sizes = ['B', 'KB', 'MB', 'GB'];
const i = Math.floor(Math.log(bytes) / Math.log(k));
return (bytes / Math.pow(k, i)).toFixed(2) + ' ' + sizes[i];
}
function formatNumber(num) {
return num.toLocaleString('zh-CN');
}
export function FileCard({ file }) {
return html`
<div
style=${styles.fileCard}
onMouseEnter=${(e) => {
e.currentTarget.style.borderColor = 'var(--primary)';
e.currentTarget.style.boxShadow = '0 2px 8px rgba(0, 0, 0, 0.1)';
}}
onMouseLeave=${(e) => {
e.currentTarget.style.borderColor = 'var(--border-color)';
e.currentTarget.style.boxShadow = 'none';
}}
>
<div style=${styles.fileName}>
<span style=${styles.fileNameText}>${String(file.file_number).padStart(6, '0')}.sst</span>
<span style=${styles.fileLevelBadge}>L${file.level}</span>
</div>
<div style=${styles.fileDetail}>
<div style=${styles.fileDetailRow}>
<span>Size:</span>
<span>${formatBytes(file.file_size)}</span>
</div>
<div style=${styles.fileDetailRow}>
<span>Rows:</span>
<span>${formatNumber(file.row_count)}</span>
</div>
<div style=${styles.fileDetailRow}>
<span>Seq Range:</span>
<span>${formatNumber(file.min_key)} - ${formatNumber(file.max_key)}</span>
</div>
</div>
</div>
`;
}

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import { html } from 'htm/preact';
import { FileCard } from './FileCard.js';
const styles = {
levelSection: {
background: 'var(--bg-elevated)',
border: '1px solid var(--border-color)',
borderRadius: 'var(--radius-lg)',
marginBottom: '8px',
overflow: 'hidden'
},
levelHeader: {
display: 'flex',
alignItems: 'center',
justifyContent: 'space-between',
cursor: 'pointer',
padding: '14px 16px',
transition: 'var(--transition)',
},
levelHeaderLeft: {
display: 'flex',
alignItems: 'center',
gap: '12px',
flex: 1
},
expandIcon: (isExpanded) => ({
fontSize: '12px',
color: 'var(--text-secondary)',
transition: 'transform 0.2s ease',
userSelect: 'none',
transform: isExpanded ? 'rotate(90deg)' : 'rotate(0deg)'
}),
levelTitle: {
fontSize: '16px',
fontWeight: 600,
color: 'var(--text-primary)',
display: 'flex',
alignItems: 'center',
gap: '12px'
},
levelBadge: (level) => {
const colors = ['#667eea', '#764ba2', '#f093fb', '#4facfe'];
const bgColor = colors[level] || '#667eea';
return {
background: bgColor,
color: '#fff',
padding: '4px 10px',
borderRadius: 'var(--radius-sm)',
fontSize: '12px',
fontWeight: 600,
fontFamily: '"Courier New", monospace'
};
},
levelStats: {
display: 'flex',
gap: '20px',
fontSize: '13px',
color: 'var(--text-secondary)'
},
scoreBadge: (score) => ({
padding: '4px 8px',
borderRadius: 'var(--radius-sm)',
fontSize: '12px',
fontWeight: 600,
fontFamily: '"Courier New", monospace',
background: score > 1 ? '#fed7d7' : score > 0.8 ? '#feebc8' : '#c6f6d5',
color: score > 1 ? '#c53030' : score > 0.8 ? '#c05621' : '#22543d'
}),
filesContainer: (isExpanded) => ({
display: isExpanded ? 'block' : 'none',
padding: '12px',
background: 'var(--bg-surface)',
borderTop: '1px solid var(--border-color)',
borderRadius: '0 0 var(--radius-lg) var(--radius-lg)'
}),
filesGrid: {
display: 'grid',
gridTemplateColumns: 'repeat(auto-fill, minmax(280px, 1fr))',
gap: '8px'
}
};
function formatBytes(bytes) {
if (bytes === 0) return '0 B';
const k = 1024;
const sizes = ['B', 'KB', 'MB', 'GB'];
const i = Math.floor(Math.log(bytes) / Math.log(k));
return (bytes / Math.pow(k, i)).toFixed(2) + ' ' + sizes[i];
}
export function LevelCard({ level, isExpanded, onToggle }) {
return html`
<div style=${styles.levelSection}>
<div
style=${styles.levelHeader}
onClick=${onToggle}
onMouseEnter=${(e) => {
e.currentTarget.style.background = 'var(--bg-hover)';
}}
onMouseLeave=${(e) => {
e.currentTarget.style.background = 'transparent';
}}
>
<div style=${styles.levelHeaderLeft}>
<span style=${styles.expandIcon(isExpanded)}>▶</span>
<div style=${styles.levelTitle}>
<span style=${styles.levelBadge(level.level)}>L${level.level}</span>
<span>Level ${level.level}</span>
</div>
</div>
<div style=${styles.levelStats}>
<span>文件: ${level.file_count}</span>
<span>大小: ${formatBytes(level.total_size)}</span>
${level.score > 0 && html`
<span style=${styles.scoreBadge(level.score)}>
Score: ${(level.score * 100).toFixed(0)}%
</span>
`}
</div>
</div>
${level.files && level.files.length > 0 && html`
<div style=${styles.filesContainer(isExpanded)}>
<div style=${styles.filesGrid}>
${level.files.map(file => html`
<${FileCard} key=${file.file_number} file=${file} />
`)}
</div>
</div>
`}
${(!level.files || level.files.length === 0) && html`
<div class="empty" style=${{ padding: '20px', textAlign: 'center' }}>
<p style=${{ color: 'var(--text-tertiary)', fontSize: '13px' }}>此层级暂无文件</p>
</div>
`}
</div>
`;
}

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import { html } from 'htm/preact';
import { useEffect } from 'preact/hooks';
import { ManifestView } from './ManifestView.js';
const styles = {
overlay: {
position: 'fixed',
top: 0,
left: 0,
right: 0,
bottom: 0,
background: 'rgba(0, 0, 0, 0.6)',
display: 'flex',
alignItems: 'center',
justifyContent: 'center',
zIndex: 1000,
padding: '20px'
},
modal: {
background: 'var(--bg-elevated)',
borderRadius: 'var(--radius-lg)',
boxShadow: 'var(--shadow-xl)',
width: '90vw',
maxWidth: '1200px',
maxHeight: '85vh',
display: 'flex',
flexDirection: 'column',
overflow: 'hidden'
},
header: {
display: 'flex',
alignItems: 'center',
justifyContent: 'space-between',
padding: '20px 24px',
borderBottom: '1px solid var(--border-color)'
},
title: {
fontSize: '20px',
fontWeight: 600,
color: 'var(--text-primary)',
margin: 0
},
closeButton: {
width: '32px',
height: '32px',
display: 'flex',
alignItems: 'center',
justifyContent: 'center',
background: 'transparent',
border: 'none',
borderRadius: 'var(--radius-sm)',
cursor: 'pointer',
fontSize: '20px',
color: 'var(--text-secondary)',
transition: 'var(--transition)'
},
content: {
flex: 1,
overflowY: 'auto',
padding: '20px 24px'
}
};
export function ManifestModal({ tableName, onClose }) {
// ESC 键关闭
useEffect(() => {
const handleEscape = (e) => {
if (e.key === 'Escape') {
onClose();
}
};
document.addEventListener('keydown', handleEscape);
return () => document.removeEventListener('keydown', handleEscape);
}, [onClose]);
// 阻止背景滚动
useEffect(() => {
document.body.style.overflow = 'hidden';
return () => {
document.body.style.overflow = '';
};
}, []);
const handleOverlayClick = (e) => {
if (e.target === e.currentTarget) {
onClose();
}
};
return html`
<div style=${styles.overlay} onClick=${handleOverlayClick}>
<div style=${styles.modal}>
<div style=${styles.header}>
<h2 style=${styles.title}>Manifest - ${tableName}</h2>
<button
style=${styles.closeButton}
onClick=${onClose}
onMouseEnter=${(e) => {
e.target.style.background = 'var(--bg-hover)';
e.target.style.color = 'var(--text-primary)';
}}
onMouseLeave=${(e) => {
e.target.style.background = 'transparent';
e.target.style.color = 'var(--text-secondary)';
}}
title="关闭"
>
</button>
</div>
<div style=${styles.content}>
<${ManifestView} tableName=${tableName} />
</div>
</div>
</div>
`;
}

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import { html } from 'htm/preact';
import { useState, useEffect } from 'preact/hooks';
import { LevelCard } from './LevelCard.js';
import { StatCard } from './StatCard.js';
import { CompactionStats } from './CompactionStats.js';
const styles = {
container: {
display: 'flex',
flexDirection: 'column',
gap: '12px'
},
statsGrid: {
display: 'grid',
gridTemplateColumns: 'repeat(auto-fit, minmax(200px, 1fr))',
gap: '8px'
}
};
function formatBytes(bytes) {
if (bytes === 0) return '0 B';
const k = 1024;
const sizes = ['B', 'KB', 'MB', 'GB'];
const i = Math.floor(Math.log(bytes) / Math.log(k));
return (bytes / Math.pow(k, i)).toFixed(2) + ' ' + sizes[i];
}
function formatNumber(num) {
return num.toLocaleString('zh-CN');
}
export function ManifestView({ tableName }) {
const [manifest, setManifest] = useState(null);
const [loading, setLoading] = useState(true);
const [expandedLevels, setExpandedLevels] = useState(new Set());
useEffect(() => {
fetchManifest();
const interval = setInterval(fetchManifest, 5000); // 每5秒刷新
return () => clearInterval(interval);
}, [tableName]);
const fetchManifest = async () => {
try {
const response = await fetch(`/api/tables/${tableName}/manifest`);
if (response.ok) {
const data = await response.json();
setManifest(data);
}
} catch (error) {
console.error('Failed to fetch manifest:', error);
} finally {
setLoading(false);
}
};
const toggleLevel = (levelNum) => {
const newExpanded = new Set(expandedLevels);
if (newExpanded.has(levelNum)) {
newExpanded.delete(levelNum);
} else {
newExpanded.add(levelNum);
}
setExpandedLevels(newExpanded);
};
if (loading) {
return html`<div class="loading"><p>加载中...</p></div>`;
}
if (!manifest) {
return html`<div class="empty"><p>无法加载 Manifest 数据</p></div>`;
}
const totalFiles = manifest.levels?.reduce((sum, level) => sum + level.file_count, 0) || 0;
const totalSize = manifest.levels?.reduce((sum, level) => sum + level.total_size, 0) || 0;
return html`
<div style=${styles.container}>
<!-- 统计信息 -->
<div style=${styles.statsGrid}>
<${StatCard} label="总文件数" value=${formatNumber(totalFiles)} />
<${StatCard} label="总大小" value=${formatBytes(totalSize)} />
<${StatCard} label="下一个文件号" value=${formatNumber(manifest.next_file_number || 0)} />
<${StatCard} label="最后序列号" value=${formatNumber(manifest.last_sequence || 0)} />
</div>
<!-- Compaction 统计 -->
<${CompactionStats} stats=${manifest.compaction_stats} />
<!-- 各层级详情 -->
${manifest.levels?.filter(level => level.file_count > 0).map(level => html`
<${LevelCard}
key=${level.level}
level=${level}
isExpanded=${expandedLevels.has(level.level)}
onToggle=${() => toggleLevel(level.level)}
/>
`)}
</div>
`;
}

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import { html } from 'htm/preact';
import { Fragment } from 'preact';
import { useState } from 'preact/hooks';
const styles = {
jumpInput: {
width: '80px',
padding: '6px 10px',
background: 'var(--bg-elevated)',
color: 'var(--text-primary)',
border: '1px solid var(--border-color)',
borderRadius: 'var(--radius-sm)',
fontSize: '13px'
},
jumpButton: {
padding: '6px 12px',
background: 'var(--bg-elevated)',
color: 'var(--text-primary)',
border: '1px solid var(--border-color)',
borderRadius: 'var(--radius-sm)',
cursor: 'pointer',
fontSize: '13px',
transition: 'var(--transition)',
fontWeight: 500
}
};
export function PageJumper({ totalPages, onJump }) {
const [inputValue, setInputValue] = useState('');
const handleJump = () => {
const num = parseInt(inputValue);
if (num >= 1 && num <= totalPages) {
onJump(num - 1);
setInputValue('');
}
};
const handleKeyDown = (e) => {
if (e.key === 'Enter') {
handleJump();
}
};
return html`
<${Fragment}>
<input
type="number"
min="1"
max=${totalPages}
placeholder="跳转"
value=${inputValue}
onInput=${(e) => setInputValue(e.target.value)}
onKeyDown=${handleKeyDown}
style=${styles.jumpInput}
/>
<button
style=${styles.jumpButton}
onClick=${handleJump}
onMouseEnter=${(e) => {
e.target.style.background = 'var(--bg-hover)';
}}
onMouseLeave=${(e) => {
e.target.style.background = 'var(--bg-elevated)';
}}
>
跳转
</button>
<//>
`;
}

