<?php

namespace App\Console\Commands;

use App\Models\CrawlJob;
use App\Models\News;
use App\Services\Crawl\CrawlAddressSourceResolver;
use Illuminate\Console\Command;

class FixCrawlNewsSourceCommand extends Command
{
    protected $signature = 'crawl:fix-news-source
                            {--from=* : 需要替换的旧来源值，默认：通用资讯 HTML、爬虫采集}
                            {--dry-run : 仅预览，不写入数据库}';

    protected $description = '将爬虫入库资讯的来源字段修正为爬虫地址名称（如交大要闻、南大要闻）';

    public function handle(CrawlAddressSourceResolver $resolver): int
    {
        $fromValues = $this->option('from');
        if ($fromValues === [] || $fromValues === null) {
            $fromValues = $resolver->genericAdapterSourceNames();
        }

        $dryRun = (bool) $this->option('dry-run');
        $updated = 0;
        $skipped = 0;

        News::query()
            ->where(function ($query) use ($fromValues) {
                $query->whereIn('source', $fromValues)
                    ->orWhereIn('source_site', $fromValues);
            })
            ->orderBy('id')
            ->chunkById(200, function ($rows) use ($resolver, $dryRun, &$updated, &$skipped) {
                /** @var \Illuminate\Support\Collection<int, News> $rows */
                foreach ($rows as $news) {
                    $jobUrl = null;
                    if ($news->crawl_job_id) {
                        $jobUrl = CrawlJob::query()->whereKey($news->crawl_job_id)->value('request_url');
                    }

                    $newSource = $resolver->resolveForNews($jobUrl, $news->source_url);
                    if ($newSource === null || $newSource === '') {
                        $skipped++;
                        $this->line(sprintf(
                            '跳过 #%d %s（无法匹配爬虫地址，job=%s url=%s）',
                            $news->id,
                            $news->title,
                            $news->crawl_job_id ?: '—',
                            $news->source_url ?: '—',
                        ));

                        continue;
                    }

                    if ($news->source === $newSource && $news->source_site === $newSource) {
                        $skipped++;

                        continue;
                    }

                    $this->line(sprintf(
                        '%s #%d：%s → %s',
                        $dryRun ? '预览' : '更新',
                        $news->id,
                        $news->source ?: '—',
                        $newSource,
                    ));

                    if (! $dryRun) {
                        $news->update([
                            'source' => $newSource,
                            'source_site' => $newSource,
                        ]);
                    }

                    $updated++;
                }
            });

        $this->info(sprintf(
            '%s完成：修正 %d 条，跳过 %d 条。',
            $dryRun ? '预览' : '批量',
            $updated,
            $skipped,
        ));

        if ($dryRun && $updated > 0) {
            $this->comment('确认无误后，去掉 --dry-run 再执行一次即可写入。');
        }

        return self::SUCCESS;
    }
}