/*
* jQuery Pines Notify (pnotify) Plugin 1.0
*
* Copyright (c) 2009 Hunter Perrin
*
* Licensed (along with all of Pines) under the GNU Affero GPL:
*	  http://www.gnu.org/licenses/agpl.html
*/

(function($) {
    var history_handle_top, timer;
    var body;
    var jwindow;
    $.extend({
        pnotify_remove_all: function() {
            var body_data = body.data("pnotify");
            /* POA: Added null-check */
            if (body_data && body_data.length) {
                $.each(body_data, function() {
                    if (this.pnotify_remove)
                        this.pnotify_remove();
                });
            }
        },
        pnotify_position_all: function() {
            if (timer)
                clearTimeout(timer);
            timer = null;
            var body_data = body.data("pnotify");
            if (!body_data || !body_data.length)
                return;
            $.each(body_data, function() {
                var s = this.opts.pnotify_stack;
                if (!s) return;
                if (!s.nextpos1)
                    s.nextpos1 = s.firstpos1;
                if (!s.nextpos2)
                    s.nextpos2 = s.firstpos2;
                if (!s.addpos2)
                    s.addpos2 = 0;
                if (this.css("display") != "none") {
                    var curpos1, curpos2;
                    var animate = {};
                    // Calculate the current pos1 value.
                    var csspos1;
                    switch (s.dir1) {
                        case "down":
                            csspos1 = "top";
                            break;
                        case "up":
                            csspos1 = "bottom";
                            break;
                        case "left":
                            csspos1 = "right";
                            break;
                        case "right":
                            csspos1 = "left";
                            break;
                    }
                    curpos1 = parseInt(this.css(csspos1));
                    if (isNaN(curpos1))
                        curpos1 = 0;
                    // Remember the first pos1, so the first visible notice goes there.
                    if (typeof s.firstpos1 == "undefined") {
                        s.firstpos1 = curpos1;
                        s.nextpos1 = s.firstpos1;
                    }
                    // Calculate the current pos2 value.
                    var csspos2;
                    switch (s.dir2) {
                        case "down":
                            csspos2 = "top";
                            break;
                        case "up":
                            csspos2 = "bottom";
                            break;
                        case "left":
                            csspos2 = "right";
                            break;
                        case "right":
                            csspos2 = "left";
                            break;
                    }
                    curpos2 = parseInt(this.css(csspos2));
                    if (isNaN(curpos2))
                        curpos2 = 0;
                    // Remember the first pos2, so the first visible notice goes there.
                    if (typeof s.firstpos2 == "undefined") {
                        s.firstpos2 = curpos2;
                        s.nextpos2 = s.firstpos2;
                    }
                    // Check that it's not beyond the viewport edge.
                    if ((s.dir1 == "down" && s.nextpos1 + this.height() > jwindow.height()) ||
						(s.dir1 == "up" && s.nextpos1 + this.height() > jwindow.height()) ||
						(s.dir1 == "left" && s.nextpos1 + this.width() > jwindow.width()) ||
						(s.dir1 == "right" && s.nextpos1 + this.width() > jwindow.width())) {
                        // If it is, it needs to go back to the first pos1, and over on pos2.
                        s.nextpos1 = s.firstpos1;
                        s.nextpos2 += s.addpos2 + 10;
                        s.addpos2 = 0;
                    }
                    // Animate if we're moving on dir2.
                    if (s.animation && s.nextpos2 < curpos2) {
                        switch (s.dir2) {
                            case "down":
                                animate.top = s.nextpos2 + "px";
                                break;
                            case "up":
                                animate.bottom = s.nextpos2 + "px";
                                break;
                            case "left":
                                animate.right = s.nextpos2 + "px";
                                break;
                            case "right":
                                animate.left = s.nextpos2 + "px";
                                break;
                        }
                    } else
                        this.css(csspos2, s.nextpos2 + "px");
                    // Keep track of the widest/tallest notice in the column/row, so we can push the next column/row.
                    switch (s.dir2) {
                        case "down":
                        case "up":
                            if (this.outerHeight(true) > s.addpos2)
                                s.addpos2 = this.height();
                            break;
                        case "left":
                        case "right":
                            if (this.outerWidth(true) > s.addpos2)
                                s.addpos2 = this.width();
                            break;
                    }
                    // Move the notice on dir1.
                    if (s.nextpos1) {
                        // Animate if we're moving toward the first pos.
                        if (s.animation && (curpos1 > s.nextpos1 || animate.top || animate.bottom || animate.right || animate.left)) {
                            switch (s.dir1) {
                                case "down":
                                    animate.top = s.nextpos1 + "px";
                                    break;
                                case "up":
                                    animate.bottom = s.nextpos1 + "px";
                                    break;
                                case "left":
                                    animate.right = s.nextpos1 + "px";
                                    break;
                                case "right":
                                    animate.left = s.nextpos1 + "px";
                                    break;
                            }
                        } else
                            this.css(csspos1, s.nextpos1 + "px");
                    }
                    if (animate.top || animate.bottom || animate.right || animate.left)
                        this.animate(animate, { duration: 500, queue: false });
                    // Calculate the next dir1 position.
                    switch (s.dir1) {
                        case "down":
                        case "up":
                            s.nextpos1 += this.height() + 10;
                            break;
                        case "left":
                        case "right":
                            s.nextpos1 += this.width() + 10;
                            break;
                    }
                }
            });
            // Reset the next position data.
            $.each(body_data, function() {
                var s = this.opts.pnotify_stack;
                if (!s) return;
                s.nextpos1 = s.firstpos1;
                s.nextpos2 = s.firstpos2;
                s.addpos2 = 0;
                s.animation = true;
            });
        },
        pnotify: function(options) {
            if (!body)
                body = $("body");
            if (!jwindow)
                jwindow = $(window);

