define('jira/viewissue/comment/footer-comment', ['jira/viewissue/comment/comment-form', 'jquery'], function(commentForm, $) {
    /**
     * This is used to control the logic of showing confirmation dialog.
     * If the comment form is being submitted, there should be no confirmation dialog appearing at all.
     * Its value will be changed when successfully submitting the form and start opening a new form.
     * @type {boolean}
     */
    var commentFormIsBeingSubmitted = false;
    var isInPreviewMode = false;

    var footerComment = {
        /**
         * Gets comment module
         * @return {jQuery}
         */
        getModule: function () {
            return $("#addcomment");
        },
        /**
         * Is the comment area visible
         * @return {*}
         */
        isActive: function () {
            return this.getModule().hasClass("active");
        },
        /**
         * Hides comment area
         *
         * @param cancel - clear textarea
         */
        hide: function (cancel) {
            if (this.isActive()) {
                var dirtyMessage = commentForm.handleBrowseAway();
                if (isInPreviewMode || commentFormIsBeingSubmitted || !dirtyMessage || confirm(dirtyMessage)) {
                    this.getModule().removeClass("active");
                    commentForm.hide(cancel);
                }
            }
        },
        ajaxSubmit: function () {
            commentFormIsBeingSubmitted = true;
            commentForm.ajaxSubmit().then(function () {
                footerComment.hide(true);
            });
        },
        /**
         * Shows comment area
         */
        show: function () {
            if (!this.isActive()) {
                commentFormIsBeingSubmitted = false;
                this.getModule().addClass("active");
                this.appendForm();
                commentForm.show();
            } else {
                commentForm.focusField();
            }
        },
        /**
         * Appends form to correct location
         */
        appendForm: function () {
            this.getModule().find(".mod-content").append(commentForm.getForm());
        }
    };

    footerComment.setPreviewMode = function(isEnabled) {
        isInPreviewMode = Boolean(isEnabled);
    };

    return footerComment;
});