private void AddParameters(StringBuilder urlBuilder, IAvitoRequestSettings settings)
{
const char PARAMETER_START = '?';
if (settings.HasParameters)
{
urlBuilder.Append(PARAMETER_START);
urlBuilder.Append(settings.DefaultParameter);
AddDistrictsParameter(urlBuilder, settings.Districts);
AddFactors(urlBuilder, settings);
AddPayMaxParameter(urlBuilder, settings.PayMax);
AddPayMinParameter(urlBuilder, settings.PayMin);
}
}
private void AddFactors(StringBuilder urlBuilder, IAvitoRequestSettings settings)
{
const char FACTOR_DEVIDER = '.';
var factors = new List <string>();
AddIfNotNull(factors, GetMaterialFactor(settings.Materials));
AddIfNotNull(factors, GetFirstFloorFactor(settings.FirstFloor));
AddIfNotNull(factors, GetHouseFloorFactor(settings.HouseFloor));
AddIfNotNull(factors, GetSquareFactor(settings.MinSquare, settings.MaxSquare));
urlBuilder.Append(PARAMETER_DEVIDER);
var factorsParameterBuilder = new StringBuilder("f=");
factors.ForEach(f => factorsParameterBuilder.Append($"{f}{FACTOR_DEVIDER}"));
urlBuilder.Append(factorsParameterBuilder.ToString().TrimEnd(FACTOR_DEVIDER));
}
public string GetUrl(IAvitoRequestSettings settings)
{
var urlBuilder = new StringBuilder(AVITO_MAIN_URL);
foreach (var segment in settings.Segments)
{
urlBuilder.Append($"/{segment}");
}
AddParameters(urlBuilder, settings);
try {
var url = new Uri(urlBuilder.ToString());
return(url.ToString());
} catch (Exception ex) {
throw new Exception("Не получается построить урл", ex);
}
}
public async Task <string> Get(IAvitoRequestSettings settings)
{
var url = _urlHelper.GetUrl(settings);
return(await _avitoDataGetter.Get(url));
}
