package main

import (
	"context"
	"encoding/json"
	"net/http"
	"text/template"

	"astraltech.xyz/calendar/v2/auth"
)

type CalendarData struct {
	DisplayName string
}

func ParseOAuthLogin(w http.ResponseWriter, r *http.Request) CalendarData {
	token, err := auth.TestTokenStore.Load()
	if err != nil {
		http.Error(w, "Not authenticated", http.StatusUnauthorized)
		return CalendarData{}
	}

	client := auth.DefaultProvider.Config.Client(context.Background(), token)

	resp, err := client.Get(auth.DefaultProvider.Provider.UserInfoEndpoint())
	if err != nil {
		http.Error(w, "Failed to fetch user: "+err.Error(), http.StatusInternalServerError)
		return CalendarData{}
	}
	defer resp.Body.Close()

	var usersInfo auth.UserInfo
	if err := json.NewDecoder(resp.Body).Decode(&usersInfo); err != nil {
		http.Error(w, "Failed to decode response", http.StatusInternalServerError)
		return CalendarData{}
	}
	return CalendarData{
		DisplayName: usersInfo.Name,
	}
}

func HandleCalandarEndpoint(w http.ResponseWriter, r *http.Request) {
	var OauthLogin = true
	var data CalendarData
	if OauthLogin {
		data = ParseOAuthLogin(w, r)
	}

	w.Header().Set("Content-Type", "text/html; charset=utf-8")
	tmpl := template.Must(template.ParseFiles("main/pages/calendar.html"))
	tmpl.Execute(w, data)
}