/* global $, APP, jQuery, toastr */
var messageHandler = (function(my) {

    /**
     * Shows a message to the user.
     *
     * @param titleString the title of the message
     * @param messageString the text of the message
     */
    my.openMessageDialog = function(titleKey, messageKey) {
        var title = null;
        if(titleKey)
        {
            title = APP.translation.generateTranslatonHTML(titleKey);
        }
        var message = APP.translation.generateTranslatonHTML(messageKey);
        $.prompt(message,
            {
                title: title,
                persistent: false
            }
        );
    };

    /**
     * Shows a message to the user with two buttons: first is given as a parameter and the second is Cancel.
     *
     * @param titleString the title of the message
     * @param msgString the text of the message
     * @param persistent boolean value which determines whether the message is persistent or not
     * @param leftButton the fist button's text
     * @param submitFunction function to be called on submit
     * @param loadedFunction function to be called after the prompt is fully loaded
     * @param closeFunction function to be called after the prompt is closed
     */
    my.openTwoButtonDialog = function(titleKey, titleString, msgKey, msgString,
        persistent, leftButtonKey, submitFunction, loadedFunction,
        closeFunction)
    {
        var buttons = [];

        var leftButton = APP.translation.generateTranslatonHTML(leftButtonKey);
        buttons.push({ title: leftButton, value: true});

        var cancelButton
            = APP.translation.generateTranslatonHTML("dialog.Cancel");
        buttons.push({title: cancelButton, value: false});

        var message = msgString, title = titleString;
        if (titleKey)
        {
            title = APP.translation.generateTranslatonHTML(titleKey);
        }
        if (msgKey) {
            message = APP.translation.generateTranslatonHTML(msgKey);
        }
        $.prompt(message, {
            title: title,
            persistent: false,
            buttons: buttons,
            defaultButton: 1,
            loaded: loadedFunction,
            submit: submitFunction,
            close: closeFunction
        });
    };

    /**
     * Shows a message to the user with two buttons: first is given as a parameter and the second is Cancel.
     *
     * @param titleString the title of the message
     * @param msgString the text of the message
     * @param persistent boolean value which determines whether the message is persistent or not
     * @param buttons object with the buttons. The keys must be the name of the button and value is the value
     * that will be passed to submitFunction
     * @param submitFunction function to be called on submit
     * @param loadedFunction function to be called after the prompt is fully loaded
     */
    my.openDialog = function (titleString, msgString, persistent, buttons,
                              submitFunction, loadedFunction) {
        var args = {
            title: titleString,
            persistent: persistent,
            buttons: buttons,
            defaultButton: 1,
            loaded: loadedFunction,
            submit: submitFunction
        };
        if (persistent) {
            args.closeText = '';
        }
        return $.prompt(msgString, args);
    };

    /**
     * Closes currently opened dialog.
     */
    my.closeDialog = function () {
        $.prompt.close();
    };

    /**
     * Shows a dialog with different states to the user.
     *
     * @param statesObject object containing all the states of the dialog
     * @param loadedFunction function to be called after the prompt is fully loaded
     * @param stateChangedFunction function to be called when the state of the dialog is changed
     */
    my.openDialogWithStates = function(statesObject, loadedFunction, stateChangedFunction) {


        var myPrompt = $.prompt(statesObject);

        myPrompt.on('impromptu:loaded', loadedFunction);
        myPrompt.on('impromptu:statechanged', stateChangedFunction);
    };

    /**
     * Opens new popup window for given <tt>url</tt> centered over current
     * window.
     *
     * @param url the URL to be displayed in the popup window
     * @param w the width of the popup window
     * @param h the height of the popup window
     * @param onPopupClosed optional callback function called when popup window
     *        has been closed.
     *
     * @returns popup window object if opened successfully or undefined
     *          in case we failed to open it(popup blocked)
     */
    my.openCenteredPopup = function (url, w, h, onPopupClosed) {
        var l = window.screenX + (window.innerWidth / 2) - (w / 2);
        var t = window.screenY + (window.innerHeight / 2) - (h / 2);
        var popup = window.open(
            url, '_blank',
            'top=' + t + ', left=' + l + ', width=' + w + ', height=' + h + '');
        if (popup && onPopupClosed) {
            var pollTimer = window.setInterval(function () {
                if (popup.closed !== false) {
                    window.clearInterval(pollTimer);
                    onPopupClosed();
                }
            }, 200);
        }
        return popup;
    };

    /**
     * Shows a dialog prompting the user to send an error report.
     *
     * @param titleString the title of the message
     * @param msgString the text of the message
     * @param error the error that is being reported
     */
    my.openReportDialog = function(titleKey, msgKey, error) {
        my.openMessageDialog(titleKey, msgKey);
        console.log(error);
        //FIXME send the error to the server
    };

    /**
     *  Shows an error dialog to the user.
     * @param title the title of the message
     * @param message the text of the messafe
     */
    my.showError = function(titleKey, msgKey) {

        if(!titleKey) {
            titleKey = "dialog.oops";
        }
        if(!msgKey)
        {
            msgKey = "dialog.defaultError";
        }
        messageHandler.openMessageDialog(titleKey, msgKey);
    };

    my.notify = function(displayName, displayNameKey,
                         cls, messageKey, messageArguments) {
        var displayNameSpan = '<span class="nickname" ';
        if(displayName)
        {
            displayNameSpan += ">" + displayName;
        }
        else
        {
            displayNameSpan += "data-i18n='" + displayNameKey +
                "'>" + APP.translation.translateString(displayNameKey);
        }
        displayNameSpan += "</span>";
        toastr.info(
            displayNameSpan + '<br>' +
            '<span class=' + cls + ' data-i18n="' + messageKey + '"' +
                (messageArguments?
                    " data-i18n-options='" + JSON.stringify(messageArguments) + "'"
                    : "") + ">" +
            APP.translation.translateString(messageKey,
                messageArguments) +
            '</span>');
    };

    return my;
}(messageHandler || {}));

module.exports = messageHandler;