// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0

#include "linenumberfilter.h"

#include "texteditortr.h"

#include <coreplugin/editormanager/editormanager.h>

using namespace Core;
using namespace Utils;

namespace TextEditor::Internal {

class LineNumberFilter final : public Core::ILocatorFilter
{
public:
    LineNumberFilter()
    {
        setId("Line in current document");
        setDisplayName(Tr::tr("Line in Current Document"));
        setDescription(Tr::tr("Jumps to the given line in the current document."));
        setDefaultSearchText(Tr::tr("<line>:<column>"));
        setPriority(High);
        setDefaultShortcutString("l");
        setDefaultIncludedByDefault(true);
    }

private:
    LocatorMatcherTasks matchers() final
    {
        using namespace Tasking;

        Storage<LocatorStorage> storage;

        const auto onSetup = [storage] {
            const QStringList lineAndColumn = storage->input().split(':');
            int sectionCount = lineAndColumn.size();
            int line = 0;
            int column = 0;
            bool ok = false;
            if (sectionCount > 0)
                line = lineAndColumn.at(0).toInt(&ok);
            if (ok && sectionCount > 1)
                column = lineAndColumn.at(1).toInt(&ok);
            if (!ok)
                return;
            if (EditorManager::currentEditor() && (line > 0 || column > 0)) {
                QString text;
                if (line > 0 && column > 0)
                    text = Tr::tr("Line %1, Column %2").arg(line).arg(column);
                else if (line > 0)
                    text = Tr::tr("Line %1").arg(line);
                else
                    text = Tr::tr("Column %1").arg(column);
                LocatorFilterEntry entry;
                entry.displayName = text;
                entry.acceptor = [line, targetColumn = column - 1] {
                    IEditor *editor = EditorManager::currentEditor();
                    if (!editor)
                        return AcceptResult();
                    EditorManager::addCurrentPositionToNavigationHistory();
                    editor->gotoLine(line < 1 ? editor->currentLine() : line, targetColumn);
                    EditorManager::activateEditor(editor);
                    return AcceptResult();
                };
                storage->reportOutput({entry});
            }
        };
        return {{Sync(onSetup), storage}};
    }
};

ILocatorFilter *lineNumberFilter()
{
    static LineNumberFilter theLineNumberFilter;
    return &theLineNumberFilter;
}

void setupLineNumberFilter()
{
    (void) lineNumberFilter(); // Instantiate it.
}

} // namespace TextEditor::Internal