<?php

namespace refill;

class transfer
{
    private $mMchid2Infos;
    public function __construct()
    {
        $this->load();
    }

    private static $stInstance = null;
    public static function instance()
    {
        if (self::$stInstance == null) {
            self::$stInstance = new transfer();
        }

        return self::$stInstance;
    }

    public function load()
    {
        $mch_checker = function ($mchid) {
            $item = Model()->table('merchant')->field('mchid,admin_id')->where(['mchid' => $mchid])->find();
            return intval($item['admin_id']);
        };

        $this->mMchid2Infos = [];
        $i = 0;
        while (true)
        {
            $start = $i * 1000;
            $items = Model()->table('merchant')->field('mchid,transfer_cfg')->order('mchid asc')->limit("{$start},1000")->select();
            if(empty($items)) {
                return;
            }
            $i++;

            foreach ($items as $item)
            {
                $transfer_cfg = $item['transfer_cfg'];

                if(empty($transfer_cfg)) {
                    continue;
                }

                $transfer_cfg = unserialize($transfer_cfg);
                if($transfer_cfg === false) {
                    continue;
                }

                $mchid = intval($item['mchid']);
                $opened = intval($transfer_cfg['transfer_opened']);
                $tmchid = intval($transfer_cfg['transfer_mchid']);
                $lower_time = intval($transfer_cfg['transfer_lowertime']);
                $upper_time = intval($transfer_cfg['transfer_uppertime']);
                $card_types = $transfer_cfg['card_types'] ?? [];

                if ($opened == 1 && $tmchid > 0 && $tmchid != $mchid && $lower_time > 0 && $upper_time > $lower_time)
                {
                    $admin_id = $mch_checker($tmchid);
                    if($admin_id > 0) {
                        $this->mMchid2Infos[$mchid] = ['transfer_mchid' => $tmchid, 'admin_id' => $admin_id,
                            'lower_time' => $lower_time, 'upper_time' => $upper_time,'card_types' => $card_types];
                    }
                }
            }
        }
    }

    public function need_transfer($mchid,$order_time,$card_type)
    {
        if(array_key_exists($mchid,$this->mMchid2Infos))
        {
            $transfer_cfg = $this->mMchid2Infos[$mchid];

            $lower_time = $transfer_cfg['lower_time'];
            $upper_time = $transfer_cfg['upper_time'];
            $card_types = $transfer_cfg['card_types'];

            $elpse_secs = time() - $order_time;
            if ($elpse_secs >= $lower_time && $elpse_secs < $upper_time) {
                return true;
            } elseif (in_array($card_type, $card_types)) {
                return false;
            } else {
                return false;
            }
        }

        return false;
    }

    public function transfer_info($mchid)
    {
        if(array_key_exists($mchid,$this->mMchid2Infos))
        {
            $transfer_cfg = $this->mMchid2Infos[$mchid];
            $transfer_mchid = $transfer_cfg['transfer_mchid'];
            $admin_id = $transfer_cfg['admin_id'];

            return [$transfer_mchid,$admin_id];
        }

        return [0,0];
    }

    public function transfers()
    {
        return $this->mMchid2Infos;
    }
}