<?php
/**
 * 媒体数据编辑接口  POST /api/media/update.php
 * 入参：id + 白名单字段（含商业属性）
 */
require_once __DIR__ . '/../common/db.php';
require_once __DIR__ . '/../common/response.php';
require_once __DIR__ . '/../common/auth.php';
require_once __DIR__ . '/../common/logger.php';
require_once __DIR__ . '/../common/helpers.php';
require_once __DIR__ . '/../common/completeness.php';
require_once __DIR__ . '/../common/duplicate_check.php';

checkAjax();
checkPermission('media');

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

$pdo = DB::getInstance()->getPdo();
$check = $pdo->prepare("SELECT * FROM social_accounts WHERE id = ?");
$check->execute([$id]);
$old = $check->fetch();
if (!$old) {
    Response::error('媒体账号不存在');
}

$data = extractFields(MEDIA_FIELDS);
unset($data['owner_type'], $data['owner_id']); // 归属关系不允许改

// 唯一性校验（排除自身）：社媒账号ID（同平台）/ 手机 / 邮箱 / 主页链接
if (isset($_POST['platform']) || isset($_POST['account_id']) || isset($_POST['profile_url'])) {
    $dup = checkSingleAccountDuplicate(
        $pdo,
        $_POST['platform'] ?? ($old['platform'] ?? ''),
        $_POST['account_id'] ?? ($old['account_id'] ?? ''),
        $_POST['profile_url'] ?? ($old['profile_url'] ?? ''),
        [$id]
    );
    if ($dup) Response::duplicate($dup);
}

if (!empty($data)) {
    [$sets, $params] = buildUpdate($data);
    $params[] = $id;
    $pdo->prepare("UPDATE social_accounts SET $sets WHERE id = ?")->execute($params);
}

// 更新商业属性（存在则更新，不存在则插入）
$attr = extractFields(MEDIA_ATTR_FIELDS);
if (!empty($attr)) {
    $exists = $pdo->prepare("SELECT COUNT(*) FROM media_commercial_attributes WHERE social_account_id = ?");
    $exists->execute([$id]);
    if ((int)$exists->fetchColumn() > 0) {
        [$attrSets, $attrParams] = buildUpdate($attr);
        $attrParams[] = $id;
        $pdo->prepare("UPDATE media_commercial_attributes SET $attrSets WHERE social_account_id = ?")->execute($attrParams);
    } else {
        $attr['social_account_id'] = $id;
        [$attrSql, $attrParams] = buildInsert($attr);
        $pdo->prepare("INSERT INTO media_commercial_attributes $attrSql")->execute($attrParams);
    }
}

// 完整度检查：媒体账号 + 商业属性
updateMediaIncomplete($pdo, $id);

logCurrent('update', 'media', 'social_accounts', $id, ['before' => $old, 'after' => $data, 'attr' => $attr]);
Response::success(null, '更新成功');