Synnefo

// Copyright 2013 GRNET S.A. All rights reserved.

// 

// Redistribution and use in source and binary forms, with or

// without modification, are permitted provided that the following

// conditions are met:

// 

//   1. Redistributions of source code must retain the above

//      copyright notice, this list of conditions and the following

//      disclaimer.

// 

//   2. Redistributions in binary form must reproduce the above

//      copyright notice, this list of conditions and the following

//      disclaimer in the documentation and/or other materials

//      provided with the distribution.

// 

// THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS

// OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR

// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF

// USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED

// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN

// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

// POSSIBILITY OF SUCH DAMAGE.

// 

// The views and conclusions contained in the software and

// documentation are those of the authors and should not be

// interpreted as representing official policies, either expressed

// or implied, of GRNET S.A.

// 

;(function(root){

    // root

    var root = root;

    // setup namepsaces

    var snf = root.synnefo = root.synnefo || {};

    var models = snf.models = snf.models || {}

    var storage = snf.storage = snf.storage || {};

    var ui = snf.ui = snf.ui || {};

    var util = snf.util || {};

    var views = snf.views = snf.views || {}

    // shortcuts

    var bb = root.Backbone;

    // logging

    var logger = new snf.logging.logger("SNF-VIEWS");

    var debug = _.bind(logger.debug, logger);

    views.NetworkCreateView = views.Overlay.extend({

        view_id: "network_create_view",

        content_selector: "#networks-create-content",

        css_class: 'overlay-networks-create overlay-info',

        overlay_id: "network-create-overlay",

        title: "Create new private network",

        subtitle: "Networks",

        initialize: function(options) {

            views.NetworkCreateView.__super__.initialize.apply(this);

            this.create_button = this.$("form .form-action.create");

            this.text = this.$(".network-create-name");

            this.form = this.$("form");

            this.dhcp_select = this.$("#network-create-dhcp");

            this.type_select = this.$("#network-create-type");

            this.subnet_select = this.$("#network-create-subnet");

            this.subnet_custom = this.$("#network-create-subnet-custom");

            this.dhcp_form = this.$("#network-create-dhcp-fields");

            this.subnet_select.find(".subnet").remove();

            _.each(synnefo.config.network_suggested_subnets, function(subnet){

                this.subnet_select.append($('<option value='+subnet+' class="subnet">'+subnet+'</option>'));

            }, this);

            this.type_select.find(".subnet").remove();

            _.each(synnefo.config.network_available_types, function(name, value){

                this.type_select.append($('<option value='+value+' class="subnet">'+name+'</option>'));

            }, this);

            if (_.keys(synnefo.config.network_available_types).length <= 1) {

                this.type_select.closest(".form-field").hide();

            }

            this.check_dhcp_form();

            this.init_handlers();

        },

        reset_dhcp_form: function() {

          this.subnet_select.find("option")[0].selected = 1;

          this.subnet_custom.val("");

        },

        check_dhcp_form: function() {

            if (this.dhcp_select.is(":checked")) {

                this.dhcp_form.show();

            } else {

                this.dhcp_form.hide();

            }

            if (this.subnet_select.val() == "custom") {

                this.subnet_custom.show();

            } else {

                this.subnet_custom.hide();

            }

        },

        init_handlers: function() {

            this.dhcp_select.click(_.bind(function(e){

                this.check_dhcp_form();

                this.reset_dhcp_form();

            }, this));

            this.subnet_select.change(_.bind(function(e){

                this.check_dhcp_form();

                if (this.subnet_custom.is(":visible")) {

                    this.subnet_custom.focus();

                }

            }, this));

            this.create_button.click(_.bind(function(e){

                this.submit();

            }, this));

            this.form.submit(_.bind(function(e){

                e.preventDefault();

                this.submit;

                return false;

            }, this))

            this.text.keypress(_.bind(function(e){

                if (e.which == 13) {this.submit()};

