mlogclub
640 lines
18 KiB
TypeScript
640 lines
18 KiB
TypeScript
"use client"
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import { create } from "zustand"
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import {
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closeImConversation,
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createOrMatchImConversation,
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ensureCustomerSession,
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fetchImMessages,
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fetchImWidgetConfig,
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markImMessageRead,
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sendImMessage,
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uploadImAttachment,
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uploadImImage,
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applyCustomerSessionRefresh,
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type ImAsset,
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type ImConversation,
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type ImMessage,
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type ImWidgetConfig,
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} from "@/lib/api/im"
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import {
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createImRealtimeConnection,
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type ImRealtimeEnvelope,
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} from "@/lib/im-realtime"
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import {
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cursorFromLoadedImMessages,
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hasMoreAfterLatestImMessageMerge,
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mergeImMessagesByIdAsc,
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parseImMessageCursorId,
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} from "@/lib/im-message-merge"
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import {
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markMessagesReadToMessageId,
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normalizeRealtimeMessage,
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patchConversation,
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patchConversationWithMessage,
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} from "@/lib/im-realtime-state"
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import { summarizeIMMessage } from "@/lib/im-message"
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import { createRealtimeConnectionManager } from "@/lib/realtime-connection"
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import { generateUUID } from "@/lib/utils"
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import {
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readSupportChatRuntimeConfig,
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setSupportChatRuntimeConfig,
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} from "@/lib/sdk/runtime-config"
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import { translateCurrentMessage } from "@/i18n/messages"
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type ChatStatus = "connecting" | "connected" | "disconnected"
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const DEFAULT_PAGE_LIMIT = 50
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function getNotificationBody(message: ImMessage): string {
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return summarizeIMMessage(message)
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}
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function showNotification(title: string, body: string, onClick?: () => void) {
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if (typeof window === "undefined" || !("Notification" in window)) {
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return
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}
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const create = () => {
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const notification = new Notification(title, { body })
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notification.onclick = () => {
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window.focus()
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onClick?.()
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notification.close()
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}
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}
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if (Notification.permission === "granted") {
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create()
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return
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}
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if (Notification.permission === "default") {
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void Notification.requestPermission().then((permission) => {
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if (permission === "granted") {
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create()
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}
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})
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}
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}
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function ensureMessageList(value: ImMessage[] | null | undefined): ImMessage[] {
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return Array.isArray(value) ? value : []
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}
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function markConversationReadMessages(
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messages: ImMessage[],
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payload: ImRealtimeEnvelope["data"] | ImRealtimeEnvelope["payload"]
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) {
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let next = messages
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if ((payload?.agentLastReadMessageId ?? 0) > 0) {
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next = markMessagesReadToMessageId(
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next,
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payload?.agentLastReadMessageId ?? 0,
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"agent",
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payload?.agentLastReadAt
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)
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}
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if ((payload?.customerLastReadMessageId ?? 0) > 0) {
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next = markMessagesReadToMessageId(
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next,
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payload?.customerLastReadMessageId ?? 0,
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"customer",
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payload?.customerLastReadAt
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)
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}
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return next
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}
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export type SupportChatStore = {
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title: string
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subtitle: string
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themeColor: string
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conversation: ImConversation | null
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messages: ImMessage[]
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messagesCursor: string
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messagesHasMore: boolean
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messagesLoadingMore: boolean
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initialized: boolean
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status: ChatStatus
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error: string
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sending: boolean
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uploadingAsset: boolean
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closingConversation: boolean
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isOpen: boolean
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isVisible: boolean
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socket: WebSocket | null
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readingMessageId: number
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setIsOpen: (isOpen: boolean) => void
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setIsVisible: (isVisible: boolean) => void
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bootstrap: () => void
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disconnectSocket: () => void
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refreshMessages: () => Promise<void>
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syncLatestMessages: () => Promise<void>
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loadOlderMessages: () => Promise<void>
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markConversationRead: () => Promise<void>
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handleSendMessage: (content: string) => Promise<void>
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sendMessage: (content: string) => Promise<void>
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uploadMessageImage: (file: File) => Promise<ImAsset | null>
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sendAttachment: (file: File) => Promise<void>
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closeConversation: () => Promise<void>
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retry: () => Promise<void>
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}
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let bootstrapToken = 0
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function t(key: string) {
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return translateCurrentMessage(key)
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}
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export const useSupportChatStore = create<SupportChatStore>((set, get) => {
