/*
 *   SPDX-FileCopyrightText: 2011 Matthias Fuchs <mat69@gmx.net>
 *   SPDX-FileCopyrightText: 2015 Marco Martin <mart@kde.org>
 *
 *   SPDX-License-Identifier: GPL-2.0-or-later
 */

#include "comicarchivedialog.h"
#include "comicarchivejob.h"

ComicArchiveDialog::ComicArchiveDialog(const QString &pluginName,
                                       const QString &comicName,
                                       IdentifierType identifierType,
                                       const QString &currentIdentifierSuffix,
                                       const QString &firstIdentifierSuffix,
                                       const QString &savingDir,
                                       QWidget *parent)
    : QDialog(parent)
    , mIdentifierType(identifierType)
    , mPluginName(pluginName)
{
    ui.setupUi(this);
    setWindowTitle(i18nc("@title:window", "Create %1 Comic Book Archive", comicName));

    connect(ui.buttonBox, &QDialogButtonBox::accepted, this, &ComicArchiveDialog::slotOkClicked);
    connect(ui.buttonBox, &QDialogButtonBox::rejected, this, &ComicArchiveDialog::reject);

    switch (mIdentifierType) {
    case Date: {
        const QDate current = QDate::fromString(currentIdentifierSuffix, QStringLiteral("yyyy-MM-dd"));
        const QDate first = QDate::fromString(firstIdentifierSuffix, QStringLiteral("yyyy-MM-dd"));
        const QDate today = QDate::currentDate();
        QDate maxDate = today;
        if (current.isValid()) {
            ui.fromDate->setDate(current);
            ui.toDate->setDate(current);
            maxDate = (today > current ? today : current);
        }
        if (first.isValid()) {
            ui.fromDate->setMinimumDate(first);
            ui.toDate->setMinimumDate(first);
        }

        connect(ui.fromDate, &QDateTimeEdit::dateChanged, this, &ComicArchiveDialog::fromDateChanged);
        connect(ui.toDate, &QDateTimeEdit::dateChanged, this, &ComicArchiveDialog::toDateChanged);
        break;
    }
    case Number: {
        bool ok;
        const int current = currentIdentifierSuffix.toInt(&ok);
        if (ok) {
            ui.fromNumber->setValue(current);
            ui.toNumber->setValue(current);
        }
        const int first = firstIdentifierSuffix.toInt(&ok);
        if (ok) {
            ui.fromNumber->setMinimum(first);
            ui.toNumber->setMinimum(first);
        }
        break;
    }
    case String: {
        ui.fromString->setText(currentIdentifierSuffix);
        ui.toString->setText(currentIdentifierSuffix);
        connect(ui.fromString, &QLineEdit::textEdited, this, &ComicArchiveDialog::updateOkButton);
        connect(ui.toString, &QLineEdit::textEdited, this, &ComicArchiveDialog::updateOkButton);
        break;
    }
    }

    ui.types->setCurrentIndex(mIdentifierType);

    archiveTypeChanged(ComicArchiveJob::ArchiveAll);

    // TODO suggest file name!
    ui.dest->setAcceptMode(QFileDialog::AcceptSave);
    if (!savingDir.isEmpty()) {
        ui.dest->setStartDir(QUrl::fromLocalFile(savingDir));
    }

    connect(ui.archiveType, qOverload<int>(&KComboBox::currentIndexChanged), this, &ComicArchiveDialog::archiveTypeChanged);
    connect(ui.dest, &KUrlRequester::textChanged, this, &ComicArchiveDialog::updateOkButton);
}

void ComicArchiveDialog::archiveTypeChanged(int newType)
{
    switch (newType) {
    case ComicArchiveJob::ArchiveAll:
        setFromVisible(false);
        setToVisibile(false);
        break;
        break;
    case ComicArchiveJob::ArchiveEndTo:
    case ComicArchiveJob::ArchiveStartTo:
        setFromVisible(false);
        setToVisibile(true);
        break;
    case ComicArchiveJob::ArchiveFromTo:
        setFromVisible(true);
        setToVisibile(true);
        break;
    }

    updateOkButton();
}

void ComicArchiveDialog::fromDateChanged(const QDate &newDate)
{
    if (ui.toDate->date() < newDate) {
        ui.toDate->setDate(newDate);
    }
    updateOkButton();
}

void ComicArchiveDialog::toDateChanged(const QDate &newDate)
{
    if (ui.fromDate->date() > newDate) {
        ui.fromDate->setDate(newDate);
    }
    updateOkButton();
}

void ComicArchiveDialog::updateOkButton()
{
    const int archiveType = ui.archiveType->currentIndex();
    bool okEnabled = true;

    // string is handled here, as it is the only identifier which can be invalid (empty)
    if (mIdentifierType == String) {
        if (archiveType == ComicArchiveJob::ArchiveAll) {
            okEnabled = true;
        } else if (ui.archiveType->currentIndex() == ComicArchiveJob::ArchiveFromTo) {
            okEnabled = !ui.fromString->text().isEmpty() && !ui.toString->text().isEmpty();
        } else {
            okEnabled = !ui.toString->text().isEmpty();
        }
    }

    okEnabled = (okEnabled && !ui.dest->url().isEmpty());
    ui.buttonBox->button(QDialogButtonBox::Ok)->setEnabled(okEnabled);
}

void ComicArchiveDialog::slotOkClicked()
{
    const int archiveType = ui.archiveType->currentIndex();
    QString fromIdentifier;
    QString toIdentifier;

    switch (mIdentifierType) {
    case Date:
        fromIdentifier = ui.fromDate->date().toString(QStringLiteral("yyyy-MM-dd"));
        toIdentifier = ui.toDate->date().toString(QStringLiteral("yyyy-MM-dd"));
        break;
    case Number: {
        fromIdentifier = QString::number(ui.fromNumber->value());
        toIdentifier = QString::number(ui.toNumber->value());
        // the user entered from and to wrong, swap them
        if ((archiveType == ComicArchiveJob::ArchiveFromTo) && (ui.toNumber->value() < ui.fromNumber->value())) {
            QString temp = fromIdentifier;
            fromIdentifier = toIdentifier;
            toIdentifier = temp;
        }
        break;
    }
    case String:
        fromIdentifier = ui.fromString->text();
        toIdentifier = ui.toString->text();
        break;
    }

    emit archive(archiveType, ui.dest->url(), fromIdentifier, toIdentifier);
    accept();
}

void ComicArchiveDialog::setFromVisible(bool visible)
{
    ui.fromDateLabel->setVisible(visible);
    ui.fromDate->setVisible(visible);
    ui.fromNumberLabel->setVisible(visible);
    ui.fromNumber->setVisible(visible);
    ui.fromStringLabel->setVisible(visible);
    ui.fromString->setVisible(visible);
}

void ComicArchiveDialog::setToVisibile(bool visible)
{
    ui.toDateLabel->setVisible(visible);
    ui.toDate->setVisible(visible);
    ui.toNumberLabel->setVisible(visible);
    ui.toNumber->setVisible(visible);
    ui.toStringLabel->setVisible(visible);
    ui.toString->setVisible(visible);
}
