<?php

namespace App\Module\Fund\Models;


use App\Module\Fund\Enums\FUND_TYPE;
use App\Module\User\Models\User;

use App\Module\User\Models\UserInfo;
use UCore\ModelCore;

/**
 * 用户账户表
 *
 * 存储用户的各种账户信息及余额。每个用户可以拥有多个不同种类的账户，
 * 每个账户对应一种账户种类（FundConfigModel）。
 * 同一币种可以有多个不同用途的账户，如可用账户、冻结账户等。
 *
 * field start 
 * @property  int  $id  自增
 * @property  int  $user_id  用户ID
 * @property  \App\Module\Fund\Enums\FUND_TYPE  $fund_id  资金ID
 * @property  int  $balance  余额
 * @property  int  $update_time  更新时间
 * @property  int  $create_time  创建时间
 * field end
 */
class FundModel extends ModelCore
{

    protected $table      = 'fund';
    public    $timestamps = false;

    // attrlist start 
    protected $fillable = [
        'id',
        'user_id',
        'fund_id',
        'balance',
        'update_time',
        'create_time',
    ];
    // attrlist end
    protected $casts = [
        'fund_id' => FUND_TYPE::class
    ];

    public static function userAccount($user_id)
    {
        $q = self::query()->where([
                                      'user_id' => $user_id,
                                  ])->lockForUpdate()->get();


        return $q;
    }

    /**
     *
     * @param $user_id
     * @param $fund_id
     * @return false|FundModel
     */
    static public function getAccount($user_id, $fund_id)
    {
        $q = self::query()->where([
                                      'user_id' => $user_id,
                                      'fund_id' => $fund_id
                                  ])->lockForUpdate()->first();


        return $q;
    }

    /**
     * @param $userId
     * @param $fundIds
     * @return \Illuminate\Database\Eloquent\Collection
     * 获取用户全部资金账户
     */
    public static function getAllAccount($userId, $fundIds)
    {
        $query = self::query();
        $query->where('user_id', $userId);
        $query->whereIn('fund_id', $fundIds);

        return $query->get();

    }

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

    //
    public function userInfo()
    {
        return $this->hasOne(UserInfo::class, 'user_id', 'user_id');
    }

    /**
     * @param $userId
     * @param $fundId
     * @param $amount
     * @return int
     * 减少资金
     */
    public static function dec($userId, $fundId, $amount)
    {
        $query = self::query();
        $query->where('user_id', $userId);
        $query->where('fund_id', $fundId);

        return $query->decrement('balance', $amount);
    }

    /**
     * @param $userId
     * @param $fundId
     * @param $amount
     * @return int
     * 增加资金
     */
    public static function inc($userId, $fundId, $amount)
    {
        $query = self::query();
        $query->where('user_id', $userId);
        $query->where('fund_id', $fundId);

        return $query->increment('balance', $amount);
    }

}