<?php

namespace Modules\EcommerceFinance\Repositories;

use Modules\EcommerceFinance\Services\JianSunConnection;
use Modules\EcommerceFinance\Services\UpstreamReadOnlyQuery;
use Modules\EcommerceFinance\Services\UpstreamReadOnlyQueryFactory;
use PDO;

/**
 * 供应商应付 - 子功能页面数据仓库
 *
 * 封装 5 个子页面的数据访问逻辑：
 *   - returnReconciliations()      退货对账
 *   - invoiceDeductions()          发票扣款
 *   - compensationDetails()        赔偿明细
 *   - advanceDetails()             借支明细
 *   - sampleDeductions()           样品扣款
 *
 * 所有方法返回统一结构: ['data' => array<int,array>, 'total' => int]
 */
class SupplierPayableRepository
{
    private ?PDO $db = null;

    private readonly UpstreamReadOnlyQuery $query;

    public function __construct(UpstreamReadOnlyQueryFactory $queries)
    {
        $this->query = $queries->forSource('jiansun');
    }

    private function db(): PDO
    {
        return $this->db ??= JianSunConnection::get();
    }

    /**
     * 通用工具：带筛选 + 分页的查询
     */
    private function runQuery(
        string $sql,
        array $params,
        int $page,
        int $pageSize,
        string $orderBy = '(SELECT 0)',
        int $countThreshold = 5000
    ): array
    {
        $offset = ($page - 1) * $pageSize;

        // 1. 总数（先查总数，超阈值再用近似）
        $countSql = 'SELECT COUNT(*) AS cnt FROM (' . $sql . ') AS sub';
        $total    = 0;
        try {
            $stmt = $this->db()->prepare($countSql);
            $stmt->execute($params);
            $total = (int) $stmt->fetchColumn();
        } catch (\Throwable $e) {
            // 极端情况：表太大查不到总数时退回到 -1
            $total = -1;
        }

        // 2. 分页数据：排序字段只允许由仓库内部固定传入，不接受请求参数。
        // ROW_NUMBER 位于无 ORDER BY 的派生表外层，兼容旧版 SQL Server。
        $pagedSql = 'SELECT * FROM (SELECT src.*, ROW_NUMBER() OVER (ORDER BY ' . $orderBy . ') AS rn FROM (' . $sql . ') AS src) AS t WHERE rn BETWEEN ? AND ? ORDER BY rn';
        $paramsWithRange = array_merge($params, [$offset + 1, $offset + $pageSize]);

        $stmt = $this->db()->prepare($pagedSql);
        $stmt->execute($paramsWithRange);

        return [
            'data'  => $stmt->fetchAll(),
            'total' => $total,
        ];
    }

    /**
     * 计算分页的 SELECT TOP N（无 COUNT），加速大表查询
     */
    private function runQueryFast(
        string $sql,
        array $params,
        int $page,
        int $pageSize,
        int $total = -1,
        string $orderBy = '(SELECT 0)'
    ): array
    {
        $offset = ($page - 1) * $pageSize;
        $pagedSql = 'SELECT * FROM (SELECT src.*, ROW_NUMBER() OVER (ORDER BY ' . $orderBy . ') AS rn FROM (' . $sql . ') AS src) AS t WHERE rn BETWEEN ? AND ? ORDER BY rn';
        $paramsWithRange = array_merge($params, [$offset + 1, $offset + $pageSize]);
        $stmt = $this->db()->prepare($pagedSql);
        $stmt->execute($paramsWithRange);

        return [
            'data'  => $stmt->fetchAll(),
            'total' => $total,
        ];
    }

    // ============================================================
    // 1. 退货对账 — finance_purchaseReturn (36791行)
    // ============================================================
    public function returnReconciliations(array $filters, int $page, int $pageSize): array
    {
        $where  = [];
        $params = [];

        if (!empty($filters['supplier'])) {
            $where[]             = 'supplierName LIKE ?';
            $params[]            = '%' . $filters['supplier'] . '%';
        }
        if (!empty($filters['warehouse'])) {
            $where[]  = 'warehouseName LIKE ?';
            $params[] = '%' . $filters['warehouse'] . '%';
        }
        if (!empty($filters['sku_id'])) {
            $where[]  = 'sku_id LIKE ?';
            $params[] = '%' . $filters['sku_id'] . '%';
        }
        if (!empty($filters['express_no'])) {
            $where[]  = 'expressNo LIKE ?';
            $params[] = '%' . $filters['express_no'] . '%';
        }
        if (!empty($filters['date_from'])) {
            $where[]  = 'date >= ?';
            $params[] = $filters['date_from'];
        }
        if (!empty($filters['date_to'])) {
            $where[]  = 'date <= ?';
            $params[] = $filters['date_to'];
        }

