/* ================================================
 * Make use of Bootstrap's modal more monkey-friendly.
 * 
 * For Bootstrap 3.
 * 
 * javanoob@hotmail.com
 * 
 * https://github.com/nakupanda/bootstrap3-dialog
 * 
 * Licensed under The MIT License.
 * ================================================ */
(function($) {

    "use strict";

    var BootstrapDialog = function(options) {
        this.defaultOptions = {
            id: BootstrapDialog.newGuid(),
            type: BootstrapDialog.TYPE_PRIMARY,
            size: BootstrapDialog.SIZE_NORMAL,
            cssClass: '',
            title: null,
            message: null,
            buttons: [],
            closable: true,
            spinicon: BootstrapDialog.ICON_SPINNER,
            data: {},
            onshow: null,
            onhide: null,
            autodestroy: true,
            draggable: false
        };
        this.indexedButtons = {};
        this.registeredButtonHotkeys = {};
        this.draggableData = {
            isMouseDown: false,
            mouseOffset: {}
        };
        this.realized = false;
        this.opened = false;
        this.initOptions(options);
        this.holdThisInstance();
    };

    /**
     *  Some constants.
     */
    BootstrapDialog.NAMESPACE = 'bootstrap-dialog';

    BootstrapDialog.TYPE_DEFAULT = 'type-default';
    BootstrapDialog.TYPE_INFO = 'type-info';
    BootstrapDialog.TYPE_PRIMARY = 'type-primary';
    BootstrapDialog.TYPE_SUCCESS = 'type-success';
    BootstrapDialog.TYPE_WARNING = 'type-warning';
    BootstrapDialog.TYPE_DANGER = 'type-danger';

    BootstrapDialog.DEFAULT_TEXTS = {};
    BootstrapDialog.DEFAULT_TEXTS[BootstrapDialog.TYPE_DEFAULT] = 'Information';
    BootstrapDialog.DEFAULT_TEXTS[BootstrapDialog.TYPE_INFO] = 'Information';
    BootstrapDialog.DEFAULT_TEXTS[BootstrapDialog.TYPE_PRIMARY] = 'Information';
    BootstrapDialog.DEFAULT_TEXTS[BootstrapDialog.TYPE_SUCCESS] = 'Success';
    BootstrapDialog.DEFAULT_TEXTS[BootstrapDialog.TYPE_WARNING] = 'Warning';
    BootstrapDialog.DEFAULT_TEXTS[BootstrapDialog.TYPE_DANGER] = 'Danger';

    BootstrapDialog.SIZE_NORMAL = 'size-normal';
    BootstrapDialog.SIZE_LARGE = 'size-large';

    BootstrapDialog.BUTTON_SIZES = {};
    BootstrapDialog.BUTTON_SIZES[BootstrapDialog.SIZE_NORMAL] = '';
    BootstrapDialog.BUTTON_SIZES[BootstrapDialog.SIZE_LARGE] = 'btn-lg';

    BootstrapDialog.ICON_SPINNER = 'glyphicon glyphicon-asterisk';

    /**
     * Open / Close all created dialogs all at once.
     */
    BootstrapDialog.dialogs = {};
    BootstrapDialog.openAll = function() {
        $.each(BootstrapDialog.dialogs, function(id, dialogInstance) {
            dialogInstance.open();
        });
    };
    BootstrapDialog.closeAll = function() {
        $.each(BootstrapDialog.dialogs, function(id, dialogInstance) {
            dialogInstance.close();
        });
    };

    BootstrapDialog.prototype = {
        constructor: BootstrapDialog,
        initOptions: function(options) {
            this.options = $.extend(true, this.defaultOptions, options);

            return this;
        },
        holdThisInstance: function() {
            BootstrapDialog.dialogs[this.getId()] = this;

            return this;
        },
        initModalStuff: function() {
            this.setModal(this.createModal())
            .setModalDialog(this.createModalDialog())
            .setModalContent(this.createModalContent())
            .setModalHeader(this.createModalHeader())
            .setModalBody(this.createModalBody())
            .setModalFooter(this.createModalFooter());

            this.getModal().append(this.getModalDialog());
            this.getModalDialog().append(this.getModalContent());
            this.getModalContent()
            .append(this.getModalHeader())
            .append(this.getModalBody())
            .append(this.getModalFooter());

