<?php
include APPPATH.'/models/Model_process.php';
trait HasProcessTrait
{
    /**
     * @var Process
     */
    protected $currentProcess;



    /**
     * @param Flow $flow
     * @return array
     */
    private function processAttribute($flow,$order)
    {
        return [
            'flow_id' => $flow['id'],
            'order_id' =>$order['id'] ,
            'state'=>Model_Process::STATUS_PROCESSING,
            'created_at'=>time(),
            'updated_at'=>time(),
        ];
    }

    /**
     * @param Flow $flow
     * @return Process
     * @throws \Exception
     */
    protected function createProcess($flow,$order)
    {
        $attr=$this->processAttribute($flow,$order);
        $process = new Model_Process();
        $processId=$process->insert($attr);
        if($processId){
            $process->read($processId);
            $process->initStatus($flow);
            return true;
        }
        return false;
        return $process;

    }

    /**
     * @return HasMany
     */
    public function process($orderid)
    {
        $process = new Model_Process();
       return $process->find('order_id='.$orderid);
        return $this->hasMany(Process::class, 'model_id')->where('model_type', $this->getMorphClass());
    }

    /**
     * 当前的流程
     * @return Process
     */
    public function currentProcess()
    {
        if (!isset($this->currentProcess)) {
            if ($this->process->isEmpty()) {
                return null;
            }

            $this->currentProcess = $this->process->where('state', 'processing')->first();
        }
        return $this->currentProcess;
    }
}