<?php

namespace App\Console\Commands;

use Illuminate\Cache\CacheManager;
use Illuminate\Console\Command;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Log;
use Modules\EcommerceFinance\Services\UpstreamSchemaCatalogSynchronizer;
use Modules\EcommerceFinance\Services\UpstreamSourceRegistry;
use Throwable;

class UpstreamSyncSchemaCatalog extends Command
{
    protected $signature = 'upstream:schema:sync
        {source? : 仅同步指定来源}
        {--due : 仅同步超过 24 小时未更新的来源}';

    protected $description = '低频同步上游表、视图和字段目录到共享系统数据库';

    public function handle(
        UpstreamSchemaCatalogSynchronizer $synchronizer,
        UpstreamSourceRegistry $sources,
        CacheManager $cacheManager,
    ): int {
        if (! $synchronizer->ready()) {
            $this->warn('共享系统数据库尚未执行数据字典迁移。');

            return self::SUCCESS;
        }

        $requested = $this->argument('source');
        $sourceKeys = $requested
            ? [(string) $requested]
            : array_keys($sources->all());
        $cache = $cacheManager->store((string) config('upstreams.snapshots.cache_store', 'upstream_shared'));
        $failed = false;

        foreach ($sourceKeys as $source) {
            try {
                $sources->definition($source);

                if (! $sources->enabled($source) || $this->isFresh($source)) {
                    continue;
                }

                $lock = $cache->lock('upstream:schema-sync:' . $source, 600);

                if (! $lock->get()) {
                    continue;
                }

                try {
                    $result = $synchronizer->sync($source);
                    $this->info(sprintf(
                        '%s：已同步 %d 个对象、%d 个字段。',
                        $source,
                        $result['objects'],
                        $result['columns']
                    ));
                } finally {
                    $lock->release();
                }
            } catch (Throwable $exception) {
                $failed = true;
                Log::warning('上游数据字典同步失败，已保留原目录。', [
                    'source' => $source,
                    'exception' => $exception::class,
                ]);
                $this->error($source . '：同步失败，已保留原目录。');
            }
        }

        return $failed ? self::FAILURE : self::SUCCESS;
    }

    private function isFresh(string $source): bool
    {
        if (! $this->option('due')) {
            return false;
        }

        $latest = DB::table('upstream_schema_columns')
            ->where('source_key', $source)
            ->max('synchronized_at');

        return $latest !== null && now()->diffInHours($latest) < 24;
    }
}