/// <summary>
/// Gets tax rate
/// </summary>
/// <param name="taxRateRequest">Tax rate request</param>
/// <returns>Tax</returns>
public TaxRateResult GetTaxRate(TaxRateRequest taxRateRequest)
{
var result = new TaxRateResult();
//the tax rate calculation by fixed rate
if (!_countryStateZipSettings.CountryStateZipEnabled)
{
result.TaxRate = _settingService.GetSettingByKey <decimal>(string.Format(FixedOrByCountryStateZipDefaults.FixedRateSettingsKey, taxRateRequest.TaxCategoryId));
return(result);
}
//the tax rate calculation by country & state & zip
if (taxRateRequest.Address == null)
{
result.Errors.Add("Address is not set");
return(result);
}
//first, load all tax rate records (cached) - loaded only once
var cacheKey = _cacheKeyService.PrepareKeyForDefaultCache(ModelCacheEventConsumer.ALL_TAX_RATES_MODEL_KEY);
var allTaxRates = _staticCacheManager.Get(cacheKey, () => _taxRateService.GetAllTaxRates().Select(taxRate => new TaxRate
{
Id = taxRate.Id,
StoreId = taxRate.StoreId,
TaxCategoryId = taxRate.TaxCategoryId,
CountryId = taxRate.CountryId,
StateProvinceId = taxRate.StateProvinceId,
Zip = taxRate.Zip,
Percentage = taxRate.Percentage
}).ToList());
var storeId = taxRateRequest.CurrentStoreId;
var taxCategoryId = taxRateRequest.TaxCategoryId;
var countryId = taxRateRequest.Address.CountryId;
var stateProvinceId = taxRateRequest.Address.StateProvinceId;
var zip = taxRateRequest.Address.ZipPostalCode?.Trim() ?? string.Empty;
var existingRates = allTaxRates.Where(taxRate => taxRate.CountryId == countryId && taxRate.TaxCategoryId == taxCategoryId);
//filter by store
var matchedByStore = existingRates.Where(taxRate => storeId == taxRate.StoreId || taxRate.StoreId == 0);
//filter by state/province
var matchedByStateProvince = matchedByStore.Where(taxRate => stateProvinceId == taxRate.StateProvinceId || taxRate.StateProvinceId == 0);
//filter by zip
var matchedByZip = matchedByStateProvince.Where(taxRate => string.IsNullOrWhiteSpace(taxRate.Zip) || taxRate.Zip.Equals(zip, StringComparison.InvariantCultureIgnoreCase));
//sort from particular to general, more particular cases will be the first
var foundRecords = matchedByZip.OrderBy(r => r.StoreId == 0).ThenBy(r => r.StateProvinceId == 0).ThenBy(r => string.IsNullOrEmpty(r.Zip));
var foundRecord = foundRecords.FirstOrDefault();
if (foundRecord != null)
{
result.TaxRate = foundRecord.Percentage;
}
return(result);
}
public async Task <TaxRateResult> GetTaxRateAsync(TaxRateRequest taxRateRequest)
{
var result = new TaxRateResult();
//the tax rate calculation by country & state & zip
if (taxRateRequest.Address == null)
{
result.Errors.Add("Address is not set");
return(result);
}
var foundRecord = await _abcTaxService.GetAbcTaxRateAsync(
taxRateRequest.CurrentStoreId,
taxRateRequest.TaxCategoryId,
taxRateRequest.Address
);
if (foundRecord == null)
{
return(result);
}
// get TaxJar rate if appropriate
result.TaxRate = foundRecord.IsTaxJarEnabled ?
await _taxjarRateService.GetTaxJarRateAsync(taxRateRequest.Address) :
foundRecord.Percentage;
return(result);
}
public async Task <TaxRateResult> CalculateAsync(Proxy proxy, string api, TaxRequest request)
{
return(await Task.Factory.StartNew(() =>
{
HttpWebRequest webRequest = WebRequest.Create("https://api.printful.com/tax/rates") as HttpWebRequest;
if (proxy != null)
{
webRequest.Proxy = proxy.Get();
webRequest.Credentials = proxy.GetCredential();
}
webRequest.Method = "POST";
webRequest.ContentType = "application/json; charset=utf-8";
webRequest.Headers.Add("Authorization", "Basic " + Manager.API.Encode(api));
string data = JsonConvert.SerializeObject(request);
byte[] data_form = Encoding.UTF8.GetBytes(data);
webRequest.ContentLength = data_form.Length;
Stream newStream = webRequest.GetRequestStream();
// Send the data.
newStream.Write(data_form, 0, data_form.Length);
newStream.Close();
WebResponse response = webRequest.GetResponse();
if (((HttpWebResponse)response).StatusCode == HttpStatusCode.OK)
{
// Get the stream containing content returned by the server.
Stream dataStream = response.GetResponseStream();
if (dataStream != null)
{
// Open the stream using a StreamReader for easy access.
StreamReader reader = new StreamReader(dataStream);
// Read the content.
string responseFromServer = reader.ReadToEnd();
// Display the content.
TaxRateResult result =
JsonConvert.DeserializeObject <TaxRateResult>(responseFromServer, Converter.Settings);
return result;
}
}
return null;
}));
}
/// <summary>
/// Ctor
/// </summary>
/// <param name="taxRateResult">Tax rate result</param>
public TaxRateCalculatedEvent(TaxRateResult taxRateResult)
{
TaxRateResult = taxRateResult;
}