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import { html } from 'htm/preact';
import { PageJumper } from './PageJumper.js';
const styles = {
pagination: {
display: 'flex',
alignItems: 'center',
justifyContent: 'space-between',
padding: '12px',
background: 'var(--bg-surface)',
borderRadius: 'var(--radius-md)',
border: '1px solid var(--border-color)',
position: 'sticky',
bottom: 0,
zIndex: 10,
boxShadow: 'var(--shadow-md)'
},
paginationInfo: {
fontSize: '13px',
color: 'var(--text-secondary)'
},
paginationButtons: {
display: 'flex',
gap: '8px',
alignItems: 'center'
},
pageButton: (disabled) => ({
padding: '6px 12px',
background: disabled ? 'var(--bg-surface)' : 'var(--bg-elevated)',
color: disabled ? 'var(--text-tertiary)' : 'var(--text-primary)',
border: '1px solid var(--border-color)',
borderRadius: 'var(--radius-sm)',
cursor: disabled ? 'not-allowed' : 'pointer',
fontSize: '13px',
transition: 'var(--transition)',
fontWeight: 500
}),
pageSizeSelect: {
padding: '6px 10px',
background: 'var(--bg-elevated)',
color: 'var(--text-primary)',
border: '1px solid var(--border-color)',
borderRadius: 'var(--radius-sm)',
fontSize: '13px',
cursor: 'pointer'
}
};
export function Pagination({
page,
pageSize,
totalRows,
onPageChange,
onPageSizeChange,
onJumpToPage
}) {
const totalPages = Math.ceil(totalRows / pageSize);
const currentPage = page + 1;
const startRow = page * pageSize + 1;
const endRow = Math.min((page + 1) * pageSize, totalRows);
const handlePrevPage = () => {
if (page > 0) {
onPageChange(page - 1);
}
};
const handleNextPage = () => {
if (page < totalPages - 1) {
onPageChange(page + 1);
}
};
const handlePageSizeChange = (e) => {
onPageSizeChange(Number(e.target.value));
};
return html`
<div style=${styles.pagination}>
<div style=${styles.paginationInfo}>
显示 ${startRow}-${endRow} / 共 ${totalRows}
</div>
<div style=${styles.paginationButtons}>
<select
value=${pageSize}
onChange=${handlePageSizeChange}
style=${styles.pageSizeSelect}
>
<option value="10">10 / 页</option>
<option value="20">20 / 页</option>
<option value="50">50 / 页</option>
<option value="100">100 / 页</option>
</select>
<button
style=${styles.pageButton(page === 0)}
onClick=${handlePrevPage}
disabled=${page === 0}
onMouseEnter=${(e) => !e.target.disabled && (e.target.style.background = 'var(--bg-hover)')}
onMouseLeave=${(e) => !e.target.disabled && (e.target.style.background = 'var(--bg-elevated)')}
>
上一页
</button>
<span style=${{ fontSize: '13px', color: 'var(--text-secondary)' }}>
${currentPage} / ${totalPages}
</span>
<${PageJumper}
totalPages=${totalPages}
onJump=${onJumpToPage}
/>
<button
style=${styles.pageButton(page >= totalPages - 1)}
onClick=${handleNextPage}
disabled=${page >= totalPages - 1}
onMouseEnter=${(e) => !e.target.disabled && (e.target.style.background = 'var(--bg-hover)')}
onMouseLeave=${(e) => !e.target.disabled && (e.target.style.background = 'var(--bg-elevated)')}
>
下一页
</button>
</div>
</div>
`;
}

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import { html } from 'htm/preact';
import { useState, useEffect, useRef } from 'preact/hooks';
const styles = {
overlay: {
position: 'fixed',
top: 0,
left: 0,
right: 0,
bottom: 0,
background: 'rgba(0, 0, 0, 0.5)',
backdropFilter: 'blur(4px)',
display: 'flex',
alignItems: 'center',
justifyContent: 'center',
zIndex: 10000,
padding: '20px'
},
modal: {
background: 'var(--bg-elevated)',
borderRadius: 'var(--radius-lg)',
boxShadow: 'var(--shadow-xl)',
maxWidth: '800px',
width: '100%',
maxHeight: '90vh',
display: 'flex',
flexDirection: 'column',
border: '1px solid var(--border-color)'
},
header: {
padding: '20px',
borderBottom: '1px solid var(--border-color)',
display: 'flex',
alignItems: 'center',
justifyContent: 'space-between'
},
title: {
fontSize: '18px',
fontWeight: 600,
color: 'var(--text-primary)',
margin: 0
},
closeButton: {
background: 'none',
border: 'none',
fontSize: '24px',
color: 'var(--text-secondary)',
cursor: 'pointer',
padding: '4px 8px',
borderRadius: 'var(--radius-sm)',
transition: 'var(--transition)',
lineHeight: 1
},
content: {
padding: '20px',
overflowY: 'auto',
flex: 1
},
fieldGroup: {
marginBottom: '16px',
padding: '12px',
background: 'var(--bg-surface)',
borderRadius: 'var(--radius-md)',
border: '1px solid var(--border-color)'
},
fieldLabel: {
fontSize: '12px',
fontWeight: 600,
color: 'var(--text-secondary)',
textTransform: 'uppercase',
marginBottom: '4px',
display: 'flex',
alignItems: 'center',
gap: '6px'
},
fieldValue: {
fontSize: '14px',
color: 'var(--text-primary)',
wordBreak: 'break-word',
fontFamily: '"Courier New", monospace',
whiteSpace: 'pre-wrap',
lineHeight: 1.5
},
metaTag: {
display: 'inline-block',
padding: '2px 6px',
fontSize: '10px',
fontWeight: 600,
borderRadius: 'var(--radius-sm)',
background: 'var(--primary-bg)',
color: 'var(--primary)',
marginLeft: '6px'
}
};
export function RowDetailModal({ tableName, seq, onClose }) {
const overlayRef = useRef(null);
const [rowData, setRowData] = useState(null);
const [loading, setLoading] = useState(true);
useEffect(() => {
fetchRowData();
}, [tableName, seq]);
// ESC 键关闭
useEffect(() => {
const handleKeyDown = (e) => {
if (e.key === 'Escape') {
onClose();
}
};
document.addEventListener('keydown', handleKeyDown);
return () => document.removeEventListener('keydown', handleKeyDown);
}, [onClose]);
const fetchRowData = async () => {
try {
setLoading(true);
const response = await fetch(`/api/tables/${tableName}/data/${seq}`);
if (response.ok) {
const data = await response.json();
setRowData(data);
}
} catch (error) {
console.error('Failed to fetch row data:', error);
} finally {
setLoading(false);
}
};
const handleOverlayClick = (e) => {
if (e.target === overlayRef.current) {
onClose();
}
};
const formatTime = (nanoTime) => {
if (!nanoTime) return '';
const date = new Date(nanoTime / 1000000);
return date.toLocaleString('zh-CN', {
year: 'numeric',
month: '2-digit',
day: '2-digit',
hour: '2-digit',
minute: '2-digit',
second: '2-digit',
hour12: false
});
};
const formatValue = (value, key) => {
if (value === null) return 'null';
if (value === undefined) return 'undefined';
if (key === '_time') {
return formatTime(value);
}
if (typeof value === 'object') {
try {
return JSON.stringify(value, null, 2);
} catch (e) {
return '[Object]';
}
}
return String(value);
};
const renderField = (key, value) => {
const isMeta = key === '_seq' || key === '_time';
return html`
<div key=${key} style=${styles.fieldGroup}>
<div style=${styles.fieldLabel}>
${key}
${isMeta && html`<span style=${styles.metaTag}>系统字段</span>`}
</div>
<div style=${styles.fieldValue}>
${formatValue(value, key)}
</div>
</div>
`;
};
return html`
<div
ref=${overlayRef}
style=${styles.overlay}
onClick=${handleOverlayClick}
>
<div style=${styles.modal}>
<div style=${styles.header}>
<h3 style=${styles.title}>记录详情 - ${tableName}</h3>
<button
style=${styles.closeButton}
onClick=${onClose}
onMouseEnter=${(e) => e.target.style.background = 'var(--bg-hover)'}
onMouseLeave=${(e) => e.target.style.background = 'none'}
>
×
</button>
</div>
<div style=${styles.content}>
${loading && html`
<div class="loading" style=${{ textAlign: 'center', padding: '40px' }}>
<p>加载中...</p>
</div>
`}
${!loading && rowData && html`
<div>
${Object.entries(rowData).map(([key, value]) => renderField(key, value))}
</div>
`}
${!loading && !rowData && html`
<div class="empty" style=${{ textAlign: 'center', padding: '40px' }}>
<p>未找到数据</p>
</div>
`}
</div>
</div>
</div>
`;
}

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import { html } from 'htm/preact';
import { TableItem } from './TableItem.js';
export function Sidebar({ tables, selectedTable, onSelectTable, loading }) {
if (loading) {
return html`
<div class="loading">
<p>加载中...</p>
</div>
`;
}
if (tables.length === 0) {
return html`
<div class="empty">
<p>暂无数据表</p>
</div>
`;
}
return html`
${tables.map(table => html`
<${TableItem}
key=${table.name}
table=${table}
isSelected=${selectedTable === table.name}
onSelect=${() => onSelectTable(table.name)}
/>
`)}
`;
}

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import { html } from 'htm/preact';
const styles = {
statCard: {
background: 'var(--bg-elevated)',
border: '1px solid var(--border-color)',
borderRadius: 'var(--radius-md)',
padding: '12px',
transition: 'var(--transition)'
},
statLabel: {
fontSize: '12px',
color: 'var(--text-secondary)',
marginBottom: '6px',
textTransform: 'uppercase',
fontWeight: 600
},
statValue: {
fontSize: '22px',
fontWeight: 600,
color: 'var(--primary)',
fontFamily: '"Courier New", monospace'
}
};
export function StatCard({ label, value }) {
return html`
<div style=${styles.statCard}>
<div style=${styles.statLabel}>${label}</div>
<div style=${styles.statValue}>${value}</div>
</div>
`;
}

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import { html } from 'htm/preact';
const styles = {
td: {
padding: '10px 12px',
borderBottom: '1px solid var(--border-color)',
color: 'var(--text-primary)',
maxWidth: '300px',
overflow: 'hidden',
textOverflow: 'ellipsis',
whiteSpace: 'nowrap',
cursor: 'pointer'
}
};
function formatValue(value, col) {
if (col === '_time') {
return formatTime(value);
}
if (value === null) return 'null';
if (value === undefined) return 'undefined';
if (typeof value === 'object') {
try {
return JSON.stringify(value, null, 2);
} catch (e) {
return '[Object]';
}
}
return String(value);
}
function formatTime(nanoTime) {
if (!nanoTime) return '';
const date = new Date(nanoTime / 1000000);
const year = date.getFullYear();
const month = String(date.getMonth() + 1).padStart(2, '0');
const day = String(date.getDate()).padStart(2, '0');
const hours = String(date.getHours()).padStart(2, '0');
const minutes = String(date.getMinutes()).padStart(2, '0');
const seconds = String(date.getSeconds()).padStart(2, '0');
return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`;
}
export function TableCell({ value, column, isTruncated, onShowPopover, onHidePopover }) {
const formattedValue = formatValue(value, column);
const handleMouseEnter = (e) => {
if (onShowPopover) {
onShowPopover(e, formattedValue);
}
};
const handleMouseLeave = () => {
if (onHidePopover) {
onHidePopover();
}
};
return html`
<td
style=${styles.td}
onMouseEnter=${handleMouseEnter}
onMouseLeave=${handleMouseLeave}
>
${formattedValue}
${isTruncated && html`<span style=${{ marginLeft: '4px', fontSize: '10px' }}>✂️</span>`}
</td>
`;
}

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import { html } from 'htm/preact';
import { useState } from 'preact/hooks';
import { FieldList } from './FieldList.js';
const styles = {
tableItem: (isSelected, isExpanded) => ({
background: 'var(--bg-elevated)',
border: isSelected ? '1px solid var(--primary)' : '1px solid var(--border-color)',
borderRadius: 'var(--radius-md)',
overflow: 'hidden',
transition: 'var(--transition)',
boxShadow: isSelected ? '0 0 0 1px var(--primary)' : 'none'
}),
tableHeader: (isSelected) => ({
display: 'flex',
alignItems: 'center',
justifyContent: 'space-between',
paddingLeft: '4px',
paddingRight: '12px',
cursor: 'pointer',
transition: 'var(--transition)',
background: isSelected ? 'var(--primary-bg)' : 'transparent'
}),
tableHeaderLeft: {
display: 'flex',
alignItems: 'center',
gap: '8px',
flex: 1,
minWidth: 0
},
expandIcon: (isExpanded) => ({
display: 'flex',
alignItems: 'center',
justifyContent: 'center',
width: '32px',
height: '32px',
fontSize: '12px',
transition: 'var(--transition)',
flexShrink: 0,
borderRadius: 'var(--radius-sm)',
cursor: 'pointer',
color: isExpanded ? 'var(--primary)' : 'var(--text-secondary)',
transform: isExpanded ? 'rotate(90deg)' : 'rotate(0deg)',
marginLeft: '-4px'
}),
tableName: {
fontWeight: 500,
color: 'var(--text-primary)',
whiteSpace: 'nowrap',
overflow: 'hidden',
textOverflow: 'ellipsis'
},
tableCount: {
fontSize: '12px',
color: 'var(--text-tertiary)',
whiteSpace: 'nowrap',
flexShrink: 0
}
};
export function TableItem({ table, isSelected, onSelect }) {
const [isExpanded, setIsExpanded] = useState(false);
const toggleExpand = (e) => {
e.stopPropagation();
setIsExpanded(!isExpanded);
};
return html`
<div
style=${styles.tableItem(isSelected, isExpanded)}
onMouseEnter=${(e) => {
if (!isSelected) {
e.currentTarget.style.borderColor = 'var(--border-hover)';
}
}}
onMouseLeave=${(e) => {
if (!isSelected) {
e.currentTarget.style.borderColor = 'var(--border-color)';
}
}}
>
<!-- 表头 -->
<div
style=${styles.tableHeader(isSelected)}
onClick=${onSelect}
onMouseEnter=${(e) => {
if (!isSelected) {
e.currentTarget.style.background = 'var(--bg-hover)';
}
}}
onMouseLeave=${(e) => {
if (!isSelected) {
e.currentTarget.style.background = 'transparent';
}
}}
>
<div style=${styles.tableHeaderLeft}>
<span
style=${styles.expandIcon(isExpanded)}
onClick=${toggleExpand}
onMouseEnter=${(e) => {
e.currentTarget.style.background = 'var(--bg-hover)';
if (!isExpanded) {
e.currentTarget.style.color = 'var(--text-primary)';
}
}}
onMouseLeave=${(e) => {
e.currentTarget.style.background = 'transparent';
if (!isExpanded) {
e.currentTarget.style.color = 'var(--text-secondary)';
}
}}
>
</span>
<span style=${styles.tableName}>${table.name}</span>
</div>
<span style=${styles.tableCount}>
${table.fields?.length || 0} fields
</span>
</div>
<!-- 字段列表 -->
${isExpanded && html`
<${FieldList} fields=${table.fields} />
`}
</div>
`;
}