            return this;
        },
        createModal: function() {
            var $modal = $('<div class="modal fade" tabindex="-1"></div>');
            $modal.prop('id', this.getId());

            return $modal;
        },
        getModal: function() {
            return this.$modal;
        },
        setModal: function($modal) {
            this.$modal = $modal;

            return this;
        },
        createModalDialog: function() {
            return $('<div class="modal-dialog"></div>');
        },
        getModalDialog: function() {
            return this.$modalDialog;
        },
        setModalDialog: function($modalDialog) {
            this.$modalDialog = $modalDialog;

            return this;
        },
        createModalContent: function() {
            return $('<div class="modal-content"></div>');
        },
        getModalContent: function() {
            return this.$modalContent;
        },
        setModalContent: function($modalContent) {
            this.$modalContent = $modalContent;

            return this;
        },
        createModalHeader: function() {
            return $('<div class="modal-header"></div>');
        },
        getModalHeader: function() {
            return this.$modalHeader;
        },
        setModalHeader: function($modalHeader) {
            this.$modalHeader = $modalHeader;

            return this;
        },
        createModalBody: function() {
            return $('<div class="modal-body"></div>');
        },
        getModalBody: function() {
            return this.$modalBody;
        },
        setModalBody: function($modalBody) {
            this.$modalBody = $modalBody;

            return this;
        },
        createModalFooter: function() {
            return $('<div class="modal-footer"></div>');
        },
        getModalFooter: function() {
            return this.$modalFooter;
        },
        setModalFooter: function($modalFooter) {
            this.$modalFooter = $modalFooter;

            return this;
        },
        createDynamicContent: function(rawContent) {
            var content = null;
            if (typeof rawContent === 'function') {
                content = rawContent.call(rawContent, this);
            } else {
                content = rawContent;
            }
            if (typeof content === 'string') {
                content = this.formatStringContent(content);
            }

            return content;
        },
        formatStringContent: function(content) {
            return content.replace(/\r\n/g, '<br />').replace(/[\r\n]/g, '<br />');
        },
        setData: function(key, value) {
            this.options.data[key] = value;

            return this;
        },
        getData: function(key) {
            return this.options.data[key];
        },
        setId: function(id) {
            this.options.id = id;

            return this;
        },
        getId: function() {
            return this.options.id;
        },
        getType: function() {
            return this.options.type;
        },
        setType: function(type) {
            this.options.type = type;

            return this;
        },
        getSize: function() {
            return this.options.size;
        },
        setSize: function(size) {
            this.options.size = size;

            return this;
        },
        getCssClass: function() {
            return this.options.cssClass;
        },
        setCssClass: function(cssClass) {
            this.options.cssClass = cssClass;

            return this;
        },
        getTitle: function() {
            return this.options.title;
        },
        setTitle: function(title) {
            this.options.title = title;
            this.updateTitle();

            return this;
        },
        updateTitle: function() {
            if (this.isRealized()) {
                var title = this.getTitle() !== null ? this.createDynamicContent(this.getTitle()) : this.getDefaultText();
                this.getModalHeader().find('.' + this.getNamespace('title')).html('').append(title);
            }

            return this;
        },
        getMessage: function() {
            return this.options.message;
        },
        setMessage: function(message) {
            this.options.message = message;
            this.updateMessage();

            return this;
        },
        updateMessage: function() {
            if (this.isRealized()) {
                var message = this.createDynamicContent(this.getMessage());
                this.getModalBody().find('.' + this.getNamespace('message')).html('').append(message);
            }

            return this;
        },
        isClosable: function() {
            return this.options.closable;
        },
        setClosable: function(closable) {
            this.options.closable = closable;
            this.updateClosable();

            return this;
        },
        getSpinicon: function() {
            return this.options.spinicon;
        },
        setSpinicon: function(spinicon) {
            this.options.spinicon = spinicon;

            return this;
        },
        addButton: function(button) {
            this.options.buttons.push(button);

            return this;
        },
        addButtons: function(buttons) {
            var that = this;
            $.each(buttons, function(index, button) {
                that.addButton(button);
            });

            return this;
        },
        getButtons: function() {
            return this.options.buttons;
        },
        setButtons: function(buttons) {
            this.options.buttons = buttons;

