package basic

import (
	"errors"
	"net/http"

	"github.com/gin-gonic/gin"
	"gorm.io/driver/sqlite"
	"gorm.io/gorm"
)

var FileDirPath = "/home/ubuntu/prime_server/files/"

var db *gorm.DB

func DB() *gorm.DB {
	return db
}

var r *gin.Engine

func R() *gin.Engine {
	return r
}

var ErrFriendExist = errors.New("Friend already exists.")
var ErrForbidden = errors.New("Forbidden.")
var ErrApplicationAlreadyReplied = errors.New("Already replied.")

func ErrCode(err error) (code int) {
	switch err {
	case ErrForbidden, ErrApplicationAlreadyReplied:
		code = http.StatusForbidden
	case gorm.ErrRecordNotFound:
		code = http.StatusNotFound
	case ErrFriendExist:
		code = http.StatusConflict
	default:
		code = http.StatusInternalServerError
	}
	return code
}

func init() {
	_db, err := gorm.Open(sqlite.Open("test.db"), &gorm.Config{})
	if err != nil {
		panic("failed to connect database")
	}
	db = _db
	r = gin.Default()
}