/*******************************************************************************
 * Copyright 2018 The MIT Internet Trust Consortium
 *
 * Portions copyright 2011-2013 The MITRE Corporation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *******************************************************************************/
var SystemScopeModel = Backbone.Model.extend({
	idAttribute: 'id',

	defaults: {
		id: null,
		description: null,
		icon: null,
		value: null,
		defaultScope: false,
		restricted: false
	},

	urlRoot: 'api/scopes'
});

var SystemScopeCollection = Backbone.Collection.extend({
	idAttribute: 'id',

	model: SystemScopeModel,

	url: 'api/scopes',

	defaultScopes: function() {
		filtered = this.filter(function(scope) {
			return scope.get("defaultScope") === true;
		});
		return new SystemScopeCollection(filtered);
	},

	unrestrictedScopes: function() {
		filtered = this.filter(function(scope) {
			return scope.get("restricted") !== true;
		});
		return new SystemScopeCollection(filtered);
	},

	defaultUnrestrictedScopes: function() {
		filtered = this.filter(function(scope) {
			return scope.get("defaultScope") === true && scope.get("restricted") !== true;
		});
		return new SystemScopeCollection(filtered);
	},

	getByValue: function(value) {
		var scopes = this.where({
			value: value
		});
		if (scopes.length == 1) {
			return scopes[0];
		} else {
			return null;
		}
	}

});

var SystemScopeView = Backbone.View.extend({

	tagName: 'tr',

	initialize: function(options) {
		this.options = options;

		if (!this.template) {
			this.template = _.template($('#tmpl-system-scope').html());
		}

		this.model.bind('change', this.render, this);

	},

	events: {
		'click .btn-edit': 'editScope',
		'click .btn-delete': 'deleteScope'
	},

	editScope: function(e) {
		e.preventDefault();
		app.navigate('admin/scope/' + this.model.id, {
			trigger: true
		});
	},

	render: function(eventName) {
		this.$el.html(this.template(this.model.toJSON()));

		$('.restricted', this.el).tooltip({
			title: $.t('scope.system-scope-table.tooltip-restricted')
		});
		$('.default', this.el).tooltip({
			title: $.t('scope.system-scope-table.tooltip-default')
		});

		$(this.el).i18n();
		return this;
	},

	deleteScope: function(e) {
		e.preventDefault();

		if (confirm($.t("scope.system-scope-table.confirm"))) {
			var _self = this;

			this.model.destroy({
				dataType: false,
				processData: false,
				success: function() {

					_self.$el.fadeTo("fast", 0.00, function() { // fade
						$(this).slideUp("fast", function() { // slide up
							$(this).remove(); // then remove from the DOM
							_self.parentView.togglePlaceholder();
						});
					});
				},
				error: app.errorHandlerView.handleError()
			});

			_self.parentView.delegateEvents();
		}

		return false;
	},

	close: function() {
		$(this.el).unbind();
		$(this.el).empty();
	}
});

var SystemScopeListView = Backbone.View.extend({
	tagName: 'span',

	initialize: function(options) {
		this.options = options;
	},

	load: function(callback) {
		if (this.model.isFetched) {
			callback();
			return;
		}

		$('#loadingbox').sheet('show');
		$('#loading').html('<span class="label" id="loading-scopes">' + $.t('common.scopes') + '</span> ');

		$.when(this.model.fetchIfNeeded({
			success: function(e) {
				$('#loading-scopes').addClass('label-success');
			},
			error: app.errorHandlerView.handleError()
		})).done(function() {
			$('#loadingbox').sheet('hide');
			callback();
		});
	},

	events: {
		"click .new-scope": "newScope",
		"click .refresh-table": "refreshTable"
	},

	newScope: function(e) {
		this.remove();
		app.navigate('admin/scope/new', {
			trigger: true
		});
	},

	refreshTable: function(e) {
		var _self = this;
		$('#loadingbox').sheet('show');
		$('#loading').html('<span class="label" id="loading-scopes">' + $.t('common.scopes') + '</span> ');

