/* jshint expr: true */
!(function ($, wysi) {
    'use strict';

    var templates = function (key, locale, options) {
        return wysi.tpl[key]({locale: locale, options: options});
    };

    var Wysihtml5 = function (el, options) {
        this.el = el;
        var toolbarOpts = options || defaultOptions;
        for (var t in toolbarOpts.customTemplates) {
            wysi.tpl[t] = toolbarOpts.customTemplates[t];
        }
        this.toolbar = this.createToolbar(el, toolbarOpts);
        this.editor = this.createEditor(options);

        window.editor = this.editor;

        $('iframe.wysihtml5-sandbox').each(function (i, el) {
            $(el.contentWindow).off('focus.wysihtml5').on({
                'focus.wysihtml5': function () {
                    $('li.dropdown').removeClass('open');
                }
            });
        });
    };

    Wysihtml5.prototype = {

        constructor: Wysihtml5,

        createEditor: function (options) {
            options = options || {};

            // Add the toolbar to a clone of the options object so multiple instances
            // of the WYISYWG don't break because 'toolbar' is already defined
            options = $.extend(true, {}, options);
            options.toolbar = this.toolbar[0];

            var editor = new wysi.Editor(this.el[0], options);

            if (options && options.events) {
                for (var eventName in options.events) {
                    editor.on(eventName, options.events[eventName]);
                }
            }
            return editor;
        },

        createToolbar: function (el, options) {
            var self = this;
            var toolbar = $('<ul/>', {
                'class': 'wysihtml5-toolbar',
                'style': 'display:none'
            });
            var culture = options.locale || defaultOptions.locale || 'en';
            for (var key in defaultOptions) {
                var value = false;

                if (options[key] !== undefined) {
                    if (options[key] === true) {
                        value = true;
                    }
                } else {
                    value = defaultOptions[key];
                }

                if (value === true) {
                    toolbar.append(templates(key, locale[culture], options));

                    if (key === 'html') {
                        this.initHtml(toolbar);
                    }

                    if (key === 'link') {
                        this.initInsertLink(toolbar);
                    }

                    if (key === 'image') {
                        this.initInsertImage(toolbar);
                    }
                }
            }

            if (options.toolbar) {
                for (key in options.toolbar) {
                    toolbar.append(options.toolbar[key]);
                }
            }

            toolbar.find('a[data-wysihtml5-command="formatBlock"]').click(function (e) {
                var target = e.target || e.srcElement;
                var el = $(target);
                self.toolbar.find('.current-font').text(el.html());
            });

            toolbar.find('a[data-wysihtml5-command="foreColor"]').click(function (e) {
                var target = e.target || e.srcElement;
                var el = $(target);
                self.toolbar.find('.current-color').text(el.html());
            });

            this.el.before(toolbar);

            return toolbar;
        },

        initHtml: function (toolbar) {
            var changeViewSelector = 'a[data-wysihtml5-action="change_view"]';
            toolbar.find(changeViewSelector).click(function (e) {
                toolbar.find('a.btn').not(changeViewSelector).toggleClass('disabled');
            });
        },

        initInsertImage: function (toolbar) {
            var self = this;
            var insertImageModal = toolbar.find('.bootstrap-wysihtml5-insert-image-modal');
            var urlInput = insertImageModal.find('.bootstrap-wysihtml5-insert-image-url');
            var insertButton = insertImageModal.find('a.btn-primary');
            var initialValue = urlInput.val();
            var caretBookmark;

            var insertImage = function () {
                var url = urlInput.val();
                urlInput.val(initialValue);
                self.editor.currentView.element.focus();
                if (caretBookmark) {
                    self.editor.composer.selection.setBookmark(caretBookmark);
                    caretBookmark = null;
                }
                self.editor.composer.commands.exec('insertImage', url);
            };

            urlInput.keypress(function (e) {
                if (e.which == 13) {
                    insertImage();
                    insertImageModal.modal('hide');
                }
            });

            insertButton.click(insertImage);

            insertImageModal.on('shown', function () {
                urlInput.focus();
            });

            insertImageModal.on('hide', function () {
                self.editor.currentView.element.focus();
            });

            toolbar.find('a[data-wysihtml5-command=insertImage]').click(function () {
                var activeButton = $(this).hasClass('wysihtml5-command-active');

                if (!activeButton) {
                    self.editor.currentView.element.focus(false);
                    caretBookmark = self.editor.composer.selection.getBookmark();
                    insertImageModal.appendTo('body').modal('show');
                    insertImageModal.on('click.dismiss.modal', '[data-dismiss="modal"]', function (e) {
                        e.stopPropagation();
                    });
                    return false;
                } else {
                    return true;
                }
            });
        },

        initInsertLink: function (toolbar) {
            var self = this;
            var insertLinkModal = toolbar.find('.bootstrap-wysihtml5-insert-link-modal');
            var urlInput = insertLinkModal.find('.bootstrap-wysihtml5-insert-link-url');
            var targetInput = insertLinkModal.find('.bootstrap-wysihtml5-insert-link-target');
            var insertButton = insertLinkModal.find('a.btn-primary');
            var initialValue = urlInput.val();
            var caretBookmark;

