<?php

namespace app\support;

use support\Request;
use function str_starts_with;
use function strtolower;

class TicketAttachmentService
{
    public function upload(Request $request, string $inputName = 'file'): array
    {
        $file = $request->file($inputName);
        if (!$file || !$file->isValid()) {
            throw new \RuntimeException('上传文件无效');
        }

        $extension = strtolower($file->getUploadExtension() ?: 'jpg');
        $filename = sprintf('ticket_%s.%s', uniqid(), $extension);
        $relativeDir = 'uploads/tickets/' . date('Ymd');
        $relativePath = $relativeDir . '/' . $filename;
        $this->storage()->putUploadedFile($file, $relativePath);

        $fileUrl = $this->storage()->publicUrl($request, $relativePath);

        return [
            'file_id' => md5($relativePath),
            'file_url' => $fileUrl,
            'thumbnail_url' => $fileUrl,
            'name' => $file->getUploadName(),
        ];
    }

    public function delete(string $fileUrl): void
    {
        $relativePath = $this->storage()->storagePath($fileUrl);
        if (!str_starts_with($relativePath, 'uploads/tickets/')) {
            return;
        }

        $this->storage()->delete($relativePath);
    }

    public function normalize(mixed $attachments, ?Request $request = null, bool $forStorage = false): array
    {
        if (is_string($attachments) && $attachments !== '') {
            $decoded = json_decode($attachments, true);
            $attachments = is_array($decoded) ? $decoded : [];
        }

        if (!is_array($attachments)) {
            return [];
        }

        $list = [];
        foreach ($attachments as $item) {
            if (!is_array($item)) {
                continue;
            }

            $fileUrl = trim((string)($item['file_url'] ?? ''));
            if ($fileUrl === '') {
                continue;
            }

            $storedFileUrl = $this->storage()->storagePath($fileUrl);
            $storedThumbnailUrl = $this->storage()->storagePath(trim((string)($item['thumbnail_url'] ?? $fileUrl)));

            $list[] = [
                'file_id' => trim((string)($item['file_id'] ?? md5($storedFileUrl))),
                'file_url' => $forStorage
                    ? '/' . $storedFileUrl
                    : ($request ? $this->storage()->normalizeUrl($fileUrl, $request) : $fileUrl),
                'thumbnail_url' => $forStorage
                    ? '/' . $storedThumbnailUrl
                    : ($request ? $this->storage()->normalizeUrl(trim((string)($item['thumbnail_url'] ?? $fileUrl)), $request) : trim((string)($item['thumbnail_url'] ?? $fileUrl))),
                'name' => trim((string)($item['name'] ?? '')),
            ];
        }

        return $list;
    }

    private function storage(): FileStorageService
    {
        return new FileStorageService();
    }
}