<?php
/**
 * 媒体数据列表接口  GET/POST /api/media/list.php
 * 参数：page / limit / keyword / platform / certification_type / account_level / owner_type / is_active
 * 数据源：social_accounts JOIN media_commercial_attributes
 */
require_once __DIR__ . '/../common/db.php';
require_once __DIR__ . '/../common/response.php';
require_once __DIR__ . '/../common/auth.php';

checkPermission('media');

[$page, $limit] = pageParams();
$keyword = trim($_REQUEST['keyword'] ?? '');
$platform = trim($_REQUEST['platform'] ?? '');
$certType = trim($_REQUEST['certification_type'] ?? '');
$level    = trim($_REQUEST['account_level'] ?? '');
$ownerType = trim($_REQUEST['owner_type'] ?? '');
$active   = isset($_REQUEST['is_active']) && $_REQUEST['is_active'] !== '' ? (int)$_REQUEST['is_active'] : null;

$where  = ['sa.is_active = 1'];
$params = [];
if ($active !== null) {
    $where = ['sa.is_active = ?'];
    $params = [$active];
}
if ($keyword !== '') {
    $where[] = "(sa.account_id LIKE ? OR sa.profile_url LIKE ? OR sa.owner_id IN (
        SELECT p.id FROM persons p WHERE p.full_name LIKE ?
        UNION SELECT c.id FROM companies c WHERE c.display_name LIKE ?
    ))";
    $like = "%$keyword%";
    array_push($params, $like, $like, $like, $like);
}
if ($platform !== '') { $where[] = 'sa.platform = ?'; $params[] = $platform; }
if ($certType !== '') { $where[] = 'mca.certification_type = ?'; $params[] = $certType; }
if ($level !== '') { $where[] = 'mca.account_level = ?'; $params[] = $level; }
if ($ownerType !== '') { $where[] = 'sa.owner_type = ?'; $params[] = $ownerType; }
$whereSql = implode(' AND ', $where);

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

$stmt = $pdo->prepare(
    "SELECT COUNT(*) FROM social_accounts sa
     LEFT JOIN media_commercial_attributes mca ON mca.social_account_id = sa.id
     WHERE $whereSql"
);
$stmt->execute($params);
$total = (int)$stmt->fetchColumn();

$offset = ($page - 1) * $limit;
$stmt = $pdo->prepare(
    "SELECT sa.id, sa.owner_type, sa.owner_id, sa.platform, sa.account_id, sa.profile_url,
            sa.remark, sa.is_primary, sa.is_active, sa.created_at,
            mca.account_level, mca.content_categories, mca.follower_count, mca.avg_read_count,
            mca.certification_type, mca.special_requirements, mca.media_remark,
            CASE sa.owner_type
                WHEN 'person' THEN (SELECT p.full_name FROM persons p WHERE p.id = sa.owner_id)
                WHEN 'company' THEN (SELECT c.display_name FROM companies c WHERE c.id = sa.owner_id)
                ELSE NULL END AS owner_name
     FROM social_accounts sa
     LEFT JOIN media_commercial_attributes mca ON mca.social_account_id = sa.id
     WHERE $whereSql
     ORDER BY sa.id DESC
     LIMIT $limit OFFSET $offset"
);
$stmt->execute($params);
$list = $stmt->fetchAll();

// 供前端筛选下拉使用：平台/认证类型/等级 字典
$dict = [
    'platforms'            => $pdo->query("SELECT DISTINCT platform FROM social_accounts WHERE is_active = 1 ORDER BY platform")->fetchAll(PDO::FETCH_COLUMN),
    'certification_types'  => $pdo->query("SELECT DISTINCT certification_type FROM media_commercial_attributes WHERE certification_type IS NOT NULL AND certification_type <> '' ORDER BY certification_type")->fetchAll(PDO::FETCH_COLUMN),
    'account_levels'       => $pdo->query("SELECT DISTINCT account_level FROM media_commercial_attributes ORDER BY account_level")->fetchAll(PDO::FETCH_COLUMN),
];

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