<?php
declare(strict_types=1);

namespace app\common\model;

use think\Model;

class UserVerificationCode extends Model
{
    // 设置表名
    protected $name = 'user_verification_codes';
    
    // 设置主键
    protected $pk = 'id';
    
    // 自动写入时间戳
    protected $autoWriteTimestamp = true;
    
    // 定义时间戳字段名
    protected $createTime = 'created_at';
    protected $updateTime = 'updated_at';
    
    // 验证码类型常量
    const TYPE_REGISTER = 1;    // 注册
    const TYPE_LOGIN = 2;       // 登录
    const TYPE_RESET_PASSWORD = 3;  // 找回密码
    const TYPE_CHANGE_MOBILE = 4;   // 修改手机
    const TYPE_CHANGE_EMAIL = 5;    // 修改邮箱
    const TYPE_OTHER = 6;           // 其他
    
    // 状态常量
    const STATUS_UNUSED = 0;    // 未使用
    const STATUS_USED = 1;      // 已使用
    const STATUS_EXPIRED = 2;   // 已失效
    
    // 发送渠道常量
    const CHANNEL_SMS = 'sms';      // 短信
    const CHANNEL_EMAIL = 'email';  // 邮件
    
    /**
     * 获取验证码类型列表
     * @return array
     */
    public static function getCodeTypes(): array
    {
        return [
            self::TYPE_REGISTER => '注册',
            self::TYPE_LOGIN => '登录',
            self::TYPE_RESET_PASSWORD => '找回密码',
            self::TYPE_CHANGE_MOBILE => '修改手机',
            self::TYPE_CHANGE_EMAIL => '修改邮箱',
            self::TYPE_OTHER => '其他'
        ];
    }
    
    /**
     * 获取状态列表
     * @return array
     */
    public static function getStatusList(): array
    {
        return [
            self::STATUS_UNUSED => '未使用',
            self::STATUS_USED => '已使用',
            self::STATUS_EXPIRED => '已失效'
        ];
    }
    
    /**
     * 获取发送渠道列表
     * @return array
     */
    public static function getChannelList(): array
    {
        return [
            self::CHANNEL_SMS => '短信',
            self::CHANNEL_EMAIL => '邮件'
        ];
    }
    
    /**
     * 创建验证码
     * @param string $account 账号
     * @param string $code 验证码
     * @param int $codeType 验证码类型
     * @param string $channel 发送渠道
     * @param string $ipAddress IP地址
     * @param int $userId 用户ID
     * @param int $expireMinutes 过期时间（分钟）
     * @return UserVerificationCode
     */
    public static function createCode(
        string $account,
        string $code,
        int $codeType,
        string $channel,
        string $ipAddress = '',
        int $userId = 0,
        int $expireMinutes = 5
    ): self {
        $data = [
            'user_id' => $userId,
            'account' => $account,
            'code' => $code,
            'code_type' => $codeType,
            'channel' => $channel,
            'ip_address' => $ipAddress,
            'status' => self::STATUS_UNUSED,
            'expired_at' => date('Y-m-d H:i:s', time() + $expireMinutes * 60)
        ];
        
        return self::create($data);
    }
    
    /**
     * 验证验证码
     * @param string $account 账号
     * @param string $code 验证码
     * @param int $codeType 验证码类型
     * @return bool
     */
    public static function verifyCode(string $account, string $code, int $codeType): bool
    {
        $verificationCode = self::where([
            'account' => $account,
            'code' => $code,
            'code_type' => $codeType,
            'status' => self::STATUS_UNUSED
        ])
        ->where('expired_at', '>', date('Y-m-d H:i:s'))
        ->find();
        
        if (!$verificationCode) {
            return false;
        }
        
        // 更新验证码状态
        $verificationCode->status = self::STATUS_USED;
        $verificationCode->used_at = date('Y-m-d H:i:s');
        return $verificationCode->save();
    }
    
    /**
     * 使验证码失效
     * @param string $account 账号
     * @param int $codeType 验证码类型
     * @return bool
     */
    public static function invalidateCode(string $account, int $codeType): bool
    {
        return self::where([
            'account' => $account,
            'code_type' => $codeType,
            'status' => self::STATUS_UNUSED
        ])->update([
            'status' => self::STATUS_EXPIRED
        ]);
    }
    
    /**
     * 获取最近的验证码
     * @param string $account 账号
     * @param int $codeType 验证码类型
     * @return UserVerificationCode|null
     */
    public static function getLatestCode(string $account, int $codeType): ?self
    {
        return self::where([
            'account' => $account,
            'code_type' => $codeType,
            'status' => self::STATUS_UNUSED
        ])
        ->where('expired_at', '>', date('Y-m-d H:i:s'))
        ->order('id', 'desc')
        ->find();
    }
}