package main

import (
	_ "github.com/mattn/go-sqlite3"
	"github.com/go-xorm/xorm"
	"os"
	"fmt"
	"github.com/go-xorm/core"
	"github.com/davecgh/go-spew/spew"
)

type User struct {
	Id   int64
	Name string  `xorm:"varchar(25) not null unique 'usr_name'"`
}

type Article struct {
	Id   int64
	Title string  `xorm:"varchar(25) not null unique 'art_title'"`
}

func configureOrm(orm *xorm.Engine) {
	// Show SQL statement on standard output
	orm.ShowSQL = true
	// Show debug infomation on standard output
	orm.ShowDebug = true
	// Show error infomation on standard output;
	orm.ShowErr = true
	// Show warnning information on standard output;
	orm.ShowWarn = true
	// TODO Show which info ?
	orm.ShowInfo = true

	f, err := os.Create("sql.log")
	if err != nil {
		println(err.Error())
		return
	}
	orm.Logger = xorm.NewSimpleLogger(f)

	orm.SetMaxIdleConns(1)
	orm.SetMaxOpenConns(10)

	// Set mapper: GonicMapper, SameMapper, SnakeMapper (default).
	orm.SetMapper(core.SnakeMapper{})
}

func addData(orm *xorm.Engine) {
	u1 := new(User)
	u1.Name = "FGM";
	x, err := orm.Insert(u1)
	if err != nil {
		fmt.Println(err)
		os.Exit(3)
	}
	spew.Dump(x, u1)
}

func check(e error) {
	if e != nil {
		panic(e)
	}
}

func main() {
	orm, err := xorm.NewEngine("sqlite3", "./test.db")
	if err != nil {
		panic(err)
		os.Exit(1)
	}
	fmt.Println("ORM loaded")
	configureOrm(orm)

	err = orm.Sync(new(User), new(Article))
	if err != nil {
		panic(err)
		os.Exit(2)
	}
	fmt.Println("ORM synced")

	addData(orm)
	orm.Close()
}