            var animating;

            // Build main options.
            var opts;
            if (typeof options == "string") {
                opts = $.extend({}, $.pnotify.defaults);
                opts.pnotify_text = options;
            } else {
                opts = $.extend({}, $.pnotify.defaults, options);
            }

            if (opts.pnotify_before_init) {
                if (opts.pnotify_before_init(opts) === false)
                    return null;
            }

            // Create our widget.
            // Stop animation, reset the removal timer, and show the close
            // button when the user mouses over.
            var pnotify = $("<div />", {
                "class": "ui-widget ui-helper-clearfix ui-pnotify " + opts.pnotify_addclass,
                "css": { "display": "none" },
                "mouseenter": function() {
                    // If it's animating out, animate back in really quick.
                    if (animating == "out") {
                        pnotify.stop(true);
                        pnotify.css("height", "auto").animate({ "width": opts.pnotify_width, "opacity": opts.pnotify_opacity }, "fast");
                    }
                    if (opts.pnotify_hide) pnotify.pnotify_cancel_remove();
                    if (opts.pnotify_closer) pnotify.closer.show();
                },
                "mouseleave": function() {
                    if (opts.pnotify_hide) pnotify.pnotify_queue_remove();
                    pnotify.closer.hide();
                    $.pnotify_position_all();
                }
            });
            pnotify.opts = opts;
            // Create a drop shadow.
            if (opts.pnotify_shadow)
                pnotify.shadow_container = $("<div />", { "class": "ui-widget-shadow ui-pnotify-shadow" }).prependTo(pnotify);
            // Create a container for the notice contents.
            pnotify.container = $("<div />", { "class": "ui-corner-all ui-pnotify-container " + (opts.pnotify_type == "error" ? "ui-state-error" : "ui-state-highlight") })
			.appendTo(pnotify);

            pnotify.pnotify_version = "1.0.0";

