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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\TaxImportExport\Model\Rate;
/**
* Tax Rate CSV Import Handler
*
* @api
* @since 100.0.2
*/
class CsvImportHandler
{
/**
* Collection of publicly available stores
*
* @var \Magento\Store\Model\ResourceModel\Store\Collection
*/
protected $_publicStores;
/**
* Region collection prototype
*
* The instance is used to retrieve regions based on country code
*
* @var \Magento\Directory\Model\ResourceModel\Region\Collection
*/
protected $_regionCollection;
/**
* Country factory
*
* @var \Magento\Directory\Model\CountryFactory
*/
protected $_countryFactory;
/**
* Tax rate factory
*
* @var \Magento\Tax\Model\Calculation\RateFactory
*/
protected $_taxRateFactory;
/**
* CSV Processor
*
* @var \Magento\Framework\File\Csv
*/
protected $csvProcessor;
/**
* @param \Magento\Store\Model\ResourceModel\Store\Collection $storeCollection
* @param \Magento\Directory\Model\ResourceModel\Region\Collection $regionCollection
* @param \Magento\Directory\Model\CountryFactory $countryFactory
* @param \Magento\Tax\Model\Calculation\RateFactory $taxRateFactory
* @param \Magento\Framework\File\Csv $csvProcessor
*/
public function __construct(
\Magento\Store\Model\ResourceModel\Store\Collection $storeCollection,
\Magento\Directory\Model\ResourceModel\Region\Collection $regionCollection,
\Magento\Directory\Model\CountryFactory $countryFactory,
\Magento\Tax\Model\Calculation\RateFactory $taxRateFactory,
\Magento\Framework\File\Csv $csvProcessor
) {
// prevent admin store from loading
$this->_publicStores = $storeCollection->setLoadDefault(false);
$this->_regionCollection = $regionCollection;
$this->_countryFactory = $countryFactory;
$this->_taxRateFactory = $taxRateFactory;
$this->csvProcessor = $csvProcessor;
}
/**
* Retrieve a list of fields required for CSV file (order is important!)
*
* @return array
*/
public function getRequiredCsvFields()
{
// indexes are specified for clarity, they are used during import
return [
0 => __('Code'),
1 => __('Country'),
2 => __('State'),
3 => __('Zip/Post Code'),
4 => __('Rate'),
5 => __('Zip/Post is Range'),
6 => __('Range From'),
7 => __('Range To')
];
}
/**
* Import Tax Rates from CSV file
*
* @param array $file file info retrieved from $_FILES array
* @return void
* @throws \Magento\Framework\Exception\LocalizedException
*/
public function importFromCsvFile($file)
{
if (!isset($file['tmp_name'])) {
throw new \Magento\Framework\Exception\LocalizedException(__('Invalid file upload attempt.'));
}
$ratesRawData = $this->csvProcessor->getData($file['tmp_name']);
// first row of file represents headers
$fileFields = $ratesRawData[0];
$validFields = $this->_filterFileFields($fileFields);
$invalidFields = array_diff_key($fileFields, $validFields);
$ratesData = $this->_filterRateData($ratesRawData, $invalidFields, $validFields);
// store cache array is used to quickly retrieve store ID when handling locale-specific tax rate titles
$storesCache = $this->_composeStoreCache($validFields);
$regionsCache = [];
foreach ($ratesData as $rowIndex => $dataRow) {
// skip headers
if ($rowIndex == 0) {
continue;
}
$regionsCache = $this->_importRate($dataRow, $regionsCache, $storesCache);
}
}
/**
* Filter file fields (i.e. unset invalid fields)
*
* @param array $fileFields
* @return string[] filtered fields
*/
protected function _filterFileFields(array $fileFields)
{
$filteredFields = $this->getRequiredCsvFields();
$requiredFieldsNum = count($this->getRequiredCsvFields());
$fileFieldsNum = count($fileFields);
// process title-related fields that are located right after required fields with store code as field name)
for ($index = $requiredFieldsNum; $index < $fileFieldsNum; $index++) {
$titleFieldName = $fileFields[$index];
if ($this->_isStoreCodeValid($titleFieldName)) {
// if store is still valid, append this field to valid file fields
$filteredFields[$index] = $titleFieldName;
}
}
return $filteredFields;
}
/**
* Filter rates data (i.e. unset all invalid fields and check consistency)
*
* @param array $rateRawData
* @param array $invalidFields assoc array of invalid file fields
* @param array $validFields assoc array of valid file fields
* @return array
* @throws \Magento\Framework\Exception\LocalizedException
