<?php

namespace Controllers;

use Libs\ResponseLib;
use Models\ProductModel;
use Psr\Http\Message\ServerRequestInterface;
use Respect\Validation\Validator as v;
use Respect\Validation\Exceptions\ValidationException;

class ProductUpdateController
{
    private ProductModel $model;

    public function __construct()
    {
        $this->model = new ProductModel();
    }

    public function __invoke(ServerRequestInterface $request)
    {
        $body = json_decode((string)$request->getBody(), true) ?? [];

        try {
            v::key('company_id', v::intType()->positive())
             ->key('update_product_id', v::intType()->positive())
             ->key('product_name', v::optional(v::stringType()->notEmpty()), false)
             ->key('product_price', v::optional(v::number()->positive()), false)
             ->assert($body);
        } catch (ValidationException $e) {
            return ResponseLib::sendFail("Validation failed: " . $e->getFullMessage(), [], "E_VALIDATE")->withStatus(400);
        }

        // Verifica se pelo menos um dos dois está presente
        $hasProductName = isset($body['product_name']) && $body['product_name'] !== null;
        $hasProductPrice = isset($body['product_price']) && $body['product_price'] !== null;

        if (!$hasProductName && !$hasProductPrice) {
            return ResponseLib::sendFail("Missing product_name or product_price for update", [], "E_VALIDATE")->withStatus(400);
        }

        $companyId = $body['company_id'];
        $productId = $body['update_product_id'];
        $productName = $hasProductName ? $body['product_name'] : null;
        $productPrice = $hasProductPrice ? (float)$body['product_price'] : null;

        $updated = $this->model->updateProduct(
            (int)$productId,
            (int)$companyId,
            $productName,
            $productPrice
        );

        return $updated
            ? ResponseLib::sendOk(['updated' => true])
            : ResponseLib::sendFail("Failed to Update Product or Product Not Found", [], "E_DATABASE")->withStatus(404);
    }
}