<?php

namespace App\Console\Commands;

use Illuminate\Console\Command;
use Illuminate\Support\Carbon;
use Illuminate\Support\Facades\Log;
use Modules\EcommerceFinance\Repositories\GenericBusinessMirrorRepository;
use Modules\EcommerceFinance\Services\BusinessMirrorDatasetRegistry;
use Modules\EcommerceFinance\Services\BusinessMirrorSynchronizer;
use Throwable;

class SyncProductCatalogMirror extends Command
{
    protected $signature = 'business-mirror:sync-product-catalog
        {--full : 强制启动或继续普通商品全量校准}
        {--batch= : 每批最多读取行数}
        {--max-batches= : 本轮最多批次数，0 表示直到完成}';

    protected $description = '高频同步聚水潭普通商品，并在每周低峰期执行可断点全量校准';

    public function handle(
        BusinessMirrorDatasetRegistry $datasets,
        BusinessMirrorSynchronizer $synchronizer,
        GenericBusinessMirrorRepository $mirror,
    ): int {
        if (! (bool) config('upstream_mirrors.refresh_enabled', false) && ! $this->option('full')) {
            return self::SUCCESS;
        }

        $datasetKey = (string) config(
            'upstream_mirrors.product_catalog.dataset_key',
            'operations_replica.rpt.jst_sku',
        );

        try {
            $dataset = $datasets->get($datasetKey);
            $state = $mirror->state($dataset);
            $full = $this->shouldRunFull($state);
            $result = $synchronizer->sync(
                $datasetKey,
                $full,
                $this->option('batch') === null
                    ? (int) config('upstream_mirrors.product_catalog.batch_size', 1000)
                    : (int) $this->option('batch'),
                $this->option('max-batches') === null
                    ? (int) config('upstream_mirrors.product_catalog.max_batches_per_run', 5)
                    : (int) $this->option('max-batches'),
            );
        } catch (Throwable $exception) {
            Log::error('普通商品共享镜像同步失败。', [
                'dataset' => $datasetKey,
                'exception' => $exception::class,
            ]);
            $this->error('普通商品同步失败，已保留上一版共享数据。');

            return self::FAILURE;
        }

        if ($result['status'] === 'requires_full_sync') {
            $this->warn('普通商品尚未完成首次全量同步，请完成备份后显式使用 --full。');

            return self::SUCCESS;
        }

        $this->info(sprintf(
            '普通商品%s：%s，本轮 %d 批，累计处理 %d 行。',
            $result['mode'] === 'full' ? '全量校准' : '增量同步',
            $result['status'] === 'succeeded' ? '完成' : '进行中',
            $result['batches'],
            $result['rows'],
        ));

        return self::SUCCESS;
    }

    /** @param array<string,mixed>|null $state */
    private function shouldRunFull(?array $state): bool
    {
        if ((bool) $this->option('full')) {
            return true;
        }

        if (is_array($state)
            && ($state['run_mode'] ?? null) === 'full'
            && in_array($state['status'] ?? null, ['running', 'failed'], true)) {
            return true;
        }

        if (! is_array($state) || ($state['initial_completed_at'] ?? null) === null) {
            return false;
        }

        $now = now();
        if (! $this->isReconcileWindow($now)) {
            return false;
        }

        $lastFull = $state['last_full_succeeded_at'] ?? null;
        if ($lastFull === null || $lastFull === '') {
            return true;
        }

        $hours = max((int) config('upstream_mirrors.product_catalog.full_reconcile_hours', 168), 1);

        return Carbon::parse((string) $lastFull)->addHours($hours)->lte($now);
    }

    private function isReconcileWindow(Carbon $now): bool
    {
        $weekday = min(max((int) config('upstream_mirrors.product_catalog.reconcile_weekday', 0), 0), 6);
        $startHour = min(max((int) config('upstream_mirrors.product_catalog.reconcile_start_hour', 2), 0), 23);
        $windowHours = min(max((int) config('upstream_mirrors.product_catalog.reconcile_window_hours', 6), 1), 24 - $startHour);

        return $now->dayOfWeek === $weekday
            && $now->hour >= $startHour
            && $now->hour < $startHour + $windowHours;
    }
}