<?php

namespace App\Models;

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

class DnsRecord extends Model
{
    protected $fillable = [
        'site_id',
        'domain',
        'record_type',
        'expected_value',
        'last_checked_at',
        'is_valid',
        'actual_value',
        'error_message',
        'is_active',
    ];

    protected $casts = [
        'last_checked_at' => 'datetime',
        'is_valid' => 'boolean',
        'is_active' => 'boolean',
        'actual_value' => 'array',
    ];

    /**
     * Available DNS record types.
     */
    public static function getRecordTypes(): array
    {
        return [
            'A' => 'A (IPv4 Address)',
            'AAAA' => 'AAAA (IPv6 Address)',
            'CNAME' => 'CNAME (Canonical Name)',
            'MX' => 'MX (Mail Exchange)',
            'TXT' => 'TXT (Text Record)',
            'NS' => 'NS (Name Server)',
            'SOA' => 'SOA (Start of Authority)',
            'PTR' => 'PTR (Pointer)',
            'SRV' => 'SRV (Service)',
        ];
    }

    /**
     * Get the site that owns the DNS record.
     */
    public function site(): BelongsTo
    {
        return $this->belongsTo(Site::class);
    }

    /**
     * Scope to filter active DNS records.
     */
    public function scopeActive($query)
    {
        return $query->where('is_active', true);
    }

    /**
     * Scope to filter valid records.
     */
    public function scopeValid($query)
    {
        return $query->where('is_valid', true);
    }

    /**
     * Scope to filter invalid records.
     */
    public function scopeInvalid($query)
    {
        return $query->where('is_valid', false);
    }

    /**
     * Get status badge color.
     */
    public function getStatusColorAttribute(): string
    {
        if ($this->is_valid === null) {
            return 'secondary';
        }

        return $this->is_valid ? 'success' : 'danger';
    }

    /**
     * Get status text.
     */
    public function getStatusTextAttribute(): string
    {
        if ($this->is_valid === null) {
            return 'Unknown';
        }

        return $this->is_valid ? 'Valid' : 'Invalid';
    }

    /**
     * Get display name for the record.
     */
    public function getDisplayNameAttribute(): string
    {
        return "{$this->record_type} - {$this->domain}";
    }

    /**
     * Get formatted actual value for display.
     */
    public function getFormattedActualValueAttribute(): ?string
    {
        if (!$this->actual_value) {
            return null;
        }

        if (is_array($this->actual_value)) {
            if (count($this->actual_value) === 1) {
                return $this->actual_value[0];
            }
            return implode(', ', $this->actual_value);
        }

        return $this->actual_value;
    }
}