package handler

import (
	"html/template"
	"log/slog"
	"net/http"
	"strconv"
	"time"

	"git.leonardobishop.net/instancer/pkg/session"
)

func GetAuth(tmpl *template.Template) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		tmpl.ExecuteTemplate(w, "auth.html", nil)
	}
}

func PostAuth(tmpl *template.Template, session *session.MemoryStore) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		if err := r.ParseForm(); err != nil {
			tmpl.ExecuteTemplate(w, "f_auth_error.html", struct {
				Message string
			}{
				Message: "Invalid form data",
			})
			return
		}

		team := r.FormValue("team")
		if team == "" {
			tmpl.ExecuteTemplate(w, "f_auth_error.html", struct {
				Message string
			}{
				Message: "No team entered",
			})
			return
		}

		if _, err := strconv.Atoi(team); err != nil {
			tmpl.ExecuteTemplate(w, "f_auth_error.html", struct {
				Message string
			}{
				Message: "Team ID must be number",
			})
			return
		}

		session, err := session.Create(team)
		if err != nil {
			slog.Error("could not create session", "cause", err)
			tmpl.ExecuteTemplate(w, "f_auth_error.html", struct {
				Message string
			}{
				Message: "Could not create session",
			})
			return
		}

		http.SetCookie(w, &http.Cookie{
			Name:  "session",
			Value: session.Token,

			Path:     "/",
			Secure:   true,
			SameSite: http.SameSiteStrictMode,
			HttpOnly: true,
		})
		w.Header().Add("HX-Redirect", "/")
	}
}

func GetLogout(session *session.MemoryStore) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		//TODO expire session here

		http.SetCookie(w, &http.Cookie{
			Name:    "session",
			Value:   "",
			Expires: time.Unix(0, 0),

			Path:     "/",
			Secure:   true,
			SameSite: http.SameSiteStrictMode,
			HttpOnly: true,
		})
		http.Redirect(w, r, "/auth", http.StatusFound)
	}
}