<?php

namespace Modules\EcommerceFinance\Services;

/**
 * 退货扣减确认：厂家逐行「确认 / 异议」，或一键全部确认。
 * 状态存在按表数据表里（数据集 return-confirmation:<厂家>，记录键沿用退货行的 _action_key）。
 */
class SupplierReturnConfirmation
{
    public const PREFIX = 'return-confirmation:';

    public const STATUS_CONFIRMED = 'confirmed';

    public const STATUS_DISPUTED = 'disputed';

    public function __construct(
        private readonly SupplierPayableOverrideStore $store,
    ) {
    }

    /** @return array<string,string> 记录键 => 状态 */
    public function statuses(string $supplier, int $companyId): array
    {
        $statuses = [];
        foreach ($this->store->listRows(self::PREFIX . $supplier, $companyId) as $row) {
            $key = (string) ($row['_action_key'] ?? '');
            $status = (string) ($row['status'] ?? '');
            if ($key !== '' && in_array($status, [self::STATUS_CONFIRMED, self::STATUS_DISPUTED], true)) {
                $statuses[$key] = $status;
            }
        }

        return $statuses;
    }

    public function mark(
        string $supplier,
        string $recordKey,
        string $status,
        int $companyId,
        ?int $userId,
        string $source = 'manual',
    ): void
    {
        if (! in_array($status, [self::STATUS_CONFIRMED, self::STATUS_DISPUTED], true)) {
            return;
        }

        $this->store->save(self::PREFIX . $supplier, $recordKey, [
            'status' => $status,
            'marked_at' => now()->toDateTimeString(),
            'marked_via' => $source,
        ], $companyId, $userId, $source);
    }

    /** @param  list<string>  $recordKeys  一键确认全部（已异议的行保持异议，不覆盖） */
    public function confirmAll(
        string $supplier,
        array $recordKeys,
        int $companyId,
        ?int $userId,
        string $source = 'manual',
    ): int
    {
        $statuses = $this->statuses($supplier, $companyId);

        $confirmed = 0;
        $this->store->transaction(function () use ($supplier, $recordKeys, $statuses, $companyId, $userId, $source, &$confirmed): void {
            foreach ($recordKeys as $key) {
                if ($key === '') {
                    continue;
                }

                $status = $statuses[$key] ?? '';
                if ($status === self::STATUS_DISPUTED) {
                    continue;
                }

                if ($status !== self::STATUS_CONFIRMED) {
                    $this->mark($supplier, $key, self::STATUS_CONFIRMED, $companyId, $userId, $source);
                }
                $confirmed++;
            }
        });

        return $confirmed;
    }
}