<?php

declare(strict_types=1);

require_once __DIR__ . '/MediaType.php';
require_once __DIR__ . '/../services/ImageHandler.php';

class Movie extends MediaType {
    private ImageHandler $imageHandler;
    private bool $isUpdate = false;
    private ?int $mediaId = null;

    public function __construct(PDO $pdo) {
        parent::__construct($pdo);
        $this->imageHandler = new ImageHandler();
    }

    protected function getType(): string {
        return 'Movie';
    }

    protected function getTypeSpecificFields(): array {
        return ['runtime', 'director', 'writer'];
    }

    protected function validateTypeSpecificFields(array $data): array {
        // Movies sollten bestimmte Felder haben
        if (isset($data['runtime']) && !is_numeric($data['runtime'])) {
            throw new Exception('Runtime must be a number');
        }
        return $data;
    }

    protected function processPosterField(array $data): array {
        error_log("Movie::processPosterField - Checking for poster field, isUpdate: " . ($this->isUpdate ? 'yes' : 'no'));

        // If this is an update and poster is being changed, delete old image
        if ($this->isUpdate && $this->mediaId && isset($data['poster']) && !empty($data['poster'])) {
            $currentMedia = $this->findById($this->mediaId);
            if ($currentMedia && !empty($currentMedia['poster'])) {
                $oldPoster = $currentMedia['poster'];
                if (strpos($oldPoster, '/images/') === 0) {
                    error_log("Movie::processPosterField - Deleting old poster: " . $oldPoster);
                    $this->imageHandler->deleteImage($oldPoster);
                }
            }
        }

        if (isset($data['poster']) && !empty($data['poster'])) {
            error_log("Movie::processPosterField - Poster found, length: " . strlen($data['poster']));

            if (strpos($data['poster'], '/images/') === 0 || filter_var($data['poster'], FILTER_VALIDATE_URL)) {
                error_log("Movie::processPosterField - Poster is already a path or URL, skipping processing");
                return $data;
            }

            $posterPath = $this->imageHandler->saveBase64Image($data['poster'], 'movies/poster');
            error_log("Movie::processPosterField - ImageHandler returned: " . ($posterPath ?: 'null'));
            if ($posterPath) {
                $data['poster'] = $posterPath;
                error_log("Movie::processPosterField - Poster path set to: " . $posterPath);
            } else {
                error_log("Movie::processPosterField - Failed to process poster, keeping original data");
            }
        } else {
            error_log("Movie::processPosterField - No poster field found or empty");
        }
        return $data;
    }

    public function createWithRelations(array $data): int {
        $data['type'] = 'Movie';
        $data = $this->validateTypeSpecificFields($data);
        $data = $this->processPosterField($data);
        return parent::createWithRelations($data);
    }

    public function updateWithRelations(int $id, array $data): bool {
        $this->isUpdate = true;
        $this->mediaId = $id;
        $this->validateTypeSpecificFields($data);
        $data = $this->processPosterField($data);
        return parent::updateWithRelations($id, $data);
    }

    public function search(array $filters = [], int $page = 1, int $limit = 20): array {
        // Nur Movies suchen
        $filters['type'] = 'Movie';
        return parent::search($filters, $page, $limit);
    }
}