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import { html } from 'htm/preact';
import { useState } from 'preact/hooks';
import { TableCell } from './TableCell.js';
const styles = {
td: {
padding: '10px 12px',
borderBottom: '1px solid var(--border-color)',
color: 'var(--text-primary)',
textAlign: 'center'
},
iconButton: (isRowHovered, isButtonHovered) => ({
width: '28px',
height: '28px',
display: 'flex',
alignItems: 'center',
justifyContent: 'center',
background: isButtonHovered ? 'var(--primary)' : 'var(--bg-elevated)',
color: isButtonHovered ? '#fff' : 'var(--primary)',
border: '1px solid var(--border-color)',
borderRadius: 'var(--radius-sm)',
cursor: 'pointer',
fontSize: '14px',
transition: 'all 0.2s ease',
opacity: isRowHovered ? 1 : 0,
pointerEvents: isRowHovered ? 'auto' : 'none'
})
};
export function TableRow({ row, columns, onViewDetail, onShowPopover, onHidePopover }) {
const [isRowHovered, setIsRowHovered] = useState(false);
const [isButtonHovered, setIsButtonHovered] = useState(false);
return html`
<tr
onMouseEnter=${(e) => {
e.currentTarget.style.background = 'var(--bg-hover)';
setIsRowHovered(true);
}}
onMouseLeave=${(e) => {
e.currentTarget.style.background = 'transparent';
setIsRowHovered(false);
}}
>
${columns.map(col => html`
<${TableCell}
key=${col}
value=${row[col]}
column=${col}
isTruncated=${row[col + '_truncated']}
onShowPopover=${onShowPopover}
onHidePopover=${onHidePopover}
/>
`)}
<td style=${styles.td}>
<button
style=${styles.iconButton(isRowHovered, isButtonHovered)}
onClick=${() => onViewDetail(row._seq)}
onMouseEnter=${() => setIsButtonHovered(true)}
onMouseLeave=${() => setIsButtonHovered(false)}
title="查看详情"
>
👁
</button>
</td>
</tr>
`;
}

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import { html } from 'htm/preact';
import { useState, useEffect } from 'preact/hooks';
import { DataTable } from './DataTable.js';
import { ColumnSelector } from './ColumnSelector.js';
import { ManifestModal } from './ManifestModal.js';
import { useTooltip } from '../hooks/useTooltip.js';
const styles = {
container: {
display: 'flex',
flexDirection: 'column',
gap: '20px'
},
section: {
display: 'flex',
flexDirection: 'column',
gap: '16px'
},
sectionTitle: {
fontSize: '16px',
fontWeight: 600,
color: 'var(--text-primary)'
},
manifestButton: {
display: 'flex',
alignItems: 'center',
gap: '6px',
padding: '8px 16px',
background: 'var(--bg-elevated)',
border: '1px solid var(--border-color)',
borderRadius: 'var(--radius-md)',
color: 'var(--text-primary)',
fontSize: '14px',
fontWeight: 500,
cursor: 'pointer',
transition: 'var(--transition)'
}
};
export function TableView({ tableName }) {
const [schema, setSchema] = useState(null);
const [totalRows, setTotalRows] = useState(0);
const [loading, setLoading] = useState(true);
const [selectedColumns, setSelectedColumns] = useState([]);
const [showManifest, setShowManifest] = useState(false);
const { showTooltip, hideTooltip } = useTooltip();
useEffect(() => {
fetchTableInfo();
}, [tableName]);
useEffect(() => {
// 加载保存的列选择
if (tableName && schema) {
const saved = loadSelectedColumns();
if (saved && saved.length > 0) {
const validColumns = saved.filter(col =>
schema.fields.some(field => field.name === col)
);
if (validColumns.length > 0) {
setSelectedColumns(validColumns);
}
}
}
}, [tableName, schema]);
const fetchTableInfo = async () => {
try {
setLoading(true);
// 获取 Schema
const schemaResponse = await fetch(`/api/tables/${tableName}/schema`);
if (schemaResponse.ok) {
const schemaData = await schemaResponse.json();
setSchema(schemaData);
}
// 获取数据行数(通过一次小查询)
const dataResponse = await fetch(`/api/tables/${tableName}/data?limit=1`);
if (dataResponse.ok) {
const data = await dataResponse.json();
setTotalRows(data.totalRows || 0);
}
} catch (error) {
console.error('Failed to fetch table info:', error);
} finally {
setLoading(false);
}
};
const toggleColumn = (columnName) => {
const index = selectedColumns.indexOf(columnName);
let newSelection;
if (index > -1) {
newSelection = selectedColumns.filter(c => c !== columnName);
} else {
newSelection = [...selectedColumns, columnName];
}
setSelectedColumns(newSelection);
saveSelectedColumns(newSelection);
};
const saveSelectedColumns = (columns) => {
if (!tableName) return;
const key = `srdb_columns_${tableName}`;
localStorage.setItem(key, JSON.stringify(columns));
};
const loadSelectedColumns = () => {
if (!tableName) return null;
const key = `srdb_columns_${tableName}`;
const saved = localStorage.getItem(key);
return saved ? JSON.parse(saved) : null;
};
if (loading) {
return html`<div class="loading"><p>加载中...</p></div>`;
}
return html`
<div style=${styles.container}>
<div style=${styles.section}>
<div style=${{ ...styles.sectionTitle, display: 'flex', alignItems: 'center', justifyContent: 'space-between' }}>
<div>
<span
style=${{ cursor: schema?.comment ? 'help' : 'default' }}
onMouseEnter=${(e) => schema?.comment && showTooltip(e.currentTarget, schema.comment)}
onMouseLeave=${hideTooltip}
>
${tableName}
</span>
<span style=${{ fontSize: '12px', fontWeight: 400, color: 'var(--text-secondary)', marginLeft: '8px' }}>
(共 ${formatCount(totalRows)} 行)
</span>
</div>
<div style=${{ display: 'flex', gap: '8px' }}>
<button
style=${styles.manifestButton}
onClick=${() => setShowManifest(true)}
onMouseEnter=${(e) => {
e.target.style.background = 'var(--bg-hover)';
e.target.style.borderColor = 'var(--border-hover)';
}}
onMouseLeave=${(e) => {
e.target.style.background = 'var(--bg-elevated)';
e.target.style.borderColor = 'var(--border-color)';
}}
>
📊 Manifest
</button>
${schema && html`
<${ColumnSelector}
fields=${schema.fields}
selectedColumns=${selectedColumns}
onToggle=${toggleColumn}
/>
`}
</div>
</div>
<${DataTable}
schema=${schema}
tableName=${tableName}
totalRows=${totalRows}
selectedColumns=${selectedColumns}
/>
</div>
${showManifest && html`
<${ManifestModal}
tableName=${tableName}
onClose=${() => setShowManifest(false)}
/>
`}
</div>
`;
}
function formatCount(count) {
if (count >= 1000000) return (count / 1000000).toFixed(1) + 'M';
if (count >= 1000) return (count / 1000).toFixed(1) + 'K';
return count.toString();
}

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@@ -1,145 +0,0 @@
import { LitElement, html, css } from 'lit';
import { sharedStyles, cssVariables } from '~/common/shared-styles.js';
export class AppContainer extends LitElement {
static properties = {
mobileMenuOpen: { type: Boolean }
};
constructor() {
super();
this.mobileMenuOpen = false;
}
toggleMobileMenu() {
this.mobileMenuOpen = !this.mobileMenuOpen;
}
static styles = [
sharedStyles,
cssVariables,
css`
:host {
display: block;
height: 100vh;
}
.container {
display: flex;
height: 100%;
overflow: hidden;
}
.sidebar {
width: 280px;
background: var(--bg-surface);
border-right: 1px solid var(--border-color);
overflow-y: auto;
overflow-x: hidden;
padding: 16px 12px;
display: flex;
flex-direction: column;
gap: 8px;
}
.sidebar::-webkit-scrollbar {
width: 6px;
}
.sidebar-header {
display: flex;
align-items: center;
justify-content: space-between;
margin-bottom: 4px;
}
.sidebar h1 {
font-size: 18px;
font-weight: 700;
letter-spacing: -0.02em;
background: linear-gradient(135deg, var(--primary-light), var(--primary));
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
}
.main {
flex: 1;
overflow-y: auto;
overflow-x: hidden;
background: var(--bg-main);
display: flex;
flex-direction: column;
}
/* 移动端遮罩 */
.mobile-overlay {
display: none;
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: rgba(0, 0, 0, 0.5);
z-index: 999;
}
@media (max-width: 768px) {
.mobile-overlay.show {
display: block;
}
.container {
flex-direction: column;
}
.sidebar {
position: fixed;
top: 0;
left: 0;
width: 280px;
height: 100vh;
border-right: 1px solid var(--border-color);
border-bottom: none;
transform: translateX(-100%);
transition: transform 0.3s ease;
z-index: 1000;
}
.sidebar.open {
transform: translateX(0);
}
.main {
padding-top: 0;
}
}
`
];
render() {
return html`
<!-- 移动端遮罩 -->
<div class="mobile-overlay ${this.mobileMenuOpen ? 'show' : ''}" @click=${this.toggleMobileMenu}></div>
<div class="container">
<!-- 左侧表列表 -->
<div class="sidebar ${this.mobileMenuOpen ? 'open' : ''}">
<div class="sidebar-header">
<h1>SRDB Tables</h1>
<srdb-theme-toggle></srdb-theme-toggle>
</div>
<srdb-table-list @table-selected=${this.toggleMobileMenu}></srdb-table-list>
</div>
<!-- 右侧主内容区 -->
<div class="main">
<srdb-page-header @toggle-mobile-menu=${this.toggleMobileMenu}></srdb-page-header>
<srdb-table-view></srdb-table-view>
</div>
</div>
`;
}
}
customElements.define('srdb-app', AppContainer);

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import { LitElement, html, css } from 'lit';
import { sharedStyles, cssVariables } from '~/common/shared-styles.js';
export class Badge extends LitElement {
static properties = {
variant: { type: String }, // 'primary', 'success', 'warning', 'danger', 'info'
icon: { type: String },
size: { type: String } // 'sm', 'md'
};
static styles = [
sharedStyles,
cssVariables,
css`
:host {
display: inline-flex;
}
.badge {
position: relative;
display: inline-flex;
align-items: center;
gap: 4px;
padding: 2px 8px;
font-size: 11px;
font-weight: 600;
border-radius: var(--radius-sm);
white-space: nowrap;
}
.badge.size-md {
padding: 4px 10px;
font-size: 12px;
}
/* Primary variant */
.badge.variant-primary {
--badge-border-color: rgba(99, 102, 241, 0.2);
background: rgba(99, 102, 241, 0.15);
color: var(--primary);
}
/* Success variant */
.badge.variant-success {
--badge-border-color: rgba(16, 185, 129, 0.2);
background: rgba(16, 185, 129, 0.15);
color: var(--success);
}
/* Warning variant */
.badge.variant-warning {
--badge-border-color: rgba(245, 158, 11, 0.2);
background: rgba(245, 158, 11, 0.15);
color: var(--warning);
}
/* Danger variant */
.badge.variant-danger {
--badge-border-color: rgba(239, 68, 68, 0.2);
background: rgba(239, 68, 68, 0.15);
color: var(--danger);
}
/* Info variant */
.badge.variant-info {
--badge-border-color: rgba(59, 130, 246, 0.2);
background: rgba(59, 130, 246, 0.15);
color: var(--info);
}
/* Secondary variant */
.badge.variant-secondary {
--badge-border-color: rgba(160, 160, 176, 0.2);
background: rgba(160, 160, 176, 0.15);
color: var(--text-secondary);
}
.icon {
font-size: 12px;
line-height: 1;
}
.badge.size-md .icon {
font-size: 14px;
}
`
];
constructor() {
super();
this.variant = 'primary';
this.icon = '';
this.size = 'sm';
}
render() {
return html`
<span class="badge variant-${this.variant} size-${this.size}">
${this.icon ? html`<span class="icon">${this.icon}</span>` : ''}
<slot></slot>
</span>
`;
}
}
customElements.define('srdb-badge', Badge);

