<?php

namespace App\Console\Commands;

use Illuminate\Cache\CacheManager;
use Illuminate\Contracts\Cache\Repository;
use Illuminate\Console\Command;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Log;
use Modules\EcommerceFinance\Services\UpstreamSnapshotRefresherRegistry;
use Throwable;

class UpstreamRefreshAllSnapshots extends Command
{
    protected $signature = 'upstream:snapshots:refresh-all
        {--limit= : 每个来源本轮最多刷新的活跃查询数}';

    protected $description = '使用共享锁刷新所有已经登记刷新器的上游活跃查询';

    public function handle(
        UpstreamSnapshotRefresherRegistry $refreshers,
        CacheManager $cacheManager,
    ): int {
        // 每分钟运行的后台刷新周期只会在目录超过 24 小时时真正读取一次元数据。
        // 失败不阻断已有业务快照刷新，原有数据字典也会被保留。
        $this->call('upstream:schema:sync', ['--due' => true]);

        $storeName = (string) config('upstreams.snapshots.cache_store', 'upstream_shared');
        $cache = $cacheManager->store($storeName);
        $failed = false;

        foreach ($refreshers->sources() as $source) {
            $lock = $cache->lock('refresh-cycle:' . $source, 180);

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

            try {
                $arguments = ['source' => $source];

                if ($this->option('limit') !== null) {
                    $arguments['--limit'] = (int) $this->option('limit');
                }

                if ($this->call('upstream:snapshots:refresh', $arguments) !== self::SUCCESS) {
                    $failed = true;
                }
            } catch (Throwable $exception) {
                $failed = true;
                Log::error('上游共享快照刷新周期失败，已继续处理其他来源。', [
                    'source' => $source,
                    'exception' => $exception::class,
                ]);
            } finally {
                $lock->release();
            }
        }

        $this->pruneExpiredSharedEntries($cache, $storeName);

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

    private function pruneExpiredSharedEntries(Repository $cache, string $storeName): void
    {
        $window = now()->format('YmdH');

        if (! $cache->add('prune-window:' . $window, true, 7200)) {
            return;
        }

        $store = (array) config('cache.stores.' . $storeName, []);

        if (($store['driver'] ?? null) !== 'database') {
            return;
        }

        try {
            $connection = DB::connection($store['connection'] ?? null);
            $expiration = time();
            $connection->table((string) ($store['table'] ?? 'upstream_query_cache'))
                ->where('expiration', '<=', $expiration)
                ->delete();
            $connection->table((string) ($store['lock_table'] ?? 'upstream_query_locks'))
                ->where('expiration', '<=', $expiration)
                ->delete();
        } catch (Throwable $exception) {
            Log::warning('清理过期上游共享快照失败。', [
                'exception' => $exception::class,
            ]);
        }
    }
}