<?php

namespace models;

use mt;
use phpcommon\SqlHelper;

class DynData extends BaseModel {

    public static function preload()
    {
        if (!self::$dynData) {
            self::$dynData = array();
            $rows = SqlHelper::ormSelect(
                myself()->_getSelfMysql(),
                't_dyndata',
                array(
                    'account_id' => myself()->_getAccountId(),
                )
            );
            foreach ($rows as $row) {
                $key = self::calcKey($row['x'], $row['y']);
                self::$dynData[$key] = $row['val'];
            }
        }
    }

    public static function getV($x, $y, $defVal = 0)
    {
        $key = self::calcKey($x, $y);
        if (self::$dynData) {
            return getXVal(self::$dynData, $key, $defVal);
        } else {
            ++self::$hitCount;
            if (self::$hitCount > 5) {
                self::preload();
                return self::getV($x, $y, $defVal);
            } else {
                $row = SqlHelper::ormSelectOne(
                    myself()->_getSelfMysql(),
                    't_dyndata',
                    array(
                        'account_id' => myself()->_getAccountId(),
                        'x' => $x,
                        'y' => $y,
                    )
                );
                return $row ? $row['val'] : $defVal;
            }
        }
    }

    public static function setV($x, $y, $defVal)
    {
        $key = self::calcKey($x, $y);
        self::internalSetV($x, $y, $defVal);
    }

    public static function incV($x, $y, $val)
    {
        $key = self::calcKey($x, $y);
        $oldVal = self::getV($x, $y);
        self::internalSetV($x, $y, $oldVal + $val);
    }

    public static function decV($x, $y, $val)
    {
        self::incV($x, $y, 0 - $val);
    }

    public static function calcKey($x, $y)
    {
        $low32 = (int)$x;
        $high32 = (int)$y;
        $key = $low32 + ($high32 << 32);
        return $key;
    }

    private static function internalSetV($x, $y, $val)
    {
        if (!is_int($x) || !is_int($y)) {
            die('internalSet type error');
            return;
        }
        if (abs($x) > 0xFFFFFFFF) {
            die('internalSet x error');
            return;
        }
        if (abs($y) > 0xFFFFFFFF) {
            die('internalSet y error');
            return;
        }
        $key = self::calcKey($x, $y);
        SqlHelper::upsert
            (myself()->_getSelfMysql(),
             't_dyndata',
             array(
                 'account_id' => myself()->_getAccountId(),
                 'x' => $x,
                 'y' => $y
             ),
             array(
                 'val' => $val,
                 'modifytime' => myself()->_getNowTime()
             ),
             array(
                 'account_id' => myself()->_getAccountId(),
                 'x' => $x,
                 'y' => $y,
                 'val' => $val,
                 'createtime' => myself()->_getNowTime(),
                 'modifytime' => myself()->_getNowTime()
             )
            );
        if (self::$dynData) {
            self::$dynData[$key] = $defVal;
        }
    }

    private static $dynData = null;
    private static $hitCount = 0;

}