<?php
declare(strict_types=1);

namespace app\common\model;

use think\Model;

class MoneyLog Extends Model
{
    // 自动写入时间戳字段
    protected $autoWriteTimestamp = true;
    protected $createTime = 'createtime';
    protected $updateTime = 'updatetime';

    protected $type = [
        'createtime'     =>  'timestamp:Y-m-d H:i',
        'updatetime'     =>  'timestamp:Y-m-d H:i',
    ];

    const TYPE_INCOME = 1;
    const TYPE_EXPENDITURE = 2;

    //
    public function users()
    {
        return $this->hasOne(User::class,'id','user_id')->field('id,nickname');
    }


    public function stockconfig()
    {
        return $this->hasOne(StockConfig::class,'id','variety_id')->field('id,title');
    }
    

    //按照类型统计 收入- 支出
    public static function getCountBalance(int $user_id = 0, string $time = '')
    {
        $income = self::where('type', self::TYPE_INCOME);
        if(!empty($user_id) && !empty($time)){
            $income = $income->where('user_id', $user_id)->whereMonth('create_date', $time);

        }
        $income = $income->sum('change');
        //支出
        $expenditure = self::where('type', self::TYPE_EXPENDITURE);
        if(!empty($user_id) && !empty($time)){
            $expenditure = $expenditure->where('user_id', $user_id)->whereMonth('create_date', $time);
        }
        $expenditure = $expenditure->sum('change');
        $balance = $income - $expenditure;
        return [
            'balance' => $balance,
            'income' => $income,
            'expenditure' => $expenditure
            
        ];
    }

}