/**
 * Copyright JS Foundation and other contributors, http://js.foundation
 *
 * 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.
 **/

RED.subflow = (function() {

    var _subflowEditTemplate = '<script type="text/x-red" data-template-name="subflow">'+
        '<div class="form-row"><label for="node-input-name" data-i18n="[append]editor:common.label.name"><i class="fa fa-tag"></i> </label><input type="text" id="node-input-name"></div>'+
        '<div class="form-row" style="margin-bottom: 0px;"><label style="width: auto;" data-i18n="[append]editor:editor-tab.env"><i class="fa fa-th-list"></i> </label></div>'+
        '<div class="form-row node-input-env-container-row"><ol id="node-input-env-container"></ol></div>'+
        '</script>';

    var _subflowTemplateEditTemplate = '<script type="text/x-red" data-template-name="subflow-template">'+
        '<div class="form-row"><i class="fa fa-tag"></i> <label for="subflow-input-name" data-i18n="common.label.name"></label><input type="text" id="subflow-input-name"></div>'+
        '<div class="form-row"><i class="fa fa-folder-o"></i> <label for="subflow-input-category" data-i18n="editor:subflow.category"></label><select style="width: 250px;" id="subflow-input-category"></select><input style="display:none; margin-left: 10px; width:calc(100% - 250px)" type="text" id="subflow-input-custom-category"></div>'+
        '<div class="form-row" style="margin-bottom: 0px;"><label style="width: auto;" data-i18n="[append]editor:editor-tab.env"><i class="fa fa-th-list"></i> </label></div>'+
        '<div class="form-row node-input-env-container-row"><ol id="node-input-env-container"></ol></div>'+
        '<div class="form-row form-tips" id="subflow-dialog-user-count"></div>'+
        '</script>';

    function findAvailableSubflowIOPosition(subflow,isInput) {
        var pos = {x:50,y:30};
        if (!isInput) {
            pos.x += 110;
        }
        var ports = [].concat(subflow.out).concat(subflow.in);
        if (subflow.status) {
            ports.push(subflow.status);
        }
        ports.sort(function(A,B) {
            return A.x-B.x;
        });
        for (var i=0; i<ports.length; i++) {
            var port = ports[i];
            if (port.x == pos.x && port.y == pos.y) {
                pos.x += 55;
            }
        }
        return pos;
    }

    function addSubflowInput() {
        var subflow = RED.nodes.subflow(RED.workspaces.active());
        if (subflow.in.length === 1) {
            return;
        }
        var position = findAvailableSubflowIOPosition(subflow,true);
        var newInput = {
            type:"subflow",
            direction:"in",
            z:subflow.id,
            i:subflow.in.length,
            x:position.x,
            y:position.y,
            id:RED.nodes.id()
        };
        var oldInCount = subflow.in.length;
        subflow.in.push(newInput);
        subflow.dirty = true;
        var wasDirty = RED.nodes.dirty();
        var wasChanged = subflow.changed;
        subflow.changed = true;
        var result = refresh(true);
        var historyEvent = {
            t:'edit',
            node:subflow,
            dirty:wasDirty,
            changed:wasChanged,
            subflow: {
                inputCount: oldInCount,
                instances: result.instances
            }
        };
        RED.history.push(historyEvent);
        RED.view.select();
        RED.nodes.dirty(true);
        RED.view.redraw();
        $("#workspace-subflow-input-add").addClass("active");
        $("#workspace-subflow-input-remove").removeClass("active");
        RED.palette.refresh();
    }

    function removeSubflowInput() {
        var activeSubflow = RED.nodes.subflow(RED.workspaces.active());
        if (activeSubflow.in.length === 0) {
            return;
        }
        var removedInput = activeSubflow.in[0];
        var removedInputLinks = [];
        RED.nodes.eachLink(function(l) {
            if (l.source.type == "subflow" && l.source.z == activeSubflow.id && l.source.i == removedInput.i) {
                removedInputLinks.push(l);
            } else if (l.target.type == "subflow:"+activeSubflow.id) {
                removedInputLinks.push(l);
            }
        });
        removedInputLinks.forEach(function(l) { RED.nodes.removeLink(l)});
        activeSubflow.in = [];
        $("#workspace-subflow-input-add").removeClass("active");
        $("#workspace-subflow-input-remove").addClass("active");
        activeSubflow.changed = true;
        RED.palette.refresh();
        return {subflowInputs: [ removedInput ], links:removedInputLinks};
    }

