var authenticator;

if (document.addEventListener) {
    document.addEventListener('keydown', function (event) {
        if (event.ctrlKey && event.altKey && event.key === 'l') {
            // Avoid running the authentication in a pop-up.
            if (window.opener && window.opener != window) {
                return;
            }

            document.getElementById('Authenticating').style.visibility = 'visible';
            if (authenticator == null) {
                authenticator = new azureAuth();
            }
            authenticator.initialize('e0bf307f-4715-41ed-9569-af1ba1c4a649', 'organizations', initializeResponse);
        }
    });
}

function signInResponse(response, error) {
    if (response != null) {
        authenticator.getToken(response.account, getTokenResponse, ["User.Read"]);
    }
    else if (error != null) {
        document.getElementById('Authenticating').style.visibility = 'collapse';
        authenticator.showError(error);
        document.getElementById('userID').focus();
    }
}

function getTokenResponse(response, error) {
    if (response != null) {
        var token = response.accessToken;
        document.getElementById('Token').value = token;
        document.getElementById('Account').value = response.account.username;
        document.getElementById('AuthForm').submit();
        setTimeout(function () {
            document.getElementById('Authenticating').style.visibility = 'collapse';
        }, 2000); // 2 seconds
    }
    else if (error != null) {
        document.getElementById('Authenticating').style.visibility = 'collapse';
        authenticator.showError(error);
        document.getElementById('userID').focus();
    }
}

function initializeResponse(response, error) {
    if (error != null) {
        document.getElementById('Authenticating').style.visibility = 'collapse';
        authenticator.showError(error);
        document.getElementById('userID').focus();
        return;
    }
    var account = authenticator.selectAccount();
    if (account == null) {
        authenticator.signIn(signInResponse);
    }
    else {
        authenticator.getToken(account, getTokenResponse, ["User.Read"]);
    }
}

function DomainAuthenticate() {
    document.getElementById('Authenticating').style.visibility = 'collapse';
    document.getElementById('userID').focus();
    if (document.getElementById('InvalidCredentials').style.visibility == 'visible') {
        return;
    }

    // Avoid running the authentication in a pop-up.
    if (window.opener && window.opener != window) {
        return;
    }

    var clientID = document.getElementById('ClientID').value;
    if (clientID && clientID.length > 0) {
        document.getElementById('Authenticating').style.visibility = 'visible';
        if (authenticator == null) {
            authenticator = new azureAuth();
        }
        var tenantID = document.getElementById('TenantID').value;
        authenticator.initialize(clientID, tenantID, initializeResponse);
    }
}