            return this;
        },
        /**
         * If there is id provided for a button option, it will be in dialog.indexedButtons list.
         * 
         * In that case you can use dialog.getButton(id) to find the button.
         * 
         * @param {type} id
         * @returns {undefined}
         */
        getButton: function(id) {
            if (typeof this.indexedButtons[id] !== 'undefined') {
                return this.indexedButtons[id];
            }

            return null;
        },
        getButtonSize: function() {
            if (typeof BootstrapDialog.BUTTON_SIZES[this.getSize()] !== 'undefined') {
                return BootstrapDialog.BUTTON_SIZES[this.getSize()];
            }

            return '';
        },
        isAutodestroy: function() {
            return this.options.autodestroy;
        },
        setAutodestroy: function(autodestroy) {
            this.options.autodestroy = autodestroy;
        },
        getDefaultText: function() {
            return BootstrapDialog.DEFAULT_TEXTS[this.getType()];
        },
        getNamespace: function(name) {
            return BootstrapDialog.NAMESPACE + '-' + name;
        },
        createHeaderContent: function() {
            var $container = $('<div></div>');
            $container.addClass(this.getNamespace('header'));

            // title
            $container.append(this.createTitleContent());

            // Close button
            $container.append(this.createCloseButton());

            return $container;
        },
        createTitleContent: function() {
            var $title = $('<div></div>');
            $title.addClass(this.getNamespace('title'));

            return $title;
        },
        createCloseButton: function() {
            var $container = $('<div></div>');
            $container.addClass(this.getNamespace('close-button'));
            var $icon = $('<button class="close">×</button>');
            $container.append($icon);
            $container.on('click', {dialog: this}, function(event) {
                event.data.dialog.close();
            });

            return $container;
        },
        createBodyContent: function() {
            var $container = $('<div></div>');
            $container.addClass(this.getNamespace('body'));

            // Message
            $container.append(this.createMessageContent());

            return $container;
        },
        createMessageContent: function() {
            var $message = $('<div></div>');
            $message.addClass(this.getNamespace('message'));

            return $message;
        },
        createFooterContent: function() {
            var $container = $('<div></div>');
            $container.addClass(this.getNamespace('footer'));

            // Buttons
            $container.append(this.createFooterButtons());

            return $container;
        },
        createFooterButtons: function() {
            var that = this;
            var $container = $('<div></div>');
            $container.addClass(this.getNamespace('footer-buttons'));
            this.indexedButtons = {};
            $.each(this.options.buttons, function(index, button) {
                if (!button.id) {
                    button.id = BootstrapDialog.newGuid();
                }
                var $button = that.createButton(button);
                that.indexedButtons[button.id] = $button;
                $container.append($button);
            });

            return $container;
        },
        createButton: function(button) {
            var $button = $('<button class="btn"></button>');
            $button.addClass(this.getButtonSize());
            $button.prop('id', button.id);

            // Icon
            if (typeof button.icon !== undefined && $.trim(button.icon) !== '') {
                $button.append(this.createButtonIcon(button.icon));
            }

            // Label
            if (typeof button.label !== undefined) {
                $button.append(button.label);
            }

            // Css class
            if (typeof button.cssClass !== undefined && $.trim(button.cssClass) !== '') {
                $button.addClass(button.cssClass);
            } else {
                $button.addClass('btn-default');
            }

            // Hotkey
            if (typeof button.hotkey !== undefined) {
                this.registeredButtonHotkeys[button.hotkey] = $button;
            }

            // Button on click
            $button.on('click', {dialog: this, $button: $button, button: button}, function(event) {
                var dialog = event.data.dialog;
                var $button = event.data.$button;
                var button = event.data.button;
                if (typeof button.action === 'function') {
                    button.action.call($button, dialog);
                }

                if (button.autospin) {
                    $button.toggleSpin(true);
                }
            });

            // Dynamically add extra functions to $button
            this.enhanceButton($button);

            return $button;
        },
        /**
         * Dynamically add extra functions to $button
         * 
         * Using '$this' to reference 'this' is just for better readability.
         * 
         * @param {type} $button
         * @returns {_L13.BootstrapDialog.prototype}
         */
        enhanceButton: function($button) {
            $button.dialog = this;

            // Enable / Disable
            $button.toggleEnable = function(enable) {
                var $this = this;
                $this.prop("disabled", !enable).toggleClass('disabled', !enable);

                return $this;
            };
            $button.enable = function() {
                var $this = this;
                $this.toggleEnable(true);

                return $this;
            };
            $button.disable = function() {
                var $this = this;
                $this.toggleEnable(false);

                return $this;
            };

