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<?php
/**
* @package J-BusinessDirectory
*
* @author CMSJunkie http://www.cmsjunkie.com/
* @copyright Copyright (C) 2007 - 2022 CMSJunkie. All rights reserved.
* @license https://www.gnu.org/licenses/agpl-3.0.en.html
*/
defined('_JEXEC') or die('Restricted access');
JTable::addIncludePath(JPATH_ROOT . '/administrator/components/com_jbusinessdirectory/tables');
class TaxService
{
/**
* Calculates the VAT based on the amount and country. If VAT for specific country is not
* defined on the application settings, default VAT amount is used.
*
* @param $amount float
* @param $country int country ID
*
* @return float|int
*
* @since 5.5.0
*/
public static function getVatAmount($amount, $countryId = null) {
return self::getVat($amount, $countryId)->vat_amount;
}
/**
* Calculates the VAT based on the amount and country. If VAT for specific country is not
* defined on the application settings, default VAT amount is used.
*
* @param $amount float
* @param $country int country ID
*
* @return stdClass $vatObject contains {vat, vat_amount} fields
*
* @since 5.5.0
*/
public static function getVat($amount, $countryId = null) {
$appSettings = JBusinessUtil::getApplicationSettings();
$vatObject = new stdClass();
$vatAmount = 0;
if (!empty($appSettings->vat_configuration) && !empty($countryId)) {
foreach ($appSettings->vat_configuration as $config) {
if ($config->country_id == $countryId) {
$vatObject->vat = $config->value;
$vatAmount = floatval($amount * $config->value / 100);
}
}
}
if (!empty($appSettings->vat) && empty($vatAmount)) {
$vatObject->vat = $appSettings->vat;
$vatAmount = floatval($amount * $appSettings->vat / 100);
}
if(empty($vatObject->vat)){
$vatObject->vat = 0;
}
$vatObject->vat_amount = $vatAmount;
return $vatObject;
}
/**
* Calculates respective taxes (based on app type) for a certain amount.
* Returns an object that contains the total tax amount and the list of taxes that were applied.
*
* @param $amount float
* @param int $type
* @param null $country int ID of the country
*
* @return stdClass
*
* @since 5.5.0
*/
public static function calculateTaxes($amount, $type = JBD_PACKAGES, $countryId = null) {
$taxes = [];
if ($countryId != null) {
$countryTaxes = self::getTaxes($type, $countryId);
$defaultTaxes = self::getTaxes($type);
foreach ($defaultTaxes as $tax) {
$taxes[$tax->id] = $tax;
foreach ($countryTaxes as $countryTax) {
if ($tax->id == $countryTax->id) {
$taxes[$tax->id] = $countryTax;
}
}
}
} else {
$taxes = self::getTaxes($type);
}
$result = self::calculateOrderTaxes($amount, $taxes);
return $result;
}
/**
* Calculate the taxes amount based on provided taxes
*
* @param [type] $amount
* @param [type] $taxes
* @return void
*/
public static function calculateOrderTaxes($amount, $taxes) {
$taxAmount = 0;
if (!empty($taxes)) {
$amountField = "country_amount";
foreach ($taxes as &$tax) {
if (!isset($tax->country_amount)) {
$amountField = "tax_amount";
}
$tax->tax_amount = $tax->$amountField;
if ($tax->tax_type == 1) {
$tax->tax_calc_amount = $amount > 0 ? $tax->$amountField : 0;
} else {
$tax->tax_calc_amount = $tax->$amountField * $amount / 100;
}
$taxAmount += $tax->tax_calc_amount;
}
}
$taxObject = new stdClass();
$taxObject->taxes = $taxes;
$taxObject->tax_amount = floatval($taxAmount);
return $taxObject;
}
/**
* Retrieves all taxes for a certain type
*
* @param int $type
* @param null $country int ID of the country
*
* @return array
*
* @since 5.5.0
*/
public static function getTaxes($type = JBD_PACKAGES, $countryId = null) {
$taxesTable = JTable::getInstance("Taxes", "Table", array());
$taxes = $taxesTable->getTaxes($type, $countryId);
return $taxes;
}
/**
* Retrieve all order taxes for a specific order.
*
* @param int $orderId ID of the order
* @param int $type of the order
*
* @return mixed
*/
public static function getOrderTaxes($orderId, $type = JBD_PACKAGES) {
$orderTable = JTable::getInstance("Order", "JTable", array());
return $orderTable->getOrderTaxes($orderId, $type);
}
/**
* Calculates and updates order taxes for a specific existing order based on given country.
* Will first delete the current associated order taxes, and create new ones with the updated tax values.
*
* @param int $orderId ID of the order
* @param int $countryId ID of the country
* @param int $type type of the order
*
* @return bool
* @throws Exception
*
* @since 5.5.2
*/
public static function updateOrderTaxes($orderId, $countryId, $type = JBD_PACKAGES) {
$orderTable = JTable::getInstance("Order", "JTable", array());
$order = null;
$amountField = "initial_amount";
if ($type == JBD_PACKAGES) {
$order = $orderTable->getOrder($orderId);
} else if ($type == JBD_APP_CAMPAIGNS) {
$campaignTable = JTable::getInstance("Campaign", "JTable", array());
$amountField = "initial_budget";
$order = $campaignTable->getCampaign($orderId);
}
try {
$orderTable->deleteOrderTaxes($orderId, $type);
} catch (Exception $e) {
throw new Exception($e->getMessage());
}
$taxObject = self::calculateTaxes($order->$amountField, $type, $countryId);
if (empty($taxObject->taxes)) {
$taxObject = self::calculateTaxes($order->$amountField, $type);
}
$orderTable->createOrderTax($orderId, $type, $taxObject->taxes);
return true;
}
}