<?php

namespace App\Services;

use Modules\Erpstock\Models\StockMovement;
use Modules\Erpproducts\Models\Product;
use App\Helpers\Log;
use Illuminate\Database\Capsule\Manager as DB;

class ProductStockMovementService
{
    /**
     * Create a new product stock movement.
     *
     * @param array $data Movement data
     * @param object $user User performing the action
     * @return StockMovement The created movement
     * @throws \Exception
     */
    public function createMovement(array $data, $user)
    {
        DB::beginTransaction();
        try {
            $product = Product::where('pr_id', $data['product_id'])
                ->where('pr_idbus', $user->users_bus_id)
                ->first();

            if (!$product) {
                throw new \Exception(__('erpstock.erpstock.movements.error_product_not_found'));
            }

            $quantity = (float)$data['quantity'];
            $type = $data['type']; // 'E' for Entry, 'S' for Exit

            // Update product stock
            if ($type === 'E') {
                $product->pr_estocado += $quantity;
            } else {
                $product->pr_estocado -= $quantity;
            }
            $product->save();

            // Create movement record
            $movementData = [
                'mepro_data' => date('Y-m-d'), // Fixed: Legacy system uses DATE type, not DATETIME
                'mepro_idpr' => $product->pr_id,
                'mepro_idoperador' => $user->users_id,
                'mepro_tipoes' => $type,
                'mepro_qtdade' => $quantity,
                'mepro_historico' => $data['history'] ?? '',
                'mepro_documento' => $data['document'] ?? '',
                'mepro_lote' => $data['batch'] ?? '',
                'mepro_custo' => $data['cost'] ?? 0,
                'mepro_preco' => $data['price'] ?? 0,
                'mepro_ipi' => $data['ipi'] ?? 0,
                'mepro_icms' => $data['icms'] ?? 0,
                'mepro_oimpostos' => $data['other_taxes'] ?? 0,
                'mepro_obs' => $data['observation'] ?? '',
                'mepro_idbus' => $user->users_bus_id,
                'mepro_idfornecedor' => $data['supplier_id'] ?? 0,
                'mepro_idcliente' => $data['customer_id'] ?? 0,
                'mepro_idarmazem' => $data['warehouse_id'] ?? 0,
                'mepro_nfantasia' => $product->pr_descricao, // Fixed: Product model doesn't have pr_nome
                'mepro_descricao' => $product->pr_descricao,
                'mepro_codigo' => $product->pr_codigo,
                'mepro_exp1' => $data['extra1'] ?? '',
                'mepro_exp2' => $data['extra2'] ?? '',
                'mepro_exp3' => $data['extra3'] ?? '',
                // Legacy required fields with default values
                'mepro_idhistorico' => 0,
                'mepro_idoc' => 0,
                'mepro_idcoc' => 0,
                'mepro_idcot' => 0,
                'mepro_pn' => '',
                'mepro_bp' => ''
            ];

            $movement = StockMovement::create($movementData);

            Log::write('erpstock', 'Product Stock Movement', "Created movement ID: {$movement->mepro_id} with history: " . ($movementData['mepro_historico'] ?? 'NULL'));

            DB::commit();
            return $movement;
        } catch (\Exception $e) {
            DB::rollBack();
            Log::write('erpstock', 'Error', 'Failed to create movement: ' . $e->getMessage());
            throw $e;
        }
    }
}