<?php

namespace refill;
use Log;

class mratio_control
{
    private $mTimesConfig;
    private $mCurRatios;

    public function __construct()
    {
        $this->mTimesConfig = [];
        $this->mCurRatios = [];
    }

    public function load()
    {
        global $config;
        $this->mTimesConfig = $config['merchant_retry_times'] ?? [];
    }

    public function total($mchid)
    {
        if(array_key_exists($mchid,$this->mTimesConfig))
        {
            $items = $this->mTimesConfig[$mchid]['qualities'];

            $times = 0;
            $secs = 0;
            foreach ($items as $quality => $val) {
                $times += $val['times'] ?? 1;
                $secs += $val['secs'] ?? 180;
            }
            return [true,$times,$secs];
        } else {
            return [false,0,0];
        }
    }

    public function times($mchid,$quality)
    {
        if(array_key_exists($mchid,$this->mTimesConfig))
        {
            $items = $this->mTimesConfig[$mchid]['qualities'] ?? [];
            if(array_key_exists($quality,$items)) {
                return $items[$quality]['times'];
            }
        }

        return false;
    }

    public function seconds($mchid,$quality)
    {
        if(array_key_exists($mchid,$this->mTimesConfig))
        {
            $items = $this->mTimesConfig[$mchid]['qualities'] ?? [];
            if(array_key_exists($quality,$items)) {
                return $items[$quality]['secs'];
            }
        }

        return false;
    }

    public function exist($mchid)
    {
        if (array_key_exists($mchid, $this->mTimesConfig)) {
            return true;
        } else {
            return false;
        }
    }

    public function update($ratios)
    {
        Log::record(__METHOD__,Log::DEBUG);
        if(!empty($ratios)) {
            $this->mCurRatios = $ratios;
        }
    }

    private function lower_ratio($mchid)
    {
        $lower_ratio = $this->mTimesConfig[$mchid]['lower_ratio'] ?? [];
        return [$lower_ratio['ratio'],$lower_ratio['period']];
    }

    private function cur_ratio($mchid,$period)
    {
        $mratios = $this->mCurRatios;
        if(array_key_exists($mchid,$mratios)) {
            $mratios = $mratios[$mchid];
            if(array_key_exists($period,$mratios)) {
                return $mratios[$period];
            }
        }

        return 1.0;
    }

    public function ratio_match($mchid)
    {
        [$ratio,$period] = $this->lower_ratio($mchid);
        $cur_ratio = $this->cur_ratio($mchid,$period);

        return $cur_ratio >= $ratio;
    }
}