// create-online-sync-account.pro
TEMPLATE = app
TARGET = create-online-sync-account
CONFIG += link_pkgconfig
PKGCONFIG += accounts-qt5 libsignon-qt5

QT += network
SOURCES = main.cpp CreateOnlineSyncAccount.cpp
HEADERS = CreateOnlineSyncAccount.h

// main.cpp
#include <QCoreApplication>
#include <QObject>
#include <QtDebug>
#include "CreateOnlineSyncAccount.h"

int main(int argc, char *argv[])
{
    QCoreApplication app(argc, argv);
    CreateOnlineSyncAccount c;
    QString remotePath, mode, username, password;

    if (argc != 3 && argc != 5) {
        qWarning() << "usage: create-online-sync-account <remotePath> <legacy> <username> <password>";
        return 1;
    }

    remotePath = QString::fromLatin1(argv[1]);
    mode = QString::fromLatin1(argv[2]);
    if (argc == 5) username = QString::fromLatin1(argv[3]);
    if (argc == 5) password = QString::fromLatin1(argv[4]);

    if (mode != QStringLiteral("legacy")) {
        // actually we don't support oauth2 yet
        // to support that, we would also need as parameters:
        // auth path / token path / redirect uri / scopes etc.
        qWarning() << "oauth2 not currently supported";
        return 1;
    }

    QObject::connect(&c, SIGNAL(done()), &app, SLOT(quit()));
    c.createOnlineSyncAccount(remotePath, mode, username, password);
    return app.exec();
}


// createonlinesyncaccount.h
#ifndef CREATEONLINESYNCACCOUNT_H
#define CREATEONLINESYNCACCOUNT_H

#include <QObject>

#include <Accounts/Account>
#include <Accounts/Manager>
#include <Accounts/AccountService>
#include <SignOn/Error>
#include <SignOn/Identity>
#include <SignOn/AuthSession>
#include <SignOn/SessionData>

class CreateOnlineSyncAccount : public QObject
{
    Q_OBJECT

public:
    CreateOnlineSyncAccount(QObject *parent = 0);
    ~CreateOnlineSyncAccount();

    void createOnlineSyncAccount(const QString &remotePath,
                                 const QString &mode,
                                 const QString &username,
                                 const QString &password);

public Q_SLOTS:
    void credentialsStored(quint32 credentialsId);
    void credentialsFailed();

Q_SIGNALS:
    void done();

private:
    Accounts::Manager *m_accountManager;
    Accounts::Account *m_account;
    SignOn::Identity *m_identity;
};

#endif

// createonlinesyncaccount.cpp
#include "CreateOnlineSyncAccount.h"
#include <QtDebug>
#include <QUrl>
#include <Accounts/Service>
#include <SignOn/Identity>
#include <SignOn/IdentityInfo>


CreateOnlineSyncAccount::CreateOnlineSyncAccount(QObject *parent)
    : QObject(parent)
    , m_accountManager(new Accounts::Manager(this))
    , m_account(0)
    , m_identity(0)
{
}

CreateOnlineSyncAccount::~CreateOnlineSyncAccount()
{
    delete m_account;
    delete m_identity;
}

void CreateOnlineSyncAccount::createOnlineSyncAccount(const QString &remotePath,
                                                      const QString &mode,
                                                      const QString &username,
                                                      const QString &password)
{
    Q_UNUSED(mode) // until we take tokenpaths/redirecturis etc as parameters also...

    m_account = m_accountManager->createAccount("caldav"); // change this as required!
    if (!m_account) {
        qWarning() << "error: couldn't create onlinesync account";
        emit done();
    }

    Accounts::Service srv = m_accountManager->service("caldav-yahoo"); // change this as required!
    if (!srv.isValid()) {
        qWarning() << "error: couldn't retrieve caldav service";
        emit done();
    }

    m_account->setDisplayName("caldav account");
    m_account->selectService(srv);
    m_account->setValue("Remote database", remotePath);
    m_account->setValue("auth/method", "password");
    m_account->setValue("auth/mechanism", "password");
    m_account->setEnabled(true);
    m_account->selectService(Accounts::Service());
    m_account->setEnabled(false); // disable globally until credentials are set.

    m_account->syncAndBlock();

    QMap<QString, QStringList> methodMechs;
    methodMechs.insert("password", QStringList()  << "password");
    SignOn::IdentityInfo *info = new SignOn::IdentityInfo(m_account->displayName(), username, methodMechs);
    info->setSecret(password, true);
    QUrl url(remotePath);
    info->setRealms(QStringList() << url.host());
    info->setType(SignOn::IdentityInfo::Application);

    m_identity = SignOn::Identity::newIdentity(*info);
    connect(m_identity, SIGNAL(error(const SignOn::Error &)),
            this, SLOT(credentialsFailed()));
    connect(m_identity, SIGNAL(credentialsStored(const quint32)),
            this, SLOT(credentialsStored()));

    m_identity->storeCredentials();
}

void CreateOnlineSyncAccount::credentialsFailed()
{
    qWarning() << "error: failed to store credentials";
    emit done();
}

void CreateOnlineSyncAccount::credentialsStored(quint32 credentialsId)
{
    Accounts::Service srv = m_accountManager->service("caldav-yahoo"); // change this as required!
    m_account->selectService(srv);
    m_account->setCredentialsId(credentialsId);
    m_account->selectService(Accounts::Service());

    m_account->setCredentialsId(credentialsId); // global service.
    m_account->setEnabled(true);
    m_account->syncAndBlock();

    qWarning() << "success!";
    emit done();
}