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@@ -1,549 +0,0 @@
import { LitElement, html, css } from 'lit';
import { sharedStyles, cssVariables } from '~/common/shared-styles.js';
import domAlign from 'dom-align';
export class DataView extends LitElement {
static properties = {
tableName: { type: String },
schema: { type: Object },
tableData: { type: Object },
selectedColumns: { type: Array },
loading: { type: Boolean }
};
static styles = [
sharedStyles,
cssVariables,
css`
:host {
display: block;
}
h3 {
font-size: 16px;
font-weight: 600;
margin: 20px 0 12px 0;
color: var(--text-primary);
}
.schema-section {
margin-bottom: 24px;
}
.schema-grid {
display: grid;
grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
gap: 12px;
}
.schema-field-card {
padding: 12px;
background: var(--bg-elevated);
border: 1px solid var(--border-color);
border-radius: var(--radius-md);
cursor: pointer;
transition: var(--transition);
}
.schema-field-card:hover {
background: var(--bg-hover);
}
.schema-field-card.selected {
border-color: var(--primary);
background: var(--primary-bg);
}
.field-item {
display: flex;
flex-direction: column;
gap: 4px;
}
.field-item-row {
display: flex;
align-items: center;
gap: 8px;
}
.field-index-icon {
font-size: 14px;
flex-shrink: 0;
}
.field-name {
font-weight: 500;
color: var(--text-primary);
font-size: 13px;
flex: 1;
}
.field-type {
font-family: 'Courier New', monospace;
}
.field-comment {
color: var(--text-tertiary);
font-size: 11px;
margin-top: 4px;
font-style: italic;
min-height: 16px;
}
.field-comment:empty::before {
content: "No comment";
opacity: 0.5;
}
.table-wrapper {
overflow-x: auto;
background: var(--bg-elevated);
border-radius: var(--radius-md);
border: 1px solid var(--border-color);
}
.data-table {
width: 100%;
border-collapse: collapse;
font-size: 13px;
}
.data-table th {
background: var(--bg-surface);
color: var(--text-secondary);
font-weight: 600;
text-align: left;
padding: 12px;
border-bottom: 1px solid var(--border-color);
position: sticky;
top: 0;
z-index: 1;
}
.data-table td {
padding: 10px 12px;
border-bottom: 1px solid var(--border-color);
color: var(--text-primary);
max-width: 300px;
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
cursor: pointer;
}
.data-table tr:hover {
background: var(--bg-hover);
}
.truncated-icon {
margin-left: 4px;
font-size: 10px;
}
.row-detail-btn {
padding: 4px 12px;
background: var(--primary);
color: white;
border: none;
border-radius: var(--radius-sm);
cursor: pointer;
font-size: 12px;
transition: var(--transition);
}
.row-detail-btn:hover {
background: var(--primary-dark);
}
`
];
constructor() {
super();
this.tableName = '';
this.schema = null;
this.tableData = null;
this.selectedColumns = [];
this.loading = false;
this.hidePopoverTimeout = null;
this.popoverElement = null;
this.themeObserver = null;
}
connectedCallback() {
super.connectedCallback();
// 创建 popover 元素并添加到 body
this.createPopoverElement();
}
disconnectedCallback() {
super.disconnectedCallback();
// 移除 popover 元素
this.removePopoverElement();
}
createPopoverElement() {
if (this.popoverElement) return;
this.popoverElement = document.createElement('div');
this.popoverElement.className = 'srdb-cell-popover';
// 从 CSS 变量中获取主题颜色
this.updatePopoverTheme();
// 添加滚动条样式(使用 CSS 变量)
if (!document.getElementById('srdb-popover-scrollbar-style')) {
const style = document.createElement('style');
style.id = 'srdb-popover-scrollbar-style';
style.textContent = `
.srdb-cell-popover::-webkit-scrollbar {
width: 8px;
height: 8px;
}
.srdb-cell-popover::-webkit-scrollbar-track {
background: var(--bg-surface);
border-radius: 4px;
}
.srdb-cell-popover::-webkit-scrollbar-thumb {
background: var(--border-color);
border-radius: 4px;
}
.srdb-cell-popover::-webkit-scrollbar-thumb:hover {
background: var(--border-hover);
}
`;
document.head.appendChild(style);
}
this.popoverElement.addEventListener('mouseenter', () => this.keepPopover());
this.popoverElement.addEventListener('mouseleave', () => this.hidePopover());
document.body.appendChild(this.popoverElement);
// 监听主题变化
this.themeObserver = new MutationObserver(() => {
this.updatePopoverTheme();
});
this.themeObserver.observe(document.documentElement, {
attributes: true,
attributeFilter: ['data-theme']
});
}
updatePopoverTheme() {
if (!this.popoverElement) return;
const rootStyles = getComputedStyle(document.documentElement);
const bgElevated = rootStyles.getPropertyValue('--bg-elevated').trim();
const textPrimary = rootStyles.getPropertyValue('--text-primary').trim();
const borderColor = rootStyles.getPropertyValue('--border-color').trim();
const shadowMd = rootStyles.getPropertyValue('--shadow-md').trim();
const radiusMd = rootStyles.getPropertyValue('--radius-md').trim();
this.popoverElement.style.cssText = `
position: fixed;
z-index: 9999;
background: ${bgElevated};
border: 1px solid ${borderColor};
border-radius: ${radiusMd};
box-shadow: ${shadowMd};
padding: 12px;
max-width: 500px;
max-height: 400px;
overflow: auto;
font-size: 13px;
color: ${textPrimary};
white-space: pre-wrap;
word-break: break-word;
font-family: 'Courier New', monospace;
opacity: 0;
transition: opacity 0.15s ease-in-out, background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
display: none;
pointer-events: auto;
`;
}
removePopoverElement() {
if (this.popoverElement) {
this.popoverElement.remove();
this.popoverElement = null;
}
if (this.themeObserver) {
this.themeObserver.disconnect();
this.themeObserver = null;
}
}
updated(changedProperties) {
// 当 tableName 或 schema 改变时,尝试加载保存的列选择
if ((changedProperties.has('tableName') || changedProperties.has('schema')) && this.tableName && this.schema) {
const saved = this.loadSelectedColumns();
if (saved && saved.length > 0) {
// 验证保存的列是否仍然存在于当前 schema 中
const validColumns = saved.filter(col =>
this.schema.fields.some(field => field.name === col)
);
if (validColumns.length > 0) {
this.selectedColumns = validColumns;
}
}
}
}
toggleColumn(columnName) {
const index = this.selectedColumns.indexOf(columnName);
if (index > -1) {
this.selectedColumns = this.selectedColumns.filter(c => c !== columnName);
} else {
this.selectedColumns = [...this.selectedColumns, columnName];
}
// 持久化到 localStorage
this.saveSelectedColumns();
this.dispatchEvent(new CustomEvent('columns-changed', {
detail: { columns: this.selectedColumns },
bubbles: true,
composed: true
}));
}
saveSelectedColumns() {
if (!this.tableName) return;
const key = `srdb_columns_${this.tableName}`;
localStorage.setItem(key, JSON.stringify(this.selectedColumns));
}
loadSelectedColumns() {
if (!this.tableName) return null;
const key = `srdb_columns_${this.tableName}`;
const saved = localStorage.getItem(key);
return saved ? JSON.parse(saved) : null;
}
showRowDetail(seq) {
this.dispatchEvent(new CustomEvent('show-row-detail', {
detail: { tableName: this.tableName, seq },
bubbles: true,
composed: true
}));
}
formatCount(count) {
if (count >= 1000000) return (count / 1000000).toFixed(1) + 'M';
if (count >= 1000) return (count / 1000).toFixed(1) + 'K';
return count.toString();
}
formatTime(nanoTime) {
if (!nanoTime) return '';
// 将纳秒转换为毫秒
const date = new Date(nanoTime / 1000000);
// 格式化为 YYYY-MM-DD HH:mm:ss
const year = date.getFullYear();
const month = String(date.getMonth() + 1).padStart(2, '0');
const day = String(date.getDate()).padStart(2, '0');
const hours = String(date.getHours()).padStart(2, '0');
const minutes = String(date.getMinutes()).padStart(2, '0');
const seconds = String(date.getSeconds()).padStart(2, '0');
return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`;
}
formatValue(value) {
// 处理 null 和 undefined
if (value === null) return 'null';
if (value === undefined) return 'undefined';
// 处理 Object 和 Array 类型
if (typeof value === 'object') {
try {
return JSON.stringify(value);
} catch (e) {
return '[Object]';
}
}
// 其他类型直接返回
return value;
}
showPopover(event, value, col) {
if (!this.popoverElement) return;
// 清除之前的隐藏定时器
if (this.hidePopoverTimeout) {
clearTimeout(this.hidePopoverTimeout);
this.hidePopoverTimeout = null;
}
// 格式化值
let content = col === '_time' ? this.formatTime(value) : this.formatValue(value);
// 对于 JSON 对象/数组,格式化显示
if (typeof value === 'object' && value !== null) {
try {
content = JSON.stringify(value, null, 2);
} catch (e) {
content = String(content);
}
} else {
content = String(content);
}
// 只在内容较长时显示 popover
if (content.length < 50) {
return;
}
// 更新 popover 内容
this.popoverElement.textContent = content;
this.popoverElement.style.display = 'block';
// 使用 dom-align 进行智能定位
// 减小间隙到 2px方便鼠标移入
domAlign(this.popoverElement, event.target, {
points: ['tl', 'tr'], // popover左上角 对齐到 单元格右上角
offset: [2, 0], // 右侧间距仅2px便于鼠标移入
overflow: { adjustX: true, adjustY: true }
});
// 使用 setTimeout 确保 dom-align 完成后再显示
setTimeout(() => {
if (this.popoverElement) {
this.popoverElement.style.opacity = '1';
}
}, 10);
}
hidePopover() {
if (!this.popoverElement) return;
// 延迟隐藏,给用户足够时间移动鼠标到 popover300ms
this.hidePopoverTimeout = setTimeout(() => {
if (this.popoverElement) {
this.popoverElement.style.opacity = '0';
// 等待动画完成后再隐藏
setTimeout(() => {
if (this.popoverElement) {
this.popoverElement.style.display = 'none';
}
}, 150);
}
}, 300);
}
keepPopover() {
// 鼠标进入 popover 时,取消隐藏
if (this.hidePopoverTimeout) {
clearTimeout(this.hidePopoverTimeout);
this.hidePopoverTimeout = null;
}
}
getColumns() {
let columns = [];
if (this.selectedColumns.length > 0) {
columns = [...this.selectedColumns];
} else {
columns = this.schema?.fields?.map(f => f.name) || [];
}
// 确保系统字段的顺序_seq 在开头_time 在倒数第二
const filtered = columns.filter(c => c !== '_seq' && c !== '_time');
// _seq 放开头
const result = ['_seq', ...filtered];
// _time 放倒数第二Actions 列之前)
result.push('_time');
return result;
}
render() {
if (this.loading || !this.schema || !this.tableData) {
return html`<div class="loading">Loading data...</div>`;
}
const columns = this.getColumns();
return html`
${this.renderSchemaSection()}
<h3>Data (${this.formatCount(this.tableData.totalRows)} rows)</h3>
${this.tableData.data.length === 0 ? html`
<div class="empty"><p>No data available</p></div>
` : html`
<div class="table-wrapper">
<table class="data-table">
<thead>
<tr>
${columns.map(col => html`<th>${col}</th>`)}
<th style="text-align: center;">Actions</th>
</tr>
</thead>
<tbody>
${this.tableData.data.map(row => html`
<tr>
${columns.map(col => html`
<td
@mouseenter=${(e) => this.showPopover(e, row[col], col)}
@mouseleave=${() => this.hidePopover()}
>
${col === '_time' ? this.formatTime(row[col]) : this.formatValue(row[col])}
${row[col + '_truncated'] ? html`<span class="truncated-icon">✂️</span>` : ''}
</td>
`)}
<td style="text-align: center;">
<button
class="row-detail-btn"
@click=${() => this.showRowDetail(row._seq)}
>
Detail
</button>
</td>
</tr>
`)}
</tbody>
</table>
</div>
`}
`;
}
renderSchemaSection() {
if (!this.schema || !this.schema.fields) return '';
return html`
<div class="schema-section">
<h3>Schema <span style="font-size: 12px; font-weight: 400; color: var(--text-secondary);">(点击字段卡片选择要显示的列)</span></h3>
<div class="schema-grid">
${this.schema.fields.map(field => html`
<div
class="schema-field-card ${this.selectedColumns.includes(field.name) ? 'selected' : ''}"
@click=${() => this.toggleColumn(field.name)}
>
<div class="field-item">
<div class="field-item-row">
<srdb-field-icon
?indexed=${field.indexed}
class="field-index-icon"
title="${field.indexed ? 'Indexed field (fast)' : 'Not indexed (slow)'}"
></srdb-field-icon>
<span class="field-name">${field.name}</span>
<srdb-badge variant="primary" class="field-type">
${field.type}
</srdb-badge>
</div>
<div class="field-comment">${field.comment || ''}</div>
</div>
</div>
`)}
</div>
</div>
`;
}
}
customElements.define('srdb-data-view', DataView);

