<?php

namespace App\Filament\Widgets;

use Filament\Support\Enums\IconPosition;
use Filament\Widgets\StatsOverviewWidget as BaseWidget;
use Filament\Widgets\StatsOverviewWidget\Stat;
use App\Models\Announcement;
use Illuminate\Support\HtmlString;
use Illuminate\Support\Facades\Session;
use Illuminate\Support\Str;


class AnnouncementOverview extends BaseWidget
{
    protected $currentAnnouncementId = null;

    //refresh delay of widget
    protected static ?string $pollingInterval = '5s';


    protected function getStats(): array {

        $announcements = Announcement::whereNull('deleted_at')->orderBy('id', 'asc')->get();
        $announcementCount = $announcements->count();

        if ($announcementCount === 0) {
            return [];
        }


        /********************************************
         * current announcement ID from the session
         *
         * @param Form $form
         * @return Form
         */
        $this->currentAnnouncementId = Session::get('currentAnnouncementId', $announcements->first()->id);

        $currentAnnouncement = $announcements->where('id', $this->currentAnnouncementId)->first();


        /********************************************
         * shorten the 'announcement_description'
         *
         * @param Form $form
         * @return Form
         */
        $shortDescription = Str::limit($currentAnnouncement->announcement_description, 70, ' ....');


        /********************************************
         * get user who created the announcement
         *
         * connected on Announcement.php 'public function currentUserName()'
         * @param Form $form
         * @return Form
         */
        $user = $currentAnnouncement->currentUserName->name;


        /********************************************
         * WIDGET
         * @param Form $form
         * @return Form
         */
        $stats = [
            Stat::make("Announcement by $user", $currentAnnouncement->announcement_title)
                ->description(new HtmlString("<div>{$shortDescription}</div>"))
                ->descriptionIcon('heroicon-m-megaphone', IconPosition::After)
                ->url(\App\Filament\Resources\AnnouncementResource::getUrl()),
        ];



        /********************************************
         * Get the next announcement ID and update the session
         * @param Form $form
         * @return Form
         */
        $nextAnnouncementId = $announcements->where('id', '>', $this->currentAnnouncementId)->min('id');
        $nextAnnouncementId = $nextAnnouncementId ?: $announcements->first()->id;
        Session::put('currentAnnouncementId', $nextAnnouncementId);

        return $stats;
    }


}