/// <summary>
/// Generates choose/when statements to parse values from configuration string
/// </summary>
/// <param name="propertyName">name of property to parse</param>
/// <param name="project">project to update</param>
private void ParseProperties(string propertyName, ProjectRootElement project, bool includeAdditionalProperites, Func <PropertyInfo, bool> configurationSelector, string parsedValuePrefix = null)
{
var parseConfigurationPropertyGroup = project.LastChild as ProjectPropertyGroupElement;
if (parseConfigurationPropertyGroup == null || !string.IsNullOrEmpty(project.LastChild.Condition))
{
parseConfigurationPropertyGroup = project.CreatePropertyGroupElement();
project.AppendChild(parseConfigurationPropertyGroup);
}
// delimit property for parsing, this guarantees that every property value is surrounded in delimiters
var parsePropertyName = $"_parse_{propertyName}";
var parseConfigurationValue = $"{ConfigurationFactory.PropertySeparator}$({propertyName}){ConfigurationFactory.PropertySeparator}";
parseConfigurationPropertyGroup.AddProperty(parsePropertyName, parseConfigurationValue);
// foreach property, pull it out of Configuration and set derived values.
foreach (var property in ConfigurationFactory.GetProperties().Where(configurationSelector))
{
var choosePropertiesElement = project.CreateChooseElement();
project.AppendChild(choosePropertiesElement);
foreach (var value in ConfigurationFactory.GetValues(property))
{
var propertiesCondition = CreateContainsCondition(parsePropertyName, ConfigurationFactory.PropertySeparator + value.Value + ConfigurationFactory.PropertySeparator);
var whenPropertiesElement = project.CreateWhenElement(propertiesCondition);
choosePropertiesElement.AppendChild(whenPropertiesElement);
AddProperties(whenPropertiesElement, value, includeAdditionalProperites, parsedValuePrefix);
}
if (property.Insignificant)
{
// for insignificant properties, don't overwrite with default if already set, but derive values from it.
foreach (var value in ConfigurationFactory.GetValues(property))
{
var propertiesCondition = $"'$({property.Name})' == '{value.Value}'";
var whenPropertiesElement = project.CreateWhenElement(propertiesCondition);
choosePropertiesElement.AppendChild(whenPropertiesElement);
// only write additionalProperties since actual property is already set,.
AddProperties(whenPropertiesElement, value, includeAdditionalProperites, parsedValuePrefix, includePropertyValue: false);
}
}
var otherwisePropertiesElement = project.CreateOtherwiseElement();
choosePropertiesElement.AppendChild(otherwisePropertiesElement);
if (property.DefaultValue != null)
{
AddProperties(otherwisePropertiesElement, property.DefaultValue, includeAdditionalProperites, parsedValuePrefix);
}
else
{
var otherwiseErrorPropertyGroup = project.CreatePropertyGroupElement();
otherwisePropertiesElement.AppendChild(otherwiseErrorPropertyGroup);
otherwiseErrorPropertyGroup.AddProperty(ErrorMessageProperty, $"$({ErrorMessageProperty})Could not find a value for {property.Name} from {propertyName} '$({propertyName})'.");
}
}
}