        $whereSql = $where ? 'WHERE ' . implode(' AND ', $where) : '';

        $sql = "SELECT
                    id AS id,
                    CONVERT(varchar(10), date, 120) AS send_time,
                    supplierName AS supplier,
                    sku_id AS barcode,
                    name AS sku_name,
                    CAST(qty AS decimal(18,2)) AS qty,
                    CAST(price AS decimal(18,2)) AS unit_price,
                    CAST(price * qty AS decimal(18,2)) AS amount,
                    CAST(priceB AS decimal(18,2)) AS guess_unit_price,
                    CAST(priceB * qty AS decimal(18,2)) AS guess_amount,
                    remark,
                    io_id AS wms_pick_no,
                    warehouseName AS warehouse,
                    expressNo AS express_no,
                    expressName AS express_name,
                    CONVERT(varchar(10), io_date, 120) AS io_date,
                    labels,
                    creator_name AS creator,
                    '' AS title,
                    '' AS supplier_barcode,
                    '' AS original_barcode,
                    '' AS reconciler
                FROM finance_purchaseReturn
                $whereSql";

        $result = $this->runQuery($sql, $params, $page, $pageSize, 'send_time DESC, wms_pick_no DESC');

        return [
            'data'  => $result['data'],
            'total' => $result['total'],
        ];
    }

    public function returnReconciliationSummary(array $filters): array
    {
        $where  = [];
        $params = [];
        if (!empty($filters['supplier'])) {
            $where[]  = 'supplierName LIKE ?';
            $params[] = '%' . $filters['supplier'] . '%';
        }
        if (!empty($filters['date_from'])) {
            $where[]  = 'date >= ?';
            $params[] = $filters['date_from'];
        }
        if (!empty($filters['date_to'])) {
            $where[]  = 'date <= ?';
            $params[] = $filters['date_to'];
        }
        $whereSql = $where ? 'WHERE ' . implode(' AND ', $where) : '';

        $sql  = "SELECT
                    ISNULL(SUM(price * qty), 0)  AS total_amount,
                    ISNULL(SUM(priceB * qty), 0) AS total_guess_amount,
                    COUNT(*)                     AS total_count
                FROM finance_purchaseReturn $whereSql";
        $stmt = $this->db()->prepare($sql);
        $stmt->execute($params);
        $row = $stmt->fetch();

        return [
            'totalAmount'      => (float) $row['total_amount'],
            'totalGuessAmount' => (float) $row['total_guess_amount'],
            'totalCount'       => (int) $row['total_count'],
        ];
    }

    // ============================================================
    // 2. 发票扣款 — finance_invoiceDeduction (195行)
    // ============================================================
    public function invoiceDeductions(array $filters, int $page, int $pageSize): array
    {
        $where  = [];
        $params = [];

        if (!empty($filters['supplier'])) {
            $where[]  = 'supplier LIKE ?';
            $params[] = '%' . $filters['supplier'] . '%';
        }
        if (!empty($filters['month_from'])) {
            $where[]  = 'month >= ?';
            $params[] = $filters['month_from'];
        }
        if (!empty($filters['month_to'])) {
            $where[]  = 'month <= ?';
            $params[] = $filters['month_to'];
        }

        $whereSql = $where ? 'WHERE ' . implode(' AND ', $where) : '';

        $sql = "SELECT
                    id AS id,
                    CONVERT(varchar(7), month, 120) AS month_str,
                    '' AS category,
                    supplier AS payee,
                    supplier AS receiver,
                    '' AS board_factory,
                    CAST(0 AS decimal(18,2)) AS subsidy_fee,
                    remark,
                    CAST(price AS decimal(18,2)) AS price,
                    remark AS detail,
                    '' AS note,
                    personCharge AS person_charge,
                    CONVERT(varchar(19), createTime, 120) AS create_time,
                    creator
                FROM finance_invoiceDeduction
                $whereSql";

        return $this->runQuery($sql, $params, $page, $pageSize, 'month_str DESC, create_time DESC');
    }

    public function invoiceDeductionSummary(array $filters): array
    {
        $where  = [];
        $params = [];
        if (!empty($filters['supplier'])) {
            $where[]  = 'supplier LIKE ?';
            $params[] = '%' . $filters['supplier'] . '%';
        }
        $whereSql = $where ? 'WHERE ' . implode(' AND ', $where) : '';

