#include "parsedtoken.h"
#include "ctags_manager.h"

ParsedToken::ParsedToken()
	: m_isTemplate(false)
	, m_subscriptOperator(false)
	, m_next(NULL)
	, m_prev(NULL)
{
}

ParsedToken::~ParsedToken()
{
}

void ParsedToken::DeleteTokens(ParsedToken* head)
{
	if( !head ) {
		return;
	}

	ParsedToken *n     (head);
	ParsedToken *tmpPtr(NULL);
	while( n ) {
		tmpPtr = n->GetNext();
		delete n;

		n = tmpPtr;
	}
}

wxString ParsedToken::GetPath() const
{
	wxString path;
	if (m_typeScope != wxT("<global>"))
		path << m_typeScope << wxT("::");

	path << m_type;
	return path;
}

wxString ParsedToken::GetContextScope() const
{
	if(GetCurrentScopeName() == GetName() && GetPrev() == NULL) {
		// the scope name is equal the 'name'?
		// copy ctor
		return wxT("<global>");
	}

	if(GetPrev() == NULL) {
		// we are the first in chain, return the current scope name
		return GetCurrentScopeName();
	} else {
		return GetPrev()->GetPath();
	}
}

void ParsedToken::RemoveScopeFromType()
{
	//incase the realName already includes the scope, remove it from the typename
	if (!GetTypeScope().IsEmpty() && GetTypeName().StartsWith(GetTypeScope() + wxT("::"))) {
		wxString tt;
		GetTypeName().StartsWith(GetTypeScope() + wxT("::"), &tt);
		SetTypeName(tt);
	}

	// If the typeName already contains a scope in it, replace the
	// scopename with it
	if(GetTypeName().Contains(wxT("::"))) {
		m_typeScope.Clear();
		wxString tmpTypeName(m_type);
		m_type      = tmpTypeName.AfterLast(wxT(':'));
		m_typeScope = tmpTypeName.BeforeLast(wxT(':'));

		if(m_typeScope.EndsWith(wxT(":"))) {
			m_typeScope.Truncate(m_typeScope.Length() - 1);
		}
	}
}

bool ParsedToken::ResovleTemplate( TagsManager *lookup )
{
	wxString oldName = m_type;
	if (!lookup->GetDatabase()->IsTypeAndScopeExistLimitOne(m_type, m_typeScope)) {

		// Loop until the end of the chain and see if any of the context is template
		ParsedToken *cur = this;
		while( cur ) {
			if( cur->GetIsTemplate() ) {
				// our context is template
				wxString newType = cur->TemplateToType( m_type );

				if(newType != m_type) {
					m_type = newType;
					RemoveScopeFromType();
					return true;
				}
			}
			cur = cur->GetPrev();
		}
	}
	return false;
}

wxString ParsedToken::TemplateToType(const wxString& templateArg)
{
	int where = m_templateArgList.Index(templateArg);
	if (where != wxNOT_FOUND) {
		// it exists, return the name in the templateInstantiation list
		if (m_templateInitialization.GetCount() > (size_t)where && m_templateInitialization.Item(where) != templateArg)
			return m_templateInitialization.Item(where);
	}
	return templateArg;
}

void ParsedToken::ResolveTemplateType(TagsManager* lookup)
{
	for(size_t i=0; i<m_templateInitialization.GetCount(); i++) {
		if (!lookup->GetDatabase()->IsTypeAndScopeExistLimitOne(m_templateInitialization.Item(i), wxT("<global>"))) {

			// Loop until the end of the chain and see if any of the context is template
			ParsedToken *cur = this;
			while( cur ) {
				if( cur->GetIsTemplate() ) {
					// our context is template
					wxString newType = cur->TemplateToType( m_templateInitialization.Item(i) );

					if(newType != m_templateInitialization.Item(i)) {
						m_templateInitialization.Item(i) = newType;
						break;
					}
				}
				cur = cur->GetPrev();
			}
		}
	}
}

bool ParsedToken::IsThis() const
{
	return m_name == wxT("this");
}
