<?php

namespace app\admin\controller;
use app\admin\model\User;
use app\common\server\UrlServer;
use think\facade\Url;

class BulletinBoard extends AdminBase
{

    //看板统计
    public function index()
    {
        return $this->fetch();
    }


    //地图上显示注册用户位置
    public function map()
    {
        return $this->fetch();
    }

    public function getUserMap()
    {
        // 查询有经纬度的用户
        $userArray = User::where('latitude', '<>', '')
            ->where('longitude', '<>', '')
            ->field('id,nickname,mobile,avatar,longitude,latitude')
            ->select();
        // 格式化数据，转换为前端期望的字段名
        $result = [];
        foreach ($userArray as $user) {
            // 处理头像URL，使用代理接口避免CORS问题
            $avatar = '';
            if (!empty($user['avatar'])) {
                $originalUrl = UrlServer::getFileUrl($user['avatar']);
                // 去掉JSON编码时产生的转义反斜杠
                $originalUrl = str_replace('\\/', '/', $originalUrl);
                
                // 如果URL是跨域的，使用代理接口
                $currentDomain = $this->request->domain();
                if (strpos($originalUrl, $currentDomain) === false) {
                    // 跨域，使用代理（手动构建URL避免双重编码）
                    $avatar = $this->request->domain() . '/admin/bulletin_board/proxyImage?url=' . rawurlencode($originalUrl);
                } else {
                    // 同域，直接使用
                    $avatar = $originalUrl;
                }
            }
            
            $result[] = [
                'id' => $user['id'] ?? 0,
                'lng' => floatval($user['longitude'] ?? 0),
                'lat' => floatval($user['latitude'] ?? 0),
                'name' => $user['nickname'] ?? '',
                'contact' => $user['nickname'] ?? '', // 兼容两种字段名
                'mobile' => $user['mobile'] ?? '',
                'phone' => $user['mobile'] ?? '', // 兼容 telephone/phone
                'telephone' => $user['mobile'] ?? '',
                'avatar' => $avatar
            ];
        }

        return $this->_success('获取成功', $result);
    }

    /**
     * 图片代理接口，解决CORS跨域问题
     */
    public function proxyImage()
    {
        $url = $this->request->get('url', '');
        if (empty($url)) {
            header('HTTP/1.1 404 Not Found');
            exit;
        }

        // 解码URL
        $url = urldecode($url);
        
        // 验证URL格式
        if (!filter_var($url, FILTER_VALIDATE_URL)) {
            header('HTTP/1.1 400 Bad Request');
            exit;
        }

        // 只允许图片格式
        $allowedExtensions = ['jpg', 'jpeg', 'png', 'gif', 'webp'];
        $extension = strtolower(pathinfo(parse_url($url, PHP_URL_PATH), PATHINFO_EXTENSION));
        if (!in_array($extension, $allowedExtensions)) {
            header('HTTP/1.1 403 Forbidden');
            exit;
        }

        // 获取图片
        $context = stream_context_create([
            'http' => [
                'method' => 'GET',
                'timeout' => 10,
                'header' => [
                    'User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36'
                ]
            ]
        ]);

        $imageData = @file_get_contents($url, false, $context);
        
        if ($imageData === false) {
            header('HTTP/1.1 404 Not Found');
            exit;
        }

        // 设置响应头
        header('Content-Type: image/' . ($extension === 'jpg' ? 'jpeg' : $extension));
        header('Cache-Control: public, max-age=3600');
        header('Access-Control-Allow-Origin: *');
        header('Access-Control-Allow-Methods: GET');
        
        // 输出图片
        echo $imageData;
        exit;
    }
}