        $sql  = "SELECT ISNULL(SUM(price), 0) AS total_price, COUNT(*) AS total_count FROM finance_invoiceDeduction $whereSql";
        $stmt = $this->db()->prepare($sql);
        $stmt->execute($params);
        $row  = $stmt->fetch();

        return [
            'totalPrice'  => (float) $row['total_price'],
            'totalCount'  => (int) $row['total_count'],
        ];
    }

    // ============================================================
    // 3. 赔偿明细 — fys_supplierPaymentSummary
    // ============================================================
    public function compensationDetails(array $filters, int $page, int $pageSize): array
    {
        [$whereSql, $bindings] = $this->compensationWhere($filters);
        $page = max($page, 1);
        $pageSize = min(max($pageSize, 1), 100);
        $offset = ($page - 1) * $pageSize;
        $total = (int) ($this->query->scalar(
            "SELECT COUNT(*) FROM [dbo].[fys_supplierPaymentSummary] WHERE $whereSql",
            $bindings,
        ) ?? 0);

        $rows = $this->query->select(
            "SELECT
                [id] AS id,
                [Month] AS month,
                [supplier] AS supplier,
                CAST([Totalindemnity] AS decimal(18,2)) AS amount,
                [reason] AS reason,
                [remarks] AS remark
            FROM [dbo].[fys_supplierPaymentSummary]
            WHERE $whereSql
            ORDER BY [Month] DESC, [id] DESC
            OFFSET $offset ROWS FETCH NEXT $pageSize ROWS ONLY",
            $bindings,
        );

        foreach ($rows as &$row) {
            $row['amount'] = (float) ($row['amount'] ?? 0);
        }
        unset($row);

        return ['data' => $rows, 'total' => $total];
    }

    public function compensationDetailSummary(array $filters): array
    {
        [$whereSql, $bindings] = $this->compensationWhere($filters);
        $row = $this->query->first(
            "SELECT
                ISNULL(SUM([Totalindemnity]), 0) AS total_amount,
                COUNT(*) AS total_count
            FROM [dbo].[fys_supplierPaymentSummary]
            WHERE $whereSql",
            $bindings,
        ) ?? [];

        return [
            'totalAmount' => (float) ($row['total_amount'] ?? 0),
            'totalCount'  => (int) ($row['total_count'] ?? 0),
        ];
    }

    /** @return array{0:string,1:array<int,string>} */
    private function compensationWhere(array $filters): array
    {
        $where = ['[Totalindemnity] IS NOT NULL', '[Totalindemnity] <> 0'];
        $bindings = [];

        if (! empty($filters['supplier'])) {
            $where[] = "[supplier] LIKE ? ESCAPE '\\'";
            $bindings[] = '%' . str_replace(
                ['\\', '%', '_'],
                ['\\\\', '\\%', '\\_'],
                trim((string) $filters['supplier']),
            ) . '%';
        }
        if (! empty($filters['month_from'])) {
            $where[] = '[Month] >= ?';
            $bindings[] = (string) $filters['month_from'];
        }
        if (! empty($filters['month_to'])) {
            $where[] = '[Month] <= ?';
            $bindings[] = (string) $filters['month_to'];
        }

        return [implode(' AND ', $where), $bindings];
    }

    // ============================================================
    // 4. 借支明细 — finance_advanceLoans (4行, 字段不足，部分列显示-)
    // ============================================================
    public function advanceDetails(array $filters, int $page, int $pageSize): array
    {
        $where  = [];
        $params = [];

        if (!empty($filters['supplier'])) {
            $where[]  = 'supplier LIKE ?';
            $params[] = '%' . $filters['supplier'] . '%';
        }
        if (!empty($filters['month_from'])) {
            $where[]  = 'month >= ?';
            $params[] = $filters['month_from'];
        }
        if (!empty($filters['month_to'])) {
            $where[]  = 'month <= ?';
            $params[] = $filters['month_to'];
        }