    function addSubflowOutput(id) {
        var subflow = RED.nodes.subflow(RED.workspaces.active());
        var position = findAvailableSubflowIOPosition(subflow,false);

        var newOutput = {
            type:"subflow",
            direction:"out",
            z:subflow.id,
            i:subflow.out.length,
            x:position.x,
            y:position.y,
            id:RED.nodes.id()
        };
        var oldOutCount = subflow.out.length;
        subflow.out.push(newOutput);
        subflow.dirty = true;
        var wasDirty = RED.nodes.dirty();
        var wasChanged = subflow.changed;
        subflow.changed = true;

        var result = refresh(true);

        var historyEvent = {
            t:'edit',
            node:subflow,
            dirty:wasDirty,
            changed:wasChanged,
            subflow: {
                outputCount: oldOutCount,
                instances: result.instances
            }
        };
        RED.history.push(historyEvent);
        RED.view.select();
        RED.nodes.dirty(true);
        RED.view.redraw();
        $("#workspace-subflow-output .spinner-value").text(subflow.out.length);
        RED.palette.refresh();
    }

    function removeSubflowOutput(removedSubflowOutputs) {
        var activeSubflow = RED.nodes.subflow(RED.workspaces.active());
        if (activeSubflow.out.length === 0) {
            return;
        }
        if (typeof removedSubflowOutputs === "undefined") {
            removedSubflowOutputs = [activeSubflow.out[activeSubflow.out.length-1]];
        }
        var removedLinks = [];
        removedSubflowOutputs.sort(function(a,b) { return b.i-a.i});
        for (i=0;i<removedSubflowOutputs.length;i++) {
            var output = removedSubflowOutputs[i];
            activeSubflow.out.splice(output.i,1);
            var subflowRemovedLinks = [];
            var subflowMovedLinks = [];
            RED.nodes.eachLink(function(l) {
                if (l.target.type == "subflow" && l.target.z == activeSubflow.id && l.target.i == output.i) {
                    subflowRemovedLinks.push(l);
                }
                if (l.source.type == "subflow:"+activeSubflow.id) {
                    if (l.sourcePort == output.i) {
                        subflowRemovedLinks.push(l);
                    } else if (l.sourcePort > output.i) {
                        subflowMovedLinks.push(l);
                    }
                }
            });
            subflowRemovedLinks.forEach(function(l) { RED.nodes.removeLink(l)});
            subflowMovedLinks.forEach(function(l) { l.sourcePort--; });

            removedLinks = removedLinks.concat(subflowRemovedLinks);
            for (var j=output.i;j<activeSubflow.out.length;j++) {
                activeSubflow.out[j].i--;
                activeSubflow.out[j].dirty = true;
            }
        }
        activeSubflow.changed = true;
        RED.palette.refresh();
        return {subflowOutputs: removedSubflowOutputs, links: removedLinks}
    }

    function addSubflowStatus() {
        var subflow = RED.nodes.subflow(RED.workspaces.active());
        if (subflow.status) {
            return;
        }
        var position = findAvailableSubflowIOPosition(subflow,false);
        var statusNode = {
            type:"subflow",
            direction:"status",
            z:subflow.id,
            x:position.x,
            y:position.y,
            id:RED.nodes.id()
        };
        subflow.status = statusNode;
        subflow.dirty = true;
        var wasDirty = RED.nodes.dirty();
        var wasChanged = subflow.changed;
        subflow.changed = true;
        var result = refresh(true);
        var historyEvent = {
            t:'edit',
            node:subflow,
            dirty:wasDirty,
            changed:wasChanged,
            subflow: { status: true }
        };
        RED.history.push(historyEvent);
        RED.view.select();
        RED.nodes.dirty(true);
        RED.view.redraw();
        $("#workspace-subflow-status").prop("checked",!!subflow.status);
        $("#workspace-subflow-status").parent().parent().toggleClass("active",!!subflow.status);
    }

    function removeSubflowStatus() {
        var subflow = RED.nodes.subflow(RED.workspaces.active());
        if (!subflow.status) {
            return;
        }
        var subflowRemovedLinks = [];
        RED.nodes.eachLink(function(l) {
            if (l.target.type == "subflow" && l.target.z == subflow.id && l.target.direction == "status") {
                subflowRemovedLinks.push(l);
            }
        });
        subflowRemovedLinks.forEach(function(l) { RED.nodes.removeLink(l)});
        delete subflow.status;

