<?php
/*
 * Copyright (c) 2025, Антон Аксенов
 * This file is part of iptv.axenov.dev web interface
 * MIT License: https://git.axenov.dev/IPTV/web/src/branch/master/LICENSE
 */

declare(strict_types=1);

namespace App\Controllers;

use App\Errors\PlaylistNotFoundException;
use App\Playlists\ChannelLogo;
use chillerlan\QRCode\QRCode;
use chillerlan\QRCode\QROptions;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Twig\Error\LoaderError;

/**
 * Контроллер методов API
 */
class ApiController extends BasicController
{
    /**
     * Возвращает информацию о каналов плейлиста
     *
     * @param ServerRequestInterface $request
     * @param ResponseInterface $response
     * @return ResponseInterface
     * @throws LoaderError
     */
    public function makeQrCode(ServerRequestInterface $request, ResponseInterface $response): ResponseInterface
    {
        $code = $request->getAttribute('code');
        $codes = array_keys(ini()->getPlaylists());
        if (!in_array($code, $codes, true)) {
            return $response->withStatus(404);
        }

        $filePath = cache_path("qr-codes/$code.jpg");
        if (file_exists($filePath)) {
            $raw = file_get_contents($filePath);
        } else {
            $options = new QROptions([
                'version' => 5,
                'outputType' => QRCode::OUTPUT_IMAGE_JPG,
                'eccLevel' => QRCode::ECC_L,
            ]);
            $data = base_url("$code");
            $raw = (new QRCode($options))->render($data, $filePath);
            $raw = base64_decode(str_replace('data:image/jpg;base64,', '', $raw));
        }

        $mime = mime_content_type($filePath);
        $response->getBody()->write($raw);
        return $response->withStatus(200)
            ->withHeader('Content-Type', $mime);
    }

    /**
     * Возвращает информацию о плейлисте
     *
     * @param ServerRequestInterface $request
     * @param ResponseInterface $response
     * @return ResponseInterface
     * @throws LoaderError
     */
    public function getPlaylist(ServerRequestInterface $request, ResponseInterface $response): ResponseInterface
    {
        $code = $request->getAttributes()['code'];

        try {
            $playlist = ini()->getPlaylist($code);
            return $this->responseJson($response, 200, $playlist);
        } catch (PlaylistNotFoundException $e) {
            return $this->responseJsonError($response, 404, $e);
        }
    }

    /**
     * Возвращает логотип канала
     *
     * @param ServerRequestInterface $request
     * @param ResponseInterface $response
     * @return ResponseInterface
     * @throws LoaderError
     * @throws PlaylistNotFoundException
     * @todo логотипы каналов
     */
    public function logo(ServerRequestInterface $request, ResponseInterface $response): ResponseInterface
    {
        $code = $request->getAttributes()['code'];
        $playlist = ini()->getPlaylist($code);
        $channelHash = $request->getAttributes()['hash'];
        $channel = $playlist['channels'][$channelHash];
        $url = $channel['attributes']['tvg-logo'] ?? '';

        $logo = new ChannelLogo($url);
        if (!$logo->readFile()) {
            $logo->fetch();
            if ($logo->size() === 0) {
                $logo->setDefault();
            } else {
                $logo->store();
            }
        }

        $body = $logo->raw();
        $size = $logo->size();
        $mime = $logo->mimeType();

        $response->getBody()->write($body);
        return $response->withHeader('Content-Type', $mime)
            ->withHeader('Content-Length', $size);
    }
}