            // This function is for updating the notice.
            pnotify.pnotify = function(options) {
                // Update the notice.
                var old_opts = opts;
                if (typeof options == "string")
                    opts.pnotify_text = options;
                else
                    opts = $.extend({}, opts, options);
                pnotify.opts = opts;
                // Update the shadow.
                if (opts.pnotify_shadow != old_opts.pnotify_shadow) {
                    if (opts.pnotify_shadow)
                        pnotify.shadow_container = $("<div />", { "class": "ui-widget-shadow ui-pnotify-shadow" }).prependTo(pnotify);
                    else
                        pnotify.children(".ui-pnotify-shadow").remove();
                }
                // Update the additional classes.
                if (opts.pnotify_addclass === false)
                    pnotify.removeClass(old_opts.pnotify_addclass);
                else if (opts.pnotify_addclass !== old_opts.pnotify_addclass)
                    pnotify.removeClass(old_opts.pnotify_addclass).addClass(opts.pnotify_addclass);
                // Update the title.
                if (opts.pnotify_title === false)
                    pnotify.title_container.hide("fast");
                else if (opts.pnotify_title !== old_opts.pnotify_title)
                    pnotify.title_container.html(opts.pnotify_title).show("fast");
                // Update the text.
                if (opts.pnotify_text === false) {
                    pnotify.text_container.hide("fast");
                } else if (opts.pnotify_text !== old_opts.pnotify_text) {
                    if (opts.pnotify_insert_brs)
                        opts.pnotify_text = opts.pnotify_text.replace("\n", "<br />");
                    pnotify.text_container.html(opts.pnotify_text).show("fast");
                }
                pnotify.pnotify_history = opts.pnotify_history;
                // Change the notice type.
                if (opts.pnotify_type != old_opts.pnotify_type)
                    pnotify.container.toggleClass("ui-state-error ui-state-highlight");
                if ((opts.pnotify_notice_icon != old_opts.pnotify_notice_icon && opts.pnotify_type == "notice") ||
					(opts.pnotify_error_icon != old_opts.pnotify_error_icon && opts.pnotify_type == "error") ||
					(opts.pnotify_type != old_opts.pnotify_type)) {
                    // Remove any old icon.
                    pnotify.container.find("div.ui-pnotify-icon").remove();
                    if ((opts.pnotify_error_icon && opts.pnotify_type == "error") || (opts.pnotify_notice_icon)) {
                        // Build the new icon.
                        $("<div />", { "class": "ui-pnotify-icon" })
						.append($("<span />", { "class": opts.pnotify_type == "error" ? opts.pnotify_error_icon : opts.pnotify_notice_icon }))
						.prependTo(pnotify.container);
                    }
                }
                // Update the width.
                if (opts.pnotify_width !== old_opts.pnotify_width)
                    pnotify.animate({ width: opts.pnotify_width });
                // Update the minimum height.
                if (opts.pnotify_min_height !== old_opts.pnotify_min_height)
                    pnotify.container.animate({ minHeight: opts.pnotify_min_height });
                // Update the opacity.
                if (opts.pnotify_opacity !== old_opts.pnotify_opacity)
                    pnotify.fadeTo(opts.pnotify_animate_speed, opts.pnotify_opacity);
                if (!opts.pnotify_hide)
                    pnotify.pnotify_cancel_remove();
                else if (!old_opts.pnotify_hide)
                    pnotify.pnotify_queue_remove();
                pnotify.pnotify_queue_position();
                return pnotify;
            };

            // Queue the position function so it doesn't run repeatedly and use
            // up resources.
            pnotify.pnotify_queue_position = function() {
                if (timer)
                    clearTimeout(timer);
                timer = setTimeout($.pnotify_position_all, 10);
            };

            // Display the notice.
            pnotify.pnotify_display = function() {
                // If the notice is not in the DOM, append it.
                if (!pnotify.parent().length)
                    pnotify.appendTo(body);
                // Run callback.
                if (opts.pnotify_before_open) {
                    if (opts.pnotify_before_open(pnotify) === false)
                        return;
                }
                pnotify.pnotify_queue_position();
                // First show it, then set its opacity, then hide it.
                if (opts.pnotify_animation == "fade" || opts.pnotify_animation.effect_in == "fade") {
                    // If it's fading in, it should start at 0.
                    pnotify.show().fadeTo(0, 0).hide();
                } else {
                    // Or else it should be set to the opacity.
                    if (opts.pnotify_opacity != 1)
                        pnotify.show().fadeTo(0, opts.pnotify_opacity).hide();
                }
                pnotify.animate_in(function() {
                    if (opts.pnotify_after_open)
                        opts.pnotify_after_open(pnotify);

                    pnotify.pnotify_queue_position();

                    // Now set it to hide.
                    if (opts.pnotify_hide)
                        pnotify.pnotify_queue_remove();
                });
            };

            // Remove the notice.
            pnotify.pnotify_remove = function() {
                if (pnotify.timer) {
                    window.clearTimeout(pnotify.timer);
                    pnotify.timer = null;
                }
                // Run callback.
                if (opts.pnotify_before_close) {
                    if (opts.pnotify_before_close(pnotify) === false)
                        return;
                }
                pnotify.animate_out(function() {
                    if (opts.pnotify_after_close) {
                        if (opts.pnotify_after_close(pnotify) === false)
                            return;
                    }
                    pnotify.pnotify_queue_position();
                    // If we're supposed to remove the notice from the DOM, do it.
                    if (opts.pnotify_remove)
                        pnotify.detach();
                });
            };

