<?php

namespace App\Notifications;

use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Notifications\Messages\MailMessage;
use Illuminate\Notifications\Notification;
use App\Notifications\Channels\FcmChannel;

class DocumentExpiryNotification extends Notification implements ShouldQueue
{
    use Queueable;

    public $documentType;
    public $expiryDate;
    public $daysRemaining;
    public $reminderLevel;

    /**
     * Create a new notification instance.
     */
    public function __construct($documentType, $expiryDate, $daysRemaining, $reminderLevel)
    {
        $this->documentType = $documentType;
        $this->expiryDate = $expiryDate;
        $this->daysRemaining = $daysRemaining;
        $this->reminderLevel = $reminderLevel;
    }

    /**
     * Get the notification's delivery channels.
     */
    public function via($notifiable): array
    {
        $channels = ['database'];

        // Determine if email channel should be included
        $emailEnabled = true;
        if (method_exists($notifiable, 'employerProfile') && $notifiable->employerProfile) {
            $emailEnabled = (bool) ($notifiable->employerProfile->email_notifications ?? true);
        }
        if ($emailEnabled && !empty($notifiable->email)) {
            $channels[] = 'mail';
        }

        // Determine if push channel should be included
        $pushEnabled = true;
        if (method_exists($notifiable, 'employerProfile') && $notifiable->employerProfile) {
            $pushEnabled = (bool) ($notifiable->employerProfile->push_notifications ?? true);
        }
        if ($pushEnabled && !empty($notifiable->fcm_token)) {
            $channels[] = FcmChannel::class;
        }

        return $channels;
    }

    /**
     * Get the mail representation of the notification.
     */
    public function toMail($notifiable): MailMessage
    {
        $name = $notifiable->name ?? $notifiable->full_name ?? 'User';
        return (new MailMessage)
            ->subject("Document Expiry Alert: {$this->documentType}")
            ->greeting("Hello {$name},")
            ->line("Your {$this->documentType} is expiring in {$this->daysRemaining} days on {$this->expiryDate}.")
            ->line("Please renew your document as soon as possible to avoid service disruption.")
            ->action('Update Profile', url('/profile'))
            ->line('Thank you for using our application!');
    }

    /**
     * Get the array representation of the notification for in-app storage.
     */
    public function toArray($notifiable): array
    {
        return [
            'title' => "Document Expiry Warning",
            'body' => "Your {$this->documentType} will expire in {$this->daysRemaining} days on {$this->expiryDate}.",
            'document_type' => $this->documentType,
            'expiry_date' => $this->expiryDate,
            'days_remaining' => $this->daysRemaining,
            'reminder_level' => $this->reminderLevel,
            'type' => 'document_expiry',
        ];
    }

    /**
     * Get the push notification representation.
     */
    public function toFcm($notifiable): array
    {
        return [
            'token' => $notifiable->fcm_token,
            'title' => "Document Expiry Alert",
            'body' => "Your {$this->documentType} will expire in {$this->daysRemaining} days.",
            'data' => [
                'type' => 'document_expiry',
                'document_type' => $this->documentType,
                'days_remaining' => $this->daysRemaining,
            ],
        ];
    }
}