<?php

namespace MpApi\Controller;

use Think\Controller;
use Firebase\JWT\JWT;
use Firebase\JWT\Key;

class PublicController extends Controller
{
	//****************
	//构造函数
	//****************
	protected $tokenShop_id;
	public function __construct()
	{
		header("Access-Control-Allow-Origin: " . C('LimitApi')); //请求域名限制
		header('Access-Control-Allow-Headers:Token'); //token请求头
		// token 验证
		$server = isset($_SERVER) ? $_SERVER : "";
		$token = isset($server['HTTP_TOKEN']) ? $server['HTTP_TOKEN'] : null;
		// 如果 token 不存在，可以返回错误信息
		if (!$token) {
			echo json_encode(array('status' => -1, 'msg' => 'Token 不存在或无效!'));
			exit();
		}
		$jwtKey = C('jwtKey'); // jwt密钥
		try {
			// 使用密钥和 HS256 算法对 JWT 进行解码
			$jwt = JWT::decode($token, new Key($jwtKey, 'HS256'));
			$res_token = (array) $jwt; // 将解码后的对象转换为数组
			// token过期
			if (empty($res_token)) {
				echo json_encode(array('status' => -1, 'msg' => '帐号认证过期!'));
				exit();
			}
			// token验证通过 获取shop_id
			$this->tokenShop_id = $res_token['shop_id'];
		} catch (Exception $e) {
			// 捕获解码过程中可能的异常，并返回错误信息
			echo json_encode(array('status' => -1, 'msg' => 'Token 无效: ' . $e->getMessage()));
			exit();
		}
	}
	/**
	 * @description: 总管理员 可接收任何shop_id 非总管理员 只可以调用自身shop_id 否则会中断
	 */
	protected function isPower()
	{
		if ($this->tokenShop_id != C('powerId')) { //非总管理员
			if ($this->tokenShop_id != $_REQUEST['shop_id']) { // 提交的不是自己shopid退出
				echo json_encode(array('status' => 0, 'msg' => '没有权限'));
				exit;
			}
		}
	}
	/**
	 * @description: 远程调取页面 求情API
	 */
	protected function apiUrl($url, $data = null)
	{
		$ch = curl_init();
		$header = array("Accept-Charset: utf-8"); // 将字符串改为数组
		curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
		curl_setopt($ch, CURLOPT_URL, $url);
		curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
		curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
		curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (compatible; MSIE 5.01; Windows NT 5.0)');
		curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
		curl_setopt($ch, CURLOPT_AUTOREFERER, 1);

		curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
		curl_setopt($ch, CURLOPT_POSTFIELDS, $data);

		$output = curl_exec($ch);
		curl_close($ch);
		if ($output) {
			return $output;
		} else {
			return false;
		}
	}
	/**
	 * @Description: 获取token
	 * @Return: token
	 */
	protected function getAccessToken()
	{
		$appId = C("weixin")['appid'];
		$secret = C("weixin")['secret'];
		//创建请求数据
		$url_token = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={$appId}&secret={$secret}";
		$data_result = $this->apiUrl($url_token);
		$jsoninfo = json_decode($data_result, true);
		return $jsoninfo["access_token"];
	}
	/**
	 * @description: 中文字符串截取
	 * @param {*} $title 要截取的文本
	 * @param {*} $title 截取长度
	 * @return {*} 截取完成后的文本
	 */
	protected function str_substr($title, $length)
	{
		$encoding = 'utf-8';
		if (mb_strlen($title, $encoding) > $length) {
			$title = mb_substr($title, 0, $length, $encoding) . '...';
		}
		return $title;
	}
	/**
	 * @description: 文件上传公共方法
	 * @param {file} $file 表单文件
	 * @param {array} $exts 类型限制 ps: array('png', 'jpg', 'jpeg', 'gif')
	 * @param {file} $path 上传保存的路径
	 * @return {*} 上传信息
	 */
	protected function upload_images($file, $exts, $path)
	{
		$upload = new \Think\Upload(); // 实例化上传类
		$upload->maxSize   =  2097152; // 设置附件上传大小2M
		$upload->exts      =  $exts; // 设置附件上传类型
		$upload->rootPath  =  './Data/UploadFiles/'; // 设置附件上传根目录
		$upload->savePath  =  ''; // 设置附件上传（子）目录
		$upload->saveName = time() . mt_rand(100000, 999999); //文件名称创建时间戳+随机数
		$upload->autoSub  = true; //自动使用子目录保存上传文件 默认为true
		$upload->subName  = $path; //子目录创建方式，采用数组或者字符串方式定义
		// 上传文件 
		$info = $upload->uploadOne($file);
		if (!$info) { // 上传错误提示错误信息
			return $upload->getError();
		} else { // 上传成功 获取上传文件信息
			return $info;
		}
	}
	/**
	 * @description: element 图片上传控件 接收
	 */
	public function upImgFile()
	{
		if ($this->tokenShop_id) {
			$upfile = $this->upload_images($_FILES["file"], array('png', 'jpg', 'jpeg', 'gif', 'svg'), 'temp');
			if (is_array($upfile)) {
				echo json_encode(array('status' => 1, 'msg' => '上传成功', 'data' => $upfile['savename']));
			} else {
				echo json_encode(array('status' => 0, 'msg' => $upfile));
			}
		} else {
			echo json_encode(array('status' => 0, 'msg' => '登录异常'));
		}
	}
}