        $whereSql = $where ? 'WHERE ' . implode(' AND ', $where) : '';

        $sql = "SELECT
                    id AS id,
                    supplier,
                    '' AS contract_name,
                    CAST(price AS decimal(18,2)) AS advance_amount,
                    CAST(0 AS decimal(18,2)) AS actual_pay,
                    CAST(0 AS decimal(18,2)) AS month_deduct,
                    CAST(0 AS decimal(18,2)) AS should_deduct,
                    '' AS deduct_start_month,
                    '' AS deduct_end_month,
                    0  AS remain_periods,
                    CONVERT(varchar(7), month, 120) AS month_str,
                    '' AS loan_term,
                    remark,
                    '' AS is_paid,
                    CONVERT(varchar(7), month, 120) AS pay_month,
                    '' AS serial_no,
                    '' AS loan_agreement,
                    personCharge AS person_charge,
                    '' AS receipt_0,
                    '' AS receipt_1,
                    '' AS receipt_2,
                    CONVERT(varchar(19), createTime, 120) AS create_time,
                    creator
                FROM finance_advanceLoans
                $whereSql";

        return $this->runQuery($sql, $params, $page, $pageSize, 'month_str DESC, create_time DESC');
    }

    public function advanceDetailSummary(array $filters): array
    {
        $where  = [];
        $params = [];
        if (!empty($filters['supplier'])) {
            $where[]  = 'supplier LIKE ?';
            $params[] = '%' . $filters['supplier'] . '%';
        }
        $whereSql = $where ? 'WHERE ' . implode(' AND ', $where) : '';

        $sql  = "SELECT ISNULL(SUM(price), 0) AS total_amount, COUNT(*) AS total_count FROM finance_advanceLoans $whereSql";
        $stmt = $this->db()->prepare($sql);
        $stmt->execute($params);
        $row  = $stmt->fetch();

        return [
            'totalAmount' => (float) $row['total_amount'],
            'totalCount'  => (int) $row['total_count'],
        ];
    }

    // ============================================================
    // 5. 样品扣款 — finance_sampleDeduction (12行)
    // ============================================================
    public function sampleDeductions(array $filters, int $page, int $pageSize): array
    {
        $where  = [];
        $params = [];

        if (!empty($filters['supplier'])) {
            $where[]  = 'supplier LIKE ?';
            $params[] = '%' . $filters['supplier'] . '%';
        }
        if (!empty($filters['department'])) {
            $where[]  = 'department LIKE ?';
            $params[] = '%' . $filters['department'] . '%';
        }
        if (!empty($filters['creator'])) {
            $where[]  = 'creator LIKE ?';
            $params[] = '%' . $filters['creator'] . '%';
        }
        if (!empty($filters['sku_id'])) {
            $where[]  = 'sku_id LIKE ?';
            $params[] = '%' . $filters['sku_id'] . '%';
        }
        if (!empty($filters['date_from'])) {
            $where[]  = 'finishTime >= ?';
            $params[] = $filters['date_from'];
        }
        if (!empty($filters['date_to'])) {
            $where[]  = 'finishTime <= ?';
            $params[] = $filters['date_to'];
        }

        $whereSql = $where ? 'WHERE ' . implode(' AND ', $where) : '';

        $sql = "SELECT
                    id AS id,
                    CONVERT(varchar(10), finishTime, 120) AS finish_time,
                    department,
                    creator,
                    sku_id,
                    skuName,
                    CAST(num AS decimal(18,2)) AS num,
                    supplier,
                    purchase,
                    productCode,
                    CAST(shippingFee AS decimal(18,2)) AS shipping_fee,
                    CAST(costPrice AS decimal(18,2)) AS cost_price,
                    CAST(totalAmount AS decimal(18,2)) AS total_amount,
                    CAST(estimatedPrice AS decimal(18,2)) AS estimated_price,
                    CAST(estimatedPriceAll AS decimal(18,2)) AS estimated_price_all,
                    '' AS remark,
                    businessId,
                    CONVERT(varchar(19), updateAt, 120) AS update_time
                FROM finance_sampleDeduction
                $whereSql";

        return $this->runQuery($sql, $params, $page, $pageSize, 'finish_time DESC');
    }

    public function sampleDeductionSummary(array $filters): array
    {
        $where  = [];
        $params = [];
        if (!empty($filters['supplier'])) {
            $where[]  = 'supplier LIKE ?';
            $params[] = '%' . $filters['supplier'] . '%';
        }
        $whereSql = $where ? 'WHERE ' . implode(' AND ', $where) : '';