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const realtime = createRealtimeConnectionManager({
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createSocket: createImRealtimeConnection,
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canReconnect: () => Boolean(get().isOpen && get().conversation?.id),
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onStatusChange: (status) => {
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if (get().isOpen || status === "disconnected") {
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set({ status })
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}
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},
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onSocketChange: (socket) => {
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set({ socket })
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},
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onMessage: (messageEvent) => {
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let event: ImRealtimeEnvelope
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try {
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event = JSON.parse(messageEvent.data) as ImRealtimeEnvelope
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} catch {
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return
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}
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const payload = event.data ?? event.payload
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if (event.type === "customer_session.refresh") {
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applyCustomerSessionRefresh(payload)
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return
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}
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const conversationId = get().conversation?.id
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if (!conversationId) {
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return
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}
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if (event.type === "resyncRequired") {
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void get().refreshMessages()
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return
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}
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if (payload?.conversationId !== conversationId) {
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return
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}
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if (event.type === "message.created") {
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const message = normalizeRealtimeMessage<ImMessage>(payload)
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if (!message) {
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void get().syncLatestMessages()
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return
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}
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set((state) => ({
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messages: mergeImMessagesByIdAsc(state.messages, [message]),
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conversation: patchConversationWithMessage(state.conversation, message),
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}))
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if (
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message.senderType !== "customer" &&
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typeof document !== "undefined" &&
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document.visibilityState !== "visible"
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) {
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const state = get()
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showNotification(t("supportChat.newMessage"), getNotificationBody(message), () => {
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state.setIsOpen(true)
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state.setIsVisible(true)
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})
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}
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return
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}
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if (event.type?.startsWith("conversation.")) {
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set((state) => ({
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conversation: patchConversation(state.conversation, payload),
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messages: markConversationReadMessages(state.messages, payload),
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}))
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}
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},
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})
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const closeSocket = (options?: { reconnect?: boolean }) => {
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realtime.disconnect({
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reconnect: options?.reconnect ?? false,
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updateStatus: true,
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})
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}
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const connectSocket = () => {
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if (!get().conversation?.id) {
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return
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}
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realtime.connect()
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}
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return {
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title: t("supportChat.title"),
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subtitle: "",
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themeColor: "#2563eb",
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conversation: null,
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messages: [],
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messagesCursor: "",
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messagesHasMore: false,
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messagesLoadingMore: false,
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initialized: false,
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status: "connecting",
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error: "",
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sending: false,
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uploadingAsset: false,
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closingConversation: false,
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isOpen: typeof window !== "undefined" ? window.self === window.top : false,
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isVisible:
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typeof window !== "undefined" ? window.self === window.top : false,
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socket: null,
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readingMessageId: 0,
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setIsOpen: (isOpen: boolean) => {
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set({ isOpen })
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},
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setIsVisible: (isVisible: boolean) => {
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set({ isVisible })
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},
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bootstrap: () => {
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const token = ++bootstrapToken
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if (!get().isOpen) {
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closeSocket({ reconnect: false })
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set({ status: "disconnected" })
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return
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}
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const activateChat = async () => {
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try {
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set({ error: "", status: "connecting" })
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const widgetConfig: ImWidgetConfig = await fetchImWidgetConfig().catch(
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() => ({})
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)
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if (bootstrapToken !== token || !get().isOpen) {
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return
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}
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if (widgetConfig.channelId) {
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setSupportChatRuntimeConfig({
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...readSupportChatRuntimeConfig(),
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channelId:
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widgetConfig.channelId || readSupportChatRuntimeConfig().channelId,
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})
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}
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set({
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title: widgetConfig.title || t("supportChat.title"),
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subtitle: widgetConfig.subtitle || "",
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themeColor: widgetConfig.themeColor || "#2563eb",
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})
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await ensureCustomerSession()
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if (bootstrapToken !== token || !get().isOpen) {
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return
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}
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let currentConversation = get().conversation
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if (!get().initialized || !currentConversation) {
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currentConversation = await createOrMatchImConversation()
