<?php

namespace App\Notifications;

use App\Models\Site;
use Carbon\Carbon;
use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Notifications\Messages\MailMessage;
use Illuminate\Notifications\Messages\SlackMessage;
use Illuminate\Notifications\Notification;

class SslExpiryAlert extends Notification implements ShouldQueue
{
    use Queueable;

    /**
     * Create a new notification instance.
     */
    public function __construct(
        public Site $site,
        public string $issuer,
        public Carbon $expiresAt,
        public int $daysRemaining,
        public bool $isExpired = false
    ) {
    }

    /**
     * Get the notification's delivery channels.
     *
     * @return array<int, string>
     */
    public function via(object $notifiable): array
    {
        $preferences = $notifiable->notification_preferences ?? [];
        $channels = $preferences['ssl'] ?? ['mail'];

        return $channels;
    }

    /**
     * Get the mail representation of the notification.
     */
    public function toMail(object $notifiable): MailMessage
    {
        $message = (new MailMessage)
            ->subject($this->isExpired
                ? "🔴 SSL Certificate Expired: {$this->site->name}"
                : "⚠️ SSL Certificate Expiring Soon: {$this->site->name}")
            ->line($this->isExpired
                ? "The SSL certificate for **{$this->site->name}** has **expired**."
                : "The SSL certificate for **{$this->site->name}** is expiring soon.")
            ->line("URL: {$this->site->url}")
            ->line("Issuer: {$this->issuer}")
            ->line($this->isExpired
                ? "Expired on: {$this->expiresAt->format('Y-m-d')}"
                : "Expires on: {$this->expiresAt->format('Y-m-d')} ({$this->daysRemaining} days remaining)")
            ->action('View Site Details', url("/sites/{$this->site->id}"));

        if ($this->isExpired) {
            $message->error();
            $message->line('⚠️ Your site visitors may see security warnings. Please renew the certificate immediately.');
        } else {
            $message->warning();
            $message->line('Please renew the certificate before it expires to avoid service disruption.');
        }

        return $message;
    }

    /**
     * Get the Slack representation of the notification.
     */
    public function toSlack(object $notifiable): SlackMessage
    {
        $color = $this->isExpired ? 'danger' : 'warning';
        $emoji = $this->isExpired ? '🔴' : '⚠️';

        return (new SlackMessage)
            ->from('Site Monitor')
            ->to(config('services.slack.channel'))
            ->content($this->isExpired
                ? "{$emoji} SSL Certificate Expired!"
                : "{$emoji} SSL Certificate Expiring Soon!")
            ->attachment(function ($attachment) use ($color) {
                $attachment
                    ->color($color)
                    ->title($this->site->name, url("/sites/{$this->site->id}"))
                    ->fields([
                        'URL' => $this->site->url,
                        'Issuer' => $this->issuer,
                        'Expires' => $this->expiresAt->format('Y-m-d'),
                        'Status' => $this->isExpired
                            ? 'EXPIRED'
                            : "{$this->daysRemaining} days remaining",
                    ]);
            });
    }

    /**
     * Get the array representation of the notification.
     *
     * @return array<string, mixed>
     */
    public function toArray(object $notifiable): array
    {
        return [
            'site_id' => $this->site->id,
            'site_name' => $this->site->name,
            'site_url' => $this->site->url,
            'issuer' => $this->issuer,
            'expires_at' => $this->expiresAt->toDateTimeString(),
            'days_remaining' => $this->daysRemaining,
            'is_expired' => $this->isExpired,
        ];
    }
}