construprogress/app/Models/Phase.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Phase extends Model
{
    protected $fillable = [
        'project_id', 'name', 'description', 'order', 'color', 'progress_percent'
    ];

    public function project()
    {
        return $this->belongsTo(Project::class);
    }

    public function layers()
    {
        return $this->hasMany(Layer::class);
    }

    public function progressUpdates()
    {
        return $this->hasMany(ProgressUpdate::class);
    }

    // Get latest active layer (most recent upload)
    public function currentLayer()
    {
        return $this->hasOne(Layer::class)->latestOfMany();
    }

    /**
     * Get all features across all layers of this phase.
     */
    public function features()
    {
        return $this->hasManyThrough(Feature::class, Layer::class);
    }
}