sirpremiumv2/app/Models/ChatConversation.php

<?php

namespace App\Models;

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

class ChatConversation extends Model
{
    protected $table = 'chat_conversations';
    protected $fillable = ['contact_id', 'canal', 'estado', 'menu_actual_id', 'ultimo_mensaje_at', 'mensajes_no_leidos'];
    protected $casts = ['ultimo_mensaje_at' => 'datetime'];

    public function contact(): BelongsTo
    {
        return $this->belongsTo(ChatContact::class, 'contact_id');
    }

    public function messages(): HasMany
    {
        return $this->hasMany(ChatMessage::class, 'conversation_id');
    }

    public function menuActual(): BelongsTo
    {
        return $this->belongsTo(ChatMenu::class, 'menu_actual_id');
    }

    public function canalBadge(): string
    {
        return match($this->canal) {
            'telegram' => '✈️ Telegram',
            'whatsapp' => '🟢 WhatsApp',
            default    => '💬 Web',
        };
    }

    public function canalColor(): string
    {
        return match($this->canal) {
            'telegram' => 'bg-blue-100 text-blue-700',
            'whatsapp' => 'bg-emerald-100 text-emerald-700',
            default    => 'bg-green-100 text-green-700',
        };
    }
}