package model

import (
	"log"

	"gorm.io/driver/postgres"
	"gorm.io/gorm"
	"gorm.io/gorm/logger"
)

var DB *gorm.DB

func InitDB(dsn string) {
	var err error
	DB, err = gorm.Open(postgres.Open(dsn), &gorm.Config{
		Logger: logger.Default.LogMode(logger.Info),
	})
	if err != nil {
		log.Fatalf("数据库连接失败: %v", err)
	}

	err = DB.AutoMigrate(
		&Tenant{},
		&User{},
		&Channel{},
		&Customer{},
		&Session{},
		&Message{},
		&SessionEvent{},
		&Category{},
		&KnowledgeEntry{},
		&Plan{},
		&OperationLog{},
		&Announcement{},
	)
	if err != nil {
		log.Fatalf("数据库迁移失败: %v", err)
	}

	log.Println("数据库迁移完成")
}