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@@ -1,58 +0,0 @@
import { LitElement, html, css } from 'lit';
export class FieldIcon extends LitElement {
static properties = {
indexed: { type: Boolean }
};
static styles = css`
:host {
display: inline-flex;
align-items: center;
justify-content: center;
width: 20px;
height: 20px;
}
svg {
width: 16px;
height: 16px;
}
.indexed {
fill: var(--success);
color: var(--success);
opacity: 1;
}
.not-indexed {
fill: var(--text-secondary);
color: var(--text-secondary);
opacity: 0.6;
}
`;
constructor() {
super();
this.indexed = false;
}
render() {
if (this.indexed) {
// 闪电图标 - 已索引(快速)
return html`
<svg viewBox="0 0 24 24" class="indexed" xmlns="http://www.w3.org/2000/svg" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
<polygon points="13 2 3 14 12 14 11 22 21 10 12 10 13 2" fill="currentColor" stroke="none"/>
</svg>
`;
} else {
// 圆点图标 - 未索引
return html`
<svg viewBox="0 0 24 24" class="not-indexed" xmlns="http://www.w3.org/2000/svg">
<circle cx="12" cy="12" r="4" fill="currentColor"/>
</svg>
`;
}
}
}
customElements.define('srdb-field-icon', FieldIcon);

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@@ -1,320 +0,0 @@
import { LitElement, html, css } from 'lit';
import { sharedStyles, cssVariables } from '~/common/shared-styles.js';
export class ManifestView extends LitElement {
static properties = {
manifestData: { type: Object },
loading: { type: Boolean },
expandedLevels: { type: Set }
};
static styles = [
sharedStyles,
cssVariables,
css`
:host {
display: block;
}
h3 {
font-size: 16px;
font-weight: 600;
margin: 20px 0 12px 0;
color: var(--text-primary);
}
.manifest-stats {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
gap: 16px;
margin-bottom: 24px;
}
.stat-card {
padding: 16px;
background: var(--bg-elevated);
border: 1px solid var(--border-color);
border-radius: var(--radius-md);
}
.stat-label {
font-size: 12px;
color: var(--text-tertiary);
margin-bottom: 8px;
}
.stat-value {
font-size: 20px;
font-weight: 600;
color: var(--text-primary);
}
.level-card {
margin-bottom: 12px;
background: var(--bg-elevated);
border: 1px solid var(--border-color);
border-radius: var(--radius-md);
overflow: hidden;
}
.level-header {
display: flex;
align-items: center;
justify-content: space-between;
padding: 16px;
cursor: pointer;
transition: var(--transition);
}
.level-header:hover {
background: var(--bg-hover);
}
.level-header-left {
display: flex;
align-items: center;
gap: 12px;
flex: 1;
}
.expand-icon {
font-size: 12px;
color: var(--text-secondary);
transition: transform 0.2s ease;
user-select: none;
}
.expand-icon.expanded {
transform: rotate(90deg);
}
.level-title {
font-size: 16px;
font-weight: 600;
color: var(--text-primary);
}
.level-stats {
display: flex;
gap: 16px;
font-size: 13px;
color: var(--text-secondary);
}
.level-files {
padding: 16px;
background: var(--bg-surface);
border-top: 1px solid var(--border-color);
display: none;
}
.level-files.expanded {
display: block;
}
.file-list {
display: grid;
grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
gap: 12px;
}
.file-item {
padding: 12px;
background: var(--bg-elevated);
border: 1px solid var(--border-color);
border-radius: var(--radius-sm);
transition: var(--transition);
}
.file-item:hover {
border-color: var(--primary);
box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}
.file-name {
display: flex;
align-items: center;
justify-content: space-between;
margin-bottom: 8px;
}
.file-name-text {
font-family: 'Courier New', monospace;
font-size: 13px;
color: var(--text-primary);
font-weight: 500;
}
.file-level-badge {
font-size: 11px;
padding: 2px 8px;
background: var(--primary-bg);
color: var(--primary);
border-radius: var(--radius-sm);
font-weight: 600;
font-family: 'Courier New', monospace;
}
.file-detail {
display: flex;
flex-direction: column;
gap: 4px;
font-size: 12px;
color: var(--text-secondary);
}
.file-detail-row {
display: flex;
justify-content: space-between;
}
@media (max-width: 768px) {
.file-list {
grid-template-columns: 1fr;
}
}
.empty {
background: var(--bg-elevated);
border-radius: var(--radius-md);
border: 1px dashed var(--border-color);
margin-top: 24px;
}
.empty p {
margin: 0;
}
`
];
constructor() {
super();
this.manifestData = null;
this.loading = false;
this.expandedLevels = new Set();
}
toggleLevel(levelNum) {
if (this.expandedLevels.has(levelNum)) {
this.expandedLevels.delete(levelNum);
} else {
this.expandedLevels.add(levelNum);
}
this.requestUpdate();
}
formatSize(bytes) {
if (bytes >= 1024 * 1024 * 1024) return (bytes / (1024 * 1024 * 1024)).toFixed(2) + ' GB';
if (bytes >= 1024 * 1024) return (bytes / (1024 * 1024)).toFixed(2) + ' MB';
if (bytes >= 1024) return (bytes / 1024).toFixed(2) + ' KB';
return bytes + ' B';
}
getScoreVariant(score) {
if (score >= 0.8) return 'danger'; // 高分 = 需要紧急 compaction
if (score >= 0.5) return 'warning'; // 中分 = 需要关注
return 'success'; // 低分 = 健康状态
}
render() {
if (this.loading || !this.manifestData) {
return html`<div class="loading">Loading manifest...</div>`;
}
const totalFiles = this.manifestData.levels.reduce((sum, l) => sum + l.file_count, 0);
const totalSize = this.manifestData.levels.reduce((sum, l) => sum + l.total_size, 0);
const totalCompactions = this.manifestData.compaction_stats?.total_compactions || 0;
return html`
<h3>LSM-Tree Structure</h3>
<div class="manifest-stats">
<div class="stat-card">
<div class="stat-label">Active Levels</div>
<div class="stat-value">${this.manifestData.levels.filter(l => l.file_count > 0).length}</div>
</div>
<div class="stat-card">
<div class="stat-label">Total Files</div>
<div class="stat-value">${totalFiles}</div>
</div>
<div class="stat-card">
<div class="stat-label">Total Size</div>
<div class="stat-value">${this.formatSize(totalSize)}</div>
</div>
<div class="stat-card">
<div class="stat-label">Compactions</div>
<div class="stat-value">${totalCompactions}</div>
</div>
</div>
${this.manifestData.levels && this.manifestData.levels.length > 0
? this.manifestData.levels.map(level => this.renderLevelCard(level))
: html`
<div class="empty">
<p>No SSTable files in this table yet.</p>
<p style="font-size: 14px; margin-top: 8px;">Insert some data to see the LSM-Tree structure.</p>
</div>
`
}
`;
}
renderLevelCard(level) {
if (level.file_count === 0) return '';
const isExpanded = this.expandedLevels.has(level.level);
return html`
<div class="level-card">
<div class="level-header" @click=${() => this.toggleLevel(level.level)}>
<div class="level-header-left">
<span class="expand-icon ${isExpanded ? 'expanded' : ''}">▶</span>
<div>
<div class="level-title">Level ${level.level}</div>
<div class="level-stats">
<span>${level.file_count} files</span>
<span>${this.formatSize(level.total_size)}</span>
${level.score !== undefined ? html`
<srdb-badge variant="${this.getScoreVariant(level.score)}">
Score: ${(level.score * 100).toFixed(0)}%
</srdb-badge>
` : ''}
</div>
</div>
</div>
</div>
${level.files && level.files.length > 0 ? html`
<div class="level-files ${isExpanded ? 'expanded' : ''}">
<div class="file-list">
${level.files.map(file => html`
<div class="file-item">
<div class="file-name">
<span class="file-name-text">${file.file_number}.sst</span>
<span class="file-level-badge">L${level.level}</span>
</div>
<div class="file-detail">
<div class="file-detail-row">
<span>Size:</span>
<span>${this.formatSize(file.file_size)}</span>
</div>
<div class="file-detail-row">
<span>Rows:</span>
<span>${file.row_count || 0}</span>
</div>
<div class="file-detail-row">
<span>Seq Range:</span>
<span>${file.min_key} - ${file.max_key}</span>
</div>
</div>
</div>
`)}
</div>
</div>
` : ''}
</div>
`;
}
}
customElements.define('srdb-manifest-view', ManifestView);

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@@ -1,179 +0,0 @@
import { LitElement, html, css } from 'lit';
import { sharedStyles, cssVariables } from '~/common/shared-styles.js';
export class ModalDialog extends LitElement {
static properties = {
open: { type: Boolean },
title: { type: String },
content: { type: String }
};
static styles = [
sharedStyles,
cssVariables,
css`
:host {
display: none;
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: rgba(0, 0, 0, 0.7);
z-index: 1000;
align-items: center;
justify-content: center;
}
:host([open]) {
display: flex;
}
.modal-content {
background: var(--bg-surface);
border-radius: var(--radius-lg);
box-shadow: var(--shadow-xl);
min-width: 324px;
max-width: 90vw;
max-height: 80vh;
width: fit-content;
display: flex;
flex-direction: column;
border: 1px solid var(--border-color);
}
@media (max-width: 768px) {
.modal-content {
min-width: 300px;
max-width: 95vw;
}
}
.modal-header {
display: flex;
align-items: center;
justify-content: space-between;
padding: 20px 24px;
border-bottom: 1px solid var(--border-color);
}
.modal-header h3 {
margin: 0;
font-size: 18px;
font-weight: 600;
color: var(--text-primary);
}
.modal-close {
background: transparent;
border: none;
color: var(--text-secondary);
cursor: pointer;
padding: 4px;
display: flex;
align-items: center;
justify-content: center;
border-radius: var(--radius-sm);
transition: var(--transition);
}
.modal-close:hover {
background: var(--bg-hover);
color: var(--text-primary);
}
.modal-body {
padding: 24px;
overflow-y: auto;
flex: 1;
}
pre {
/*background: var(--bg-elevated);*/
padding: 16px;
border-radius: var(--radius-md);
overflow-x: auto;
color: var(--text-primary);
font-family: 'Courier New', monospace;
font-size: 13px;
line-height: 1.5;
margin: 0;
white-space: pre-wrap;
word-wrap: break-word;
}
`
];
constructor() {
super();
this.open = false;
this.title = 'Content';
this.content = '';
this._handleKeyDown = this._handleKeyDown.bind(this);
}
connectedCallback() {
super.connectedCallback();
document.addEventListener('keydown', this._handleKeyDown);
}
disconnectedCallback() {
super.disconnectedCallback();
document.removeEventListener('keydown', this._handleKeyDown);
}
updated(changedProperties) {
if (changedProperties.has('open')) {
if (this.open) {
this.setAttribute('open', '');
} else {
this.removeAttribute('open');
}
}
}
_handleKeyDown(e) {
if (this.open && e.key === 'Escape') {
this.close();
}
}
close() {
this.open = false;
this.dispatchEvent(new CustomEvent('modal-close', {
bubbles: true,
composed: true
}));
}
render() {
return html`
<div class="modal-content" @click=${(e) => e.stopPropagation()}>
<div class="modal-header">
<h3>${this.title}</h3>
<button class="modal-close" @click=${this.close}>
<svg
xmlns="http://www.w3.org/2000/svg"
width="20"
height="20"
viewBox="0 0 24 24"
fill="none"
stroke="currentColor"
stroke-width="2"
stroke-linecap="round"
stroke-linejoin="round"
>
<line x1="18" y1="6" x2="6" y2="18"></line>
<line x1="6" y1="6" x2="18" y2="18"></line>
</svg>
</button>
</div>
<div class="modal-body">
<pre>${this.content}</pre>
</div>
</div>
`;
}
}
customElements.define('srdb-modal-dialog', ModalDialog);

