<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class StockMovement extends Model
{
    protected $table = 'product_stock_movements';

    public const TYPE_OPENING_STOCK = 'opening_stock';
    public const TYPE_RESTOCK = 'restock';
    public const TYPE_SALE = 'sale';
    public const TYPE_ADJUSTMENT = 'adjustment';

    protected $fillable = [
        'product_id',
        'type',
        'quantity',
        'notes',
        'created_by',
    ];

    protected function casts(): array
    {
        return [
            'quantity' => 'integer',
        ];
    }

    public function product(): BelongsTo
    {
        return $this->belongsTo(Product::class);
    }

    public function creator(): BelongsTo
    {
        return $this->belongsTo(User::class, 'created_by');
    }

    public function scopeByType($query, string $type)
    {
        return $query->where('type', $type);
    }

    public function scopeByProduct($query, int $productId)
    {
        return $query->where('product_id', $productId);
    }

    public function scopeOpeningStock($query)
    {
        return $query->where('type', self::TYPE_OPENING_STOCK);
    }

    public function scopeRestock($query)
    {
        return $query->where('type', self::TYPE_RESTOCK);
    }

    public function scopeSale($query)
    {
        return $query->where('type', self::TYPE_SALE);
    }
}