        $sql = "SELECT
                    ISNULL(SUM(totalAmount), 0)     AS total_amount,
                    ISNULL(SUM(estimatedPriceAll), 0) AS total_estimate,
                    COUNT(*)                        AS total_count
                FROM finance_sampleDeduction $whereSql";
        $stmt = $this->db()->prepare($sql);
        $stmt->execute($params);
        $row  = $stmt->fetch();

        return [
            'totalAmount'    => (float) $row['total_amount'],
            'totalEstimate'  => (float) $row['total_estimate'],
            'totalCount'     => (int) $row['total_count'],
        ];
    }

    // ============================================================
    // 6. 送货未定价 — pm_unOrderDetails (265452行)
    // ============================================================
    public function deliveryUnpriced(array $filters, int $page, int $pageSize): array
    {
        $where  = [];
        $params = [];

        if (!empty($filters['supplier'])) {
            $where[]  = 'supplier LIKE ?';
            $params[] = '%' . $filters['supplier'] . '%';
        }
        if (!empty($filters['warehouse'])) {
            $where[]  = 'warehouse LIKE ?';
            $params[] = '%' . $filters['warehouse'] . '%';
        }
        if (!empty($filters['purchase'])) {
            $where[]  = 'purchase LIKE ?';
            $params[] = '%' . $filters['purchase'] . '%';
        }
        if (!empty($filters['barcode'])) {
            $where[]  = 'barCode LIKE ?';
            $params[] = '%' . $filters['barcode'] . '%';
        }
        if (!empty($filters['express_no'])) {
            $where[]  = 'expressNo LIKE ?';
            $params[] = '%' . $filters['express_no'] . '%';
        }
        if (!empty($filters['date_from'])) {
            $where[]  = 'date >= ?';
            $params[] = $filters['date_from'];
        }
        if (!empty($filters['date_to'])) {
            $where[]  = 'date <= ?';
            $params[] = $filters['date_to'];
        }

        $whereSql = $where ? 'WHERE ' . implode(' AND ', $where) : '';

        $sql = "SELECT
                    Id AS id,
                    CONVERT(varchar(10), date, 120) AS date,
                    purchase,
                    warehouse,
                    supplier,
                    transactionNo,
                    distributionNo,
                    expressNo,
                    sku,
                    barCode,
                    skuName,
                    CONVERT(varchar(19), distributionDate, 120) AS distribution_date,
                    CONVERT(varchar(10), shipDate, 120) AS ship_date,
                    expressName
                FROM pm_unOrderDetails
                $whereSql";

        return $this->runQuery($sql, $params, $page, $pageSize, 'date DESC, id DESC');
    }

    public function deliveryUnpricedSummary(array $filters): array
    {
        $where  = [];
        $params = [];
        if (!empty($filters['supplier'])) {
            $where[]  = 'supplier LIKE ?';
            $params[] = '%' . $filters['supplier'] . '%';
        }
        $whereSql = $where ? 'WHERE ' . implode(' AND ', $where) : '';

        $sql  = "SELECT COUNT(*) AS total_count FROM pm_unOrderDetails $whereSql";
        $stmt = $this->db()->prepare($sql);
        $stmt->execute($params);
        $row  = $stmt->fetch();

        return [
            'totalCount' => (int) $row['total_count'],
        ];
    }

    // ============================================================
    // 7. 退货未定价 — finance_purchaseReturn WHERE priceB = 0 (35928行)
    // ============================================================
    public function returnUnpriced(array $filters, int $page, int $pageSize): array
    {
        $where  = ['(priceB = 0 OR priceB IS NULL)'];
        $params = [];

