<?php
/**
 * Copyright 2012-2026 ShopeX (https://www.shopex.cn)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * 自动任务入口类
 *
 * @author kamisama.xia@gmail.com
 * @version 0.1
 */

class taskmgr_rpc_entrance{

    /**
     *
     * 静态私有变量系统级参数
     * @var array
     */
    static private $_sysParams = array();

    /**
     *
     * 静态私有变量应用级参数
     * @var array
     */
    static private $_appParams = array();

    /**
     *
     * 自动任务接口入口函数
     * @param array $params
     */
    public function service($params){
        $result = array('rsp'=>'fail','msg'=>'');

        //接收所有参数
        $this->setParams($params);

        //检查系统级参数
        if(!$this->checkSysParams($params)){
            $result['msg'] = 'no params';
            echo json_encode($result);
            exit;
        }

        //签名验证
        if(!$this->validate($params)){
            $result['msg'] = 'valid error';
            echo json_encode($result);
            exit;
        }

        //检查任务是否合法
        $allow_tasks = taskmgr_whitelist::get_all_task_list();
        if(isset($allow_tasks[self::$_sysParams['task_type']]['method'])){

            $className = $allow_tasks[self::$_sysParams['task_type']]['method'];
            if(class_exists($className)){

                $obj = kernel::single($className);
                if(method_exists($obj,'process')){
                    if($res = $obj->process(self::$_appParams, $error_msg)){
                        $result['rsp'] = 'succ';
                        $result['msg'] = $error_msg;
                        echo json_encode($result,JSON_UNESCAPED_UNICODE);
                        exit;
                    }else{
                        $result['msg'] = $error_msg ? $error_msg : 'code error';
                        echo json_encode($result,JSON_UNESCAPED_UNICODE);
                        exit;
                    }
                }else{
                    $result['msg'] = 'no process method';
                    echo json_encode($result,JSON_UNESCAPED_UNICODE);
                    exit;
                }
            }else{
                $result['msg'] = 'no process lib';
                echo json_encode($result,JSON_UNESCAPED_UNICODE);
                exit;
            }

        }else{
            $result['msg'] = 'no defined task';
            echo json_encode($result);
            exit;
        }
    }

    /**
     *
     * 接收传入参数兼容post数据
     * @param unknown_type $params
     */
    private function setParams(&$params){
        //只认post方式过来的参数
        return $params = $_POST;
    }

    /**
     *
     * 检查系统级参数函数
     * @param array $params
     */
    private function checkSysParams($params){
        if(empty($params['task_type']) || empty($params['taskmgr_sign'])){
            return false;
        }

        self::$_sysParams['task_type'] = $params['task_type'];
        return true;
    }

    /**
     *
     * 验证签名函数（支持新旧token平滑切换）
     * @param array $params
     */
    private function validate($params){

        $sign = $params['taskmgr_sign'];
        unset($params['taskmgr_sign']);
        
        // 使用新的验证方法，支持新旧token同时验证
        if(!taskmgr_rpc_sign::validate_sign($params, $sign)){
            return false;
        }else{
            unset($params['task_type']);

            self::$_appParams = $params;
            return true;
        }
    }

}