package mysqlx

import (
	"go.uber.org/zap"
	"gorm.io/driver/mysql"
	"gorm.io/gorm"
	"gorm.io/gorm/logger"
	"gorm.io/gorm/schema"
	"moul.io/zapgorm2"
	"time"
)

type Conf struct {
	LogMode               bool
	MaxIdleCon            int64
	MaxOpenCon            int64
	ConnMaxLifeTimeSecond int64
	ConnMaxIdleTimeSecond int64
	Dsn                   string
	Host                  string
}

var openDb *gorm.DB

func Init(conf *Conf, log *zap.Logger) error {
	gConfig := &gorm.Config{
		PrepareStmt: true,
		NamingStrategy: schema.NamingStrategy{
			TablePrefix:   "",
			SingularTable: true,
		},
		DisableForeignKeyConstraintWhenMigrating: true,
	}
	dbLogger := zapgorm2.New(log).LogMode(logger.Info)
	if !conf.LogMode {
		dbLogger = dbLogger.LogMode(logger.Silent)
	}
	gConfig.Logger = dbLogger
	db, err := gorm.Open(mysql.Open(conf.Dsn), gConfig)
	if err != nil {
		return err
	}
	sqlDb, err := db.DB()
	if err != nil {
		return err
	}
	sqlDb.SetMaxIdleConns(int(conf.MaxIdleCon))
	sqlDb.SetMaxOpenConns(int(conf.MaxOpenCon))
	sqlDb.SetConnMaxLifetime(time.Duration(conf.ConnMaxLifeTimeSecond) * time.Second)
	sqlDb.SetConnMaxIdleTime(time.Duration(conf.ConnMaxIdleTimeSecond) * time.Second)
	openDb = db
	return nil
}

func GetDB() *gorm.DB {
	return openDb
}