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#include "codecompleter.h"

#include "clangcodecompleteresults.h"
#include "clangstring.h"
#include "codecompletefailedexception.h"
#include "codecompletionsextractor.h"
#include "clangtranslationunit.h"

#include <clang-c/Index.h>

#include <QDebug>

namespace ClangBackEnd {

CodeCompleter::CodeCompleter(TranslationUnit translationUnit)
    : translationUnit(std::move(translationUnit))
{
}

CodeCompletions CodeCompleter::complete(uint line, uint column)
{
    ClangCodeCompleteResults completeResults(clang_codeCompleteAt(translationUnit.cxTranslationUnit(),
                                                                  translationUnit.filePath().constData(),
                                                                  line,
                                                                  column,
                                                                  translationUnit.cxUnsavedFiles(),
                                                                  translationUnit.unsavedFilesCount(),
                                                                  CXCodeComplete_IncludeMacros | CXCodeComplete_IncludeCodePatterns));

    CodeCompletionsExtractor extractor(completeResults.data());

    return extractor.extractAll();
}

Utf8String CodeCompleter::filePath() const
{
    return translationUnit.filePath();
}

void CodeCompleter::checkCodeCompleteResult(CXCodeCompleteResults *completeResults)
{
    if (!completeResults)
        throw CodeCompleteFailedException();
}

} // namespace ClangBackEnd