package db

import (
	"database/sql"
	_ "github.com/go-sql-driver/mysql" //必须导入mysql驱动，否则会panic
	"xorm.io/xorm"
)

var Db *xorm.Engine

/********************************************* 公用方法 *********************************************/

// 数据批量插入
func DbInsertBatch(Db *xorm.Engine, m ...interface{}) error {
	if len(m) == 0 {
		return nil
	}
	id, err := Db.Insert(m...)
	if id == 0 || err != nil {
		return err
	}
	return nil
}

// QueryNativeString 查询原生sql
func QueryNativeString(Db *xorm.Engine, sql string, args ...interface{}) ([]map[string]string, error) {
	results, err := Db.SQL(sql, args...).QueryString()
	return results, err
}

// UpdateComm common update
func UpdateComm(Db *xorm.Engine, id interface{}, model interface{}) (int64, error) {
	row, err := Db.ID(id).Update(model)
	return row, err
}

// InsertComm common insert
func InsertComm(Db *xorm.Engine, model interface{}) (int64, error) {
	row, err := Db.InsertOne(model)
	return row, err
}

// GetComm
// payload *model
// return *model,has,err
func GetComm(Db *xorm.Engine, model interface{}) (interface{}, bool, error) {
	has, err := Db.Get(model)
	if err != nil {
		return nil, false, err
	}
	return model, has, nil
}

// InsertCommWithSession common insert
func InsertCommWithSession(session *xorm.Session, model interface{}) (int64, error) {
	row, err := session.InsertOne(model)
	return row, err
}

// ExecuteOriginalSql 执行原生sql
func ExecuteOriginalSql(session *xorm.Session, sql string) (sql.Result, error) {
	result, err := session.Exec(sql)
	if err != nil {
		return nil, err
	}
	return result, nil
}