		$.when(this.model.fetch({
			success: function(e) {
				$('#loading-scopes').addClass('label-success');
			},
			error: app.errorHandlerView.handleError()
		})).done(function() {
			$('#loadingbox').sheet('hide');
			_self.render();
		});
	},

	togglePlaceholder: function() {
		if (this.model.length > 0) {
			$('#scope-table', this.el).show();
			$('#scope-table-empty', this.el).hide();
		} else {
			$('#scope-table', this.el).hide();
			$('#scope-table-empty', this.el).show();
		}
	},

	render: function(eventName) {

		// append and render the table structure
		$(this.el).html($('#tmpl-system-scope-table').html());

		var _self = this;

		_.each(this.model.models, function(scope) {
			var view = new SystemScopeView({
				model: scope
			});
			view.parentView = _self;
			$("#scope-table", _self.el).append(view.render().el);
		}, this);

		this.togglePlaceholder();
		$(this.el).i18n();
		return this;
	}
});

var SystemScopeFormView = Backbone.View
		.extend({
			tagName: 'span',

			initialize: function(options) {
				this.options = options;
				if (!this.template) {
					this.template = _.template($('#tmpl-system-scope-form').html());
				}
				if (!this.iconTemplate) {
					this.iconTemplate = _.template($('#tmpl-system-scope-icon').html());
				}

				// initialize our icon set into slices for the selector
				if (!this.bootstrapIcons) {
					this.bootstrapIcons = [];

					var iconList = ['glass', 'music', 'search', 'envelope', 'heart', 'star', 'star-empty', 'user', 'film', 'th-large', 'th', 'th-list', 'ok', 'remove', 'zoom-in', 'zoom-out', 'off', 'signal', 'cog', 'trash', 'home', 'file', 'time', 'road', 'download-alt', 'download', 'upload', 'inbox', 'play-circle', 'repeat', 'refresh', 'list-alt', 'lock',
							'flag', 'headphones', 'volume-off', 'volume-down', 'volume-up', 'qrcode', 'barcode', 'tag', 'tags', 'book', 'bookmark', 'print', 'camera', 'font', 'bold', 'italic', 'text-height', 'text-width', 'align-left', 'align-center', 'align-right', 'align-justify', 'list', 'indent-left', 'indent-right', 'facetime-video', 'picture',
							'pencil', 'map-marker', 'adjust', 'tint', 'edit', 'share', 'check', 'move', 'step-backward', 'fast-backward', 'backward', 'play', 'pause', 'stop', 'forward', 'fast-forward', 'step-forward', 'eject', 'chevron-left', 'chevron-right', 'plus-sign', 'minus-sign', 'remove-sign', 'ok-sign', 'question-sign', 'info-sign', 'screenshot',
							'remove-circle', 'ok-circle', 'ban-circle', 'arrow-left', 'arrow-right', 'arrow-up', 'arrow-down', 'share-alt', 'resize-full', 'resize-small', 'plus', 'minus', 'asterisk', 'exclamation-sign', 'gift', 'leaf', 'fire', 'eye-open', 'eye-close', 'warning-sign', 'plane', 'calendar', 'random', 'comment', 'magnet', 'chevron-up',
							'chevron-down', 'retweet', 'shopping-cart', 'folder-close', 'folder-open', 'resize-vertical', 'resize-horizontal', 'hdd', 'bullhorn', 'bell', 'certificate', 'thumbs-up', 'thumbs-down', 'hand-right', 'hand-left', 'hand-up', 'hand-down', 'circle-arrow-right', 'circle-arrow-left', 'circle-arrow-up', 'circle-arrow-down', 'globe',
							'wrench', 'tasks', 'filter', 'briefcase', 'fullscreen'];

					var size = 3;
					while (iconList.length > 0) {
						this.bootstrapIcons.push(iconList.splice(0, size));
					}

				}
			},

			events: {
				'click .btn-save': 'saveScope',
				'click .btn-cancel': function() {
					app.navigate('admin/scope', {
						trigger: true
					});
				},
				'click .btn-icon': 'selectIcon'
			},

			load: function(callback) {
				if (this.model.isFetched) {
					callback();
					return;
				}

				$('#loadingbox').sheet('show');
				$('#loading').html('<span class="label" id="loading-scopes">' + $.t("common.scopes") + '</span> ');

