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#include "clangqueryhoverhandler.h"

#include "clangqueryhighlighter.h"

#include <dynamicastmatcherdiagnosticmessagecontainer.h>

#include <texteditor/texteditor.h>
#include <utils/executeondestruction.h>

namespace ClangRefactoring {

ClangQueryHoverHandler::ClangQueryHoverHandler(ClangQueryHighlighter *highligher)
    : m_highligher(highligher)
{
}

void ClangQueryHoverHandler::identifyMatch(TextEditor::TextEditorWidget *editorWidget,
                                           int position,
                                           ReportPriority report)
{
    Utils::ExecuteOnDestruction reportPriority([this, report](){ report(priority()); });

    using Messages = ClangBackEnd::DynamicASTMatcherDiagnosticMessageContainers;
    using Contexts = ClangBackEnd::DynamicASTMatcherDiagnosticContextContainers;

    QTextCursor textCursor = editorWidget->textCursor();
    textCursor.setPosition(position);
    int line = textCursor.blockNumber() + 1;
    int column = textCursor.columnNumber() + 1;

    Messages messages = m_highligher->messagesForLineAndColumn(uint(line), uint(column));
    Contexts contexts = m_highligher->contextsForLineAndColumn(uint(line), uint(column));

    if (!messages.empty())
        setToolTip(QString("%1: %2").arg(QString(messages[0].errorTypeText())).arg(QString(messages[0].arguments.join(", "))));
    else if (!contexts.empty())
        setToolTip(QString("%1: %2").arg(QString(contexts[0].contextTypeText())).arg(QString(contexts[0].arguments.join(", "))));
}

} // namespace ClangRefactoring