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@@ -1,267 +0,0 @@
import { LitElement, html, css } from 'lit';
import { sharedStyles, cssVariables } from '~/common/shared-styles.js';
export class PageHeader extends LitElement {
static properties = {
tableName: { type: String },
view: { type: String }
};
static styles = [
sharedStyles,
cssVariables,
css`
:host {
display: block;
background: var(--bg-surface);
border-bottom: 1px solid var(--border-color);
position: sticky;
top: 0;
z-index: 10;
}
.header-content {
padding: 16px 24px;
}
.header-top {
display: flex;
align-items: center;
gap: 16px;
margin-bottom: 12px;
}
.mobile-menu-btn {
display: none;
width: 40px;
height: 40px;
background: var(--primary);
border: none;
border-radius: var(--radius-md);
color: white;
cursor: pointer;
flex-shrink: 0;
transition: var(--transition);
}
.mobile-menu-btn:hover {
background: var(--primary-dark);
}
.mobile-menu-btn svg {
width: 20px;
height: 20px;
}
h2 {
font-size: 24px;
font-weight: 600;
margin: 0;
color: var(--text-primary);
}
.empty-state {
text-align: center;
padding: 20px;
color: var(--text-secondary);
}
.view-tabs {
display: flex;
align-items: center;
gap: 8px;
border-bottom: 1px solid var(--border-color);
margin: 0 -12px;
padding: 0 24px;
}
.refresh-btn {
margin-left: auto;
padding: 8px 12px;
background: transparent;
border: 1px solid var(--border-color);
border-radius: var(--radius-sm);
color: var(--text-secondary);
cursor: pointer;
transition: var(--transition);
display: flex;
align-items: center;
gap: 6px;
font-size: 13px;
}
.refresh-btn:hover {
background: var(--bg-hover);
border-color: var(--border-hover);
color: var(--text-primary);
}
.refresh-btn svg {
width: 16px;
height: 16px;
}
.view-tab {
position: relative;
padding: 16px 20px;
background: transparent;
border: none;
color: var(--text-secondary);
cursor: pointer;
font-size: 14px;
font-weight: 500;
transition: var(--transition);
}
.view-tab:hover {
color: var(--text-primary);
/*background: var(--bg-hover);*/
}
.view-tab.active {
color: var(--primary);
}
.view-tab::before,
.view-tab::after {
position: absolute;
display: block;
content: "";
z-index: 0;
opacity: 0;
inset-inline: 8px;
}
.view-tab::before {
inset-block: 8px;
border-radius: var(--radius-md);
background: var(--bg-elevated);
}
.view-tab::after {
border-radius: var(--radius-md);
background: var(--primary);
bottom: -2px;
height: 4px;
}
.view-tab.active::before,
.view-tab.active::after,
.view-tab:hover::before {
opacity: 1;
}
.view-tab span {
position: relative;
z-index: 1;
}
@media (max-width: 768px) {
.mobile-menu-btn {
display: flex;
align-items: center;
justify-content: center;
}
.header-content {
padding: 12px 16px;
}
h2 {
font-size: 18px;
flex: 1;
}
.view-tabs {
margin: 0 -16px;
padding: 0 16px;
}
.view-tab {
padding: 8px 16px;
font-size: 13px;
}
}
`
];
constructor() {
super();
this.tableName = '';
this.view = 'data';
}
switchView(newView) {
this.view = newView;
this.dispatchEvent(new CustomEvent('view-changed', {
detail: { view: newView },
bubbles: true,
composed: true
}));
}
toggleMobileMenu() {
this.dispatchEvent(new CustomEvent('toggle-mobile-menu', {
bubbles: true,
composed: true
}));
}
refreshView() {
this.dispatchEvent(new CustomEvent('refresh-view', {
detail: { view: this.view },
bubbles: true,
composed: true
}));
}
render() {
if (!this.tableName) {
return html`
<div class="header-content">
<div class="empty-state">
<p>Select a table from the sidebar</p>
</div>
</div>
`;
}
return html`
<div class="header-content">
<div class="header-top">
<button class="mobile-menu-btn" @click=${this.toggleMobileMenu}>
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
<line x1="3" y1="12" x2="21" y2="12"></line>
<line x1="3" y1="6" x2="21" y2="6"></line>
<line x1="3" y1="18" x2="21" y2="18"></line>
</svg>
</button>
<h2>${this.tableName}</h2>
</div>
</div>
<div class="view-tabs">
<button
class="view-tab ${this.view === 'data' ? 'active' : ''}"
@click=${() => this.switchView('data')}
>
<span>Data</span>
</button>
<button
class="view-tab ${this.view === 'manifest' ? 'active' : ''}"
@click=${() => this.switchView('manifest')}
>
<span>Manifest / Storage Layers</span>
</button>
<button class="refresh-btn" @click=${this.refreshView} title="Refresh current view">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
<path d="M21.5 2v6h-6M2.5 22v-6h6M2 11.5a10 10 0 0 1 18.8-4.3M22 12.5a10 10 0 0 1-18.8 4.2"/>
</svg>
<span>Refresh</span>
</button>
</div>
`;
}
}
customElements.define('srdb-page-header', PageHeader);

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@@ -1,283 +0,0 @@
import { LitElement, html, css } from 'lit';
import { sharedStyles, cssVariables } from '~/common/shared-styles.js';
import { tableAPI } from '~/common/api.js';
export class TableList extends LitElement {
static properties = {
tables: { type: Array },
selectedTable: { type: String },
expandedTables: { type: Set }
};
static styles = [
sharedStyles,
cssVariables,
css`
:host {
display: block;
width: 100%;
}
.table-item {
margin-bottom: 8px;
background: var(--bg-elevated);
border: 1px solid var(--border-color);
border-radius: var(--radius-md);
overflow: hidden;
transition: var(--transition);
}
.table-item:hover {
border-color: var(--border-hover);
}
.table-item.selected {
border-color: var(--primary);
box-shadow: 0 0 0 1px var(--primary);
}
.table-item.selected .table-header {
background: var(--primary-bg);
}
.table-header {
display: flex;
align-items: center;
justify-content: space-between;
padding: 10px 12px;
cursor: pointer;
transition: var(--transition);
}
.table-header:hover {
background: var(--bg-hover);
}
.table-item.has-expanded .table-header {
border-bottom-color: var(--border-color);
}
.table-header-left {
display: flex;
align-items: center;
gap: 8px;
flex: 1;
min-width: 0;
}
.expand-icon {
display: flex;
align-items: center;
justify-content: center;
width: 24px;
height: 24px;
font-size: 12px;
transition: var(--transition);
flex-shrink: 0;
border-radius: var(--radius-sm);
cursor: pointer;
color: var(--text-secondary);
}
.expand-icon:hover {
background: var(--bg-hover);
color: var(--text-primary);
}
.expand-icon.expanded {
transform: rotate(90deg);
color: var(--primary);
}
.table-name {
font-weight: 500;
color: var(--text-primary);
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
}
.table-count {
font-size: 12px;
color: var(--text-tertiary);
white-space: nowrap;
flex-shrink: 0;
}
/* Schema 字段列表 */
.schema-fields {
display: none;
flex-direction: column;
border-top: 1px solid transparent;
transition: var(--transition);
position: relative;
}
.schema-fields.expanded {
display: block;
border-top-color: var(--border-color);
}
/* 共享的垂直线 */
.schema-fields.expanded::before {
z-index: 2;
content: "";
position: absolute;
left: 24px;
top: 0;
bottom: 24px;
width: 1px;
background: var(--border-color);
}
.field-item {
z-index: 1;
display: flex;
align-items: center;
gap: 8px;
padding: 8px 12px 8px 24px;
font-size: 12px;
transition: var(--transition);
position: relative;
}
/* 每个字段的水平线 */
.field-item::before {
content: "";
width: 8px;
height: 1px;
background: var(--border-color);
}
.field-item:hover {
background: var(--bg-hover);
}
.field-item:last-child {
padding-bottom: 12px;
}
.field-index-icon {
display: flex;
align-items: center;
justify-content: center;
width: 20px;
height: 20px;
font-size: 14px;
flex-shrink: 0;
}
.field-index-icon.indexed {
color: var(--success);
}
.field-index-icon.not-indexed {
color: var(--text-tertiary);
opacity: 0.5;
}
.field-name {
font-weight: 500;
color: var(--text-secondary);
flex: 1;
}
.field-type {
font-family: 'Courier New', monospace;
}
.loading {
padding: 20px;
}
.error {
text-align: center;
padding: 20px;
color: var(--danger);
}
`
];
constructor() {
super();
this.tables = [];
this.selectedTable = '';
this.expandedTables = new Set();
}
connectedCallback() {
super.connectedCallback();
this.loadTables();
}
async loadTables() {
try {
this.tables = await tableAPI.list();
} catch (error) {
console.error('Error loading tables:', error);
}
}
toggleExpand(tableName, event) {
event.stopPropagation();
if (this.expandedTables.has(tableName)) {
this.expandedTables.delete(tableName);
} else {
this.expandedTables.add(tableName);
}
this.requestUpdate();
}
selectTable(tableName) {
this.selectedTable = tableName;
this.dispatchEvent(new CustomEvent('table-selected', {
detail: { tableName },
bubbles: true,
composed: true
}));
}
render() {
if (this.tables.length === 0) {
return html`<div class="loading">Loading tables...</div>`;
}
return html`
${this.tables.map(table => html`
<div class="table-item ${this.expandedTables.has(table.name) ? 'has-expanded' : ''} ${this.selectedTable === table.name ? 'selected' : ''}">
<div
class="table-header"
@click=${() => this.selectTable(table.name)}
>
<div class="table-header-left">
<span
class="expand-icon ${this.expandedTables.has(table.name) ? 'expanded' : ''}"
@click=${(e) => this.toggleExpand(table.name, e)}
>
</span>
<span class="table-name">${table.name}</span>
</div>
<span class="table-count">${table.fields.length} fields</span>
</div>
<div class="schema-fields ${this.expandedTables.has(table.name) ? 'expanded' : ''}">
${table.fields.map(field => html`
<div class="field-item">
<srdb-field-icon
?indexed=${field.indexed}
class="field-index-icon"
title="${field.indexed ? 'Indexed field (fast)' : 'Not indexed (slow)'}"
></srdb-field-icon>
<span class="field-name">${field.name}</span>
<srdb-badge variant="primary" class="field-type">
${field.type}
</srdb-badge>
</div>
`)}
</div>
</div>
`)}
`;
}
}
customElements.define('srdb-table-list', TableList);

