<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Concerns\HasUlids;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsToMany;
use Illuminate\Database\Eloquent\Relations\HasMany;
use Illuminate\Database\Eloquent\SoftDeletes;

class Conversation extends Model
{
    use HasFactory, HasUlids, SoftDeletes;

    protected $fillable = [
        'label',
        'is_group',
    ];

    protected function casts(): array
    {
        return [
            'is_group' => 'boolean',
        ];
    }

    public function participants(): HasMany
    {
        return $this->hasMany(Participant::class);
    }

    public function messages(): HasMany
    {
        return $this->hasMany(Message::class);
    }

    public function latestMessage(): \Illuminate\Database\Eloquent\Relations\HasOne
    {
        return $this->hasOne(Message::class)->latestOfMany();
    }

    public function users(): BelongsToMany
    {
        return $this->belongsToMany(User::class, 'participants')
            ->withTimestamps()
            ->using(Participant::class); // Optional, but links the pivot back to Participant model if needed.
    }
}