<?php

namespace Modules\MaterialLogistics\Models;
use Modules\MasterData\Models\Material;
use Modules\MasterData\Models\MaterialGroup;

use App\Traits\HasPublicIdentifier;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Modules\ProjectManagement\Models\Project;

class MaterialRequirement extends Model
{
    use HasPublicIdentifier;

    protected $fillable = [
        'project_id', 'task_id', 'material_id',
        'required_qty', 'unit_cost_at_booking', 'status',
    ];

    protected function casts(): array
    {
        return [
            'required_qty' => 'decimal:2',
            'unit_cost_at_booking' => 'decimal:2',
        ];
    }

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

    public function material(): BelongsTo
    {
        return $this->belongsTo(Material::class);
    }

    public function getTotalCostAttribute(): float
    {
        return (float) $this->required_qty * (float) $this->unit_cost_at_booking;
    }
}