private CityTemperatures FindCityOnCitiesList(string cityName)
{
List <CityTemperatures> cities = GetCachedData();
CityTemperatures city = cities.SingleOrDefault(cityItem => cityItem.City.Equals(cityName));
return(city);
}
/// <summary>
/// Limpa a lista de temperaturas de uma cidade
/// </summary>
/// <param name="cityName"></param>
public void ClearTemperaturesFromCity(string cityName)
{
List <CityTemperatures> cities = GetCachedData();
CityTemperatures city = cities.SingleOrDefault(cityItem => cityItem.City.Equals(cityName));
if (city != null)
{
city.ResetRegistries();
}
}
public void Patch(HttpRequestMessage request, string cityName)
{
CityTemperatures data = service.LoadCityByName(cityName);
if (data == null)
{
request.CreateResponse(HttpStatusCode.NotModified);
return;
}
service.ClearTemperaturesFromCity(cityName);
}
public void Delete(HttpRequestMessage request, string cityName)
{
CityTemperatures data = service.LoadCityByName(cityName);
if (data == null)
{
request.CreateResponse(HttpStatusCode.NotModified);
return;
}
service.RemoveCityToProcessingList(cityName);
}
public string Get(HttpRequestMessage request, string cityName)
{
CityTemperatures data = service.LoadCityByName(cityName);
if (data == null)
{
request.CreateResponse(HttpStatusCode.NotModified);
return(String.Empty);
}
return(JsonConvert.SerializeObject(data));
}
public void PopulateCityWithTemperatures()
{
ClearTestList();
service.AddCityToProcessingList(cityNames[0]);
CityTemperatures city = service.LoadCityByName(cityNames[0]);
service.PopulateCityWithTemperatures(city);
Assert.IsTrue(city.Temperatures.Count > 0);
}
public void TestClearTemperaturesFromCity()
{
ClearTestList();
// Cidade exclusiva para esse teste
string cityName = "Belo Horizonte";
service.AddCityToProcessingList(cityName);
CityTemperatures city = service.LoadCityByName(cityName);
// Cidade foi registrada com sucesso
Assert.IsNotNull(city);
service.ClearTemperaturesFromCity(cityName);
}
/// <summary>
/// Mantém a lista com o máximo de X itens
/// </summary>
/// <param name="city"></param>
private void CleanOldRegistriesFromCity(CityTemperatures city)
{
List <TemperatureRegistry> oldRegistries = city.Temperatures;
int maxRegistries = Int32.Parse(Resource.MaxRegistries);
int diff = oldRegistries.Count - maxRegistries;
if (diff >= 0)
{
// Pela lógica, se a quantidade for 0 do diff, eu tenho que remover pelo menos 1 elemento, então a conta é sempre +1 do diff
int removeQuantity = diff + 1;
List <TemperatureRegistry> itemsToRemove = oldRegistries.OrderByDescending(registry => registry.Date).Take(removeQuantity).ToList();
oldRegistries.RemoveAll(registry => itemsToRemove.Contains(registry));
}
}
/// <summary>
/// Processa lista de temperaturas no registro da cidade
/// Caso já tenha estourado o limite de 30 (1 por hora, 30 no total = 30 horas) remove a mais antiga para inserir a nova
/// </summary>
/// <param name="city"></param>
public void PopulateCityWithTemperatures(CityTemperatures city)
{
string cityName = city.City;
TemperaturesData data = consumer.LoadTemperaturesData(cityName);
Results resultFromApi = data.Results;
DateTime dateTime = BuildDateTimeFromApiResults(resultFromApi);
int temp = resultFromApi.Temp;
TemperatureRegistry registry = new TemperatureRegistry(dateTime, temp);
CleanOldRegistriesFromCity(city);
city.Temperatures.Add(registry);
}
public void TestLoadCityByName()
{
ClearTestList();
string cityName = cityNames[1];
service.AddCityToProcessingList(cityName);
List <CityTemperatures> cities = service.LoadAllCities();
Assert.IsTrue(cities.Count == 1, "Lista de cidades deveria conter 1 elemento");
CityTemperatures city = service.LoadCityByName(cityName);
Assert.IsNotNull(city);
}
/// <summary>
/// Busca e adiciona uma cidade na lista de cidades
/// Retorna false se a cidade não for encontrada
/// </summary>
/// <param name="cityName"></param>
/// <returns></returns>
public bool AddCityToProcessingList(string cityName)
{
List <CityTemperatures> cities = GetCachedData();
bool alreadyRegistered = cities.Any(city => city.City.Equals(cityName));
if (alreadyRegistered)
{
return(false);
}
CityTemperatures newCity = new CityTemperatures(cityName);
PopulateCityWithTemperatures(newCity);
cities.Add(newCity);
return(true);
}