        if (!empty($filters['supplier'])) {
            $where[]  = 'supplierName LIKE ?';
            $params[] = '%' . $filters['supplier'] . '%';
        }
        if (!empty($filters['warehouse'])) {
            $where[]  = 'warehouseName LIKE ?';
            $params[] = '%' . $filters['warehouse'] . '%';
        }
        if (!empty($filters['sku_id'])) {
            $where[]  = 'sku_id LIKE ?';
            $params[] = '%' . $filters['sku_id'] . '%';
        }
        if (!empty($filters['express_no'])) {
            $where[]  = 'expressNo LIKE ?';
            $params[] = '%' . $filters['express_no'] . '%';
        }
        if (!empty($filters['date_from'])) {
            $where[]  = 'date >= ?';
            $params[] = $filters['date_from'];
        }
        if (!empty($filters['date_to'])) {
            $where[]  = 'date <= ?';
            $params[] = $filters['date_to'];
        }

        $whereSql = 'WHERE ' . implode(' AND ', $where);

        $sql = "SELECT
                    id AS id,
                    CONVERT(varchar(10), date, 120) AS send_time,
                    supplierName AS supplier,
                    sku_id AS barcode,
                    name AS sku_name,
                    CAST(qty AS decimal(18,2)) AS qty,
                    CAST(price AS decimal(18,2)) AS unit_price,
                    CAST(price * qty AS decimal(18,2)) AS amount,
                    CAST(ISNULL(priceB, 0) AS decimal(18,2)) AS guess_unit_price,
                    CAST(ISNULL(priceB, 0) * qty AS decimal(18,2)) AS guess_amount,
                    remark,
                    io_id AS wms_pick_no,
                    warehouseName AS warehouse,
                    expressNo AS express_no,
                    expressName AS express_name,
                    CONVERT(varchar(10), io_date, 120) AS io_date,
                    labels,
                    creator_name AS creator
                FROM finance_purchaseReturn
                $whereSql";

        return $this->runQuery($sql, $params, $page, $pageSize, 'send_time DESC');
    }

    public function returnUnpricedSummary(array $filters): array
    {
        $where  = ['(priceB = 0 OR priceB IS NULL)'];
        $params = [];
        if (!empty($filters['supplier'])) {
            $where[]  = 'supplierName LIKE ?';
            $params[] = '%' . $filters['supplier'] . '%';
        }
        $whereSql = 'WHERE ' . implode(' AND ', $where);

        $sql = "SELECT
                    ISNULL(SUM(price * qty), 0) AS total_amount,
                    COUNT(*)                    AS total_count
                FROM finance_purchaseReturn $whereSql";
        $stmt = $this->db()->prepare($sql);
        $stmt->execute($params);
        $row  = $stmt->fetch();

        return [
            'totalAmount' => (float) $row['total_amount'],
            'totalCount'  => (int) $row['total_count'],
        ];
    }

    // ============================================================
    // 筛选器选项
    // ============================================================
    public function filterOptionsForReturn(): array
    {
        $suppliers = $this->fetchDistinct('SELECT DISTINCT supplierName FROM finance_purchaseReturn WHERE supplierName IS NOT NULL ORDER BY supplierName');
        $warehouses = $this->fetchDistinct('SELECT DISTINCT warehouseName FROM finance_purchaseReturn WHERE warehouseName IS NOT NULL ORDER BY warehouseName');

        return compact('suppliers', 'warehouses');
    }

    public function filterOptionsForInvoice(): array
    {
        $suppliers = $this->fetchDistinct('SELECT DISTINCT supplier FROM finance_invoiceDeduction WHERE supplier IS NOT NULL ORDER BY supplier');

        return ['suppliers' => $suppliers];
    }

    public function filterOptionsForCompensation(): array
    {
        $suppliers = array_column($this->query->select(
            'SELECT DISTINCT TOP 200 [supplier] AS value '
            . 'FROM [dbo].[fys_supplierPaymentSummary] '
            . 'WHERE [Totalindemnity] IS NOT NULL AND [Totalindemnity] <> 0 AND [supplier] IS NOT NULL '
            . 'ORDER BY [supplier]',
        ), 'value');

        return ['suppliers' => $suppliers];
    }

    public function filterOptionsForAdvance(): array
    {
        $suppliers = $this->fetchDistinct('SELECT DISTINCT supplier FROM finance_advanceLoans WHERE supplier IS NOT NULL ORDER BY supplier');