* @SuppressWarnings(PHPMD.UnusedLocalVariable)
*/
protected function _filterRateData(array $rateRawData, array $invalidFields, array $validFields)
{
$validFieldsNum = count($validFields);
foreach ($rateRawData as $rowIndex => $dataRow) {
// skip empty rows
if (count($dataRow) <= 1) {
unset($rateRawData[$rowIndex]);
continue;
}
// unset invalid fields from data row
foreach ($dataRow as $fieldIndex => $fieldValue) {
if (isset($invalidFields[$fieldIndex])) {
unset($rateRawData[$rowIndex][$fieldIndex]);
}
}
// check if number of fields in row match with number of valid fields
if (count($rateRawData[$rowIndex]) != $validFieldsNum) {
throw new \Magento\Framework\Exception\LocalizedException(__('Invalid file format.'));
}
}
return $rateRawData;
}
/**
* Compose stores cache
*
* This cache is used to quickly retrieve store ID when handling locale-specific tax rate titles
*
* @param string[] $validFields list of valid CSV file fields
* @return array
*/
protected function _composeStoreCache($validFields)
{
$storesCache = [];
$requiredFieldsNum = count($this->getRequiredCsvFields());
$validFieldsNum = count($validFields);
// title related fields located right after required fields
for ($index = $requiredFieldsNum; $index < $validFieldsNum; $index++) {
foreach ($this->_publicStores as $store) {
$storeCode = $validFields[$index];
if ($storeCode === $store->getCode()) {
$storesCache[$index] = $store->getId();
}
}
}
return $storesCache;
}
/**
* Check if public store with specified code still exists
*
* @param string $storeCode
* @return boolean
*/
protected function _isStoreCodeValid($storeCode)
{
$isStoreCodeValid = false;
foreach ($this->_publicStores as $store) {
if ($storeCode === $store->getCode()) {
$isStoreCodeValid = true;
break;
}
}
return $isStoreCodeValid;
}
/**
* Import single rate
*
* @param array $rateData
* @param array $regionsCache cache of regions of already used countries (is used to optimize performance)
* @param array $storesCache cache of stores related to tax rate titles
* @return array regions cache populated with regions related to country of imported tax rate
* @throws \Magento\Framework\Exception\LocalizedException
*/
protected function _importRate(array $rateData, array $regionsCache, array $storesCache)
{
// data with index 1 must represent country code
$countryCode = $rateData[1];
$country = $this->_countryFactory->create()->loadByCode($countryCode, 'iso2_code');
if (!$country->getId()) {
throw new \Magento\Framework\Exception\LocalizedException(__('Country code is invalid: %1', $countryCode));
}
$regionsCache = $this->_addCountryRegionsToCache($countryCode, $regionsCache);
// data with index 2 must represent region code
$regionCode = $rateData[2];
if (!empty($regionsCache[$countryCode][$regionCode])) {
$regionId = $regionsCache[$countryCode][$regionCode] == '*' ? 0 : $regionsCache[$countryCode][$regionCode];
// data with index 3 must represent postcode
$postCode = empty($rateData[3]) ? null : $rateData[3];
$modelData = [
'code' => $rateData[0],
'tax_country_id' => $rateData[1],
'tax_region_id' => $regionId,
'tax_postcode' => $postCode,
'rate' => $rateData[4],
'zip_is_range' => $rateData[5],
'zip_from' => $rateData[6],
'zip_to' => $rateData[7],
];
// try to load existing rate
/** @var $rateModel \Magento\Tax\Model\Calculation\Rate */
$rateModel = $this->_taxRateFactory->create()->loadByCode($modelData['code']);
$rateModel->addData($modelData);
// compose titles list
$rateTitles = [];
foreach ($storesCache as $fileFieldIndex => $storeId) {
$rateTitles[$storeId] = $rateData[$fileFieldIndex];
}
$rateModel->setTitle($rateTitles);
$rateModel->save();
}
return $regionsCache;
}
/**
* Add regions of the given country to regions cache
*
* @param string $countryCode
* @param array $regionsCache
* @return array
*/
protected function _addCountryRegionsToCache($countryCode, array $regionsCache)
{
if (!isset($regionsCache[$countryCode])) {
$regionsCache[$countryCode] = [];
// add 'All Regions' to the list
$regionsCache[$countryCode]['*'] = '*';
$regionCollection = clone $this->_regionCollection;
$regionCollection->addCountryFilter($countryCode);
if ($regionCollection->getSize()) {
foreach ($regionCollection as $region) {
$regionsCache[$countryCode][$region->getCode()] = $region->getRegionId();
}
}
}
return $regionsCache;
}
}