package handlers

import (
	"database/sql"
	"net/http"
	"strconv"
	"text/template"

	"synlotto-website/helpers"
	"synlotto-website/storage"
)

func NotificationsHandler(db *sql.DB) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		data := BuildTemplateData(db, w, r)
		context := helpers.TemplateContext(w, r, data)

		tmpl := template.Must(template.New("notifications.html").
			Funcs(helpers.TemplateFuncs()).
			ParseFiles(
				"templates/layout.html",
				"templates/topbar.html",
				"templates/account/notifications/index.html",
			))

		err := tmpl.ExecuteTemplate(w, "layout", context)
		if err != nil {
			http.Error(w, "Error rendering notifications page", http.StatusInternalServerError)
		}
	}
}

func MarkNotificationReadHandler(db *sql.DB) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		notificationIDStr := r.URL.Query().Get("id")
		notificationID, err := strconv.Atoi(notificationIDStr)
		if err != nil {
			http.Error(w, "Invalid notification ID", http.StatusBadRequest)
			return
		}

		session, _ := helpers.GetSession(w, r)
		userID, ok := session.Values["user_id"].(int)
		if !ok {
			http.Error(w, "Unauthorized", http.StatusUnauthorized)
			return
		}

		err = storage.MarkNotificationAsRead(db, userID, notificationID)
		if err != nil {
			http.Error(w, "Failed to update", http.StatusInternalServerError)
			return
		}

		http.Redirect(w, r, "/account/notifications", http.StatusSeeOther)
	}
}