        $("#workspace-subflow-status").prop("checked",!!subflow.status);
        $("#workspace-subflow-status").parent().parent().toggleClass("active",!!subflow.status);

        return { links: subflowRemovedLinks }
    }

    function refresh(markChange) {
        var activeSubflow = RED.nodes.subflow(RED.workspaces.active());
        refreshToolbar(activeSubflow);
        var subflowInstances = [];
        if (activeSubflow) {
            RED.nodes.filterNodes({type:"subflow:"+activeSubflow.id}).forEach(function(n) {
                subflowInstances.push({
                    id: n.id,
                    changed: n.changed
                });
                if (markChange) {
                    n.changed = true;
                }
                n.inputs = activeSubflow.in.length;
                n.outputs = activeSubflow.out.length;
                while (n.outputs < n.ports.length) {
                    n.ports.pop();
                }
                n.resize = true;
                n.dirty = true;
                RED.editor.updateNodeProperties(n);
            });
            RED.editor.validateNode(activeSubflow);
            return {
                instances: subflowInstances
            }
        }
    }

    function refreshToolbar(activeSubflow) {
        if (activeSubflow) {
            $("#workspace-subflow-input-add").toggleClass("active", activeSubflow.in.length !== 0);
            $("#workspace-subflow-input-remove").toggleClass("active",activeSubflow.in.length === 0);

            $("#workspace-subflow-output .spinner-value").text(activeSubflow.out.length);

            $("#workspace-subflow-status").prop("checked",!!activeSubflow.status);
            $("#workspace-subflow-status").parent().parent().toggleClass("active",!!activeSubflow.status);

        }
    }

    function showWorkspaceToolbar(activeSubflow) {
        var toolbar = $("#red-ui-workspace-toolbar");
        toolbar.empty();

        // Edit properties
        $('<a class="button" id="workspace-subflow-edit" href="#" data-i18n="[append]subflow.editSubflowProperties"><i class="fa fa-pencil"></i> </a>').appendTo(toolbar);

        // Inputs
        $('<span style="margin-left: 5px;" data-i18n="subflow.input"></span> '+
            '<div style="display: inline-block;" class="button-group">'+
            '<a id="workspace-subflow-input-remove" class="button active" href="#">0</a>'+
            '<a id="workspace-subflow-input-add" class="button" href="#">1</a>'+
            '</div>').appendTo(toolbar);

        // Outputs
        $('<span style="margin-left: 5px;" data-i18n="subflow.output"></span> <div id="workspace-subflow-output" style="display: inline-block;" class="button-group spinner-group">'+
            '<a id="workspace-subflow-output-remove" class="button" href="#"><i class="fa fa-minus"></i></a>'+
            '<div class="spinner-value">3</div>'+
            '<a id="workspace-subflow-output-add" class="button" href="#"><i class="fa fa-plus"></i></a>'+
            '</div>').appendTo(toolbar);

        // Status
        $('<span class="button-group"><span class="button" style="padding:0"><label for="workspace-subflow-status"><input id="workspace-subflow-status" type="checkbox"> <span data-i18n="subflow.status"></span></label></span></span>').appendTo(toolbar);

        // $('<a class="button disabled" id="workspace-subflow-add-input" href="#" data-i18n="[append]subflow.input"><i class="fa fa-plus"></i> </a>').appendTo(toolbar);
        // $('<a class="button" id="workspace-subflow-add-output" href="#" data-i18n="[append]subflow.output"><i class="fa fa-plus"></i> </a>').appendTo(toolbar);

        // Delete
        $('<a class="button" id="workspace-subflow-delete" href="#" data-i18n="[append]subflow.deleteSubflow"><i class="fa fa-trash"></i> </a>').appendTo(toolbar);

        toolbar.i18n();


        $("#workspace-subflow-output-remove").on("click", function(event) {
            event.preventDefault();
            var wasDirty = RED.nodes.dirty();
            var wasChanged = activeSubflow.changed;
            var result = removeSubflowOutput();
            if (result) {
                var inst = refresh(true);
                RED.history.push({
                    t:'delete',
                    links:result.links,
                    subflowOutputs: result.subflowOutputs,
                    changed: wasChanged,
                    dirty:wasDirty,
                    subflow: {
                        instances: inst.instances
                    }
                });

