#include "example.h"
#include "ui_example.h"

int main (int argc, char *argv[])
{
    QApplication app (argc, argv);
    app.setApplicationName ("QSimpleUpdater Example");

    // Create the dialog and show it
    Example example;
    example.show();

    // Run the app
    return app.exec();
}

Example::Example (QWidget *parent) : QDialog (parent), ui (new Ui::Example)
{
    // Create and configure the user interface
    ui->setupUi (this);
    ui->versionLineEdit->setText ("0.1");
    ui->versionLineEdit->setPlaceholderText ("0.1");
    ui->changelogTextEdit->setPlainText ("Click the \"Check for updates\" button to download the change log");

    // Close the dialog when the close button is clicked
    connect (ui->closeButton, SIGNAL (clicked()), this, SLOT (close()));

    // Check for updates when the updates button is clicked
    connect (ui->updatesButton, SIGNAL (clicked()), this, SLOT (checkForUpdates()));

    // Initialize the updater
    updater = new QSimpleUpdater (this);

    // When the updater finishes checking for updates, show a message box
    // and show the change log of the latest version
    connect (updater, SIGNAL (checkingFinished()), this, SLOT (onCheckingFinished()));
}

Example::~Example()
{
    delete ui;
}

void Example::checkForUpdates()
{
    // Disable the check for updates button while the updater
    // is checking for updates
    ui->updatesButton->setEnabled (false);
    ui->updatesButton->setText ("Checking for updates...");

    // If the user changed the text of the versionLineEdit, then change the
    // application version in the updater too
    if (!ui->versionLineEdit->text().isEmpty())
        updater->setApplicationVersion (ui->versionLineEdit->text());

    // If the versionLineEdit is empty, then set the application version
    // to "0.1"
    else
        updater->setApplicationVersion ("0.1");

    // Tell the updater where we should download the changelog, note that
    // the changelog can be any file you want,
    // such as an HTML page or (as in this example), a text file
    updater->setChangelogUrl ("https://raw.githubusercontent.com/alex-97/"
                              "QSimpleUpdater/Files-for-example-project/changelog.txt");

    // Tell the updater where we can find the file that tells us the latest version
    // of the application
    updater->setReferenceUrl ("https://raw.githubusercontent.com/alex-97/"
                              "QSimpleUpdater/Files-for-example-project/current_version.txt");

    // Tell the updater where to download the update, its recommended to use direct links
    updater->setDownloadUrl ("https://codeload.github.com/alex-97/QSimpleUpdater/zip/master");

    // Show the progress dialog and show messages when checking is finished
    updater->setSilent (false);
    updater->setShowNewestVersionMessage (true);

    // Finally, check for updates...
    updater->checkForUpdates();
}

void Example::onCheckingFinished()
{
    // Enable the updatesButton and change its text to let the user know
    // that he/she can check for updates again
    ui->updatesButton->setEnabled (true);
    ui->updatesButton->setText ("Check for updates");
}