<?php

namespace addons\WangDianTong\common\expand\sdk\wangdian;

use addons\WangDianTong\common\enums\WangDianTongEnum;
use GuzzleHttp\Client;
use GuzzleHttp\Exception\ClientException;
use Psr\Http\Message\ResponseInterface;
use yii\helpers\Json;

abstract class AbstractRequest
{

    /**
     * @var bool 是否为旗舰版
     */
    protected $is_flagship = false;

    /**
     * @var string
     */
    protected $route = '';

    /**
     * @var array
     */
    protected $config = [];

    protected $method = 'post';

    /**
     * @var string
     */
    protected $error = '';

    /**
     * @var ResponseInterface
     */
    protected $response;

    /**
     * @var array
     */
    protected $data = [];

    /**
     * @var Client
     */
    protected $client;

    /**
     * @var array
     */
    protected $headers = [];

    public function __construct(array $config)
    {
        $this->config = $config;
        $url = $this->is_flagship ? WangDianTongEnum::FS_BASE_URLS[(int)$this->config['env']] : WangDianTongEnum::BASE_URLS[(int)$this->config['env']];
        $this->client = new Client([
            'base_uri'  => $url,
            'headers'   => $this->headers,
            'timeout'   => WangDianTongEnum::TIMEOUT
        ]);
    }

    /**
     * @param ModelInterface|null $model
     * @return $this
     */
    public function send(ModelInterface $model = null)
    {
        return $this->is_flagship ? $this->flagshipSend($model) : $this->enterpriseSend($model);
    }

    protected function enterpriseSend(ModelInterface $model = null)
    {
        try {
            $this->data = !empty($model) ? array_merge($this->data, $model->toArray()) : $this->data;

            //  生成签名
            $this->data['sign'] = $this->makeSign();
            try {
                $params = $this->method == 'get' ?
                    ['query' => $this->data] :
                    ['form_params' => $this->data];
                $this->response = $this->client->request($this->method, $this->route, $params);
            } catch (ClientException $e) {
                $ret =  Json::decode($e->getResponse()->getBody()->getContents());
                $this->error = $ret['msg'] ?? $e->getMessage();
            }
        } catch (\Throwable $e) {
            $this->error = $e->getMessage();
        }
        return $this;
    }

    protected function flagshipSend(ModelInterface $model = null)
    {
        try {
            $body = [];
            if (!empty($model)) {
                $body = $model->toArray();
                //  公共参数
                $global_params = ['page_no', 'page_size', 'calc_total'];
                foreach ($global_params as $param) {
                    if (isset($body[$param])) {
                        $this->data[$param] = $body[$param];
                        unset($body[$param]);
                    }
                }

                $body = $model->sort();
            }

            $this->data['body'] = json_encode($body, JSON_UNESCAPED_UNICODE);
            $this->data = array_merge($this->data, $this->flagshipGlobalParams());

            //  生成签名
            $this->data['sign'] = $this->flagshipMakeSign();
            try {
                unset($this->data['body']);
                $this->response = $this->client->post("/openapi?" . http_build_query($this->data), [
                    'timeout'   => 30,
                    'body'      => json_encode($body, JSON_UNESCAPED_UNICODE),
                    'headers'   => [
                        'Content-Type: application/json;charset=UTF-8'
                    ],
//                    'debug'     => true
                ]);
            } catch (ClientException $e) {
//                echo $e->getResponse()->getBody()->getContents();
                $ret =  Json::decode($e->getResponse()->getBody()->getContents());
                $this->error = $ret['msg'] ?? $e->getMessage();
            }
        } catch (\Throwable $e) {
            $this->error = $e->getMessage();
        }
        return $this;
    }

    /**
     * @return mixed|null
     * @throws \Exception
     */
    public function toArray()
    {
        try {
            $res = $this->response->getBody()->getContents();
            return Json::decode($res);
        } catch (\Exception $e) {
            throw new \Exception($e->getMessage());
        }
    }

    /**
     * @return ResponseInterface
     */
    public function getResponse()
    {
        return $this->response;
    }

    /**
     * @return array
     */
    public function getData(): array
    {
        return $this->data;
    }

    protected function flagshipMakeSign()
    {
        date_default_timezone_set("Asia/Shanghai");
        $this->data['sid'] = $this->config['app_sid'];
        $this->data['key'] = $this->config['app_key'];
        $this->data['timestamp'] = time() - 1325347200;
        ksort($this->data);
        $arr = [];
        $tmp = explode(':', $this->config['app_secret_key']);
        $arr[] = $tmp[0] ?? '';
        foreach($this->data as $key => $val)
        {
            if($key == 'sign') continue;
            $arr[] = $key;
            $arr[] = $val;
        }
        $arr[] = $tmp[0] ?? '';
        return md5(implode('', $arr));
    }

    /**
     * @return string
     */
    protected function makeSign(): string
    {
        try {
            $this->data['sid'] = $this->config['app_sid'];
            $this->data['appkey'] = $this->config['app_key'];
            $this->data['timestamp'] = time();
            ksort($this->data);
            $arr = array();
            foreach($this->data as $key => $val)
            {
                if($key == 'sign') continue;
                if(count($arr))
                    $arr[] = ';';
                $arr[] = sprintf("%02d", iconv_strlen($key, 'UTF-8'));
                $arr[] = '-';
                $arr[] = $key;
                $arr[] = ':';
                $arr[] = sprintf("%04d", iconv_strlen($val, 'UTF-8'));
                $arr[] = '-';
                $arr[] = $val;
            }
            return md5(implode('', $arr) . $this->config['app_secret_key']);
        } catch (\Exception $e) {
        }
        return '';
    }

    /**
     * @return $this
     */
    public function post()
    {
        $this->method = 'post';
        return $this;
    }

    /**
     * @return $this
     */
    public function get()
    {
        $this->method = 'get';
        return $this;
    }

    /**
     * @return string
     */
    public function getError()
    {
        return $this->error;
    }

    public function __set($name, $value)
    {
        $this->data[$name] = $value;
    }

    public function __get($name)
    {
        return $this->data[$name] ?? null;
    }

    /**
     * 旗舰版公共参数
     * @return array
     */
    protected function flagshipGlobalParams()
    {
        $tmp = explode(':', $this->config['app_secret_key']);
        return [
            'salt'      => $tmp[1] ?? '',
            'method'    => $this->route,
            'v'         => '1.0',
        ];
    }
}