            // Icon spinning, helpful for indicating ajax loading status.
            $button.toggleSpin = function(spin) {
                var $this = this;
                var dialog = $this.dialog;
                var $icon = $this.find('.' + dialog.getNamespace('button-icon'));
                if (spin) {
                    $icon.hide();
                    $button.prepend(dialog.createButtonIcon(dialog.getSpinicon()).addClass('icon-spin'));
                } else {
                    $icon.show();
                    $button.find('.icon-spin').remove();
                }

                return $this;
            };
            $button.spin = function() {
                var $this = this;
                $this.toggleSpin(true);

                return $this;
            };
            $button.stopSpin = function() {
                var $this = this;
                $this.toggleSpin(false);

                return $this;
            };

            return this;
        },
        createButtonIcon: function(icon) {
            var $icon = $('<span></span>');
            $icon.addClass(this.getNamespace('button-icon')).addClass(icon);

            return $icon;
        },
        /**
         * Invoke this only after the dialog is realized.
         * 
         * @param {type} enable
         * @returns {undefined}
         */
        enableButtons: function(enable) {
            $.each(this.indexedButtons, function(id, $button) {
                $button.toggleEnable(enable);
            });

            return this;
        },
        /**
         * Invoke this only after the dialog is realized.
         * 
         * @returns {undefined}
         */
        updateClosable: function() {
            if (this.isRealized()) {
                // Close button
                this.getModalHeader().find('.' + this.getNamespace('close-button')).toggle(this.isClosable());
            }

            return this;
        },
        /**
         * Set handler for modal event 'show'.
         * This is a setter!
         * 
         * @param {type} onopen
         * @returns {_L9.BootstrapDialog.prototype}
         */
        onShow: function(onshow) {
            this.options.onshow = onshow;

            return this;
        },
        /**
         * Set handler for modal event 'hide'.
         * This is a setter!
         * 
         * @param {type} onclose
         * @returns {_L9.BootstrapDialog.prototype}
         */
        onHide: function(onhide) {
            this.options.onhide = onhide;

            return this;
        },
        isRealized: function() {
            return this.realized;
        },
        setRealized: function(realized) {
            this.realized = realized;

            return this;
        },
        isOpened: function() {
            return this.opened;
        },
        setOpened: function(opened) {
            this.opened = opened;

            return this;
        },
        handleModalEvents: function() {
            this.getModal().on('show.bs.modal', {dialog: this}, function(event) {
                var dialog = event.data.dialog;
                typeof dialog.options.onshow === 'function' && dialog.options.onshow(dialog);
                dialog.showPageScrollBar(true);
            });
            this.getModal().on('hide.bs.modal', {dialog: this}, function(event) {
                var dialog = event.data.dialog;
                typeof dialog.options.onhide === 'function' && dialog.options.onhide(dialog);
            });
            this.getModal().on('hidden.bs.modal', {dialog: this}, function(event) {
                var dialog = event.data.dialog;
                dialog.isAutodestroy() && $(this).remove();
                dialog.showPageScrollBar(false);
            });

            // Backdrop, I did't find a way to change bs3 backdrop option after the dialog is popped up, so here's a new wheel.
            this.getModal().on('click', {dialog: this}, function(event) {
                event.target === this && event.data.dialog.isClosable() && event.data.dialog.close();
            });

            // ESC key support
            this.getModal().on('keyup', {dialog: this}, function(event) {
                event.which === 27 && event.data.dialog.isClosable() && event.data.dialog.close();
            });

            // Button hotkey
            this.getModal().on('keyup', {dialog: this}, function(event) {
                var dialog = event.data.dialog;
                if (typeof dialog.registeredButtonHotkeys[event.which] !== 'undefined') {
                    var $button = $(dialog.registeredButtonHotkeys[event.which]);
                    !$button.prop('disabled') && $button.focus().trigger('click');
                }
            });

