private Element GetTagObject(Element element, string line, ILineValueExtractor lineValueExtractor)
{
var tagElement = (from childTag in element.Elements.Where(x => x.ElementType == ElementType.Tag)
let childTagValue = lineValueExtractor.Extract(line, childTag)
where childTagValue.IsFound && childTagValue.Value == childTag.Tag
select childTag).FirstOrDefault();
return(tagElement);
}
private void ParseWithTag <T>(Element parentElement, Element element, object parentInstance, PropertyInfo listPropertyInfo, Result <T> result, string[] lines, ILineValueExtractor lineValueExtractor, ref int linePosition, ref bool continueParsing)
{
for (var i = linePosition; i < lines.Length; i++)
{
linePosition = i;
var parentElementTagValue = lineValueExtractor.Extract(lines[i], parentElement);
if (parentElementTagValue.IsFound && parentElementTagValue.Value == parentElement.Tag)
{
linePosition--;
return;
}
var tagValue = lineValueExtractor.Extract(lines[i], element);
if (!tagValue.IsFound || string.IsNullOrEmpty(tagValue.Value))
{
result.Errors.Add($"Line {i} does not contain any valid tag.");
continueParsing = false;
return;
}
if (tagValue.Value != element.Tag)
{
var tagElement = GetTagObject(element, lines[i], lineValueExtractor);
if (tagElement != null)
{
var lastInstance = GetLastFromList(element.Type, listPropertyInfo, parentInstance);
var childListPropertyInfo = lastInstance.GetType().GetProperty(tagElement.Name);
if (childListPropertyInfo.GetValue(lastInstance) == null)
{
childListPropertyInfo.SetValue(lastInstance, Activator.CreateInstance(childListPropertyInfo.PropertyType));
}
ParseWithTag(element, tagElement, lastInstance, childListPropertyInfo, result, lines, lineValueExtractor, ref linePosition, ref continueParsing);
return;
}
linePosition--;
return;
}
var newObject = Activator.CreateInstance(element.Type);
listPropertyInfo.PropertyType.GetMethod("Add").Invoke(listPropertyInfo.GetValue(parentInstance), new[] { newObject });
var propertyElements = element.Elements.Where(child => child.ElementType == ElementType.Property).ToList();
foreach (var propertyElement in propertyElements)
{
var propertyValue = lineValueExtractor.Extract(lines[i], propertyElement, element);
if ((!propertyValue.IsFound || string.IsNullOrEmpty(propertyValue.Value)) && propertyElement.Required)
{
result.Errors.Add($"Property {propertyElement.Name} is missing at Line {i}.");
}
var propertyInfo = element.Type.GetProperty(propertyElement.Name, BindingFlags.Public | BindingFlags.Instance);
var isSet = _valueSetter.Set(propertyInfo, propertyValue.Value, newObject);
if (!isSet)
{
result.Errors.Add($"Value of Property {propertyElement.Name} is not valid at Line {i}.");
}
}
}
}