<?php
namespace app\controller\admin;

use app\BaseController;
use app\common\AnalyticsEventLabels;
use think\facade\Db;
use think\facade\Request;

/**
 * 小程序埋点（企业/平台管理端，受企业用户范围约束）
 */
class Analytics extends BaseController
{
    /**
     * 单用户旅程：与 superadmin.Analytics/userJourney 数据结构一致，
     * 额外校验目标 userId 属于当前管理员可见企业（user_profile）。
     *
     * GET /api/v1/admin/analytics/user-journey?userId=&days=30
     */
    public function userJourney()
    {
        $auth = $this->request->user ?? null;
        if (!$auth) {
            return error('未登录', 401);
        }
        if (!in_array($auth['role'] ?? '', ['admin', 'enterprise_admin'])) {
            return error('无权限访问', 403);
        }

        $userId = (int) Request::param('userId', 0);
        if ($userId <= 0) {
            return error('userId 不能为空', 400);
        }

        $enterpriseId = $auth['enterpriseId'] ?? null;
        if (!$enterpriseId) {
            $adminRow = Db::name('users')->where('id', $auth['userId'] ?? 0)->find();
            $enterpriseId = $adminRow['enterpriseId'] ?? null;
        }

        if ($enterpriseId) {
            $has = Db::name('user_profile')
                ->where('userId', $userId)
                ->where('enterpriseId', (int) $enterpriseId)
                ->find();
            if (!$has) {
                return error('无权限查看该用户', 403);
            }
        }

        $days = min(180, max(1, (int) Request::param('days', 30)));
        $since = date('Y-m-d H:i:s', time() - $days * 86400);
        $page = max(1, (int) Request::param('page', 1));
        $pageSize = min(100, max(1, (int) Request::param('pageSize', 20)));
        $offset = ($page - 1) * $pageSize;

        try {
            $baseQ = Db::name('analytics_events')
                ->where('userId', $userId)
                ->where('createdAt', '>=', $since);
            $total = (int) (clone $baseQ)->count();
            $rows = (clone $baseQ)
                ->order('id', 'desc')
                ->limit($offset, $pageSize)
                ->select()
                ->toArray();

            foreach ($rows as &$r) {
                if (!empty($r['propsJson'])) {
                    $decoded = json_decode($r['propsJson'], true);
                    $r['props'] = is_array($decoded) ? $decoded : null;
                } else {
                    $r['props'] = null;
                }
                unset($r['propsJson']);
            }
            unset($r);
            $rows = AnalyticsEventLabels::withCn($rows);

            return success([
                'userId'   => $userId,
                'days'     => $days,
                'list'     => $rows,
                'total'    => $total,
                'page'     => $page,
                'pageSize' => $pageSize,
            ]);
        } catch (\Throwable $e) {
            return success([
                'userId'       => $userId,
                'days'         => $days,
                'list'         => [],
                'total'        => 0,
                'page'         => $page,
                'pageSize'     => $pageSize,
                'tableMissing' => true,
            ]);
        }
    }
}