package user

import (
	"github.com/gorilla/sessions"
	. "github.com/labstack/echo/v4"
	"net/http"
	"os"
	"todo/crud"
	. "todo/html_components"
)

// GENERATED FILE
// DO NOT EDIT

const cookieMaxAge = 60 * 60 * 24

type UserLogin struct {
	e           *Echo
	repo        *UserRepository
	cookieStore *sessions.CookieStore
	html        *GoHtmlHandler
}

func NewUserLogin(e *Echo, repo *UserRepository, html *GoHtmlHandler) *UserLogin {
	store := sessions.NewCookieStore([]byte(os.Getenv("SESSION_SECRET")))
	isLocal := os.Getenv("IS_LOCAL") == "true"
	if isLocal {
		store.Options.Secure = false
		store.Options.SameSite = http.SameSiteLaxMode
	}
	store.Options.HttpOnly = true
	store.MaxAge(cookieMaxAge)
	return &UserLogin{e: e, repo: repo, cookieStore: store, html: html}
}

func (u *UserLogin) AddLoginRoute() {
	u.e.GET("/login", func(c Context) error {
		return u.html.RenderPage(c, "login", EmailLogin{})
	})
	u.e.POST("/login", func(c Context) error {
		email := c.FormValue("email")
		password := c.FormValue("password")
		crud.Debug("login request received for email: ", email)

		success, userId, err := u.repo.VerifyPassword(email, password)
		if err != nil {
			crud.Error("error while verifying password: ", err)
			return u.returnLoginFailed(c)
		}
		crud.Debug("login success: ", success)
		if !success {
			return u.returnLoginFailed(c)
		}
		err = u.createSession(c, email, userId)
		if err != nil {
			crud.Error("error while creating session: ", err)
			return u.returnLoginFailed(c)
		}
		c.Response().Header().Set("HX-Redirect", "/")
		return nil
	})
}

func (u *UserLogin) createSession(c Context, email string, userId int) error {
	s, err := u.cookieStore.New(c.Request(), "session")
	if err != nil {
		return err
	}
	s.Values["email"] = email
	s.Values["userId"] = userId
	return s.Save(c.Request(), c.Response())
}

func (u *UserLogin) returnLoginFailed(c Context) error {
	return u.html.RenderComponent(c, "emailLogin", EmailLogin{
		ShowError: true,
		Error:     "Could not authenticate the user",
	})
}

func (u *UserLogin) IsSessionAuthenticated(c Context) bool {
	session, err := u.cookieStore.Get(c.Request(), "session")
	if err != nil {
		return false
	}
	email, ok := session.Values["email"].(string)
	if !ok {
		return false
	}
	id, ok := session.Values["userId"].(int)
	if !ok {
		return false
	}
	c.Set("user", email)
	c.Set("userId", id)
	return id > -1
}