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if (bootstrapToken !== token || !get().isOpen) {
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return
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}
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set({ initialized: true, conversation: currentConversation })
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}
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await get().refreshMessages()
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if (bootstrapToken !== token || !get().isOpen) {
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return
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}
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connectSocket()
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} catch (error) {
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if (bootstrapToken !== token || !get().isOpen) {
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return
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}
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set({
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status: "disconnected",
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error: error instanceof Error ? error.message : t("supportChat.initFailed"),
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})
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}
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}
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void activateChat()
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},
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disconnectSocket: () => {
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closeSocket({ reconnect: false })
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},
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refreshMessages: async () => {
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const conversationId = get().conversation?.id
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if (!conversationId) {
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return
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}
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try {
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const page = await fetchImMessages({
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conversationId,
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limit: DEFAULT_PAGE_LIMIT,
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})
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const results = ensureMessageList(page.results)
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set({
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messages: results,
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messagesCursor: cursorFromLoadedImMessages(results) || page.cursor || "",
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messagesHasMore: Boolean(page.hasMore) || results.length >= DEFAULT_PAGE_LIMIT,
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})
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} catch (error) {
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set({
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error: error instanceof Error ? error.message : t("supportChat.loadMessagesFailed"),
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})
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throw error
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}
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},
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syncLatestMessages: async () => {
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const conversationId = get().conversation?.id
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if (!conversationId) {
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return
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}
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try {
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const page = await fetchImMessages({
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conversationId,
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limit: DEFAULT_PAGE_LIMIT,
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})
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const batch = ensureMessageList(page.results)
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if (batch.length === 0) {
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return
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}
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set((state) => {
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const merged = mergeImMessagesByIdAsc(state.messages, batch)
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return {
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messages: merged,
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messagesCursor: cursorFromLoadedImMessages(merged) || page.cursor || "",
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messagesHasMore: hasMoreAfterLatestImMessageMerge({
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previousMessages: state.messages,
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previousHasMore: state.messagesHasMore,
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merged,
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apiHasMore: Boolean(page.hasMore) || batch.length >= DEFAULT_PAGE_LIMIT,
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}),
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}
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})
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} catch (error) {
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set({
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error: error instanceof Error ? error.message : t("supportChat.syncMessagesFailed"),
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})
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}
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},
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loadOlderMessages: async () => {
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const conversationId = get().conversation?.id
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if (
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!conversationId ||
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get().messagesLoadingMore ||
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!get().messagesHasMore
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) {
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return
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}
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const cursorId = parseImMessageCursorId(get().messagesCursor)
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if (cursorId <= 0) {
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return
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}
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set({ messagesLoadingMore: true })
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try {
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const page = await fetchImMessages({
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conversationId,
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cursor: cursorId,
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limit: DEFAULT_PAGE_LIMIT,
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})
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const results = ensureMessageList(page.results)
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set((state) => {
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const merged = mergeImMessagesByIdAsc(
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ensureMessageList(state.messages),
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results
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)
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return {
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messages: merged,
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messagesCursor: cursorFromLoadedImMessages(merged) || page.cursor || "",
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messagesHasMore: Boolean(page.hasMore) || results.length >= DEFAULT_PAGE_LIMIT,
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messagesLoadingMore: false,
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}
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})
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} catch (error) {
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set({
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messagesLoadingMore: false,
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error: error instanceof Error ? error.message : t("supportChat.loadHistoryFailed"),
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})
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throw error
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}
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},
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markConversationRead: async () => {
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const state = get()
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const conversation = state.conversation
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const lastMessage = state.messages.at(-1)
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if (!conversation?.id || !lastMessage) {
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return
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}
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if (
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conversation.customerUnreadCount <= 0 &&
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conversation.customerLastReadMessageId >= lastMessage.id
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) {
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return
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}
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if (state.readingMessageId === lastMessage.id) {
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return
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}
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set({ readingMessageId: lastMessage.id })
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try {
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await markImMessageRead(conversation.id, lastMessage.id)
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set((current) => ({