            // Animate the notice in.
            pnotify.animate_in = function(callback) {
                // Declare that the notice is animating in. (Or has completed animating in.)
                animating = "in";
                var animation;
                if (typeof opts.pnotify_animation.effect_in != "undefined")
                    animation = opts.pnotify_animation.effect_in;
                else
                    animation = opts.pnotify_animation;
                if (animation == "none") {
                    pnotify.show();
                    callback();
                } else if (animation == "show")
                    pnotify.show(opts.pnotify_animate_speed, callback);
                else if (animation == "fade")
                    pnotify.show().fadeTo(opts.pnotify_animate_speed, opts.pnotify_opacity, callback);
                else if (animation == "slide")
                    pnotify.slideDown(opts.pnotify_animate_speed, callback);
                else if (typeof animation == "function")
                    animation("in", callback, pnotify);
                else if (pnotify.effect)
                    pnotify.effect(animation, {}, opts.pnotify_animate_speed, callback);
            };

            // Animate the notice out.
            pnotify.animate_out = function(callback) {
                // Declare that the notice is animating out. (Or has completed animating out.)
                animating = "out";
                var animation;
                if (typeof opts.pnotify_animation.effect_out != "undefined")
                    animation = opts.pnotify_animation.effect_out;
                else
                    animation = opts.pnotify_animation;
                if (animation == "none") {
                    pnotify.hide();
                    callback();
                } else if (animation == "show")
                    pnotify.hide(opts.pnotify_animate_speed, callback);
                else if (animation == "fade")
                    pnotify.fadeOut(opts.pnotify_animate_speed, callback);
                else if (animation == "slide")
                    pnotify.slideUp(opts.pnotify_animate_speed, callback);
                else if (typeof animation == "function")
                    animation("out", callback, pnotify);
                else if (pnotify.effect)
                    pnotify.effect(animation, {}, opts.pnotify_animate_speed, callback);
            };

            // Cancel any pending removal timer.
            pnotify.pnotify_cancel_remove = function() {
                if (pnotify.timer)
                    window.clearTimeout(pnotify.timer);
            };

            // Queue a removal timer.
            pnotify.pnotify_queue_remove = function() {
                // Cancel any current removal timer.
                pnotify.pnotify_cancel_remove();
                pnotify.timer = window.setTimeout(function() {
                    pnotify.pnotify_remove();
                }, (isNaN(opts.pnotify_delay) ? 0 : opts.pnotify_delay));
            };

            // Provide a button to close the notice.
            pnotify.closer = $("<div />", {
                "class": "ui-pnotify-closer",
                "css": { "cursor": "pointer", "display": "none" },
                "click": function() {
                    pnotify.pnotify_remove();
                    pnotify.closer.hide();
                }
            })
			.append($("<span />", { "class": "ui-icon ui-icon-circle-close" }))
			.appendTo(pnotify.container);

            // Add the appropriate icon.
            if ((opts.pnotify_error_icon && opts.pnotify_type == "error") || (opts.pnotify_notice_icon)) {
                $("<div />", { "class": "ui-pnotify-icon" })
				.append($("<span />", { "class": opts.pnotify_type == "error" ? opts.pnotify_error_icon : opts.pnotify_notice_icon }))
				.appendTo(pnotify.container);
            }

            // Add a title.
            pnotify.title_container = $("<div />", {
                "class": "ui-pnotify-title",
                "html": opts.pnotify_title
            })
			.appendTo(pnotify.container);
            if (typeof opts.pnotify_title != "string")
                pnotify.title_container.hide();

            // Replace new lines with HTML line breaks.
            if (opts.pnotify_insert_brs && typeof opts.pnotify_text == "string")
                opts.pnotify_text = opts.pnotify_text.replace("\n", "<br />");
            // Add text.
            pnotify.text_container = $("<div />", {
                "class": "ui-pnotify-text",
                "html": opts.pnotify_text
            })
			.appendTo(pnotify.container);
            if (typeof opts.pnotify_text != "string")
                pnotify.text_container.hide();

            // Set width and min height.
            if (typeof opts.pnotify_width == "string")
                pnotify.css("width", opts.pnotify_width);
            if (typeof opts.pnotify_min_height == "string")
                pnotify.container.css("min-height", opts.pnotify_min_height);

            // The history variable controls whether the notice gets redisplayed
            // by the history pull down.
            pnotify.pnotify_history = opts.pnotify_history;

            // Add the notice to the notice array.
            var body_data = body.data("pnotify");
            if (body_data == null || typeof body_data != "object")
                body_data = [];
            if (opts.pnotify_stack.push == "top")
                body_data = $.merge([pnotify], body_data);
            else
                body_data = $.merge(body_data, [pnotify]);
            body.data("pnotify", body_data);

