<?php


namespace App\Service;


use App\RedisModel;

class MiniProgramService
{
    const ACCESS_TOKEN_RDS = 'Playlet::MiniProgramToken_';

    /**
     * 生成小程序SchemeUrl
     * */
    public static function createSchemeUrl($appid, $appSecret, $queryParam)
    {
        # 获取accessToken
        $accessToken = MiniProgramService::getAccessToken($appid, $appSecret);
        if(empty($accessToken)) {
            return false;
        }

        $postData = [
            'jump_wxa' => [
                'path' => '',
                'query' => empty($queryParam) ? '' : http_build_query($queryParam),
            ],
            'expire_type' => 1,
            'expire_interval' => 30,
        ];

        $requestUri = config('miniProgram.get_url_scheme');
        $requestUri .= $accessToken;

        $response = HttpService::httpPost($requestUri, json_encode($postData));
        $responseData = json_decode($response, true);

        return $responseData;
    }

    /**
     * 生成小程序LinkUrl
     * */
    public static function createLinkUrl($appid, $appSecret)
    {
        # 获取accessToken
        $accessToken = MiniProgramService::getAccessToken($appid, $appSecret);
        if(empty($accessToken)) {
            return false;
        }

        $postData = [
            'path' => '',
            'query' => '',
            'expire_type' => 1,
            'expire_interval' => 30,
        ];

        $requestUri = config('miniProgram.get_url_link');
        $requestUri .= $accessToken;

        $response = HttpService::httpPost($requestUri, json_encode($postData));
        $responseData = json_decode($response, true);

        return $responseData;
    }

    /**
     * 获取小程序accessToken
     * */
    public static function getAccessToken($appid, $appSecret)
    {
        $rdsKey = MiniProgramService::ACCESS_TOKEN_RDS . $appid;
        $accessToken = RedisModel::get($rdsKey);
        if(empty($accessToken)) {
            $responseData = MiniProgramService::refreshToken($appid, $appSecret);
            if(isset($responseData['errcode']) && $responseData['errcode']) {
                # 发送报警信息，记录日志

                return false;
            }

            $accessToken = $responseData['access_token'] ?? false;
            $expiresIn = $responseData['expires_in'] ?? -1;
            RedisModel::set($rdsKey, $accessToken);
            RedisModel::expire($rdsKey, $expiresIn);
        }

        return $accessToken;
    }

    /**
     * 刷新accessToken
     * */
    public static function refreshToken($appid, $appSecret)
    {
        $requestUri = config('miniProgram.get_token');
        $requestUri .= 'appid='.$appid.'&secret='.$appSecret;

        $response = HttpService::httpGet($requestUri);
        $responseData = json_decode($response, true);

        return $responseData;
    }
}