<?php
/**
 * 企业产品列表接口  GET /api/company/products.php
 * v1.0.18：返回产品基础字段（产品品类/基本定位/包含系列/状态/更新日期）+ EAV 参数值（JSON）
 * 入参：company_id（必填）/ page / limit
 */
require_once __DIR__ . '/../common/db.php';
require_once __DIR__ . '/../common/response.php';
require_once __DIR__ . '/../common/auth.php';

checkPermission('company');

$companyId = (int)($_REQUEST['company_id'] ?? 0);
if ($companyId <= 0) {
    Response::error('参数错误', 400);
}

[$page, $limit] = pageParams(5);

$pdo = DB::getInstance()->getPdo();

$chk = $pdo->prepare("SELECT COUNT(*) FROM companies WHERE id = ?");
$chk->execute([$companyId]);
if ((int)$chk->fetchColumn() === 0) {
    Response::error('企业不存在');
}

$stmt = $pdo->prepare("SELECT COUNT(*) FROM company_products WHERE company_id = ? AND is_active = 1");
$stmt->execute([$companyId]);
$total = (int)$stmt->fetchColumn();

$offset = ($page - 1) * $limit;
$stmt = $pdo->prepare(
    "SELECT id, category_name, category_description, positioning, series, is_core, is_active, created_at, updated_at
     FROM company_products
     WHERE company_id = ? AND is_active = 1
     ORDER BY is_core DESC, id DESC
     LIMIT $limit OFFSET $offset"
);
$stmt->execute([$companyId]);
$list = $stmt->fetchAll();

// 批量取 EAV 参数值（每个产品一个 JSON：attr_id => 值）
if ($list) {
    $ids = array_column($list, 'id');
    $in  = implode(',', array_fill(0, count($ids), '?'));
    $valStmt = $pdo->prepare(
        "SELECT v.product_id, a.attr_name, a.attr_type, a.unit,
                v.value_string, v.value_number, v.value_boolean, v.value_date
         FROM company_products_attr_value v
         INNER JOIN company_products_attr a ON a.id = v.attr_id
         WHERE v.product_id IN ($in)"
    );
    $valStmt->execute($ids);
    $values = [];
    foreach ($valStmt as $v) {
        $values[$v['product_id']][] = [
            'attr_name' => $v['attr_name'],
            'attr_type' => $v['attr_type'],
            'unit'      => $v['unit'],
            'value'     => $v['value_string'] !== null ? $v['value_string']
                          : ($v['value_number'] !== null ? rtrim(rtrim(sprintf('%.4f', $v['value_number']), '0'), '.')
                          : ($v['value_boolean'] !== null ? ($v['value_boolean'] ? '是' : '否')
                          : ($v['value_date'] ?? ''))),
        ];
    }
    foreach ($list as &$row) {
        $row['attrs'] = $values[$row['id']] ?? [];
    }
    unset($row);
}

Response::success(['list' => $list, 'total' => $total, 'page' => $page, 'limit' => $limit]);