            var insertLink = function () {
                var url = urlInput.val();
                urlInput.val(initialValue);
                self.editor.currentView.element.focus();
                if (caretBookmark) {
                    self.editor.composer.selection.setBookmark(caretBookmark);
                    caretBookmark = null;
                }

                var newWindow = targetInput.prop('checked');
                self.editor.composer.commands.exec('createLink', {
                    'href': url,
                    'target': (newWindow ? '_blank' : '_self'),
                    'rel': (newWindow ? 'nofollow' : '')
                });
            };
            var pressedEnter = false;

            urlInput.keypress(function (e) {
                if (e.which == 13) {
                    insertLink();
                    insertLinkModal.modal('hide');
                }
            });

            insertButton.click(insertLink);

            insertLinkModal.on('shown', function () {
                urlInput.focus();
            });

            insertLinkModal.on('hide', function () {
                self.editor.currentView.element.focus();
            });

            toolbar.find('a[data-wysihtml5-command=createLink]').click(function () {
                var activeButton = $(this).hasClass('wysihtml5-command-active');

                if (!activeButton) {
                    self.editor.currentView.element.focus(false);
                    caretBookmark = self.editor.composer.selection.getBookmark();
                    insertLinkModal.appendTo('body').modal('show');
                    insertLinkModal.on('click.dismiss.modal', '[data-dismiss="modal"]', function (e) {
                        e.stopPropagation();
                    });
                    return false;
                } else {
                    return true;
                }
            });
        }
    };

    // these define our public api
    var methods = {
        resetDefaults: function () {
            $.fn.wysihtml5.defaultOptions = $.extend(true, {}, $.fn.wysihtml5.defaultOptionsCache);
        },
        bypassDefaults: function (options) {
            return this.each(function () {
                var $this = $(this);
                $this.data('wysihtml5', new Wysihtml5($this, options));
            });
        },
        shallowExtend: function (options) {
            var settings = $.extend({}, $.fn.wysihtml5.defaultOptions, options || {}, $(this).data());
            var that = this;
            return methods.bypassDefaults.apply(that, [settings]);
        },
        deepExtend: function (options) {
            var settings = $.extend(true, {}, $.fn.wysihtml5.defaultOptions, options || {});
            var that = this;
            return methods.bypassDefaults.apply(that, [settings]);
        },
        init: function (options) {
            var that = this;
            return methods.shallowExtend.apply(that, [options]);
        }
    };

    $.fn.wysihtml5 = function (method) {
        if (methods[method]) {
            return methods[method].apply(this, Array.prototype.slice.call(arguments, 1));
        } else if (typeof method === 'object' || !method) {
            return methods.init.apply(this, arguments);
        } else {
            $.error('Method ' + method + ' does not exist on jQuery.wysihtml5');
        }
    };

    $.fn.wysihtml5.Constructor = Wysihtml5;

    var defaultOptions = $.fn.wysihtml5.defaultOptions = {
        'font-styles': true,
        'color': false,
        'emphasis': true,
        'lists': true,
        'html': false,
        'link': true,
        'image': true,
        events: {},
        parserRules: {
            classes: {
                'wysiwyg-color-silver': 1,
                'wysiwyg-color-gray': 1,
                'wysiwyg-color-white': 1,
                'wysiwyg-color-maroon': 1,
                'wysiwyg-color-red': 1,
                'wysiwyg-color-purple': 1,
                'wysiwyg-color-fuchsia': 1,
                'wysiwyg-color-green': 1,
                'wysiwyg-color-lime': 1,
                'wysiwyg-color-olive': 1,
                'wysiwyg-color-yellow': 1,
                'wysiwyg-color-navy': 1,
                'wysiwyg-color-blue': 1,
                'wysiwyg-color-teal': 1,
                'wysiwyg-color-aqua': 1,
                'wysiwyg-color-orange': 1
            },
            tags: {
                'b': {},
                'i': {},
                'strong': {},
                'em': {},
                'p': {},
                'br': {},
                'ol': {},
                'ul': {},
                'li': {},
                'h1': {},
                'h2': {},
                'h3': {},
                'h4': {},
                'h5': {},
                'h6': {},
                'blockquote': {},
                'u': 1,
                'img': {
                    'check_attributes': {
                        'width': 'numbers',
                        'alt': 'alt',
                        'src': 'url',
                        'height': 'numbers'
                    }
                },
                'a': {
                    check_attributes: {
                        'href': 'url' // important to avoid XSS
                    },
                    'set_attributes': {
                        'target': '_blank',
                        'rel': 'nofollow'
                    }
                },
                'span': 1,
                'div': 1,
                // to allow save and edit files with code tag hacks
                'code': 1,
                'pre': 1
            }
        },
        locale: 'en'
    };

    if (typeof $.fn.wysihtml5.defaultOptionsCache === 'undefined') {
        $.fn.wysihtml5.defaultOptionsCache = $.extend(true, {}, $.fn.wysihtml5.defaultOptions);
    }

    var locale = $.fn.wysihtml5.locale = {};
})(window.jQuery, window.wysihtml5);