package dao

import (
	"StuAcaWorksAI/proto"
	"fmt"
	"gorm.io/driver/mysql"
	"gorm.io/driver/postgres"
	"gorm.io/gorm"
)

var DB *gorm.DB

func Init() error {
	var db *gorm.DB
	var err error
	var dsn string
	if proto.Config.DB == 0 {
		dsn = proto.Config.MYSQL_DSN
		db, err = gorm.Open(mysql.Open(dsn), &gorm.Config{})
	} else if proto.Config.DB == 1 {
		dsn = proto.Config.PG_DSN
		db, err = gorm.Open(postgres.Open(dsn), &gorm.Config{})
	}

	if err != nil {
		panic("failed to connect database")
		return err
	}
	err = db.AutoMigrate(&User{})
	if err != nil {
		fmt.Println("user table:", err)
		return err
	} // 自动迁移，创建表，如果表已经存在，会自动更新表结构，不会删除表,只会创建不存在的表
	err = db.AutoMigrate(&File{})
	if err != nil {
		fmt.Println("file table:", err)
	}

	err = db.AutoMigrate(&File{})
	if err != nil {
		fmt.Println("file table:", err)
		return err
	}

	err = db.AutoMigrate(&ConfigFile{})
	if err != nil {
		fmt.Println("config file table:", err)
		return err
	}

	err = db.AutoMigrate(&FileAuth{})
	if err != nil {
		fmt.Println("file auth table:", err)
		return err
	}

	err = db.AutoMigrate(&Model{})
	if err != nil {
		fmt.Println("model table:", err)
		return err
	}

	err = db.AutoMigrate(&Session{})
	if err != nil {
		fmt.Println("session table:", err)
		return err
	}

	err = db.AutoMigrate(&Message{})
	if err != nil {
		fmt.Println("message table:", err)
		return err
	}
	DB = db
	return err
}

func Close() {
	sqlDB, err := DB.DB()
	if err != nil {
		panic("failed to connect database")
	}
	sqlDB.Close()
}