<?php
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// | Niucloud-admin 企业快速开发的saas管理平台
// +----------------------------------------------------------------------
// | 官方网址：https://www.niucloud-admin.com
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// | niucloud团队 版权所有 开源版本可自由商用
// +----------------------------------------------------------------------
// | Author: Niucloud Team
// +----------------------------------------------------------------------

namespace core\util;

use think\facade\Config;
use think\facade\Queue as ThinkQueue;
use think\facade\Log;

/**
 * Class Queue
 * @package core\util
 * @method $this do(string $do) 设置任务执行方法
 * @method $this job(string $job) 设置任务执行类名
 * @method $this errorCount(int $errorCount) 执行失败次数
 * @method $this data(...$data) 执行数据
 * @method $this secs(int $secs) 延迟执行秒数
 * @method $this log($log) 记录日志
 */
class Queue
{

    /**
     * 错误信息
     * @var string
     */
    protected $error;

    /**
     * 设置错误信息
     * @param string|null $error
     * @return bool
     */
    protected function setError(?string $error = null)
    {
        $this->error = $error ?: '未知错误';
        return false;
    }

    /**
     * 获取错误信息
     * @return string
     */
    public function getError()
    {
        $error = $this->error;
        $this->error = null;
        return $error;
    }

    /**
     * 任务执行
     * @var string
     */
    protected $do = 'doJob';

    /**
     * 默认任务执行方法名
     * @var string
     */
    protected $defaultDo;

    /**
     * 任务类名
     * @var string
     */
    protected $job;

    /**
     * 错误次数
     * @var int
     */
    protected $errorCount = 3;

    /**
     * 数据
     * @var array|string
     */
    protected $data;

    /**
     * 队列名
     * @var null
     */
    protected $queueName = null;

    /**
     * 延迟执行秒数
     * @var int
     */
    protected $secs = 0;

    /**
     * 记录日志
     * @var string|callable|array
     */
    protected $log;

    /**
     * @var array
     */
    protected $rules = ['do', 'data', 'errorCount', 'job', 'secs', 'log'];

    /**
     * @var static
     */
    protected static $instance;

    /**
     * Queue constructor.
     */
    protected function __construct()
    {
        $this->defaultDo = $this->do;
    }

    /**
     * @return static
     */
    public static function instance()
    {
        if (is_null(self::$instance)) {
            self::$instance = new static();
        }
        return self::$instance;
    }

    /**
     * @param string $queueName
     * @return $this
     */
    public function setQueueName(string $queueName)
    {
        $this->queueName = $queueName;
        return $this;
    }

    /**
     * 放入消息队列
     * @param array|null $data
     * @return mixed
     */
    public function push(?array $data = null)
    {
        if (!$this->job) {
            return $this->setError('需要执行的队列类必须存在');
        }
        $jodValue = $this->getValues($data);
        //todo 队列扩展策略调度,
        $res = ThinkQueue::{$this->action()}(...$jodValue);
        if (!$res) {
            $res = ThinkQueue::{$this->action()}(...$jodValue);
            if (!$res) {
                Log::error('加入队列失败，参数：' . json_encode($this->getValues($data)));
            }
        }
        $this->clean();
        return $res;
    }

    /**
     * 清除数据
     */
    public function clean()
    {
        $this->secs = 0;
        $this->data = [];
        $this->log = null;
        $this->queueName = null;
        $this->errorCount = 3;
        $this->do = $this->defaultDo;
    }

    /**
     * 获取任务方式
     * @return string
     */
    protected function action()
    {
        return $this->secs ? 'later' : 'push';
    }

    /**
     * 获取参数
     * @param $data
     * @return array
     */
    protected function getValues($data)
    {
        $jobData['data'] = $data ?: $this->data;
        $jobData['do'] = $this->do;
        $jobData['errorCount'] = $this->errorCount;
        $jobData['log'] = $this->log;
        if ($this->do != $this->defaultDo) {
            $this->job .= '@' . Config::get('queue.prefix', 'eb_') . $this->do;
        }
        if ($this->secs) {
            return [$this->secs, $this->job, $jobData, $this->queueName];
        } else {
            return [$this->job, $jobData, $this->queueName];
        }
    }

    /**
     * @param $name
     * @param $arguments
     * @return $this
     */
    public function __call($name, $arguments)
    {
        if (in_array($name, $this->rules)) {
            if ($name === 'data') {
                $this->{$name} = $arguments;
            } else {
                $this->{$name} = $arguments[0] ?? null;
            }
            return $this;
        } else {
            throw new \RuntimeException('Method does not exist' . __CLASS__ . '->' . $name . '()');
        }
    }
}