<?php

namespace App\Module\Fund\Models;

use App\Module\Fund\Enums\FUND_TYPE;
use App\Module\Fund\Enums\LOG_TYPE;
use App\Module\Fund\Enums\OPERATE_TYPE;
use App\Module\User\Models\User;
use App\Module\User\Models\UserInfo;
use UCore\ModelCore;


/**
 * App\Module\Fund\Models\FundLogModel
 * 资金日志表
 * field start 
 * @property  int  $id  
 * @property  int  $user_id  用户ID
 * @property  \App\Module\Fund\Enums\FUND_TYPE  $fund_id  资金id
 * @property  int  $amount  操作金额,正值为收入,负值为支出
 * @property  string  $operate_id  上游操作id
 * @property  \App\Module\Fund\Enums\LOG_TYPE  $operate_type  上游操作类型
 * @property  string  $remark  备注
 * @property  int  $create_time  最后更新时间
 * @property  string  $create_ip  最后更新ip
 * @property  int  $later_balance  在此之后的余额
 * @property  int  $before_balance  在此之前的月
 * @property  int  $date_key  月份key
 * @property  string  $hash  防篡改哈希值
 * @property  string  $prev_hash  上一条记录的哈希值
 * field end
 */
class FundLogModel extends ModelCore
{

    protected $table = 'fund_logs';

    // attrlist start 
    protected $fillable = [
        'id',
        'user_id',
        'fund_id',
        'amount',
        'operate_id',
        'operate_type',
        'remark',
        'create_time',
        'create_ip',
        'later_balance',
        'before_balance',
        'date_key',
        'hash',
        'prev_hash',
    ];
    // attrlist end
    public $timestamps = false;


    protected $casts = [
        'fund_id'      => FUND_TYPE::class,
        'operate_type' => LOG_TYPE::class
    ];

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


    /**
     * 生成记录的哈希值
     * SHA-256 输出为 64 位十六进制字符串
     */
    public function generateHash(): string
    {
        $data = [
            'id'             => $this->id,
            'user_id'        => $this->user_id,
            'fund_id'        => $this->fund_id,
            'amount'         => $this->amount,
            'operate_id'     => $this->operate_id,
            'operate_type'   => $this->operate_type,
            'before_balance' => $this->before_balance,
            'later_balance'  => $this->later_balance,
            'create_time'    => $this->create_time,
            'create_ip'      => $this->create_ip,
            'prev_hash'      => $this->prev_hash,
        ];

        // 按键名排序，确保生成的哈希值一致
        ksort($data);

        // 生成 64 位十六进制哈希值
        return hash('sha256', json_encode($data, JSON_UNESCAPED_UNICODE));
    }


    /**
     * @param $user_id
     * @param $fund_id
     * @return static
     */
    public static function findLastUserFund($user_id, $fund_id)
    {
        return self::query()->where([
                                        'user_id' => $user_id,
                                        'fund_id' => $fund_id
                                    ])->orderBy('id', 'desc')->first();
    }

    public static function addLog($userId, $fundId, $amount)
    {

    }

}