package system

import (
	"time"

	"github.com/jinzhu/gorm"

	liblog "dev.sum7.eu/sum7/warehost/lib/log"
	libpassword "dev.sum7.eu/sum7/warehost/lib/password"
)

// MINPASSWORDLENTH to validate password
const MINPASSWORDLENTH = 3

/*
 * API Model
 */

// RequestLogin for api request to log in
type RequestLogin struct {
	Username   string `json:"username"`
	Password   string `json:"password"`
	Superadmin bool   `json:"superadmin,oemitempty"`
	Active     bool   `json:"active,oemitempty"`
}

// ChangePasswordRequest for api request of a new password
type ChangePasswordRequest struct {
	CurrentPassword string `json:"currentpassword"`
	NewPassword     string `json:"newpassword"`
}

/*
 * Database Model
 */

// Login found
type Login struct {
	ID          int64
	Username    string    `gorm:"type:varchar(255);unique;column:mail" json:"username"`
	Password    string    `gorm:"type:varchar(255);column:password" json:"-"`
	Active      bool      `gorm:"default:false;column:active" json:"active"`
	Code        string    `gorm:"type:varchar(255);column:code" json:"-"`
	Superadmin  bool      `gorm:"default:false;column:superadmin" json:"superadmin"`
	CreateAt    time.Time `sql:"default:current_timestamp" gorm:"column:createat" json:"createat"`
	LastLoginAt time.Time `gorm:"column:lastloginat" json:"lastloginat"`
	Invites     []Invite  `gorm:"foreignkey:Login" json:"invites"`
}

// Invite struct
type Invite struct {
	LoginID   int64 `sql:"type:bigint REFERENCES login(id) ON UPDATE CASCADE ON DELETE CASCADE;column:login;primary_key"`
	Login     Login `gorm:"column:login" json:"login"`
	InvitedID int64 `sql:"type:bigint REFERENCES login(id) ON UPDATE CASCADE ON DELETE CASCADE;column:invited;primary_key"`
	Invited   Login `gorm:"column:invited" json:"invited"`
	Admin     bool  `sql:"default:false" json:"admin"`
}

// GetInvitedby of current login -> Invitor
func (l *Login) GetInvitedby(dbconnection *gorm.DB) (invited Invite) {
	invited = Invite{InvitedID: l.ID}
	dbconnection.Where("invited = ?", invited.InvitedID).First(&invited)
	return
}

// SyncModels to verify the database schema
func SyncModels(dbconnection *gorm.DB) {
	dbconnection.AutoMigrate(&Login{}, &Invite{})
	var result int64
	dbconnection.Model(&Login{}).Count(&result)

	if result <= 0 {
		login := &Login{
			Username:   "root",
			Active:     true,
			Superadmin: true,
			Password:   libpassword.NewHash("root"),
		}

		dbconnection.Create(login)
		liblog.Log.Error("have to create \"login\"")
	} else {
		liblog.Log.Info("Connection to \"login\" works")
	}
}