package bootstrap

import (
	"context"
	"log/slog"

	"code.tczkiot.com/wlw/ai-agent/internal/ai/rag/vectordb"
	"code.tczkiot.com/wlw/ai-agent/internal/pkg/config"
	"code.tczkiot.com/wlw/ai-agent/internal/pkg/i18nx"
	"code.tczkiot.com/wlw/ai-agent/internal/pkg/logx"
	"code.tczkiot.com/wlw/ai-agent/internal/services/cronx"
	_ "code.tczkiot.com/wlw/ai-agent/internal/services/event_handlers"
	"code.tczkiot.com/wlw/ai-agent/internal/wxwork"

	"gorm.io/gorm"
)

type LoadSettingsFunc func(ctx context.Context, prefix string) (map[string]string, error)

// InitModule initializes AI Agent with infrastructure owned by the host
// application. It never opens a database connection or reads a private
// configuration table, and it never creates or migrates database tables.
func InitModule(database *gorm.DB, tablePrefix string, loadSettings LoadSettingsFunc) error {
	settings, err := loadSettings(context.Background(), config.SettingsPrefix)
	if err != nil {
		return err
	}
	cfg, err := config.FromSettings(settings)
	if err != nil {
		return err
	}
	config.SetCurrent(cfg)
	i18nx.SetDefaultLocale(cfg.LanguageOrDefault())

	if err := UseDatabase(database, tablePrefix); err != nil {
		return err
	}
	if err := vectordb.Init(&cfg.VectorDB); err != nil {
		slog.Error("init vector db failed", "error", err)
		return err
	}
	cronx.Init()
	wxwork.SetSettingsLoader(wxwork.SettingsLoader(loadSettings))
	wxwork.Init()
	return nil
}

func Init(configPath string) error {
	cfg, err := config.Load(configPath)
	if err != nil {
		slog.Error("init config failed", "error", err)
		return err
	}
	config.SetCurrent(cfg)
	i18nx.SetDefaultLocale(cfg.LanguageOrDefault())

	logx.Init(logx.Config{
		Level:     cfg.Logger.Level,
		Format:    cfg.Logger.Format,
		AddSource: cfg.Logger.AddSource,
	})

	if _, err := InitDB(cfg.DB); err != nil {
		slog.Error("init db failed", "error", err)
		return err
	}
	if err := vectordb.Init(&cfg.VectorDB); err != nil {
		slog.Error("init vector db failed", "error", err)
		return err
	}

	// 启动任务调度器
	cronx.Init()

	wxwork.SetSettingsLoader(nil)
	wxwork.Init()
	return nil
}