package handlers

import (
	"apjournal/internal/models"
	"apjournal/pkg/utils"
	"encoding/json"
	"html/template"
	"net/http"
	"strings"
	"time"
)

func abortWithError(w http.ResponseWriter, msg string) {
	tmpl := template.Must(template.ParseGlob("components/*.html"))
	tmpl.ExecuteTemplate(w, "error", msg)
}

func (h *Handlers) HandleLogin(w http.ResponseWriter, r *http.Request) {
	r.ParseForm()
	username := r.PostFormValue("username")
	if username == "" {
		msg := "username not provided"
		h.log.Error(msg)
		abortWithError(w, msg)
		return
	}
	password := r.PostFormValue("password")
	if password == "" {
		msg := "password not provided"
		h.log.Error(msg)
		abortWithError(w, msg)
		return
	}
	cleanName := utils.RemoveSpacesFromStr(username)
	cookie, err := h.makeCookie(cleanName, r.RemoteAddr)
	if err != nil {
		h.log.Error("failed to login", "error", err)
		abortWithError(w, err.Error())
		return
	}
	http.SetCookie(w, cookie)
	// http.Redirect(w, r, "/", 302)
	tmpl, err := template.ParseGlob("components/*.html")
	if err != nil {
		panic(err)
	}
	userScore, err := h.repo.DBUserScoreGet(cleanName)
	if err != nil {
		h.log.Warn("got db err", "err", err)
		if err := h.repo.DBUserScoreCreate(&us); err != nil {
			panic(err)
		}
		tmpl.ExecuteTemplate(w, "main", nil)
		return
	}
	userScore.Actions, err = h.repo.DBActionList(cleanName)
	if err != nil {
		panic(err)
	}
	tmpl.ExecuteTemplate(w, "main", userScore)
}

func (h *Handlers) makeCookie(username string, remote string) (*http.Cookie, error) {
	// Create a new random session token
	// sessionToken := xid.New().String()
	sessionToken := "token"
	expiresAt := time.Now().Add(time.Duration(h.cfg.SessionLifetime) * time.Second)
	// Set the token in the session map, along with the session information
	session := &models.Session{
		Username: username,
		Expiry:   expiresAt,
	}
	// TODO: write session to db
	cookie := &http.Cookie{
		Name:     "session_token",
		Value:    sessionToken,
		Secure:   true,
		HttpOnly: true,
		SameSite: http.SameSiteNoneMode,
		Domain:   h.cfg.ServerConfig.Host,
	}
	h.log.Info("check remote addr for cookie set",
		"remote", remote, "session", session)
	if strings.Contains(remote, "192.168.0") {
		// no idea what is going on
		cookie.Domain = "192.168.0.101"
	}
	// set ctx?
	// c.Set("username", username)
	return cookie, nil
}

func (h *Handlers) cacheGetSession(key string) (*models.Session, error) {
	userSessionB, err := h.mc.Get(key)
	if err != nil {
		return nil, err
	}
	var us *models.Session
	if err := json.Unmarshal(userSessionB, &us); err != nil {
		return nil, err
	}
	return us, nil
}

func (h *Handlers) cacheSetSession(key string, session *models.Session) error {
	sesb, err := json.Marshal(session)
	if err != nil {
		return err
	}
	h.mc.Set(key, sesb)
	// expire in 10 min
	h.mc.Expire(key, 10*60)
	return nil
}