            },this))

        },

        submit: function() {

            if (this.validate()) {

                this.create();

            };

        },

        validate: function() {

            // sanitazie

            var t = this.text.val();

            t = t.replace(/^\s+|\s+$/g,"");

            this.text.val(t);

            if (this.text.val() == "") {

                this.text.closest(".form-field").addClass("error");

                this.text.focus();

                return false;

            } else {

                this.text.closest(".form-field").removeClass("error");

            }

            if (this.dhcp_select.is(":checked")) {

                if (this.subnet_select.val() == "custom") {

                    var sub = this.subnet_custom.val();

                    sub = sub.replace(/^\s+|\s+$/g,"");

                    this.subnet_custom.val(sub);

                    if (!synnefo.util.IP_REGEX.exec(this.subnet_custom.val())) {

                        this.subnet_custom.closest(".form-field").prev().addClass("error");

                        return false;

                    } else {

                        this.subnet_custom.closest(".form-field").prev().removeClass("error");

                    }

                };

            }

            return true;

        },

        get_next_available_subnet: function() {

            var auto_tpl = synnefo.config.automatic_network_range_format;

            if (!auto_tpl) {

                return null

            }

            var index = 0;

            var subnet = auto_tpl.format(index);

            var networks = synnefo.storage.networks;

            var check_existing = function(n) { return n.get('cidr') == subnet }

            while (networks.filter(check_existing).length > 0 && index <= 255) {

                index++;

                subnet = auto_tpl.format(index); 

            }

            return subnet;

        },

        create: function() {

            this.create_button.addClass("in-progress");

            var name = this.text.val();

            var dhcp = this.dhcp_select.is(":checked");

            var subnet = null;

            var type = this.type_select.val();

            if (dhcp) {

                if (this.subnet_select.val() == "custom") {

                    subnet = this.subnet_custom.val();

                } else if (this.subnet_select.val() == "auto") {

                    subnet = this.get_next_available_subnet()

                } else {

                    subnet = this.subnet_select.val();

                }

            }

            snf.storage.networks.create(name, type, subnet, dhcp, _.bind(function(){

                this.hide();

            }, this));

        },

        beforeOpen: function() {

            this.create_button.removeClass("in-progress")

            this.text.closest(".form-field").removeClass("error");

            this.text.val("");

            this.text.show();

            this.text.focus();

            this.subnet_custom.val("");

            this.subnet_select.val("auto");

            this.dhcp_select.attr("checked", true);

            this.type_select.val(_.keys(synnefo.config.network_available_types)[0]);

            this.check_dhcp_form();

        },

        onOpen: function() {

            this.text.focus();

        }

    });

    views.NetworkPortView = views.ext.ModelView.extend({

      tpl: '#network-port-view-tpl',

      vm_logo_url: function(vm) {

        if (!this.model.get('vm')) { return '' }

        return synnefo.ui.helpers.vm_icon_path(this.model.get('vm'), 'medium');

      },

      set_confirm: function() {

        var parent = this.parent_view.parent_view.el;

        parent.addClass("subactionpending");

      },

      unset_confirm: function() {

        var parent = this.parent_view.parent_view.el;

        parent.removeClass("subactionpending");

      },

      post_init_element: function() {

        this.in_progress = false;

        this.firewall = this.$(".firewall-content").hide();

        this.firewall_toggler = this.$(".firewall-toggle");

        this.firewall_apply = this.$(".firewall-apply");

        this.firewall_legends = this.firewall.find(".checkbox-legends");

        this.firewall_inputs = this.firewall.find("input");

        this.firewall_apply = this.firewall.find("button");

        this.firewall_visible = false;

        this.firewall_toggler.click(_.bind(function() {

          this.toggle_firewall();

        }, this));

        this.firewall.find(".checkbox-legends, input").click(

          _.bind(this.handle_firewall_choice_click, this));

        this.update_firewall();

