<?php

namespace App\Support;

/**
 * 平台订单列表页工具区：前端治理阻断口径（减少误点）。
 *
 * 说明：后端各批量动作/清理动作本身仍有安全阀阻断；这里仅用于 UI 层“按钮禁用 + 提示原因”。
 */
class PlatformOrderToolsGuard
{
    /**
     * @param array<string, mixed> $filters
     * @return array<string, array{blocked:bool, reason:string}>
     */
    public static function forIndex(array $filters): array
    {
        $batchActivateReason = self::batchActivateSubscriptionsReason($filters);
        $batchBmpaReason = self::batchBmpaReason($filters);
        $batchMarkActivatedReason = self::batchMarkActivatedReason($filters);
        $clearSyncReason = self::clearSyncErrorsReason($filters);
        $clearBmpaReason = self::clearBmpaErrorsReason($filters);

        return [
            'batch_activate_subscriptions' => [
                'blocked' => $batchActivateReason !== '',
                'reason' => $batchActivateReason,
            ],
            'batch_bmpa' => [
                'blocked' => $batchBmpaReason !== '',
                'reason' => $batchBmpaReason,
            ],
            'batch_mark_activated' => [
                'blocked' => $batchMarkActivatedReason !== '',
                'reason' => $batchMarkActivatedReason,
            ],
            'clear_sync_errors' => [
                'blocked' => $clearSyncReason !== '',
                'reason' => $clearSyncReason,
            ],
            'clear_bmpa_errors' => [
                'blocked' => $clearBmpaReason !== '',
                'reason' => $clearBmpaReason,
            ],
        ];
    }

    /**
     * @param array<string, mixed> $filters
     */
    public static function batchActivateSubscriptionsReason(array $filters): string
    {
        if ((string) ($filters['syncable_only'] ?? '') !== '1') {
            return '请先勾选「只看可同步」再执行批量同步。';
        }
        // 口径一致：可同步集合语义为 unsynced（未同步且非失败）。
        // 若用户手工叠加了 sync_status=failed/synced 等互斥筛选，按钮应直接禁用，避免误解“当前会同步哪些单”。
        $syncStatus = (string) ($filters['sync_status'] ?? '');
        if ($syncStatus !== '' && $syncStatus !== 'unsynced') {
            return '当前已勾选「只看可同步」，但同步状态筛选不是「未同步」。请先切回 sync_status=unsynced（或清空同步状态筛选）后再批量同步。';
        }
        if ((string) ($filters['fail_only'] ?? '') === '1' || trim((string) ($filters['sync_error_keyword'] ?? '')) !== '') {
            return '当前筛选包含「同步失败/失败原因」。请先治理失败原因或切回未同步集合，再批量同步。';
        }
        if ((string) ($filters['receipt_status'] ?? '') === 'none') {
            return '当前集合为「无回执」：建议先补齐支付回执留痕后再批量同步。';
        }
        if (((string) ($filters['reconcile_mismatch'] ?? '') === '1') || ((string) ($filters['refund_inconsistent'] ?? '') === '1')) {
            return '当前集合包含「对账不一致/退款不一致」：建议先完成金额/状态治理后再批量同步。';
        }

        return '';
    }

    /**
     * @param array<string, mixed> $filters
     */
    public static function batchBmpaReason(array $filters): string
    {
        if ((string) ($filters['status'] ?? '') !== 'pending' || (string) ($filters['payment_status'] ?? '') !== 'unpaid') {
            return '请先筛选「订单状态=待处理」且「支付状态=未支付」再执行批量 BMPA。';
        }
        if (((string) ($filters['reconcile_mismatch'] ?? '') === '1') || ((string) ($filters['refund_inconsistent'] ?? '') === '1')) {
            return '当前集合包含「对账不一致/退款不一致」治理集合：建议先完成回执/退款治理后再批量推进。';
        }

        return '';
    }

    /**
     * @param array<string, mixed> $filters
     */
    public static function batchMarkActivatedReason(array $filters): string
    {
        if ((string) ($filters['payment_status'] ?? '') !== 'paid' || (string) ($filters['status'] ?? '') !== 'pending') {
            return '请先筛选「支付状态=已支付」且「订单状态=待处理」再执行批量生效。';
        }

        // 待生效口径一致：paid + pending + unsynced（排除同步失败等异常单），避免误把失败单“批量生效”导致治理链路混乱。
        if ((string) ($filters['sync_status'] ?? '') !== 'unsynced') {
            return '为避免把同步失败等异常单混入，请先锁定「同步状态=未同步(sync_status=unsynced)」（建议用快捷筛选「待生效」）再执行批量生效。';
        }

        // 互斥筛选阻断：避免运营在其它治理集合上误触“批量生效”导致误解。
        if ((string) ($filters['fail_only'] ?? '') === '1' || trim((string) ($filters['sync_error_keyword'] ?? '')) !== '') {
            return '当前筛选包含「同步失败/失败原因」治理集合：与“待生效(unsynced)”互斥。请先切回待生效集合后再执行批量生效。';
        }
        if ((string) ($filters['synced_only'] ?? '') === '1') {
            return '当前已勾选「只看已同步」：该集合与“待生效(unsynced)”互斥。请先取消该筛选后再执行批量生效。';
        }
        if ((string) ($filters['syncable_only'] ?? '') === '1') {
            return '当前已勾选「只看可同步」：该集合语义为“已生效(activated)+未同步”，与本动作处理的“待处理(pending)”互斥。请先取消只看可同步后再执行。';
        }

        return '';
    }

    /**
     * @param array<string, mixed> $filters
     */
    public static function clearSyncErrorsReason(array $filters): string
    {
        if ((string) ($filters['sync_status'] ?? '') !== 'failed' && (string) ($filters['fail_only'] ?? '') === '') {
            return '建议先筛选「同步失败」集合（sync_status=failed）后再执行清理，避免误清理。';
        }

        return '';
    }

    /**
     * @param array<string, mixed> $filters
     */
    public static function clearBmpaErrorsReason(array $filters): string
    {
        if ((string) ($filters['bmpa_failed_only'] ?? '') === ''
            && (string) ($filters['bmpa_error_keyword'] ?? '') === ''
            && (string) ($filters['batch_mark_paid_and_activate_24h'] ?? '') === '') {
            return '建议先筛选「BMPA失败」集合（bmpa_failed_only=1 或失败原因关键词）后再执行清理，避免误清理。';
        }

        return '';
    }
}