internal static void ModifySubjectProperty(PropertyBag.BasicPropertyStore item, NativeStorePropertyDefinition property, string value)
{
string text = item.GetValue(InternalSchema.SubjectPrefixInternal) as string;
string text2 = item.GetValue(InternalSchema.NormalizedSubjectInternal) as string;
string text3 = item.GetValue(InternalSchema.MapiSubject) as string;
if (property == InternalSchema.NormalizedSubjectInternal)
{
text2 = value;
if (text3 != null)
{
string text4 = SubjectProperty.ExtractPrefixUsingNormalizedSubject(text3, text2);
if (text4 != null)
{
text = text4;
}
}
if (text == null)
{
text = string.Empty;
}
}
else if (property == InternalSchema.SubjectPrefixInternal)
{
text = value;
if (text3 != null && text3.StartsWith(text, StringComparison.Ordinal))
{
text2 = text3.Substring(text.Length);
}
if (text2 == null)
{
text2 = string.Empty;
}
}
else
{
if (property != InternalSchema.MapiSubject)
{
throw new ArgumentException("Not a supported subject property", "property");
}
if (!string.IsNullOrEmpty(text) && value.StartsWith(text, StringComparison.Ordinal))
{
text2 = value.Substring(text.Length);
}
else if (!string.IsNullOrEmpty(text2))
{
string text5 = SubjectProperty.ExtractPrefixUsingNormalizedSubject(value, text2);
if (text5 != null)
{
text = text5;
}
else
{
SubjectProperty.ComputeSubjectPrefix(value, out text, out text2);
}
}
else
{
SubjectProperty.ComputeSubjectPrefix(value, out text, out text2);
}
}
text3 = text + text2;
item.SetValueWithFixup(InternalSchema.SubjectPrefixInternal, text);
item.SetValueWithFixup(InternalSchema.NormalizedSubjectInternal, text2);
item.SetValueWithFixup(InternalSchema.MapiSubject, text3);
string itemClass = item.GetValue(InternalSchema.ItemClass) as string;
if (!ObjectClass.IsPost(itemClass))
{
item.SetValueWithFixup(InternalSchema.ConversationTopic, text2);
}
}