                RED.view.select();
                RED.nodes.dirty(true);
                RED.view.redraw(true);
            }
        });

        $("#workspace-subflow-output-add").on("click", function(event) {
            event.preventDefault();
            addSubflowOutput();
        });

        $("#workspace-subflow-input-add").on("click", function(event) {
            event.preventDefault();
            addSubflowInput();
        });

        $("#workspace-subflow-input-remove").on("click", function(event) {
            event.preventDefault();
            var wasDirty = RED.nodes.dirty();
            var wasChanged = activeSubflow.changed;
            activeSubflow.changed = true;
            var result = removeSubflowInput();
            if (result) {
                var inst = refresh(true);
                RED.history.push({
                    t:'delete',
                    links:result.links,
                    changed: wasChanged,
                    subflowInputs: result.subflowInputs,
                    dirty:wasDirty,
                    subflow: {
                        instances: inst.instances
                    }
                });
                RED.view.select();
                RED.nodes.dirty(true);
                RED.view.redraw(true);
            }
        });

        $("#workspace-subflow-status").on("change", function(evt) {
            if (this.checked) {
                addSubflowStatus();
            } else {
                var currentStatus = activeSubflow.status;
                var wasChanged = activeSubflow.changed;
                var result = removeSubflowStatus();
                if (result) {
                    activeSubflow.changed = true;
                    var wasDirty = RED.nodes.dirty();
                    RED.history.push({
                        t:'delete',
                        links:result.links,
                        changed: wasChanged,
                        dirty:wasDirty,
                        subflow: {
                            id: activeSubflow.id,
                            status: currentStatus
                        }
                    });
                    RED.view.select();
                    RED.nodes.dirty(true);
                    RED.view.redraw();
                }
            }
        })

        $("#workspace-subflow-edit").on("click", function(event) {
            RED.editor.editSubflow(RED.nodes.subflow(RED.workspaces.active()));
            event.preventDefault();
        });

        $("#workspace-subflow-delete").on("click", function(event) {
            event.preventDefault();
            var startDirty = RED.nodes.dirty();
            var historyEvent = removeSubflow(RED.workspaces.active());
            historyEvent.t = 'delete';
            historyEvent.dirty = startDirty;

            RED.history.push(historyEvent);

        });

        refreshToolbar(activeSubflow);

        $("#red-ui-workspace-chart").css({"margin-top": "40px"});
        $("#red-ui-workspace-toolbar").show();
    }

    function hideWorkspaceToolbar() {
        $("#red-ui-workspace-toolbar").hide().empty();
        $("#red-ui-workspace-chart").css({"margin-top": "0"});
    }

    function removeSubflow(id) {
        var removedNodes = [];
        var removedLinks = [];

        var activeSubflow = RED.nodes.subflow(id);

        RED.nodes.eachNode(function(n) {
            if (n.type == "subflow:"+activeSubflow.id) {
                removedNodes.push(n);
            }
            if (n.z == activeSubflow.id) {
                removedNodes.push(n);
            }
        });
        RED.nodes.eachConfig(function(n) {
            if (n.z == activeSubflow.id) {
                removedNodes.push(n);
            }
        });

        var removedConfigNodes = [];
        for (var i=0;i<removedNodes.length;i++) {
            var removedEntities = RED.nodes.remove(removedNodes[i].id);
            removedLinks = removedLinks.concat(removedEntities.links);
            removedConfigNodes = removedConfigNodes.concat(removedEntities.nodes);
        }
        // TODO: this whole delete logic should be in RED.nodes.removeSubflow..
        removedNodes = removedNodes.concat(removedConfigNodes);

        RED.nodes.removeSubflow(activeSubflow);
        RED.workspaces.remove(activeSubflow);
        RED.nodes.dirty(true);
        RED.view.redraw();

        return {
            nodes:removedNodes,
            links:removedLinks,
            subflows: [activeSubflow]
        }
    }

    function init() {
        RED.events.on("workspace:change",function(event) {
            var activeSubflow = RED.nodes.subflow(event.workspace);
            if (activeSubflow) {
                showWorkspaceToolbar(activeSubflow);
            } else {
                hideWorkspaceToolbar();
            }
        });
        RED.events.on("view:selection-changed",function(selection) {
            if (!selection.nodes) {
                RED.menu.setDisabled("menu-item-subflow-convert",true);
            } else {
                RED.menu.setDisabled("menu-item-subflow-convert",false);
            }
        });