      },

      toggle_firewall: function(e, hide, cb) {

          hide = hide === undefined ? false : hide;

          if (hide) {

            this.firewall.stop().hide();

          } else {

            if (!cb) { cb = function() {}}

            this.firewall.slideToggle(cb);

          }

          this.firewall_toggler.toggleClass("open");

          this.firewall_visible = this.firewall_toggler.hasClass("open");

          if (!this.firewall_visible) {

            this.firewall_apply.fadeOut(50);

          }

          this.update_firewall();

      },

      post_hide: function() {

        views.NetworkPortView.__super__.post_hide.apply(this);

        if (this.firewall_visible) {

          this.toggle_firewall({}, true);

        }

      },

      handle_firewall_choice_click: function(e) {

          var el = $(e.currentTarget);

          if (el.get(0).tagName == "INPUT") {

            el = el.next();

          }

          var current = this.model.get("firewall_status");

          var selected = el.prev().val();

          el.parent().find("input").attr("checked", false);

          el.prev().attr("checked", true);

          if (selected != current) {

            this.firewall_apply.show();

          } else {

            this.firewall_apply.hide();

          }

      },

      disconnect_port: function(model, e) {

        e && e.stopPropagation();

        this.model.actions.reset_pending();

        this.model.disconnect(_.bind(this.disconnect_port_complete, this));

      },

      disconnect_port_complete: function() {

      },

      set_firewall: function() {

        var value = this.get_selected_value();

        this.firewall_apply.addClass("in-progress");

        this.model.set({'pending_firewall': value});

        this.model.set_firewall(value, this.set_firewall_complete, 

                                       this.set_firewall_complete);

        this.in_progress = true;

      },

      set_firewall_complete: function() {

        this.in_progress = false;

        this.toggle_firewall({}, false, _.bind(function() {

          this.firewall_apply.removeClass("in-progress").show();

        }, this));

      },

      get_selected_value: function() {

        return this.firewall_inputs.filter(":checked").val();

      },

      update_firewall: function() {

        var value = this.model.get("firewall_status");

        var value_selector = "[value=" + value + "]"

        var status_span = this.firewall_toggler.find("span span");

        var current_choice = this.firewall_inputs.filter(value_selector);

        if (_.contains(["PROTECTED", "ENABLED"], value)) {

          status_span.removeClass("firewall-off").addClass("firewall-on");

          status_span.text("On");

        } else {

          status_span.removeClass("firewall-on").addClass("firewall-off");

          status_span.text("Off");

        }

        this.firewall_inputs.attr("checked", false);

        this.firewall_legends.removeClass("current");

        current_choice.attr("checked", true)

        current_choice.next().addClass("current");

      },

      show_vm_details: function() {

        var vm = this.model.get('vm');

        if (vm) { snf.ui.main.show_vm_details(vm) }

      }

    });

    views.NetworkPortCollectionView = views.ext.CollectionView.extend({

      tpl: '#network-port-collection-view-tpl',

      model_view_cls: views.NetworkPortView,

      rivets_view: true,

      get_rivet_object: function() {

        return {

          model: this.collection.network

        }

      },

      resolve_storage_object: function() {

        return this.collection

      },

      show_connect_vms_overlay: function() {

        this.parent_view.show_connect_vms_overlay();

      }

    });

    views.NetworkView = views.ext.ModelView.extend({

      tpl: '#network-view-tpl',

      auto_bind: ['connect_vm'],

      post_init_element: function() {

        this.ports = this.$(".ports.nested-model-list");

        this.ports.hide();

        this.ports_toggler = this.$(".network-ports-toggler");

        this.ports_toggler.click(this.toggle_ports);

        this.ports_visible = false;

      },

      toggle_ports: function(e, hide) {

        hide = hide === undefined ? false : hide;

        if (hide) {

          this.ports.stop().hide();

        } else {

          this.ports.stop().slideToggle();

