<?php

class Subflow
{
    private $form_key;
    private $seq = 0;
    public $current_assigner;
    private $real_id;
    private $receive_date;
    private $pre_finish_date;
    #会签 状态 S0001
    const   SUSPEND_STATE = "S0001";

    public function __construct(Flow $flow)
    {
        if ($flow->getFormKey() == null) {
            $this->form_key = Flow::getNewFormKey();
        } else {
            $this->form_key = $flow->getFormKey();
        }
    }

    function getFormKey()
    {
        return $this->form_key;
    }

    public static function delete($formKey = null)
    {
        DB::query("DELETE subflow WHERE Form_Key = '" . $formKey . "'");
    }

    /**
     * @param $userId
     * @return $this
     */
    public function setCurrentUser($userId)
    {
        $this->current_assigner = $userId;
        return $this;
    }

    /**
     *变更当前签核人员
     * @param $formKey
     * @param $userId
     */
    public static function updateCurrentUser($formKey, $userId)
    {
        $where = "form_key = '" . $formKey . "'";;
        DB::update_table("subflow", array(
            "current_assigner" => $userId,
        ), $where);

    }

    /**
     * 获取当前签核者
     * @param $formKey
     * @return userId
     */
    public static function getCurrentUser($formKey)
    {
        list($currentAssigner) = DB::fields("SELECT current_assigner
                                         FROM subflow where form_key ='$formKey'");

        return $currentAssigner;
    }

    /***
     *
     *关闭签核
     * @param null $formKey
     */
    public static function close($formKey = null)
    {
        $where = "form_key = '" . $formKey . "'";;
        DB::update_table("subflow", array(
            "current_assigner" => '00000'
        ), $where);
    }

    /**
     *
     * @param null $formKey
     */
    public static function suspend($formKey = null)
    {

        self::updateRealId($formKey, self::getCurrentUser($formKey));
        $where = "form_key = '" . $formKey . "'";
        DB::update_table("subflow", array(
            "current_assigner" => self::SUSPEND_STATE,

        ), $where);
    }

    /**
     *
     * @param $formKey
     * @param $userId
     */
    public static function updateRealId($formKey, $userId)
    {
        $where = "form_key = '" . $formKey . "'";;
        DB::update_table("subflow", array(
            "real_id" => $userId,
        ), $where);
    }

    /**
     *
     * @param $formKey
     * @param $userId
     * @return
     */
    public static function getRealId($formKey)
    {
        list($real_id) = DB::fields("SELECT real_id
                                         FROM subflow where form_key ='$formKey'");
        return $real_id;

    }

    /**
     * 插入记录
     * @return int
     */
    public function insert()
    {
        list($cnt) = DB::fields("select  count(*) from subflow where from_key='" . $this->form_key . "' ");
        if ($cnt == 0) {
            DB::insert_table("subflow", array(
                "form_key" => $this->form_key,
                "seq" => $this->seq + 1,
                "current_assigner" => $this->current_assigner,
                "real_id" => $this->real_id
            ));
            return 1;
        }
        return -1;

    }

    public function __toString()
    {
        return json_encode($this);
    }
}