				$.when(this.model.fetchIfNeeded({
					success: function(e) {
						$('#loading-scopes').addClass('label-success');
					},
					error: app.errorHandlerView.handleError()
				})).done(function() {
					$('#loadingbox').sheet('hide');
					callback();
				});

			},

			saveScope: function(e) {
				e.preventDefault();

				var value = $('#value input').val();

				if (value == null || value.trim() == "") {
					// error: can't have a blank scope
					return false;
				}

				var valid = this.model.set({
					value: value,
					description: $('#description textarea').val(),
					icon: $('#iconDisplay input').val(),
					defaultScope: $('#defaultScope input').is(':checked'),
					restricted: $('#restricted input').is(':checked')
				});

				if (valid) {

					var _self = this;
					this.model.save({}, {
						success: function() {
							app.systemScopeList.add(_self.model);
							app.navigate('admin/scope', {
								trigger: true
							});
						},
						error: app.errorHandlerView.handleError()
					});
				}

				return false;
			},

			selectIcon: function(e) {
				e.preventDefault();

				var icon = e.target.value;

				$('#iconDisplay input').val(icon);
				$('#iconDisplay #iconName').html(icon);
				$('#iconDisplay i').removeClass();
				$('#iconDisplay i').addClass('icon-' + icon);
				$('#iconDisplay i').addClass('icon-white');

				$('#iconSelector').modal('hide');

				return false;
			},

			render: function(eventName) {
				this.$el.html(this.template(this.model.toJSON()));

				_.each(this.bootstrapIcons, function(items) {
					$("#iconSelector .modal-body", this.el).append(this.iconTemplate({
						items: items
					}));
				}, this);

				$(this.el).i18n();
				return this;
			}
		});

ui.routes.push({
	path: "admin/scope",
	name: "siteScope",
	callback: function() {

		if (!isAdmin()) {
			this.root();
			return;
		}

		this.breadCrumbView.collection.reset();
		this.breadCrumbView.collection.add([{
			text: $.t('admin.home'),
			href: ""
		}, {
			text: $.t('scope.manage'),
			href: "manage/#admin/scope"
		}]);

		this.updateSidebar('admin/scope');

		var view = new SystemScopeListView({
			model: this.systemScopeList
		});

		view.load(function() {
			$('#content').html(view.render().el);
			view.delegateEvents();
			setPageTitle($.t('scope.manage'));
		});

	}
});

ui.routes.push({
	path: "admin/scope/new",
	name: "newScope",
	callback: function() {

		if (!isAdmin()) {
			this.root();
			return;
		}

		this.breadCrumbView.collection.reset();
		this.breadCrumbView.collection.add([{
			text: $.t('admin.home'),
			href: ""
		}, {
			text: $.t('scope.manage'),
			href: "manage/#admin/scope"
		}, {
			text: $.t('scope.system-scope-form.new'),
			href: "manage/#admin/scope/new"
		}]);

		this.updateSidebar('admin/scope');

		var scope = new SystemScopeModel();

		var view = new SystemScopeFormView({
			model: scope
		});
		view.load(function() {
			$('#content').html(view.render().el);
			setPageTitle($.t('scope.system-scope-form.new'));
		});

	}
});

ui.routes.push({
	path: "admin/scope/:id",
	name: "editScope",
	callback: function(sid) {

		if (!isAdmin()) {
			this.root();
			return;
		}

		this.breadCrumbView.collection.reset();
		this.breadCrumbView.collection.add([{
			text: $.t('admin.home'),
			href: ""
		}, {
			text: $.t('scope.manage'),
			href: "manage/#admin/scope"
		}, {
			text: $.t('scope.system-scope-form.edit'),
			href: "manage/#admin/scope/" + sid
		}]);

		this.updateSidebar('admin/scope');

		var scope = this.systemScopeList.get(sid);
		if (!scope) {
			scope = new SystemScopeModel({
				id: sid
			});
		}

		var view = new SystemScopeFormView({
			model: scope
		});
		view.load(function() {
			$('#content').html(view.render().el);
			setPageTitle($.t('scope.system-scope-form.new'));
		});

	}
});

ui.templates.push('resources/template/scope.html');

ui.init.push(function(app) {
	app.systemScopeList = new SystemScopeCollection();
});