        return ['suppliers' => $suppliers];
    }

    public function filterOptionsForDeliveryUnpriced(): array
    {
        $suppliers  = $this->fetchDistinct('SELECT DISTINCT supplier FROM pm_unOrderDetails WHERE supplier IS NOT NULL ORDER BY supplier');
        $warehouses = $this->fetchDistinct('SELECT DISTINCT warehouse FROM pm_unOrderDetails WHERE warehouse IS NOT NULL ORDER BY warehouse');
        $purchases  = $this->fetchDistinct('SELECT DISTINCT purchase FROM pm_unOrderDetails WHERE purchase IS NOT NULL ORDER BY purchase');

        return compact('suppliers', 'warehouses', 'purchases');
    }

    public function filterOptionsForReturnUnpriced(): array
    {
        $suppliers  = $this->fetchDistinct("SELECT DISTINCT supplierName FROM finance_purchaseReturn WHERE (priceB = 0 OR priceB IS NULL) AND supplierName IS NOT NULL ORDER BY supplierName");
        $warehouses = $this->fetchDistinct("SELECT DISTINCT warehouseName FROM finance_purchaseReturn WHERE (priceB = 0 OR priceB IS NULL) AND warehouseName IS NOT NULL ORDER BY warehouseName");

        return compact('suppliers', 'warehouses');
    }

    public function filterOptionsForSample(): array
    {
        $suppliers  = $this->fetchDistinct('SELECT DISTINCT supplier FROM finance_sampleDeduction WHERE supplier IS NOT NULL ORDER BY supplier');
        $departments = $this->fetchDistinct('SELECT DISTINCT department FROM finance_sampleDeduction WHERE department IS NOT NULL ORDER BY department');
        $creators   = $this->fetchDistinct('SELECT DISTINCT creator FROM finance_sampleDeduction WHERE creator IS NOT NULL ORDER BY creator');

        return compact('suppliers', 'departments', 'creators');
    }

    private function fetchDistinct(string $sql): array
    {
        $rows = $this->db()->query($sql)->fetchAll(PDO::FETCH_COLUMN);
        return array_values(array_filter($rows, fn ($v) => $v !== null && $v !== ''));
    }

    // ============================================================
    // 8. 其他扣款补款 — fys_supplierPaymentSummary WHERE other != 0 (460行)
    // ============================================================
    public function otherAdjustments(array $filters, int $page, int $pageSize): array
    {
        $where  = ['(other IS NOT NULL AND other != 0)'];
        $params = [];

        if (!empty($filters['supplier'])) {
            $where[]  = 'supplier LIKE ?';
            $params[] = '%' . $filters['supplier'] . '%';
        }
        if (!empty($filters['month_from'])) {
            $where[]  = 'Month >= ?';
            $params[] = $filters['month_from'];
        }
        if (!empty($filters['month_to'])) {
            $where[]  = 'Month <= ?';
            $params[] = $filters['month_to'];
        }

        $whereSql = 'WHERE ' . implode(' AND ', $where);

        $sql = "SELECT
                    id AS id,
                    Month AS month_str,
                    supplier,
                    CAST(other AS decimal(18,2)) AS supplement_amount,
                    reason AS supplement_reason,
                    remarks AS remark,
                    mark AS remark2,
                    checker AS person_charge
                FROM fys_supplierPaymentSummary
                $whereSql";

        $result = $this->runQuery($sql, $params, $page, $pageSize, 'month_str DESC, supplier');
        foreach ($result['data'] as &$row) {
            $row['project'] = '其他扣款补款';
        }
        unset($row);

        return $result;
    }

    public function otherAdjustmentsSummary(array $filters): array
    {
        $where  = ['(other IS NOT NULL AND other != 0)'];
        $params = [];
        if (!empty($filters['supplier'])) {
            $where[]  = 'supplier LIKE ?';
            $params[] = '%' . $filters['supplier'] . '%';
        }
        $whereSql = 'WHERE ' . implode(' AND ', $where);

        $sql = "SELECT
                    ISNULL(SUM(other), 0) AS total_amount,
                    COUNT(*)              AS total_count
                FROM fys_supplierPaymentSummary $whereSql";
        $stmt = $this->db()->prepare($sql);
        $stmt->execute($params);
        $row  = $stmt->fetch();

        return [
            'totalAmount' => (float) $row['total_amount'],
            'totalCount'  => (int) $row['total_count'],
        ];
    }

