<?php

namespace App\Events;

use App\Models\ChatMessage;
use Illuminate\Broadcasting\PrivateChannel;
use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
use Illuminate\Queue\SerializesModels;

class NewChatMessage implements ShouldBroadcast
{
    use SerializesModels;

    public $message;

    /**
     * Create a new event instance.
     */
    public function __construct(ChatMessage $message)
{
    // Safe data only (no heavy relationships in queue)
    $this->message = [
        'id' => $message->id,
        'ticket_id' => $message->ticket_id,
        'sender_id' => $message->sender_id,
        'sender_type' => $message->sender_type,
        'message' => $message->message,
        'file_path' => $message->file_path,
        'file_type' => $message->file_type,
        'created_at' => $message->created_at->toDateTimeString(),
    ];
    
    // Load sender separately for broadcastWith()
    $this->sender = $message->sender;
}


    /**
     * The channel the event should broadcast on.
     */
    public function broadcastOn()
    {
        return new PrivateChannel('ticket.' . $this->message->ticket_id);
    }

    /**
     * Data sent to frontend (Blade + Flutter)
     */
    public function broadcastWith()
    {
        \Log::info("DEBUG: NewChatMessage broadcasting on channel ticket.".$this->message->ticket_id);

        return [
            'id'          => $this->message->id,
            'ticket_id'   => $this->message->ticket_id,
            'sender_id'   => $this->message->sender_id,
            'sender_type' => $this->message->sender_type,
            'message'     => $this->message->message,
            'file_url'    => $this->message->file_path 
                                ? asset('storage/' . $this->message->file_path)
                                : null,
            'file_type'   => $this->message->file_type,
            'sender' => [
                'id'         => $this->message->sender->id,
                'name'       => $this->getSenderName(),
                'is_admin'   => $this->message->sender_type === \App\Models\Admin::class,
            ],
            'created_at'  => $this->message->created_at->toDateTimeString(),
        ];
    }

    /**
     * Helper to extract sender name
     */
    private function getSenderName()
    {
        $sender = $this->message->sender;

        // User has customer_name (in your app)
        if ($this->message->sender_type === \App\Models\User::class) {
            return $sender->customer_name ?? $sender->name ?? "User";
        }

        // Admin model has ->name
        return $sender->name ?? "Admin";
    }
}