/*
 * Copyright (C) 2020-2022 Roy Qu (royqh1979@gmail.com)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
#include "shortcutmanager.h"
#include "systemconsts.h"
#include "settings.h"
#include <QAction>
#include <QFile>
#include <QJsonArray>
#include <QJsonDocument>
#include <QJsonObject>
#include <QJsonValue>
#include <QMessageBox>

ShortcutManager::ShortcutManager(QObject *parent) : QObject(parent)
{

}

void ShortcutManager::load()
{
    //if config file not exists, copy it from data
    QString filename = includeTrailingPathDelimiter(pSettings->dirs().config()) + DEV_SHORTCUT_FILE;
    if (!fileExists(filename))
        return;
    //read config file
    QFile file(filename);
    if (!file.open(QFile::ReadOnly)) {
        QMessageBox::critical(nullptr,
                              tr("Read shortcut config failed"),
                              tr("Can't open shortcut config file '%1' for read.")
                              .arg(filename));
        return;
    }

    QByteArray json = file.readAll().trimmed();
    if (json.isEmpty())
        return;
    QJsonParseError error;
    QJsonDocument doc = QJsonDocument::fromJson(json,&error);
    if (error.error != QJsonParseError::NoError) {
        QMessageBox::critical(nullptr,
                              tr("Read shortcut config failed"),
                              tr("Read shortcut config file '%1' failed:%2")
                              .arg(filename)
                              .arg(error.errorString()));
        return;
    }
    mShortcuts.clear();
    QJsonArray array = doc.array();
    foreach (const QJsonValue& value,array) {
        QJsonObject object = value.toObject();
        PEnvironmentShortcut shortcut = std::make_shared<EnvironmentShortcut>();
        shortcut->name = object["name"].toString();
        if (shortcut->name.isEmpty())
            continue;
        shortcut->shortcut = object["shortcut"].toString();
        if (object["isAction"].isNull())
            shortcut->isAction = true;
        else
            shortcut->isAction = object["isAction"].toBool();
        mShortcuts.insert(shortcut->name,shortcut);
    }
}

void ShortcutManager::save()
{
    QString filename = includeTrailingPathDelimiter(pSettings->dirs().config()) + DEV_SHORTCUT_FILE;
    QFile file(filename);
    if (!file.open(QFile::WriteOnly | QFile::Truncate)) {
        QMessageBox::critical(nullptr,
                              tr("Save shortcut config failed"),
                              tr("Can't open shortcut config file '%1' for write.")
                              .arg(filename));
        return;
    }
    QJsonArray array;
    foreach (const PEnvironmentShortcut& shortcut,mShortcuts) {
        QJsonObject object;
        object["name"]=shortcut->name;
        object["shortcut"]=shortcut->shortcut;
        object["isAction"]=shortcut->isAction;
        array.append(object);
    }
    QJsonDocument doc;
    doc.setArray(array);
    if (file.write(doc.toJson())<0) {
        QMessageBox::critical(nullptr,
                              tr("Save shortcut config failed"),
                              tr("Write to shortcut config file '%1' failed.")
                              .arg(filename));
        return;
    }
}

void ShortcutManager::setShortcuts(QList<PEnvironmentShortcut> shortcuts)
{
    mShortcuts.clear();
    foreach(PEnvironmentShortcut shortcut, shortcuts) {
        if (shortcut->name.isEmpty())
            continue;
        mShortcuts.insert(shortcut->name,shortcut);
    }
}

void ShortcutManager::applyTo(QList<QAction *> actions)
{
    foreach (QAction* action ,actions) {
        applyTo(action);
    }
}

void ShortcutManager::applyTo(QAction *action)
{
    PEnvironmentShortcut item = mShortcuts.value(action->objectName(), PEnvironmentShortcut());
    if (item && item->isAction) {
        action->setShortcut(QKeySequence::fromString(item->shortcut));
    }
    if (!action->shortcut().isEmpty()){
        action->setToolTip(action->text()+QString("(%1)").arg(action->shortcut().toString()));
    } else {
        action->setToolTip(action->text());
    }
}