<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Support\Str;

class EmailVerificationToken extends Model
{
    protected $fillable = [
        'user_id',
        'token',
        'expires_at',
        'used_at',
    ];

    protected $casts = [
        'expires_at' => 'datetime',
        'used_at' => 'datetime',
    ];

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

    /**
     * Create a new verification token for user
     */
    public static function createForUser(User $user, int $expiresInHours = 24): self
    {
        // Invalidate existing tokens
        self::where('user_id', $user->id)->whereNull('used_at')->delete();

        return self::create([
            'user_id' => $user->id,
            'token' => Str::random(64),
            'expires_at' => now()->addHours($expiresInHours),
        ]);
    }

    /**
     * Find valid token
     */
    public static function findValid(string $token): ?self
    {
        return self::where('token', $token)
            ->where('expires_at', '>', now())
            ->whereNull('used_at')
            ->first();
    }

    /**
     * Check if token is valid
     */
    public function isValid(): bool
    {
        return $this->expires_at > now() && $this->used_at === null;
    }

    /**
     * Mark token as used
     */
    public function markAsUsed(): void
    {
        $this->update(['used_at' => now()]);
    }
}