package main

import (
	"html/template"
	"net/http"
	"strings"

	"astraltech.xyz/accountmanager/src/logging"
)

type LoginPageData struct {
	IsHiddenClassList string
}

func loginHandler(w http.ResponseWriter, r *http.Request) {
	logging.Info("Handing login page")

	w.Header().Set("Content-Type", "text/html; charset=utf-8")
	tmpl := template.Must(template.ParseFiles("src/pages/login_page.html"))
	if r.Method == http.MethodGet {
		logging.Info("Rending login page")
		tmpl.Execute(w, LoginPageData{IsHiddenClassList: "hidden"})
		return
	}

	if r.Method == http.MethodPost {
		username := r.FormValue("username")
		if strings.Contains(username, "/") {
			tmpl.Execute(w, LoginPageData{IsHiddenClassList: ""})
		}
		password := r.FormValue("password")

		logging.Infof("New Login request for %s\n", username)
		newUserData, err := authenticateUser(username, password)
		userDataMutex.Lock()
		userData[username] = newUserData
		userDataMutex.Unlock()
		if err == ErrPasswordExpired {
			http.Redirect(w, r, "/reset-password?token=this_is_the_only_token_that_works", http.StatusFound)
		} else if err != nil {
			logging.Error(err.Error())
			tmpl.Execute(w, LoginPageData{IsHiddenClassList: ""})
		} else {
			if newUserData.isAuth == true {
				cookie, err := sessionManager.CreateSession(username)
				if err != nil {
					logging.Error(err.Error())
					http.Error(w, "Session error", http.StatusInternalServerError)
					return
				}
				http.SetCookie(w, cookie)
				http.Redirect(w, r, "/profile", http.StatusFound)
			} else {
				tmpl.Execute(w, LoginPageData{IsHiddenClassList: ""})
			}
		}
	}
}