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#include "clangupdatedocumentannotationsjob.h"

#include <clangbackendipc/clangbackendipcdebugutils.h>
#include <clangbackendipc/clangcodemodelclientinterface.h>
#include <clangbackendipc/documentannotationschangedmessage.h>

#include <utils/qtcassert.h>

namespace ClangBackEnd {

static UpdateDocumentAnnotationsJob::AsyncResult runAsyncHelper(
        const TranslationUnit &translationUnit,
        const TranslationUnitUpdateInput &translationUnitUpdatInput)
{
    TIME_SCOPE_DURATION("UpdateDocumentAnnotationsJobRunner");

    UpdateDocumentAnnotationsJob::AsyncResult asyncResult;

    try {
        // Update
        asyncResult.updateResult = translationUnit.update(translationUnitUpdatInput);

        // Collect
        translationUnit.extractDocumentAnnotations(asyncResult.diagnostics,
                                                   asyncResult.highlightingMarks,
                                                   asyncResult.skippedSourceRanges);

    } catch (const std::exception &exception) {
        qWarning() << "Error in UpdateDocumentAnnotationsJobRunner:" << exception.what();
    }

    return asyncResult;
}

bool UpdateDocumentAnnotationsJob::prepareAsyncRun()
{
    const JobRequest jobRequest = context().jobRequest;
    QTC_ASSERT(jobRequest.type == JobRequest::Type::UpdateDocumentAnnotations, return false);

    try {
        m_pinnedDocument = context().documentForJobRequest();
        m_pinnedFileContainer = m_pinnedDocument.fileContainer();

        const TranslationUnit translationUnit = m_pinnedDocument.translationUnit();
        const TranslationUnitUpdateInput updateInput = m_pinnedDocument.createUpdateInput();
        setRunner([translationUnit, updateInput]() {
            return runAsyncHelper(translationUnit, updateInput);
        });

    } catch (const std::exception &exception) {
        qWarning() << "Error in UpdateDocumentAnnotationsJob::prepareAsyncRun:" << exception.what();
        return false;
    }

    return true;
}

void UpdateDocumentAnnotationsJob::finalizeAsyncRun()
{
    if (!context().isOutdated()) {
        const AsyncResult result = asyncResult();

        incorporateUpdaterResult(result);
        sendAnnotations(result);
    }
}

void UpdateDocumentAnnotationsJob::incorporateUpdaterResult(const AsyncResult &result)
{
    m_pinnedDocument.incorporateUpdaterResult(result.updateResult);
}

void UpdateDocumentAnnotationsJob::sendAnnotations(const AsyncResult &result)
{
    const DocumentAnnotationsChangedMessage message(m_pinnedFileContainer,
                                                    result.diagnostics,
                                                    result.highlightingMarks,
                                                    result.skippedSourceRanges);

    context().client->documentAnnotationsChanged(message);
}

} // namespace ClangBackEnd