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@@ -1,376 +0,0 @@
import { LitElement, html, css } from 'lit';
import { sharedStyles, cssVariables } from '~/common/shared-styles.js';
import { tableAPI } from '~/common/api.js';
export class TableView extends LitElement {
static properties = {
tableName: { type: String },
view: { type: String }, // 'data' or 'manifest'
schema: { type: Object },
tableData: { type: Object },
manifestData: { type: Object },
selectedColumns: { type: Array },
page: { type: Number },
pageSize: { type: Number },
loading: { type: Boolean }
};
static styles = [
sharedStyles,
cssVariables,
css`
:host {
display: flex;
flex-direction: column;
width: 100%;
flex: 1;
position: relative;
overflow: hidden;
}
.content-wrapper {
flex: 1;
overflow-y: auto;
padding: 24px;
padding-bottom: 80px;
}
.pagination {
position: fixed;
bottom: 0;
left: 280px;
right: 0;
display: flex;
align-items: center;
justify-content: center;
gap: 12px;
padding: 16px 24px;
background: var(--bg-elevated);
border-top: 1px solid var(--border-color);
z-index: 10;
}
@media (max-width: 768px) {
.pagination {
left: 0;
}
}
.pagination button {
padding: 8px 16px;
background: var(--bg-surface);
color: var(--text-primary);
border: 1px solid var(--border-color);
border-radius: var(--radius-sm);
cursor: pointer;
transition: var(--transition);
}
.pagination button:hover:not(:disabled) {
background: var(--bg-hover);
border-color: var(--border-hover);
}
.pagination button:disabled {
opacity: 0.5;
cursor: not-allowed;
}
.pagination select,
.pagination input {
padding: 8px 12px;
background: var(--bg-surface);
color: var(--text-primary);
border: 1px solid var(--border-color);
border-radius: var(--radius-sm);
}
.pagination input {
width: 80px;
}
.pagination span {
color: var(--text-primary);
font-size: 14px;
}
`
];
constructor() {
super();
this.tableName = '';
this.view = 'data';
this.schema = null;
this.tableData = null;
this.manifestData = null;
this.selectedColumns = [];
this.page = 1;
this.pageSize = 20;
this.loading = false;
}
updated(changedProperties) {
if (changedProperties.has('tableName') && this.tableName) {
// 切换表时重置选中的列
this.selectedColumns = [];
this.page = 1;
this.loadData();
}
if (changedProperties.has('view') && this.tableName) {
this.loadData();
}
}
async loadData() {
if (!this.tableName) return;
this.loading = true;
try {
// Load schema
this.schema = await tableAPI.getSchema(this.tableName);
// Initialize selected columns from localStorage or all by default
if (this.schema.fields) {
const saved = this.loadSelectedColumns();
if (saved && saved.length > 0) {
// 验证保存的列是否仍然存在于当前 schema 中
const validColumns = saved.filter(col =>
this.schema.fields.some(field => field.name === col)
);
this.selectedColumns = validColumns.length > 0 ? validColumns : this.schema.fields.map(f => f.name);
} else {
this.selectedColumns = this.schema.fields.map(f => f.name);
}
}
if (this.view === 'data') {
await this.loadTableData();
} else if (this.view === 'manifest') {
await this.loadManifestData();
}
} catch (error) {
console.error('Error loading data:', error);
} finally {
this.loading = false;
}
}
async loadTableData() {
this.tableData = await tableAPI.getData(this.tableName, {
page: this.page,
pageSize: this.pageSize,
select: this.selectedColumns.join(',')
});
}
async loadManifestData() {
this.manifestData = await tableAPI.getManifest(this.tableName);
}
switchView(newView) {
this.view = newView;
}
loadSelectedColumns() {
if (!this.tableName) return null;
const key = `srdb_columns_${this.tableName}`;
const saved = localStorage.getItem(key);
return saved ? JSON.parse(saved) : null;
}
toggleColumn(columnName) {
const index = this.selectedColumns.indexOf(columnName);
if (index > -1) {
this.selectedColumns = this.selectedColumns.filter(c => c !== columnName);
} else {
this.selectedColumns = [...this.selectedColumns, columnName];
}
this.loadTableData();
}
changePage(delta) {
this.page = Math.max(1, this.page + delta);
this.loadTableData();
}
changePageSize(newSize) {
this.pageSize = parseInt(newSize);
this.page = 1;
this.loadTableData();
}
jumpToPage(pageNum) {
const num = parseInt(pageNum);
if (num > 0 && this.tableData && num <= this.tableData.totalPages) {
this.page = num;
this.loadTableData();
}
}
showRowDetail(seq) {
this.dispatchEvent(new CustomEvent('show-row-detail', {
detail: { tableName: this.tableName, seq },
bubbles: true,
composed: true
}));
}
toggleLevel(level) {
const levelCard = this.shadowRoot.querySelector(`[data-level="${level}"]`);
if (levelCard) {
const fileList = levelCard.querySelector('.file-list');
const icon = levelCard.querySelector('.expand-icon');
if (fileList.classList.contains('expanded')) {
fileList.classList.remove('expanded');
icon.style.transform = 'rotate(0deg)';
} else {
fileList.classList.add('expanded');
icon.style.transform = 'rotate(90deg)';
}
}
}
formatBytes(bytes) {
if (bytes === 0) return '0 B';
const k = 1024;
const sizes = ['B', 'KB', 'MB', 'GB', 'TB'];
const i = Math.floor(Math.log(bytes) / Math.log(k));
return (bytes / Math.pow(k, i)).toFixed(2) + ' ' + sizes[i];
}
formatCount(count) {
if (count >= 1000000) return (count / 1000000).toFixed(1) + 'M';
if (count >= 1000) return (count / 1000).toFixed(1) + 'K';
return count.toString();
}
render() {
if (!this.tableName) {
return html`
<div class="empty">
<h2>Select a table to view data</h2>
<p>Choose a table from the sidebar to get started</p>
</div>
`;
}
if (this.loading) {
return html`<div class="loading">Loading...</div>`;
}
return html`
<div class="content-wrapper">
${this.view === 'data' ? html`
<srdb-data-view
.tableName=${this.tableName}
.schema=${this.schema}
.tableData=${this.tableData}
.selectedColumns=${this.selectedColumns}
.loading=${this.loading}
@columns-changed=${(e) => {
this.selectedColumns = e.detail.columns;
this.loadTableData();
}}
@show-row-detail=${(e) => this.showRowDetail(e.detail.seq)}
></srdb-data-view>
` : html`
<srdb-manifest-view
.manifestData=${this.manifestData}
.loading=${this.loading}
></srdb-manifest-view>
`}
</div>
${this.view === 'data' && this.tableData ? this.renderPagination() : ''}
`;
}
renderPagination() {
return html`
<div class="pagination">
<select @change=${(e) => this.changePageSize(e.target.value)}>
${[10, 20, 50, 100].map(size => html`
<option value="${size}" ?selected=${size === this.pageSize}>
${size} / page
</option>
`)}
</select>
<button
@click=${() => this.changePage(-1)}
?disabled=${this.page <= 1}
>
Previous
</button>
<span>
Page ${this.page} of ${this.tableData.totalPages}
(${this.formatCount(this.tableData.totalRows)} rows)
</span>
<input
type="number"
min="1"
max="${this.tableData.totalPages}"
placeholder="Jump to"
@keydown=${(e) => e.key === 'Enter' && this.jumpToPage(e.target.value)}
/>
<button @click=${(e) => this.jumpToPage(e.target.previousElementSibling.value)}>
Go
</button>
<button
@click=${() => this.changePage(1)}
?disabled=${this.page >= this.tableData.totalPages}
>
Next
</button>
</div>
`;
}
formatCount(count) {
if (count >= 1000000) return (count / 1000000).toFixed(1) + 'M';
if (count >= 1000) return (count / 1000).toFixed(1) + 'K';
return count.toString();
}
changePage(delta) {
this.page = Math.max(1, this.page + delta);
this.loadTableData();
}
changePageSize(newSize) {
this.pageSize = parseInt(newSize);
this.page = 1;
this.loadTableData();
}
jumpToPage(pageNum) {
const num = parseInt(pageNum);
if (num > 0 && this.tableData && num <= this.tableData.totalPages) {
this.page = num;
this.loadTableData();
}
}
showRowDetail(seq) {
this.dispatchEvent(new CustomEvent('show-row-detail', {
detail: { tableName: this.tableName, seq },
bubbles: true,
composed: true
}));
}
showCellContent(content) {
this.dispatchEvent(new CustomEvent('show-cell-content', {
detail: { content },
bubbles: true,
composed: true
}));
}
}
customElements.define('srdb-table-view', TableView);

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@@ -1,123 +0,0 @@
import { LitElement, html, css } from 'lit';
import { sharedStyles } from '~/common/shared-styles.js';
export class ThemeToggle extends LitElement {
static properties = {
theme: { type: String }
};
static styles = [
sharedStyles,
css`
:host {
display: inline-block;
}
.theme-toggle {
display: flex;
align-items: center;
gap: 8px;
padding: 8px 12px;
background: var(--bg-elevated);
border: 1px solid var(--border-color);
border-radius: var(--radius-md);
cursor: pointer;
transition: var(--transition);
font-size: 14px;
color: var(--text-primary);
}
.theme-toggle:hover {
background: var(--bg-hover);
border-color: var(--border-hover);
}
.icon {
font-size: 18px;
display: flex;
align-items: center;
}
.label {
font-weight: 500;
}
`
];
constructor() {
super();
// 从 localStorage 读取主题,默认为 dark
this.theme = localStorage.getItem('srdb-theme') || 'dark';
this.applyTheme();
}
toggleTheme() {
this.theme = this.theme === 'dark' ? 'light' : 'dark';
localStorage.setItem('srdb-theme', this.theme);
this.applyTheme();
// 触发主题变化事件
this.dispatchEvent(new CustomEvent('theme-changed', {
detail: { theme: this.theme },
bubbles: true,
composed: true
}));
}
applyTheme() {
const root = document.documentElement;
if (this.theme === 'light') {
// 浅色主题
root.style.setProperty('--srdb-bg-main', '#ffffff');
root.style.setProperty('--srdb-bg-surface', '#f5f5f5');
root.style.setProperty('--srdb-bg-elevated', '#e5e5e5');
root.style.setProperty('--srdb-bg-hover', '#d4d4d4');
root.style.setProperty('--srdb-text-primary', '#1a1a1a');
root.style.setProperty('--srdb-text-secondary', '#666666');
root.style.setProperty('--srdb-text-tertiary', '#999999');
root.style.setProperty('--srdb-border-color', 'rgba(0, 0, 0, 0.1)');
root.style.setProperty('--srdb-border-hover', 'rgba(0, 0, 0, 0.2)');
root.style.setProperty('--srdb-shadow-sm', '0 1px 2px 0 rgba(0, 0, 0, 0.05)');
root.style.setProperty('--srdb-shadow-md', '0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06)');
root.style.setProperty('--srdb-shadow-lg', '0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05)');
root.style.setProperty('--srdb-shadow-xl', '0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04)');
} else {
// 深色主题(默认值)
root.style.setProperty('--srdb-bg-main', '#0f0f1a');
root.style.setProperty('--srdb-bg-surface', '#1a1a2e');
root.style.setProperty('--srdb-bg-elevated', '#222236');
root.style.setProperty('--srdb-bg-hover', '#2a2a3e');
root.style.setProperty('--srdb-text-primary', '#ffffff');
root.style.setProperty('--srdb-text-secondary', '#a0a0b0');
root.style.setProperty('--srdb-text-tertiary', '#6b6b7b');
root.style.setProperty('--srdb-border-color', 'rgba(255, 255, 255, 0.1)');
root.style.setProperty('--srdb-border-hover', 'rgba(255, 255, 255, 0.2)');
root.style.setProperty('--srdb-shadow-sm', '0 1px 2px 0 rgba(0, 0, 0, 0.3)');
root.style.setProperty('--srdb-shadow-md', '0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3)');
root.style.setProperty('--srdb-shadow-lg', '0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3)');
root.style.setProperty('--srdb-shadow-xl', '0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.3)');
}
}
render() {
return html`
<button class="theme-toggle" @click=${this.toggleTheme}>
<span class="icon">
${this.theme === 'dark' ? '🌙' : '☀️'}
</span>
<span class="label">
${this.theme === 'dark' ? 'Dark' : 'Light'}
</span>
</button>
`;
}
}
customElements.define('srdb-theme-toggle', ThemeToggle);

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@@ -0,0 +1,155 @@
import { useEffect, useRef } from 'preact/hooks';
import domAlign from 'dom-align';
export function useCellPopover() {
const popoverRef = useRef(null);
const hideTimeoutRef = useRef(null);
const targetCellRef = useRef(null);
useEffect(() => {
// 创建 popover 元素
const popover = document.createElement('div');
popover.className = 'srdb-popover';
updatePopoverStyles(popover);
document.body.appendChild(popover);
popoverRef.current = popover;
// 添加样式
addPopoverStyles();
// 监听主题变化
const observer = new MutationObserver(() => {
updatePopoverStyles(popover);
});
observer.observe(document.documentElement, {
attributes: true,
attributeFilter: ['data-theme']
});
// 清理
return () => {
if (popover) {
popover.remove();
}
observer.disconnect();
};
}, []);
const updatePopoverStyles = (popover) => {
const rootStyles = getComputedStyle(document.documentElement);
const bgElevated = rootStyles.getPropertyValue('--bg-elevated').trim();
const textPrimary = rootStyles.getPropertyValue('--text-primary').trim();
const borderColor = rootStyles.getPropertyValue('--border-color').trim();
const shadowMd = rootStyles.getPropertyValue('--shadow-md').trim();
popover.style.cssText = `
position: fixed;
z-index: 9999;
background: ${bgElevated};
border: 1px solid ${borderColor};
border-radius: 8px;
box-shadow: ${shadowMd};
padding: 12px;
max-width: 500px;
max-height: 400px;
overflow: auto;
font-size: 13px;
color: ${textPrimary};
white-space: pre-wrap;
word-break: break-word;
font-family: 'Courier New', monospace;
opacity: 0;
transition: opacity 0.15s ease-in-out, background 0.3s ease, color 0.3s ease;
display: none;
pointer-events: auto;
`;
};
const addPopoverStyles = () => {
if (document.getElementById('srdb-popover-styles')) return;
const style = document.createElement('style');
style.id = 'srdb-popover-styles';
style.textContent = `
.srdb-popover::-webkit-scrollbar {
width: 8px;
height: 8px;
}
.srdb-popover::-webkit-scrollbar-track {
background: var(--bg-surface);
border-radius: 4px;
}
.srdb-popover::-webkit-scrollbar-thumb {
background: var(--border-color);
border-radius: 4px;
}
.srdb-popover::-webkit-scrollbar-thumb:hover {
background: var(--border-hover);
}
`;
document.head.appendChild(style);
};
const showPopover = (e, content) => {
if (!popoverRef.current) return;
// 清除隐藏定时器
if (hideTimeoutRef.current) {
clearTimeout(hideTimeoutRef.current);
hideTimeoutRef.current = null;
}
// 只在内容较长时显示
if (content.length < 50) {
return;
}
// 更新 popover
popoverRef.current.textContent = content;
popoverRef.current.style.display = 'block';
targetCellRef.current = e.target;
// 使用 dom-align 定位
domAlign(popoverRef.current, e.target, {
points: ['tl', 'tr'],
offset: [2, 0],
overflow: { adjustX: true, adjustY: true }
});
// 显示动画
setTimeout(() => {
if (popoverRef.current) {
popoverRef.current.style.opacity = '1';
}
}, 10);
// 添加鼠标事件监听
popoverRef.current.addEventListener('mouseenter', keepPopover);
popoverRef.current.addEventListener('mouseleave', hidePopover);
};
const hidePopover = () => {
hideTimeoutRef.current = setTimeout(() => {
if (popoverRef.current) {
popoverRef.current.style.opacity = '0';
setTimeout(() => {
if (popoverRef.current) {
popoverRef.current.style.display = 'none';
}
}, 150);
}
}, 300);
};
const keepPopover = () => {
if (hideTimeoutRef.current) {
clearTimeout(hideTimeoutRef.current);
hideTimeoutRef.current = null;
}
};
return {
showPopover,
hidePopover
};
}

