<?php

namespace app\event;

use Exception;
use ParseError;
use Throwable;
use Error;
use libs\db\Db;
use libs\listener\Event;

class ExtScriptEvent extends Event
{
    public function extScriptBegin($data)
    {
        // 判断计算脚本的开关是否开启
        if(!config('mes.calculation_script_switch')){
            return [];
        }

        $process_code = $data['process_code'];

        $class_name_arr = explode('\\', $data['class_name']);

        $class_arr = preg_split("/(?<=[a-z])(?![a-z])/", $class_name_arr[count($class_name_arr) - 1], -1, PREG_SPLIT_NO_EMPTY);

        $class_str = strtolower(implode('_', $class_arr));

        $script_path = config('mes.calculation_script_url') . "{$process_code}/{$class_str}/begin.script";

        /**
         * 注意：如果脚本需要返回数据，那么需要在脚本里面把内容放到$response['data_return']中统一返回
         */
        $response = [
            'ext_script_code' => 0,
            'ext_script_msg'  => '脚本执行成功',
            'data_return'    => [],
        ];

        // 获取脚本是否启用
        $sql = sprintf(
            "SELECT status
                FROM hf_mes_calculation_script
                WHERE process_code='%s' AND interface_code='%s' AND interface_position='begin' LIMIT 1;",
            $process_code,
            $class_str
        );
        $ret = Db::fetch($sql);
        if(empty($ret)){
            $response['ext_script_code'] = 0;
            $response['ext_script_msg']  = '脚本不存在配置数据，请先在后台配置';
            return $response;
        }
        if($ret['status'] == 0){
            $response['ext_script_code'] = 201;
            $response['ext_script_msg']  = '脚本的状态禁用中';
            return $response;
        }

        if (!@fopen($script_path, 'r')) {
            $response['ext_script_code'] = 201;
            $response['ext_script_msg']  = '脚本文件不存在';
            return $response;
        }

        try {
            // 使用file_get_contents()函数读取文件内容
            $scriptContent = file_get_contents($script_path);
            if (isJson($scriptContent)) {
                $scriptContent = json_decode($scriptContent, true);
                if (isset($scriptContent['code']) && $scriptContent['code'] == 404) {
                    throw new Exception('脚本文件不存在');
                }
            }

            // 检查文件是否成功读取
            if ($scriptContent !== false) {
                @trigger_error('flag', E_USER_NOTICE);

                // 执行脚本
                eval($scriptContent);

                // 获取 Notice 错误
                $error = error_get_last();
                if ($error['message'] != 'flag') {
                    $response['data_return'] = $error['message'];

                }
            } else {
                // 如果文件读取失败，输出错误信息
                throw new Exception('无法读取脚本内容');
            }
        } catch (ParseError $p) {
            $response['ext_script_code'] = 201;
            $response['ext_script_msg'] = '脚本执行失败, 错误：' . $p->getMessage();
        } catch (Throwable $e){
            $response['ext_script_code'] = 201;
            $response['ext_script_msg'] = '脚本执行失败, 错误：' . $e->getMessage();
        } catch (Exception $exp) {
            $response['ext_script_code'] = 201;
            $response['ext_script_msg']  = '脚本执行失败, 错误：' . $exp->getMessage();
        } catch (Error $err) {
            $response['ext_script_code'] = 201;
            $response['ext_script_msg']    = '脚本执行失败, 错误：' . $err->getMessage();
        }

        return $response;
    }

    public function extScriptEnd($data)
    {
        // 判断计算脚本的开关是否开启
        if(!config('mes.calculation_script_switch')){
            return [];
        }

        $process_code = $data['process_code'];

        $class_name_arr = explode('\\', $data['class_name']);

        $class_arr = preg_split("/(?<=[a-z])(?![a-z])/", $class_name_arr[count($class_name_arr) - 1], -1, PREG_SPLIT_NO_EMPTY);

        $class_str = strtolower(implode('_', $class_arr));

        $script_path = config('mes.calculation_script_url') . "{$process_code}/{$class_str}/end.script";

        /**
         * 注意：如果脚本需要返回数据，那么需要在脚本里面把内容放到$response['data_return']中统一返回
         */
        $response = [
            'ext_script_code' => 0,
            'ext_script_msg'  => '脚本执行成功',
            'data_return'    => [],
        ];

        // 获取脚本是否启用
        $sql = sprintf(
            "SELECT status
                FROM hf_mes_calculation_script
                WHERE process_code='%s' AND interface_code='%s' AND interface_position='end' LIMIT 1;",
            $process_code,
            $class_str
        );
        $ret = Db::fetch($sql);
        if(empty($ret)){
            $response['ext_script_code'] = 0;
            $response['ext_script_msg']  = '脚本不存在配置数据，请先在后台配置';
            return $response;
        }
        if($ret['status'] == 0){
            $response['ext_script_code'] = 201;
            $response['ext_script_msg']  = '脚本的状态禁用中';
            return $response;
        }

        if (!@fopen($script_path, 'r')) {
            $response['ext_script_code'] = 201;
            $response['ext_script_msg']  = '脚本文件不存在';
            return $response;
        }

        try {
            // 使用file_get_contents()函数读取文件内容
            $scriptContent = file_get_contents($script_path);
            if (isJson($scriptContent)) {
                $scriptContent = json_decode($scriptContent, true);
                if (isset($scriptContent['code']) && $scriptContent['code'] == 404) {
                    throw new Exception('脚本文件不存在');
                }
            }

            // 检查文件是否成功读取
            if ($scriptContent !== false) {
                @trigger_error('flag', E_USER_NOTICE);

                // 执行脚本
                eval($scriptContent);

                // 获取 Notice 错误
                $error = error_get_last();
                if ($error['message'] != 'flag') {
                    $response['data_return'] = $error['message'];
                }
            } else {
                // 如果文件读取失败，输出错误信息
                throw new Exception('无法读取脚本内容');
            }
        } catch (ParseError $p) {
            $response['ext_script_code'] = 201;
            $response['ext_script_msg'] = '脚本执行失败, 错误：' . $p->getMessage();
        } catch (Throwable $e){
            $response['ext_script_code'] = 201;
            $response['ext_script_msg'] = '脚本执行失败, 错误：' . $e->getMessage();
        } catch (Exception $exp) {
            $response['ext_script_code'] = 201;
            $response['ext_script_msg']  = '脚本执行失败, 错误：' . $exp->getMessage();
        } catch (Error $err) {
            $response['ext_script_code'] = 201;
            $response['ext_script_msg']    = '脚本执行失败, 错误：' . $err->getMessage();
        }

        return $response;
    }
}