package controllers

import (
	"errors"
	"fmt"

	"git.readonly.ch/bouzoure/popvaud-people/helpers"
	"git.readonly.ch/bouzoure/popvaud-people/models"
	"github.com/gofiber/fiber/v2"
	"gorm.io/gorm"
)

func LoginForm(c *fiber.Ctx) error {
	sess, err := helpers.GetSessionStore(c)
	if err != nil {
		return err
	}

	userid := sess.Get("userid")
	if userid != nil {
		return fiber.NewError(fiber.StatusForbidden, "Forbidden")
	}

	db, err := helpers.GetDatabase()
	if err != nil {
		return err
	}

	var loginError string
	if c.Method() == "POST" {
		email := c.FormValue("email")
		password := c.FormValue("password")

		var user models.User
		result := db.First(&user, "LOWER(email) = LOWER(?)", email)

		if result.Error != nil && !errors.Is(result.Error, gorm.ErrRecordNotFound) {
			return err
		}

		if helpers.CheckPasswordHash(password, user.Password) {
			redirectId := c.Query("redirect")
			redirectUrl := "/"

			if len(redirectId) > 0 {
				redirectKey := fmt.Sprintf("redirect-%s", redirectId)
				redirectVal := sess.Get(redirectKey)

				if redirectVal != nil {
					redirectUrl = redirectVal.(string)
				}
			}

			sess.Set("userid", user.ID)
			sess.Save()

			return c.Redirect(redirectUrl)
		} else {
			loginError = "Email ou mot de passe incorrect"
		}
	}

	return c.Render("login", fiber.Map{
		"PageTitle":  "Connexion",
		"LoginError": loginError,
	})
}