/*
 * This file is part of laurelin_api
 * Copyright (C) 2023 Jonni Liljamo <jonni@liljamo.com>
 *
 * Licensed under GPL-3.0-only.
 * See LICENSE for licensing information.
 */

package models

import (
	"time"

	"golang.org/x/crypto/bcrypt"
	"gorm.io/gorm"
)

type User struct {
	ID        string         `json:"id" gorm:"primarykey;type:uuid;default:gen_random_uuid()"`
	CreatedAt time.Time      `json:"created_at"`
	UpdatedAt time.Time      `json:"updated_at"`
	DeletedAt gorm.DeletedAt `json:"-" gorm:"index"`
	Username  string         `json:"username" gorm:"unique"`
	Email     string         `json:"-" gorm:"unique"`
	Password  string         `json:"-"`
}

type UserCreateInput struct {
	Username string `json:"username"`
	Email    string `json:"email"`
	Password string `json:"password"`
}

// hash a users password
func (user *User) HashPwd(password string) error {
	hash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
	if err != nil {
		return err
	}
	user.Password = string(hash)
	return nil
}

func (user *User) VerifyPwd(password string) error {
	err := bcrypt.CompareHashAndPassword([]byte(user.Password), []byte(password))
	if err != nil {
		return err
	}
	return nil
}

type UserPub struct {
	ID        string    `json:"id"`
	CreatedAt time.Time `json:"created_at"`
	UpdatedAt time.Time `json:"updated_at"`
	Username  string    `json:"username"`
}

// Convert a user to UserPub, which can be returned safely
func (user *User) ToPub() UserPub {
	return UserPub{
		ID:        user.ID,
		CreatedAt: user.CreatedAt,
		UpdatedAt: user.UpdatedAt,
		Username:  user.Username,
	}
}