<?php

namespace App\Console\Commands;

use App\Models\Book;
use App\Models\Config;
use App\Models\Upload;
use Illuminate\Console\Command;
use Illuminate\Support\Facades\Http;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Str;

class UpdateBookIsbnData extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'book:update-isbn-data';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = '从ISBN接口获取书籍数据并下载封面图片';

    /**
     * Create a new command instance.
     *
     * @return void
     */
    public function __construct()
    {
        parent::__construct();
    }

    /**
     * Execute the console command.
     *
     * @return mixed
     */
    public function handle()
    {
        $apiKey = Config::getValueByKey('book_key');

        // 获取所有有ISBN的书籍
        $books = Book::whereNotNull('isbn')
            ->where('isbn', '!=', '')
            ->whereNull('cover_id')
            ->where('id', 1)
            ->get();

        if ($books->isEmpty()) {
            $this->info('没有找到未处理封面的书籍');
            return 0;
        }

        $this->info("找到 {$books->count()} 本书需要处理");

        $bar = $this->output->createProgressBar($books->count());
        $bar->start();

        $successCount = 0;
        $failCount = 0;

        foreach ($books as $book) {
            try {
                $result = $this->processBook($book, $apiKey);
                if ($result) {
                    $successCount++;
                    $this->line("\n✓ 成功处理书籍: {$book->title} (ISBN: {$book->isbn})");
                } else {
                    $failCount++;
                    $this->line("\n✗ 处理失败: {$book->title} (ISBN: {$book->isbn})");
                }
            } catch (\Exception $e) {
                $failCount++;
                $this->line("\n✗ 处理异常: {$book->title} - {$e->getMessage()}");
            }

            $bar->advance();

            // 添加延迟避免API请求过快
            sleep(1);
        }

        $bar->finish();

        $this->line('');
        $this->info("处理完成！成功: {$successCount}, 失败: {$failCount}");

        return 0;
    }

    /**
     * 处理单本书籍
     *
     * @param Book $book
     * @param string $apiKey
     * @return bool
     */
    private function processBook(Book $book, string $apiKey): bool
    {
        // 调用ISBN接口
        $response = Http::timeout(30)->get('https://api.tanshuapi.com/api/isbn/v2/index', [
            'key' => $apiKey,
            'isbn' => $book->isbn
        ]);

        if (!$response->successful()) {
            $this->error("API请求失败: HTTP {$response->status()}");
            return false;
        }

        $data = $response->json();

        if (!$data || $data['code'] !== 1) {
            $this->error("API返回错误: " . ($data['msg'] ?? '未知错误'));
            return false;
        }

        $bookData = $data['data'];

        // 更新书籍的other_data字段
        $book->other_data = $bookData;

        // 如果有图片URL，下载图片
        if (!empty($bookData['img'])) {
            $coverId = $this->downloadAndSaveImage($bookData['img'], $book);
            if ($coverId) {
                $book->cover_id = $coverId;
            }
        }

        $book->save();

        return true;
    }

    /**
     * 下载图片并保存到本地
     *
     * @param string $imageUrl
     * @param Book $book
     * @return int|null
     */
    private function downloadAndSaveImage(string $imageUrl, Book $book): ?int
    {
        try {
            // 下载图片
            $response = Http::timeout(30)->get($imageUrl);

            if (!$response->successful()) {
                $this->error("图片下载失败: {$imageUrl}");
                return null;
            }

            $imageContent = $response->body();

            // 获取文件扩展名
            $extension = $this->getImageExtension($imageUrl, $response->header('Content-Type'));

            // 生成文件名
            $filename = 'book_cover_' . $book->id . '_' . time() . '.' . $extension;

            // 定义存储目录
            $folder = 'uploads/book_covers';

            // 确保目录存在
            $fullPath = public_path($folder);
            if (!file_exists($fullPath)) {
                mkdir($fullPath, 0755, true);
            }

            // 保存文件
            $filePath = $folder . '/' . $filename;
            file_put_contents(public_path($filePath), $imageContent);

            // 获取文件大小
            $fileSize = strlen($imageContent);

            // 创建uploads记录
            $upload = Upload::create([
                'belongs_type' => 'App\\Models\\Book',
                'belongs_id' => $book->id,
                'original_name' => basename($imageUrl),
                'folder' => $folder,
                'name' => $filename,
                'extension' => $extension,
                'size' => $fileSize,
                'creator_type' => 'console',
                'creator_id' => null,
            ]);

            return $upload->id;

        } catch (\Exception $e) {
            $this->error("保存图片时出错: {$e->getMessage()}");
            return null;
        }
    }

    /**
     * 获取图片扩展名
     *
     * @param string $url
     * @param string|null $contentType
     * @return string
     */
    private function getImageExtension(string $url, ?string $contentType = null): string
    {
        // 首先尝试从URL获取扩展名
        $pathInfo = pathinfo(parse_url($url, PHP_URL_PATH));
        if (!empty($pathInfo['extension'])) {
            return strtolower($pathInfo['extension']);
        }

        // 从Content-Type获取扩展名
        if ($contentType) {
            $mimeToExt = [
                'image/jpeg' => 'jpg',
                'image/jpg' => 'jpg',
                'image/png' => 'png',
                'image/gif' => 'gif',
                'image/webp' => 'webp',
                'image/bmp' => 'bmp',
            ];

            $contentType = strtolower(trim(explode(';', $contentType)[0]));
            if (isset($mimeToExt[$contentType])) {
                return $mimeToExt[$contentType];
            }
        }

        // 默认返回jpg
        return 'jpg';
    }
}