    // ============================================================
    // 9. 代发快递 — fys_express_courier_settlement (940行)
    // ============================================================
    public function dropshippingExpress(array $filters, int $page, int $pageSize): array
    {
        $where  = ['(is_delete = 0 OR is_delete IS NULL)'];
        $params = [];

        if (!empty($filters['supplier'])) {
            $where[]  = 'courier_company_name LIKE ?';
            $params[] = '%' . $filters['supplier'] . '%';
        }
        if (!empty($filters['express_name'])) {
            $where[]  = 'expressname LIKE ?';
            $params[] = '%' . $filters['express_name'] . '%';
        }
        if (!empty($filters['month_from'])) {
            $where[]  = 'month >= ?';
            $params[] = $filters['month_from'];
        }
        if (!empty($filters['month_to'])) {
            $where[]  = 'month <= ?';
            $params[] = $filters['month_to'];
        }

        $whereSql = 'WHERE ' . implode(' AND ', $where);

        $sql = "SELECT
                    id AS id,
                    reconciliation_person,
                    month AS month_str,
                    courier_company_name AS supplier,
                    CAST(ISNULL(waybill, 0) AS decimal(18,2)) AS express_freight,
                    CAST(ISNULL(courier_provided_amount, 0) AS decimal(18,2)) AS express_account,
                    CAST(ISNULL(replenish_courier, 0) AS decimal(18,2)) AS replenish_freight,
                    CAST(ISNULL(confirmed_amount, 0) AS decimal(18,2)) AS replenish_account,
                    CAST(ISNULL(reconciliation_difference, 0) AS decimal(18,2)) AS return_fee,
                    CAST(ISNULL(compensation_amount, 0) AS decimal(18,2)) AS intercept_fee,
                    CAST(ISNULL(other_replenishment, 0) AS decimal(18,2)) AS change_address_fee,
                    CAST(ISNULL(corporate_payment_amount, 0) AS decimal(18,2)) AS turnover_fee,
                    CAST(ISNULL(personal_payment_amount, 0) AS decimal(18,2)) AS overlong_fee,
                    CAST(ISNULL(payable_amount, 0) AS decimal(18,2)) AS total_freight,
                    status AS remark,
                    expressname AS express_name,
                    file_status AS remark2,
                    creator,
                    CONVERT(varchar(19), create_time, 120) AS create_time
                FROM fys_express_courier_settlement
                $whereSql";

        return $this->runQuery($sql, $params, $page, $pageSize, 'month_str DESC, express_name');
    }

    public function dropshippingExpressSummary(array $filters): array
    {
        $where  = ['(is_delete = 0 OR is_delete IS NULL)'];
        $params = [];
        if (!empty($filters['supplier'])) {
            $where[]  = 'courier_company_name LIKE ?';
            $params[] = '%' . $filters['supplier'] . '%';
        }
        $whereSql = 'WHERE ' . implode(' AND ', $where);

        $sql = "SELECT
                    ISNULL(SUM(payable_amount), 0) AS total_amount,
                    COUNT(*)                       AS total_count
                FROM fys_express_courier_settlement $whereSql";
        $stmt = $this->db()->prepare($sql);
        $stmt->execute($params);
        $row  = $stmt->fetch();

        return [
            'totalAmount' => (float) $row['total_amount'],
            'totalCount'  => (int) $row['total_count'],
        ];
    }

    public function filterOptionsForOtherAdjustments(): array
    {
        $suppliers = $this->fetchDistinct("SELECT DISTINCT supplier FROM fys_supplierPaymentSummary WHERE (other IS NOT NULL AND other != 0) AND supplier IS NOT NULL ORDER BY supplier");

        return ['suppliers' => $suppliers];
    }

    public function filterOptionsForDropshippingExpress(): array
    {
        $suppliers    = $this->fetchDistinct("SELECT DISTINCT courier_company_name FROM fys_express_courier_settlement WHERE (is_delete = 0 OR is_delete IS NULL) AND courier_company_name IS NOT NULL ORDER BY courier_company_name");
        $expressNames = $this->fetchDistinct("SELECT DISTINCT expressname FROM fys_express_courier_settlement WHERE (is_delete = 0 OR is_delete IS NULL) AND expressname IS NOT NULL ORDER BY expressname");

        return compact('suppliers', 'expressNames');
    }
}