        }

        this.ports_toggler.find(".cont-toggler").toggleClass("open");

        this.ports_visible = this.ports_toggler.find(".cont-toggler").hasClass("open");

      },

      get_network_icon: function() {

        var ico = this.model.get('is_public') ? 'internet.png' : 'network.png';

        return synnefo.config.media_url + 'images/' + ico;

      },

      post_hide: function() {

        views.NetworkView.__super__.post_hide.apply(this);

        if (this.ports_visible) {

          this.toggle_ports({}, true);

        }

      },

      status_map: {

        'ACTIVE': 'Active',

        'CONNECTING': 'Connecting',

        'DISCONNECTING': 'Disconnecting',

        'REMOVING': 'Destroying'

      },

      status_cls_map: {

        'ACTIVE': 'status-active',

        'DISCONNECTING': 'status-progress',

        'CONNECTING': 'status-progress',

        'REMOVING': 'status-progress'

      },

      status_cls: function(status) {    

        return this.status_cls_map[this.model.get('ext_status')]

      },

      status_display: function(status) {

        var status;

        if (this.model.id == "snf-combined-public-network") {

          return "Internet"

        }

        var cidr = this.model.get('cidr');

        var status = this.model.get('ext_status');

        if (status != 'REMOVING' && cidr) {

          return cidr

        }

        return this.status_map[status];

      },

      connect_vms: function(vms, cb) {

        var finished = 0;

        var completed = function() {

          finished++;

          if (finished == vms.length) {

            cb();

          }

        }

        _.each(vms, function(vm) {

          this.model.connect_vm(vm, completed);

        }, this);

      },

      remove: function(model, e) {

        e && e.stopPropagation();

        this.model.actions.reset_pending();

        this.model.destroy({

          success: _.bind(function() {

            this.model.set({status: 'REMOVING'});

            this.model.set({ext_status: 'REMOVING'});

            // force status display update

            this.model.set({cidr: 'REMOVING'});

          }, this),

          silent: true

        });

      },

      show_connect_vms_overlay: function() {

        var view = new views.NetworkConnectVMsOverlay();

        vms = this.model.pluggable_vms();

        var cb = _.bind(function(vms) {

          view.set_in_progress();

          var cbinner = function() {

            view.hide();

            delete view;

          }

          this.connect_vms(vms, cbinner);

        }, this);

        view.show_vms(this.model, vms, [], cb, "subtitle");

      }

    });

    views.NetworksCollectionView = views.ext.CollectionView.extend({

      collection: storage.networks,

      collection_name: 'networks',

      model_view_cls: views.NetworkView,

      create_view_cls: views.NetworkCreateView,

      init: function() {

        this.public_added = false;

        views.NetworksCollectionView.__super__.init.apply(this, arguments);

      },

      check_empty: function() {

        views.NetworksCollectionView.__super__.check_empty.apply(this, arguments);

        //if (this.$(".private").children().length == 0) {

          //this.$(".private").hide();

        //} else {

          //this.$(".private").show();

        //}

      },

      add_model: function(m) {

        if (m.get('is_public') && !this.public_added) {

          this.combined_public = new models.networks.CombinedPublicNetwork();

          this.combined_public_view = new views.NetworkView({

            model: this.combined_public

          });

          this.add_model_view(this.combined_public_view, this.combined_public, 0);

          this.combined_public_view.$("i").hide();

          this.public_added = true;

        }

        return views.NetworksCollectionView.__super__.add_model.call(this, m);

      },

      remove_model: function(m) {

        if (m.id == 'snf-combined-public-network') {

          return;

        } else {

          return views.NetworksCollectionView.__super__.remove_model.call(this, m);

        }

      },

      get_model_view_cls: function(m) {

        if (!this.public_added) {

        }

        if (m.get('is_public')) {

          return false;

        }

        return views.NetworksCollectionView.__super__.get_model_view_cls.apply(this, [m]);

