package database

import (
	"fmt"
	"log"
	"os"
	"time"

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

func InitDatabase(opt *DBOption) (*gorm.DB, error) {
	dsn := fmt.Sprintf("host=%s user=%s password=%s dbname=%s port=%s sslmode=disable TimeZone=Asia/Shanghai", opt.Host, opt.User, opt.Password, opt.DBName, opt.Port)
	return gorm.Open(postgres.Open(dsn), &gorm.Config{})
}

func InitDefaultDatabase() (*gorm.DB, error) {
	path := os.Getenv(ConfigPathEnvKey)
	if path != "" {
		path = DefaultConfigPath
	}
	cfg, err := LoadDBConfig(path)
	if err != nil {
		return nil, fmt.Errorf("获取数据库配置失败：%v", err)
	}
	db, err := InitDatabase(cfg)
	if err != nil {
		return nil, fmt.Errorf("初始化数据库失败：%v", err)
	}
	db.Logger = logger.New(
		log.New(os.Stdout, "\r\n", log.LstdFlags),
		logger.Config{
			SlowThreshold: time.Second,
			LogLevel:      logger.Warn,
			Colorful:      true,
		},
	)
	return db, nil
}