/*
   SPDX-FileCopyrightText: 2019-2026 Laurent Montel <montel@kde.org>

   SPDX-License-Identifier: GPL-2.0-or-later
*/

#include "grammalectewidget.h"

#include "grammalecte/grammalecteconfigdialog.h"
#include "grammalecte/grammalecteresultjob.h"
#include <TextGrammarCheck/GrammalecteManager>

#include "grammalecte/grammalecteparser.h"
#include "grammalecte/grammalecteresultwidget.h"
#include <QDebug>
#include <QJsonDocument>
#include <QJsonObject>
#include <QPointer>
#include <QPushButton>
#include <QStandardPaths>
#include <QTextBlock>
#include <QTextEdit>
#include <QVBoxLayout>

using namespace Qt::Literals::StringLiterals;
GrammalecteWidget::GrammalecteWidget(QWidget *parent)
    : QWidget(parent)
    , mResultWidget(new TextGrammarCheck::GrammalecteResultWidget(this))
{
    QStandardPaths::setTestModeEnabled(true);
    auto mainLayout = new QVBoxLayout(this);

    auto button = new QPushButton(u"Check Grammar"_s, this);
    mainLayout->addWidget(button);

    auto checkSettingsButton = new QPushButton(u"Get Settings"_s, this);
    mainLayout->addWidget(checkSettingsButton);

    mInput = new QTextEdit(this);
    mainLayout->addWidget(mInput);

    mainLayout->addWidget(mResultWidget);
    connect(mResultWidget, &TextGrammarCheck::GrammalecteResultWidget::replaceText, this, &GrammalecteWidget::slotReplaceText);
    connect(mResultWidget, &TextGrammarCheck::GrammalecteResultWidget::configure, this, &GrammalecteWidget::slotConfigure);

    connect(button, &QPushButton::clicked, this, &GrammalecteWidget::slotCheckGrammar);
    connect(checkSettingsButton, &QPushButton::clicked, this, &GrammalecteWidget::slotGetSettings);
}

GrammalecteWidget::~GrammalecteWidget() = default;

void GrammalecteWidget::slotConfigure()
{
    QPointer<TextGrammarCheck::GrammalecteConfigDialog> dlg = new TextGrammarCheck::GrammalecteConfigDialog(this);
    if (dlg->exec()) {
        TextGrammarCheck::GrammalecteManager::self()->loadSettings();
    }
    delete dlg;
}

void GrammalecteWidget::slotReplaceText(const TextGrammarCheck::GrammarAction &act)
{
    QTextBlock block = mInput->document()->findBlockByNumber(act.blockId() - 1);
    if (block.isValid()) {
        QTextCursor cur(block);
        const int position = cur.position() + act.start();
        cur.setPosition(position);
        cur.setPosition(position + act.length(), QTextCursor::KeepAnchor);
        cur.insertText(act.replacement());
    }
}

void GrammalecteWidget::slotGetSettings()
{
    auto job = new TextGrammarCheck::GrammalecteGenerateConfigOptionJob(this);
    job->setPythonPath(u"/usr/bin/python3"_s);
    job->setGrammarlecteCliPath(u"/compile/kde5/framework/kde/pim/grammalecte/grammalecte-cli.py"_s);
    connect(job, &TextGrammarCheck::GrammalecteGenerateConfigOptionJob::finished, this, &GrammalecteWidget::slotGetSettingsFinished);
    job->start();
}

void GrammalecteWidget::slotGetSettingsFinished(const QVector<TextGrammarCheck::GrammalecteGenerateConfigOptionJob::Option> &result)
{
}

void GrammalecteWidget::slotCheckGrammar()
{
    auto job = new TextGrammarCheck::GrammalecteResultJob(this);
    job->setPythonPath(u"/usr/bin/python3"_s);
    job->setGrammarlecteCliPath(u"/compile/kde5/framework/kde/pim/grammalecte/grammalecte-cli.py"_s);
    job->setText(mInput->toPlainText());
    connect(job, &TextGrammarCheck::GrammalecteResultJob::finished, this, &GrammalecteWidget::slotResultFinished);
    job->start();
}

void GrammalecteWidget::slotResultFinished(const QString &result)
{
    qDebug() << " result" << result;
    mResultWidget->setText(mInput->toPlainText());
    TextGrammarCheck::GrammalecteParser parser;
    const QJsonDocument doc = QJsonDocument::fromJson(result.toUtf8());
    const QJsonObject fields = doc.object();
    mResultWidget->applyGrammarResult(parser.parseResult(fields));
}

#include "moc_grammalectewidget.cpp"