      },

      parent_for_model: function(m) {

        if (m.get('is_public')) {

          return this.list_el.find(".public");

        } else {

          return this.list_el.find(".private");

        }

      }

    });

    views.NetworksPaneView = views.ext.PaneView.extend({

      id: "pane",

      el: '#networks-pane',

      collection_view_cls: views.NetworksCollectionView,

      collection_view_selector: '#networks-list-view'

    });

    views.NetworkConnectVMsOverlay = views.Overlay.extend({

        title: "Connect machine",

        overlay_id: "overlay-select-vms",

        content_selector: "#network-vms-select-content",

        css_class: "overlay-info",

        allow_multiple: true,

        initialize: function() {

            views.NetworkConnectVMsOverlay.__super__.initialize.apply(this);

            this.list = this.$(".vms-list ul");

            this.empty_message = this.$(".empty-message");

            // flag for submit handler to avoid duplicate bindings

            this.submit_handler_set = false;

            this.in_progress = false;

        },

        handle_vm_click: function(el) {

            if (!this.allow_multiple) {

              $(el).closest("ul").find(".selected").removeClass("selected");

              $(el).addClass("selected");

            } else {

              $(el).toggleClass("selected");

            }

        },

        init_handlers: function() {

            var self = this;

            this.list.find("li").click(function() {

                self.handle_vm_click($(this));

            });

            if (!this.submit_handler_set) {

                // avoid duplicate submits

                this.el.find(".create, .assign").click(_.bind(function() {

                  if (!this.in_progress) {

                    this.submit();

                  }

                }, this));

                this.submit_handler_set = true;

            }

        },

        reset: function() {

            this.list.find("li").remove();

        },

        beforeOpen: function() {

            this.reset();

            this.update_layout();

        },

        vm: function(vm) {

            if (vm.id) { var id = vm.id } else {var id = vm}

            return this.list.find(".vm-" + id);

        },

        get_selected: function() {

            return this.list.find(".selected").map(function() {return $(this).data('vm')})

        },

        update_layout: function() {

            this.unset_in_progress();

            this.in_progress = false;

            if (this.vms.length == 0) {

                this.empty_message.show();

            } else {

                this.empty_message.hide();

            }

            _.each(this.vms, _.bind(function(vm){

                var html = '<li class="vm option options-object vm-{0}">' +

                           '<div class="options-object-cont">' +

                           '{2}' + 

                           '<span class="title">{1}</span>' + 

                           '<span class="value">{3}</span></div>' + 

                           '</li>';

                var el = $(html.format(vm.id, 

                       util.truncate(_.escape(vm.get("name")), 23), 

                       snf.ui.helpers.vm_icon_tag(vm, "small", {'class':'os'}),

                       _.escape(vm.get_os())

                ));

                el.data({vm:vm, vm_id:vm.id});

                this.list.append(el);

                vm.bind("remove", function(){ el.remove()})

                vm.bind("change:name", function(i,v){el.find(".title").text(v)})

            }, this));

            this.init_handlers();

            this.set_selected();

        },

        set_selected: function() {

            _.each(this.selected, _.bind(function(el){

                this.vm(el).addClass("selected");

            }, this));

        },

        set_in_progress: function() {

          this.$(".form-action").addClass("in-progress");

          this.in_progress = true;

        },

        unset_in_progress: function() {

          this.$(".form-action").removeClass("in-progress");

          this.in_progress = false;

        },

        show_vms: function(network, vms, selected, callback, subtitle) {

            this.network = network;

            this.reset();

            if (network) {

              this.set_subtitle(network.escape("name"));

            } else {

              this.set_subtitle(subtitle);

            }

            this.vms = vms;

            this.selected = selected;

            this.cb = callback;

            this.unset_in_progress();

            this.show(true);

        },

        submit: function() {

            if (!this.get_selected().length) { return }

            this.cb(this.get_selected());

        }

    });

})(this);