            return this;
        },
        makeModalDraggable: function() {
            if (this.options.draggable) {
                this.getModalHeader().addClass(this.getNamespace('draggable')).on('mousedown', {dialog: this}, function(event) {
                    var dialog = event.data.dialog;
                    dialog.draggableData.isMouseDown = true;
                    var dialogOffset = dialog.getModalContent().offset();
                    dialog.draggableData.mouseOffset = {
                        top: event.clientY - dialogOffset.top,
                        left: event.clientX - dialogOffset.left
                    };
                });
                this.getModal().on('mouseup mouseleave', {dialog: this}, function(event) {
                    event.data.dialog.draggableData.isMouseDown = false;
                });
                $('body').on('mousemove', {dialog: this}, function(event) {
                    var dialog = event.data.dialog;
                    if (!dialog.draggableData.isMouseDown) {
                        return;
                    }
                    dialog.getModalContent().offset({
                        top: event.clientY - dialog.draggableData.mouseOffset.top,
                        left: event.clientX - dialog.draggableData.mouseOffset.left
                    });
                });
            }

            return this;
        },
        showPageScrollBar: function(show) {
            $(document.body).toggleClass('modal-open', show);
        },
        realize: function() {
            this.initModalStuff();
            this.getModal().addClass(BootstrapDialog.NAMESPACE)
            .addClass(this.getType())
            .addClass(this.getSize())
            .addClass(this.getCssClass());
            this.getModalFooter().append(this.createFooterContent());
            this.getModalHeader().append(this.createHeaderContent());
            this.getModalBody().append(this.createBodyContent());
            this.getModal().modal({
                backdrop: 'static',
                keyboard: false,
                show: false
            });
            this.makeModalDraggable();
            this.handleModalEvents();
            this.setRealized(true);
            this.updateTitle();
            this.updateMessage();
            this.updateClosable();

            return this;
        },
        open: function() {
            !this.isRealized() && this.realize();
            this.getModal().modal('show');
            this.setOpened(true);

            return this;
        },
        close: function() {
            this.getModal().modal('hide');
            if (this.isAutodestroy()) {
                delete BootstrapDialog.dialogs[this.getId()];
            }
            this.setOpened(false);

            return this;
        }
    };

    /**
     * RFC4122 version 4 compliant unique id creator.
     *
     * Added by https://github.com/tufanbarisyildirim/
     *
     *  @returns {String}
     */
    BootstrapDialog.newGuid = function() {
        return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
            var r = Math.random() * 16 | 0, v = c === 'x' ? r : (r & 0x3 | 0x8);
            return v.toString(16);
        });
    };

    /* ================================================
     * For lazy people
     * ================================================ */

    /**
     * Shortcut function: show
     * 
     * @param {type} options
     * @returns the created dialog instance
     */
    BootstrapDialog.show = function(options) {
        return new BootstrapDialog(options).open();
    };

    /**
     * Alert window
     * 
     * @param {type} message
     * @param {type} callback
     * @returns the created dialog instance
     */
    BootstrapDialog.alert = function(message, callback) {
        return new BootstrapDialog({
            message: message,
            data: {
                'callback': callback
            },
            closable: false,
            buttons: [{
                    label: 'OK',
                    action: function(dialog) {
                        typeof dialog.getData('callback') === 'function' && dialog.getData('callback')(true);
                        dialog.close();
                    }
                }]
        }).open();
    };

    /**
     * Confirm window
     * 
     * @param {type} message
     * @param {type} callback
     * @returns the created dialog instance
     */
    BootstrapDialog.confirm = function(message, callback) {
        return new BootstrapDialog({
            title: 'Confirmation',
            message: message,
            closable: false,
            data: {
                'callback': callback
            },
            buttons: [{
                    label: 'Cancel',
                    action: function(dialog) {
                        typeof dialog.getData('callback') === 'function' && dialog.getData('callback')(false);
                        dialog.close();
                    }
                }, {
                    label: 'OK',
                    cssClass: 'btn-primary',
                    action: function(dialog) {
                        typeof dialog.getData('callback') === 'function' && dialog.getData('callback')(true);
                        dialog.close();
                    }
                }]
        }).open();
    };

    BootstrapDialog.init = function() {
        // check for nodeJS
        var hasModule = (typeof module !== 'undefined' && module.exports);

        // CommonJS module is defined
        if (hasModule)
            module.exports = BootstrapDialog;
        else if (typeof define === "function" && define.amd)
            define("bootstrap-dialog", function() {
                return BootstrapDialog;
            });
        else
            window.BootstrapDialog = BootstrapDialog;
    };
    BootstrapDialog.init();

})(window.jQuery);