<?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;

class WarehouseStock extends Model
{
    use HasPublicIdentifier;

    protected $table = 'warehouse_stock';

    protected $fillable = [
        'warehouse_id', 'material_id',
        'quantity', 'reserved_qty', 'unit_cost', 'low_stock_threshold',
    ];

    protected function casts(): array
    {
        return [
            'quantity' => 'decimal:2',
            'reserved_qty' => 'decimal:2',
            'unit_cost' => 'decimal:2',
            'low_stock_threshold' => 'integer',
        ];
    }

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

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

    public function getAvailableQtyAttribute(): float
    {
        return (float) $this->quantity - (float) $this->reserved_qty;
    }

    public function getTotalValueAttribute(): float
    {
        return (float) $this->quantity * (float) $this->unit_cost;
    }

    public function getIsLowStockAttribute(): bool
    {
        $threshold = $this->low_stock_threshold ?? 10;
        return (float) $this->quantity > 0 && (float) $this->quantity <= $threshold;
    }
}