View File

@@ -0,0 +1,76 @@
import { useRef, useEffect } from 'preact/hooks';
import align from 'dom-align';
export function useTooltip() {
const tooltipRef = useRef(null);
const hideTimeoutRef = useRef(null);
useEffect(() => {
// 创建 tooltip 元素
const tooltip = document.createElement('div');
tooltip.className = 'srdb-tooltip';
tooltip.style.cssText = `
position: absolute;
z-index: 1000;
background: var(--bg-elevated);
border: 1px solid var(--border-color);
border-radius: var(--radius-sm);
padding: 8px 12px;
font-size: 13px;
color: var(--text-primary);
box-shadow: var(--shadow-lg);
max-width: 300px;
word-wrap: break-word;
display: none;
pointer-events: none;
`;
document.body.appendChild(tooltip);
tooltipRef.current = tooltip;
return () => {
if (tooltipRef.current) {
document.body.removeChild(tooltipRef.current);
}
if (hideTimeoutRef.current) {
clearTimeout(hideTimeoutRef.current);
}
};
}, []);
const showTooltip = (target, comment) => {
if (!tooltipRef.current || !comment) return;
// 清除之前的隐藏定时器
if (hideTimeoutRef.current) {
clearTimeout(hideTimeoutRef.current);
hideTimeoutRef.current = null;
}
const tooltip = tooltipRef.current;
tooltip.textContent = comment;
tooltip.style.display = 'block';
// 使用 dom-align 对齐到目标元素下方
align(tooltip, target, {
points: ['tc', 'bc'],
offset: [0, -8],
overflow: {
adjustX: true,
adjustY: true
}
});
};
const hideTooltip = () => {
if (!tooltipRef.current) return;
// 延迟隐藏,避免闪烁
hideTimeoutRef.current = setTimeout(() => {
if (tooltipRef.current) {
tooltipRef.current.style.display = 'none';
}
}, 100);
};
return { showTooltip, hideTooltip };
}

View File

@@ -1,108 +1,6 @@
import '~/components/app.js'; import { render } from 'preact';
import '~/components/table-list.js'; import { html } from 'htm/preact';
import '~/components/table-view.js'; import { App } from './components/App.js';
import '~/components/modal-dialog.js';
import '~/components/theme-toggle.js';
import '~/components/badge.js';
import '~/components/field-icon.js';
import '~/components/data-view.js';
import '~/components/manifest-view.js';
import '~/components/page-header.js';
import { tableAPI } from '~/common/api.js';
class App { // 渲染应用
constructor() { render(html`<${App} />`, document.getElementById('app'));
// 等待 srdb-app 组件渲染完成
this.appContainer = document.querySelector('srdb-app');
this.modal = document.querySelector('srdb-modal-dialog');
// 等待组件初始化
if (this.appContainer) {
// 使用 updateComplete 等待组件渲染完成
this.appContainer.updateComplete.then(() => {
this.tableList = this.appContainer.shadowRoot.querySelector('srdb-table-list');
this.tableView = this.appContainer.shadowRoot.querySelector('srdb-table-view');
this.pageHeader = this.appContainer.shadowRoot.querySelector('srdb-page-header');
this.setupEventListeners();
});
} else {
// 如果组件还未定义,等待它被定义
customElements.whenDefined('srdb-app').then(() => {
this.appContainer = document.querySelector('srdb-app');
this.appContainer.updateComplete.then(() => {
this.tableList = this.appContainer.shadowRoot.querySelector('srdb-table-list');
this.tableView = this.appContainer.shadowRoot.querySelector('srdb-table-view');
this.pageHeader = this.appContainer.shadowRoot.querySelector('srdb-page-header');
this.setupEventListeners();
});
});
}
}
setupEventListeners() {
// Listen for table selection
document.addEventListener('table-selected', (e) => {
const tableName = e.detail.tableName;
this.pageHeader.tableName = tableName;
this.pageHeader.view = 'data';
this.tableView.tableName = tableName;
this.tableView.view = 'data';
this.tableView.page = 1;
});
// Listen for view change from page-header
document.addEventListener('view-changed', (e) => {
this.tableView.view = e.detail.view;
});
// Listen for refresh request from page-header
document.addEventListener('refresh-view', (e) => {
this.tableView.loadData();
});
// Listen for row detail request
document.addEventListener('show-row-detail', async (e) => {
const { tableName, seq } = e.detail;
await this.showRowDetail(tableName, seq);
});
// Listen for cell content request
document.addEventListener('show-cell-content', (e) => {
this.showCellContent(e.detail.content);
});
// Close modal on backdrop click
this.modal.addEventListener('click', () => {
this.modal.open = false;
});
}
async showRowDetail(tableName, seq) {
try {
const data = await tableAPI.getRow(tableName, seq);
const content = JSON.stringify(data, null, 2);
this.modal.title = `Row Detail - Seq: ${seq}`;
this.modal.content = content;
this.modal.open = true;
} catch (error) {
console.error('Error loading row detail:', error);
this.modal.title = 'Error';
this.modal.content = `Failed to load row detail: ${error.message}`;
this.modal.open = true;
}
}
showCellContent(content) {
this.modal.title = 'Cell Content';
this.modal.content = String(content);
this.modal.open = true;
}
}
// Initialize app when DOM is ready
if (document.readyState === 'loading') {
document.addEventListener('DOMContentLoaded', () => new App());
} else {
new App();
}

View File

@@ -17,13 +17,13 @@ import (
//go:embed static //go:embed static
var staticFS embed.FS var staticFS embed.FS
// WebUI Web 界面处理器 // WebUI Web 界面处理器 v2 (Preact)
type WebUI struct { type WebUI struct {
db *srdb.Database db *srdb.Database
handler http.Handler handler http.Handler
} }
// NewWebUI 创建 WebUI 实例 // NewWebUI 创建 WebUI v2 实例
func NewWebUI(db *srdb.Database) *WebUI { func NewWebUI(db *srdb.Database) *WebUI {
ui := &WebUI{db: db} ui := &WebUI{db: db}
ui.handler = ui.setupHandler() ui.handler = ui.setupHandler()
@@ -34,7 +34,7 @@ func NewWebUI(db *srdb.Database) *WebUI {
func (ui *WebUI) setupHandler() http.Handler { func (ui *WebUI) setupHandler() http.Handler {
mux := http.NewServeMux() mux := http.NewServeMux()
// API endpoints - 纯 JSON API // API endpoints - 纯 JSON API(与 v1 共享)
mux.HandleFunc("/api/tables", ui.handleListTables) mux.HandleFunc("/api/tables", ui.handleListTables)
mux.HandleFunc("/api/tables/", ui.handleTableAPI) mux.HandleFunc("/api/tables/", ui.handleTableAPI)
@@ -74,6 +74,7 @@ func (ui *WebUI) handleListTables(w http.ResponseWriter, r *http.Request) {
type TableListItem struct { type TableListItem struct {
Name string `json:"name"` Name string `json:"name"`
RowCount int64 `json:"row_count,omitempty"`
CreatedAt int64 `json:"created_at"` CreatedAt int64 `json:"created_at"`
Fields []FieldInfo `json:"fields"` Fields []FieldInfo `json:"fields"`
} }
@@ -92,8 +93,18 @@ func (ui *WebUI) handleListTables(w http.ResponseWriter, r *http.Request) {
}) })
} }
// 尝试获取行数(通过快速查询)
rowCount := int64(0)
if rows, err := table.Query().Rows(); err == nil {
for rows.Next() {
rowCount++
}
rows.Close()
}
tables = append(tables, TableListItem{ tables = append(tables, TableListItem{
Name: name, Name: name,
RowCount: rowCount,
CreatedAt: 0, // TODO: Table 不再有 createdAt 字段 CreatedAt: 0, // TODO: Table 不再有 createdAt 字段
Fields: fields, Fields: fields,
}) })
@@ -105,7 +116,9 @@ func (ui *WebUI) handleListTables(w http.ResponseWriter, r *http.Request) {
}) })
w.Header().Set("Content-Type", "application/json") w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(tables) json.NewEncoder(w).Encode(map[string]any{
"tables": tables,
})
} }
// handleTableAPI 处理表相关的 API 请求 // handleTableAPI 处理表相关的 API 请求
@@ -217,9 +230,9 @@ func (ui *WebUI) handleTableManifest(w http.ResponseWriter, r *http.Request, tab
// 获取 Compaction Manager // 获取 Compaction Manager
compactionMgr := table.GetCompactionManager() compactionMgr := table.GetCompactionManager()
levels := make([]LevelInfo, 0, 7) // 只显示 L0-L3 层
for level := range 7 { levels := make([]LevelInfo, 0, 4)
// 只调用一次 GetLevel避免重复复制文件列表 for level := range 4 {
files := version.GetLevel(level) files := version.GetLevel(level)
totalSize := int64(0) totalSize := int64(0)
@@ -236,11 +249,8 @@ func (ui *WebUI) handleTableManifest(w http.ResponseWriter, r *http.Request, tab
}) })
} }
// 使用已计算的 totalSize 和 fileCount 计算 score避免再次调用 GetLevel
score := 0.0 score := 0.0
if len(files) > 0 && level < 3 { // L3 是最后一层,不需要 compaction if len(files) > 0 && level < 3 {
// 直接计算 score避免调用 picker.GetLevelScore它会再次获取 files
// 使用下一级的大小限制来计算得分(从 Options 配置读取)
nextLevelLimit := compactionMgr.GetLevelSizeLimit(level + 1) nextLevelLimit := compactionMgr.GetLevelSizeLimit(level + 1)
if nextLevelLimit > 0 { if nextLevelLimit > 0 {
score = float64(totalSize) / float64(nextLevelLimit) score = float64(totalSize) / float64(nextLevelLimit)
@@ -320,23 +330,23 @@ func (ui *WebUI) handleTableData(w http.ResponseWriter, r *http.Request, tableNa
return return
} }
// 解析分页参数 // 解析查询参数
pageStr := r.URL.Query().Get("page") limitStr := r.URL.Query().Get("limit")
pageSizeStr := r.URL.Query().Get("pageSize") offsetStr := r.URL.Query().Get("offset")
selectParam := r.URL.Query().Get("select") // 要选择的字段,逗号分隔 selectParam := r.URL.Query().Get("select") // 要选择的字段,逗号分隔
page := 1 limit := 100
pageSize := 20 offset := 0
if pageStr != "" { if limitStr != "" {
if p, err := strconv.Atoi(pageStr); err == nil && p > 0 { if l, err := strconv.Atoi(limitStr); err == nil && l > 0 && l <= 1000 {
page = p limit = l
} }
} }
if pageSizeStr != "" { if offsetStr != "" {
if ps, err := strconv.Atoi(pageSizeStr); err == nil && ps > 0 && ps <= 1000 { if o, err := strconv.Atoi(offsetStr); err == nil && o >= 0 {
pageSize = ps offset = o
} }
} }
@@ -344,19 +354,17 @@ func (ui *WebUI) handleTableData(w http.ResponseWriter, r *http.Request, tableNa
var selectedFields []string var selectedFields []string
if selectParam != "" { if selectParam != "" {
selectedFields = strings.Split(selectParam, ",") selectedFields = strings.Split(selectParam, ",")
// 清理字段名(去除空格)
for i := range selectedFields { for i := range selectedFields {
selectedFields[i] = strings.TrimSpace(selectedFields[i]) selectedFields[i] = strings.TrimSpace(selectedFields[i])
} }
} }
// 获取 schema 用于字段类型判断 // 获取 schema
tableSchema := table.GetSchema() tableSchema := table.GetSchema()
// 使用 Query API 获取数据,如果指定了字段则只查询指定字段(按字段压缩优化) // 使用 Query API 获取数据
queryBuilder := table.Query() queryBuilder := table.Query()
if len(selectedFields) > 0 { if len(selectedFields) > 0 {
// 确保 _seq 和 _time 总是被查询(用于构造响应)
fieldsWithMeta := make([]string, 0, len(selectedFields)+2) fieldsWithMeta := make([]string, 0, len(selectedFields)+2)
hasSeq := false hasSeq := false
hasTime := false hasTime := false
@@ -378,6 +386,7 @@ func (ui *WebUI) handleTableData(w http.ResponseWriter, r *http.Request, tableNa
queryBuilder = queryBuilder.Select(fieldsWithMeta...) queryBuilder = queryBuilder.Select(fieldsWithMeta...)
} }
queryRows, err := queryBuilder.Rows() queryRows, err := queryBuilder.Rows()
if err != nil { if err != nil {
http.Error(w, fmt.Sprintf("Failed to query table: %v", err), http.StatusInternalServerError) http.Error(w, fmt.Sprintf("Failed to query table: %v", err), http.StatusInternalServerError)
@@ -385,26 +394,23 @@ func (ui *WebUI) handleTableData(w http.ResponseWriter, r *http.Request, tableNa
} }
defer queryRows.Close() defer queryRows.Close()
// 计算分页范围 // 收集数据
offset := (page - 1) * pageSize const maxStringLength = 100
data := make([]map[string]any, 0, limit)
currentIndex := 0 currentIndex := 0
// 直接在遍历时进行分页和字段处理
const maxStringLength = 100 // 最大字符串长度
data := make([]map[string]any, 0, pageSize)
totalRows := int64(0) totalRows := int64(0)
for queryRows.Next() { for queryRows.Next() {
totalRows++ totalRows++
// 跳过不在当前页的数据 // 跳过 offset 之前的数据
if currentIndex < offset { if currentIndex < offset {
currentIndex++ currentIndex++
continue continue
} }
// 已经收集够当前页的数据 // 已经收集够数据
if len(data) >= pageSize { if len(data) >= limit {
continue continue
} }
@@ -441,10 +447,9 @@ func (ui *WebUI) handleTableData(w http.ResponseWriter, r *http.Request, tableNa
response := map[string]any{ response := map[string]any{
"data": data, "data": data,
"page": page, "limit": limit,
"pageSize": pageSize, "offset": offset,
"totalRows": totalRows, "totalRows": totalRows,
"totalPages": (totalRows + int64(pageSize) - 1) / int64(pageSize),
} }
w.Header().Set("Content-Type", "application/json") w.Header().Set("Content-Type", "application/json")