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readingMessageId: 0,
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messages: current.messages.map((item) => {
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if (item.id > lastMessage.id) {
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return item
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}
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return item.customerRead ? item : { ...item, customerRead: true }
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}),
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conversation: current.conversation
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? {
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...current.conversation,
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customerUnreadCount: 0,
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customerLastReadMessageId: lastMessage.id,
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}
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: null,
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}))
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} catch (error) {
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set({ readingMessageId: 0 })
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throw error
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}
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},
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handleSendMessage: async (content: string) => {
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const conversationId = get().conversation?.id
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if (!conversationId) {
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return
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}
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set({ error: "", sending: true })
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try {
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const nextMessage = await sendImMessage({
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conversationId,
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messageType: "html",
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content,
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clientMsgId: `support_chat_html_${generateUUID()}`,
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})
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set((state) => ({
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sending: false,
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messages: state.messages.some((message) => message.id === nextMessage.id)
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? state.messages.map((message) =>
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message.id === nextMessage.id ? nextMessage : message
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)
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: [...state.messages, nextMessage],
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conversation: state.conversation
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? {
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...state.conversation,
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customerLastReadMessageId: nextMessage.id,
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customerUnreadCount: 0,
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lastMessageAt: nextMessage.sentAt,
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lastMessageSummary: summarizeIMMessage(nextMessage),
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}
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: null,
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}))
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} catch (error) {
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set({
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sending: false,
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error: error instanceof Error ? error.message : t("supportChat.sendMessageFailed"),
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})
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throw error
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}
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},
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sendMessage: async (content: string) => {
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return get().handleSendMessage(content)
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},
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uploadMessageImage: async (file: File) => {
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const conversationId = get().conversation?.id
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if (!conversationId) {
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return null
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}
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set({ error: "", uploadingAsset: true })
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try {
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return await uploadImImage(conversationId, file)
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} catch (error) {
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set({
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error: error instanceof Error ? error.message : t("supportChat.uploadImageFailed"),
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})
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return null
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} finally {
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set({ uploadingAsset: false })
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}
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},
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sendAttachment: async (file: File) => {
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const conversationId = get().conversation?.id
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if (!conversationId) {
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return
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}
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set({ error: "", uploadingAsset: true })
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try {
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const asset = await uploadImAttachment(conversationId, file)
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const nextMessage = await sendImMessage({
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conversationId,
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messageType: "attachment",
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content: asset.filename,
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payload: JSON.stringify({ assetId: asset.assetId }),
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clientMsgId: `support_chat_attachment_${generateUUID()}`,
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})
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set((state) => ({
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uploadingAsset: false,
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messages: state.messages.some((message) => message.id === nextMessage.id)
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? state.messages.map((message) =>
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message.id === nextMessage.id ? nextMessage : message
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)
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: [...state.messages, nextMessage],
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conversation: state.conversation
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? {
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...state.conversation,
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customerLastReadMessageId: nextMessage.id,
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customerUnreadCount: 0,
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lastMessageAt: nextMessage.sentAt,
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lastMessageSummary: summarizeIMMessage(nextMessage),
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}
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: null,
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}))
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} catch (error) {
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set({
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uploadingAsset: false,
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error: error instanceof Error ? error.message : t("supportChat.sendAttachmentFailed"),
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})
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throw error
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}
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},
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closeConversation: async () => {
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const conversationId = get().conversation?.id
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if (!conversationId) {
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return
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}
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set({ error: "", closingConversation: true })
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try {
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await closeImConversation(conversationId)
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closeSocket({ reconnect: false })
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set((state) => ({
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closingConversation: false,
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status: "disconnected",
|
|
conversation: state.conversation
|
|
? {
|
|
...state.conversation,
|
|
status: 2,
|
|
}
|
|
: null,
|
|
}))
|
|
} catch (error) {
|
|
set({
|
|
closingConversation: false,
|
|
error: error instanceof Error ? error.message : t("supportChat.closeConversationFailed"),
|
|
})
|
|
throw error
|
|
}
|
|
},
|
|
|
|
retry: async () => {
|
|
if (!get().conversation?.id) {
|
|
return
|
|
}
|
|
|
|
set({ error: "", status: "connecting" })
|
|
try {
|
|
await get().refreshMessages()
|
|
if (get().isOpen) {
|
|
connectSocket()
|
|
}
|
|
} catch (error) {
|
|
set({
|
|
status: "disconnected",
|
|
error: error instanceof Error ? error.message : t("supportChat.refreshFailed"),
|
|
})
|
|
}
|
|
},
|
|
}
|
|
})
|