/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/

#include "clangtextmark.h"

#include "clangconstants.h"
#include "clangdiagnostictooltipwidget.h"

#include <utils/icon.h>
#include <utils/qtcassert.h>
#include <utils/theme/theme.h>

#include <QApplication>
#include <QLayout>
#include <QString>

namespace ClangCodeModel {

namespace {

bool isWarningOrNote(ClangBackEnd::DiagnosticSeverity severity)
{
    using ClangBackEnd::DiagnosticSeverity;
    switch (severity) {
        case DiagnosticSeverity::Ignored:
        case DiagnosticSeverity::Note:
        case DiagnosticSeverity::Warning: return true;
        case DiagnosticSeverity::Error:
        case DiagnosticSeverity::Fatal: return false;
    }

    Q_UNREACHABLE();
}

Core::Id cartegoryForSeverity(ClangBackEnd::DiagnosticSeverity severity)
{
    return isWarningOrNote(severity) ? Constants::CLANG_WARNING : Constants::CLANG_ERROR;
}

} // anonymous namespace


ClangTextMark::ClangTextMark(const QString &fileName,
                             const ClangBackEnd::DiagnosticContainer &diagnostic,
                             const RemovedFromEditorHandler &removedHandler,
                             bool showLineAnnotations)
    : TextEditor::TextMark(fileName,
                           int(diagnostic.location().line()),
                           cartegoryForSeverity(diagnostic.severity()))
    , m_diagnostic(diagnostic)
    , m_removedFromEditorHandler(removedHandler)
{
    const bool warning = isWarningOrNote(diagnostic.severity());
    setColor(warning ? Utils::Theme::ClangCodeModel_Warning_TextMarkColor
                     : Utils::Theme::ClangCodeModel_Error_TextMarkColor);
    setDefaultToolTip(warning ? QApplication::translate("Clang Code Model Marks", "Code Model Warning")
                              : QApplication::translate("Clang Code Model Marks", "Code Model Error"));
    setPriority(warning ? TextEditor::TextMark::NormalPriority
                        : TextEditor::TextMark::HighPriority);
    updateIcon();
    if (showLineAnnotations)
        setLineAnnotation(diagnostic.text().toString());
}

void ClangTextMark::updateIcon(bool valid)
{
    static const QIcon errorIcon = Utils::Icon(
        {{":/clangcodemodel/images/error.png", Utils::Theme::IconsErrorColor}},
        Utils::Icon::Tint).icon();
    static const QIcon warningIcon = Utils::Icon(
        {{":/clangcodemodel/images/warning.png", Utils::Theme::IconsWarningColor}},
        Utils::Icon::Tint).icon();
    static const QIcon invalidErrorIcon = Utils::Icon(
        {{":/clangcodemodel/images/error.png", Utils::Theme::IconsDisabledColor}},
        Utils::Icon::Tint).icon();
    static const QIcon invalidWarningIcon = Utils::Icon(
        {{":/clangcodemodel/images/warning.png", Utils::Theme::IconsDisabledColor}},
        Utils::Icon::Tint).icon();

    if (isWarningOrNote(m_diagnostic.severity()))
        setIcon(valid ? warningIcon : invalidWarningIcon);
    else
        setIcon(valid ? errorIcon : invalidErrorIcon);
}

bool ClangTextMark::addToolTipContent(QLayout *target) const
{
    using Internal::ClangDiagnosticWidget;

    QWidget *widget = ClangDiagnosticWidget::create({m_diagnostic}, ClangDiagnosticWidget::ToolTip);
    target->addWidget(widget);

    return true;
}

void ClangTextMark::removedFromEditor()
{
    QTC_ASSERT(m_removedFromEditorHandler, return);
    m_removedFromEditorHandler(this);
}

} // namespace ClangCodeModel