            // Run callback.
            if (opts.pnotify_after_init)
                opts.pnotify_after_init(pnotify);

            if (opts.pnotify_history) {
                // If there isn't a history pull down, create one.
                var body_history = body.data("pnotify_history");
                if (typeof body_history == "undefined") {
                    body_history = $("<div />", {
                        "class": "ui-pnotify-history-container ui-state-default ui-corner-bottom",
                        "mouseleave": function() {
                            body_history.animate({ top: "-" + history_handle_top + "px" }, { duration: 100, queue: false });
                        }
                    })
					.append($("<div />", { "class": "ui-pnotify-history-header", "text": "Redisplay" }))
					.append($("<button />", {
					    "class": "ui-pnotify-history-all ui-state-default ui-corner-all",
					    "text": "All",
					    "hover": function() {
					        $(this).toggleClass("ui-state-hover");
					    },
					    "click": function() {
					        // Display all notices. (Disregarding non-history notices.)
					        $.each(body_data, function() {
					            if (this.pnotify_history && this.pnotify_display)
					                this.pnotify_display();
					        });
					        return false;
					    }
					}))
					.append($("<button />", {
					    "class": "ui-pnotify-history-last ui-state-default ui-corner-all",
					    "text": "Last",
					    "hover": function() {
					        $(this).toggleClass("ui-state-hover");
					    },
					    "click": function() {
					        // Look up the last history notice, and display it.
					        var i = 1;
					        while (!body_data[body_data.length - i] || !body_data[body_data.length - i].pnotify_history) {
					            if (body_data.length - i === 0)
					                return false;
					            i++;
					        }
					        if (body_data[body_data.length - i].pnotify_display)
					            body_data[body_data.length - i].pnotify_display();
					        return false;
					    }
					}))
					.appendTo(body);

                    // Make a handle so the user can pull down the history pull down.
                    var handle = $("<span />", {
                        "class": "ui-pnotify-history-pulldown ui-icon ui-icon-grip-dotted-horizontal",
                        "mouseenter": function() {
                            body_history.animate({ top: "0" }, { duration: 100, queue: false });
                        }
                    })
					.appendTo(body_history);

                    // Get the top of the handle.
                    history_handle_top = handle.offset().top + 2;
                    // Hide the history pull down up to the top of the handle.
                    body_history.css({ top: "-" + history_handle_top + "px" });
                    // Save the history pull down.
                    body.data("pnotify_history", body_history);
                }
            }

            // Mark the stack so it won't animate the new notice.
            opts.pnotify_stack.animation = false;

            // Display the notice.
            pnotify.pnotify_display();

            return pnotify;
        }
    });

    $.pnotify.defaults = {
        // Additional classes to be added to the notice. (For custom styling.)
        pnotify_addclass: "",
        // Display a pull down menu to redisplay previous notices, and place the notice in the history.
        pnotify_history: false,
        // Width of the notice.
        pnotify_width: "300px",
        // Minimum height of the notice. It will expand to fit content.
        pnotify_min_height: "16px",
        // Type of the notice. "notice" or "error".
        pnotify_type: "notice",
        // The icon class to use if type is notice.
        pnotify_notice_icon: "ui-icon ui-icon-info",
        // The icon class to use if type is error.
        pnotify_error_icon: "ui-icon ui-icon-alert",
        // The animation to use when displaying and hiding the notice. "none", "show", "fade", and "slide" are built in to jQuery. Others require jQuery UI. Use an object with effect_in and effect_out to use different effects.
        pnotify_animation: "fade",
        // Speed at which the notice animates in and out. "slow", "def" or "normal", "fast" or number of milliseconds.
        pnotify_animate_speed: "def",
        // Opacity of the notice.
        pnotify_opacity: 1,
        // Display a drop shadow.
        pnotify_shadow: false,
        // Provide a button for the user to manually close the notice.
        pnotify_closer: true,
        // After a delay, remove the notice.
        pnotify_hide: true,
        // Delay in milliseconds before the notice is removed.
        pnotify_delay: 8000,
        // Remove the notice's elements from the DOM after it is removed.
        pnotify_remove: true,
        // Change new lines to br tags.
        pnotify_insert_brs: true,
        // The stack on which the notices will be placed. Also controls the direction the notices stack.
        pnotify_stack: { "dir1": "down", "dir2": "left", "push": "bottom-right" }
    };
})(jQuery);