<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class UserDevice extends Model
{
    use HasFactory;

    protected $fillable = [
        'user_id',
        'device_hash',
        'device_name',
        'device_type',
        'os',
        'browser',
        'ip',
        'location',
        'first_login_at',
        'last_login_at',
        'is_trusted',
        'trusted_at',
    ];

    protected $casts = [
        'is_trusted' => 'boolean',
        'first_login_at' => 'datetime',
        'last_login_at' => 'datetime',
        'trusted_at' => 'datetime',
    ];

    /**
     * 用户关联
     */
    public function user(): BelongsTo
    {
        return $this->belongsTo(User::class);
    }

    /**
     * 判断是否授信
     */
    public function isTrusted(): bool
    {
        return $this->is_trusted;
    }

    /**
     * 授信
     */
    public function trust(): void
    {
        $this->update([
            'is_trusted' => true,
            'trusted_at' => now(),
        ]);
    }

    /**
     * 取消授信
     */
    public function revoke(): void
    {
        $this->update([
            'is_trusted' => false,
            'trusted_at' => null,
        ]);
    }

    /**
     * 更新登录信息
     */
    public function recordLogin(): void
    {
        if (!$this->first_login_at) {
            $this->update(['first_login_at' => now()]);
        }
        $this->update(['last_login_at' => now()]);
    }

    /**
     * 通过设备哈希查找
     */
    public static function findByHash(int $userId, string $hash): ?self
    {
        return static::where('user_id', $userId)
            ->where('device_hash', $hash)
            ->first();
    }

    /**
     * 生成设备哈希
     */
    public static function generateHash(string $userAgent, string $ip): string
    {
        return hash('sha256', $userAgent . $ip . config('app.key'));
    }

    /**
     * 解析设备信息
     */
    public static function parseDeviceInfo(string $userAgent): array
    {
        $deviceType = 'desktop';
        $os = 'Unknown';
        $browser = 'Unknown';

        // 检测设备类型
        if (preg_match('/mobile|android|iphone|ipad|ipod/i', $userAgent)) {
            if (preg_match('/ipad/i', $userAgent)) {
                $deviceType = 'tablet';
            } else {
                $deviceType = 'mobile';
            }
        }

        // 检测操作系统
        if (preg_match('/windows nt 10/i', $userAgent)) {
            $os = 'Windows 10';
        } elseif (preg_match('/windows nt 6.3/i', $userAgent)) {
            $os = 'Windows 8.1';
        } elseif (preg_match('/mac os x/i', $userAgent)) {
            $os = 'macOS';
        } elseif (preg_match('/linux/i', $userAgent)) {
            $os = 'Linux';
        } elseif (preg_match('/android/i', $userAgent)) {
            $os = 'Android';
        } elseif (preg_match('/iphone|ipad|ipod/i', $userAgent)) {
            $os = 'iOS';
        }

        // 检测浏览器
        if (preg_match('/edg/i', $userAgent)) {
            $browser = 'Edge';
        } elseif (preg_match('/chrome/i', $userAgent)) {
            $browser = 'Chrome';
        } elseif (preg_match('/firefox/i', $userAgent)) {
            $browser = 'Firefox';
        } elseif (preg_match('/safari/i', $userAgent)) {
            $browser = 'Safari';
        } elseif (preg_match('/ie|trident/i', $userAgent)) {
            $browser = 'IE';
        }

        return [
            'device_type' => $deviceType,
            'os' => $os,
            'browser' => $browser,
        ];
    }
}