<?php

// +----------------------------------------------------------------------
// | ThinkAdmin
// +----------------------------------------------------------------------
// | 版权所有 2014~2017 广州楚才信息科技有限公司 [ http://www.cuci.cc ]
// +----------------------------------------------------------------------
// | 官方网站: http://think.ctolog.com
// +----------------------------------------------------------------------
// | 开源协议 ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | github开源项目：https://github.com/zoujingli/ThinkAdmin
// +----------------------------------------------------------------------

namespace service;

use app\wechat\service\FansService;
use think\Exception;

/**
 * 微信数据服务
 * Class WechatService
 * @package service
 * @author Anyon <zoujingli@qq.com>
 * @date 2017/03/22 15:32
 *
 * @method \WeChat\Card card() static 卡券管理
 * @method \WeChat\Custom custom() static 客服消息处理
 * @method \WeChat\Limit limit() static 接口调用频次限制
 * @method \WeChat\Media media() static 微信素材管理
 * @method \WeChat\Menu menu() static 微信素材管理
 * @method \WeChat\Oauth oauth() static 微信网页授权
 * @method \WeChat\Pay pay() static 微信支付商户
 * @method \WeChat\Product product() static 商店管理
 * @method \WeChat\Qrcode qrcode() static 二维码管理
 * @method \WeChat\Receive receive() static 公众号推送管理
 * @method \WeChat\Scan scan() static 扫一扫接入管理
 * @method \WeChat\Script script() static 微信前端支持
 * @method \WeChat\Shake shake() static 揺一揺周边
 * @method \WeChat\Tags tags() static 用户标签管理
 * @method \WeChat\Template template() static 模板消息
 * @method \WeChat\User user() static 微信粉丝管理
 * @method \WeChat\Wifi wifi() static 门店WIFI管理
 * @method object wechat() static 第三方微信工具
 * @method object config() static 第三方配置工具
 */
class WechatService
{

    /**
     * 获取微信实例ID
     * @param string $name 实例对象名称
     * @return SoapService|string
     * @throws \think\Exception
     * @throws \think\exception\PDOException
     */
    public static function instance($name)
    {
        switch (strtolower(sysconf('wechat_type'))) {
            case 'api':
                $config = [
                    'token'          => sysconf('wechat_token'),
                    'appid'          => sysconf('wechat_appid'),
                    'appsecret'      => sysconf('wechat_appsecret'),
                    'encodingaeskey' => sysconf('wechat_encodingaeskey'),
                    'mch_id'         => sysconf('wechat_mch_id'),
                    'mch_key'        => sysconf('wechat_partnerkey'),
                    'ssl_cer'        => sysconf('wechat_cert_cert'),
                    'ssl_key'        => sysconf('wechat_cert_key'),
                    'cachepath'      => env('cache_path') . 'wechat' . DIRECTORY_SEPARATOR,
                ];
                $class = '\\WeChat\\' . ucfirst(strtolower($name));
                if (class_exists($class)) {
                    return new $class($config);
                }
                throw new Exception("Class '{$class}' not found");
            case 'thr':
            default:
                list($appid, $appkey) = [sysconf('wechat_thr_appid'), sysconf('wechat_thr_appkey')];
                $token = strtolower("{$name}-{$appid}-{$appkey}");
                $location = config('wechat.service_url') . "/wechat/api.client/soap/{$token}.html";
                $params = ['uri' => strtolower($name), 'location' => $location, 'trace' => true];
                return new SoapService(null, $params);
        }
    }

    /**
     * 获取微信网页JSSDK
     * @param null|string $url 签名SDK
     * @return array
     * @throws \think\Exception
     * @throws \WeChat\Exceptions\InvalidResponseException
     * @throws \WeChat\Exceptions\LocalCacheException
     * @throws \think\exception\PDOException
     */
    public static function webJsSDK($url = null)
    {
        switch (strtolower(sysconf('wechat_type'))) {
            case 'api':
                return WechatService::script()->getJsSign(is_null($url) ? request()->url(true) : $url);
            case 'thr':
            default:
                return WechatService::wechat()->jsSign(is_null($url) ? request()->url(true) : $url);
        }
    }

    /**
     * 初始化进入授权
     * @param int $fullMode 授权公众号模式
     * @return array
     * @throws \think\Exception
     * @throws \think\exception\PDOException
     */
    public static function webOauth($fullMode = 0)
    {
        list($appid, $request) = [self::getAppid(), app('request')];
        list($openid, $fansinfo) = [session("{$appid}_openid"), session("{$appid}_fansinfo")];
        if ((empty($fullMode) && !empty($openid)) || (!empty($fullMode) && !empty($fansinfo))) {
            return ['openid' => $openid, 'fansinfo' => $fansinfo];
        }
        switch (strtolower(sysconf('wechat_type'))) {
            case 'api':
                $wechat = self::oauth();
                if ($request->get('state') !== $appid) {
                    $selfUrl = $request->url(true);
                    $typeSns = empty($fullMode) ? 'snsapi_base' : 'snsapi_userinfo';
                    $params = (strpos($selfUrl, '?') === false ? '?' : '&') . 'rcode=' . encode($selfUrl);
                    redirect($wechat->getOauthRedirect($selfUrl . $params, $appid, $typeSns), [], 301)->send();
                }
                $token = $wechat->getOauthAccessToken();
                session("{$appid}_openid", empty($token['openid']) ? null : $token['openid']);
                if (!empty($fullMode) && !empty($token['openid']) && !empty($token['access_token'])) {
                    $fansinfo = $wechat->getUserInfo($token['access_token'], $token['openid']);
                    session("{$appid}_fansinfo", empty($fansinfo) ? null : $fansinfo);
                    empty($fansinfo) || FansService::set($fansinfo);
                }
                if (($rcode = $request->get('rcode', false))) {
                    redirect(decode($rcode), [], 301)->send();
                } else {
                    throw new Exception('网页授权异常，请稍候再试！', '503');
                }
            case 'thr':
            default:
                $result = self::wechat()->oauth(session_id(), $request->url(true), $fullMode);
                session("{$appid}_openid", empty($result['openid']) ? null : $result['openid']);
                session("{$appid}_fansinfo", empty($result['fans']) ? null : $result['fans']);
                if ((empty($fullMode) && !empty($result['openid'])) || (!empty($fullMode) && !empty($result['fans']))) {
                    empty($result['fans']) || FansService::set($result['fans']);
                    return ['openid' => $result['openid'], 'fansinfo' => $result['fans']];
                }
                if (!empty($result['url'])) { // 授权跳转
                    redirect($result['url'], [], 301)->send();
                }
        }
    }

    /**
     * 获取当前公众号的AppId
     * @return bool|string
     * @throws \think\Exception
     * @throws \think\exception\PDOException
     */
    public static function getAppid()
    {
        switch (strtolower(sysconf('wechat_type'))) {
            case 'api':
                return sysconf('wechat_appid');
            case 'thr':
                return sysconf('wechat_thr_appid');
            default:
                return '';
        }
    }

    /**
     * 魔术静态方法实现对象
     * @param string $name
     * @param array $arguments
     * @return SoapService
     * @throws \think\Exception
     * @throws \think\exception\PDOException
     */
    public static function __callStatic($name, $arguments)
    {
        return self::instance($name);
    }

}