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#include <QObject>
#include <QTest>
#include <QSignalSpy>

#include <smtpclient.h>
#include <smtpconfiguration.h>

class tst_SmtpClient : public QObject
{
    Q_OBJECT

public:
    tst_SmtpClient() {}
    virtual ~tst_SmtpClient() {}

private slots:
    void initTestCase();
    void cleanupTestCase();

    void test_connection();
    void test_auth();

private:
    SmtpClient *mClient = nullptr;
};

QTEST_MAIN(tst_SmtpClient)

#include "tst_smtp.moc"

void tst_SmtpClient::initTestCase()
{
    QMailAccount account;
    account.setName("Test account for SMTP");
    account.setMessageType(QMailMessage::Email);
    account.setFromAddress(QMailAddress("Account SMTP", "account.smtp@example.org"));
    account.setCustomField("test_account", "true");

    QMailAccountConfiguration config;
    config.addServiceConfiguration("smtp");
    SmtpConfigurationEditor smtp(&config);
    // Provide real server / credentials here
    smtp.setSmtpServer("smtp.free.fr");
    smtp.setSmtpUsername("test account");
    smtp.setSmtpPassword("test password");

    QVERIFY(QMailStore::instance()->addAccount(&account, &config));

    mClient = new SmtpClient(account.id(), this);
}

void tst_SmtpClient::cleanupTestCase()
{
    QMailStore::instance()->removeAccounts(QMailAccountKey::customField("test_account"));
    delete mClient;
    mClient = nullptr;
}

void tst_SmtpClient::test_connection()
{
    QSignalSpy completed(mClient, &SmtpClient::sendCompleted);
    QSignalSpy updateStatus(mClient, &SmtpClient::updateStatus);

    mClient->newConnection();
    QVERIFY(completed.wait());

    QCOMPARE(updateStatus.count(), 3);
    QCOMPARE(updateStatus.takeFirst().first(), QString::fromLatin1("DNS lookup"));
    QCOMPARE(updateStatus.takeFirst().first(), QString::fromLatin1("Connected"));
    QCOMPARE(updateStatus.takeFirst().first(), QString::fromLatin1("Connected"));
}

void tst_SmtpClient::test_auth()
{
    QSignalSpy completed(mClient, &SmtpClient::sendCompleted);
    QSignalSpy updateStatus(mClient, &SmtpClient::updateStatus);

    QMailAccountConfiguration config(mClient->account());
    SmtpConfigurationEditor smtp(&config);
    smtp.setSmtpAuthFromCapabilities(true); // Auto, will choose CRAM-MD5
    smtp.setSmtpEncryption(QMailTransport::Encrypt_SSL);
    smtp.setSmtpPort(465);
    QVERIFY(QMailStore::instance()->updateAccountConfiguration(&config));

    mClient->newConnection();
    QVERIFY(!completed.wait(250)); // Fails with wrong credentials

    QCOMPARE(updateStatus.count(), 3);
    QCOMPARE(updateStatus.takeFirst().first(), QString::fromLatin1("DNS lookup"));
    QCOMPARE(updateStatus.takeFirst().first(), QString::fromLatin1("Connected"));
    QCOMPARE(updateStatus.takeFirst().first(), QString::fromLatin1("Connected"));

    smtp.setSmtpAuthentication(QMail::PlainMechanism);
    QVERIFY(QMailStore::instance()->updateAccountConfiguration(&config));

    mClient->newConnection();
    QVERIFY(!completed.wait(250)); // Fails with wrong credentials

    QCOMPARE(updateStatus.count(), 3);
    QCOMPARE(updateStatus.takeFirst().first(), QString::fromLatin1("DNS lookup"));
    QCOMPARE(updateStatus.takeFirst().first(), QString::fromLatin1("Connected"));
    QCOMPARE(updateStatus.takeFirst().first(), QString::fromLatin1("Connected"));
}