        RED.actions.add("core:create-subflow",createSubflow);
        RED.actions.add("core:convert-to-subflow",convertToSubflow);

        $(_subflowEditTemplate).appendTo("#red-ui-editor-node-configs");
        $(_subflowTemplateEditTemplate).appendTo("#red-ui-editor-node-configs");

    }

    function createSubflow() {
        var lastIndex = 0;
        RED.nodes.eachSubflow(function(sf) {
           var m = (new RegExp("^Subflow (\\d+)$")).exec(sf.name);
           if (m) {
               lastIndex = Math.max(lastIndex,m[1]);
           }
        });

        var name = "Subflow "+(lastIndex+1);

        var subflowId = RED.nodes.id();
        var subflow = {
            type:"subflow",
            id:subflowId,
            name:name,
            info:"",
            in: [],
            out: []
        };
        RED.nodes.addSubflow(subflow);
        RED.history.push({
            t:'createSubflow',
            subflow: {
                subflow:subflow
            },
            dirty:RED.nodes.dirty()
        });
        RED.workspaces.show(subflowId);
        RED.nodes.dirty(true);
    }

    function snapToGrid(x) {
        if (RED.settings.get("editor").view['view-snap-grid']) {
            x = Math.round(x / RED.view.gridSize()) * RED.view.gridSize();
        }
        return x;
    }

    function convertToSubflow() {
        var selection = RED.view.selection();
        if (!selection.nodes) {
            RED.notify(RED._("subflow.errors.noNodesSelected"),"error");
            return;
        }
        var i,n;
        var nodes = {};
        var new_links = [];
        var removedLinks = [];

        var candidateInputs = [];
        var candidateOutputs = [];
        var candidateInputNodes = {};

        var boundingBox = [selection.nodes[0].x,
            selection.nodes[0].y,
            selection.nodes[0].x,
            selection.nodes[0].y];

        for (i=0;i<selection.nodes.length;i++) {
            n = selection.nodes[i];
            nodes[n.id] = {n:n,outputs:{}};
            boundingBox = [
                Math.min(boundingBox[0],n.x),
                Math.min(boundingBox[1],n.y),
                Math.max(boundingBox[2],n.x),
                Math.max(boundingBox[3],n.y)
            ]
        }
        var offsetX = snapToGrid(boundingBox[0] - 200);
        var offsetY = snapToGrid(boundingBox[1] - 80);


        var center = [
            snapToGrid((boundingBox[2]+boundingBox[0]) / 2),
            snapToGrid((boundingBox[3]+boundingBox[1]) / 2)
        ];

        RED.nodes.eachLink(function(link) {
            if (nodes[link.source.id] && nodes[link.target.id]) {
                // A link wholely within the selection
            }

            if (nodes[link.source.id] && !nodes[link.target.id]) {
                // An outbound link from the selection
                candidateOutputs.push(link);
                removedLinks.push(link);
            }
            if (!nodes[link.source.id] && nodes[link.target.id]) {
                // An inbound link
                candidateInputs.push(link);
                candidateInputNodes[link.target.id] = link.target;
                removedLinks.push(link);
            }
        });

        var outputs = {};
        candidateOutputs = candidateOutputs.filter(function(v) {
             if (outputs[v.source.id+":"+v.sourcePort]) {
                 outputs[v.source.id+":"+v.sourcePort].targets.push(v.target);
                 return false;
             }
             v.targets = [];
             v.targets.push(v.target);
             outputs[v.source.id+":"+v.sourcePort] = v;
             return true;
        });
        candidateOutputs.sort(function(a,b) { return a.source.y-b.source.y});

        if (Object.keys(candidateInputNodes).length > 1) {
             RED.notify(RED._("subflow.errors.multipleInputsToSelection"),"error");
             return;
        }

        var lastIndex = 0;
        RED.nodes.eachSubflow(function(sf) {
           var m = (new RegExp("^Subflow (\\d+)$")).exec(sf.name);
           if (m) {
               lastIndex = Math.max(lastIndex,m[1]);
           }
        });

        var name = "Subflow "+(lastIndex+1);

        var subflowId = RED.nodes.id();
        var subflow = {
            type:"subflow",
            id:subflowId,
            name:name,
            info:"",
            in: Object.keys(candidateInputNodes).map(function(v,i) { var index = i; return {
                type:"subflow",
                direction:"in",
                x:snapToGrid(candidateInputNodes[v].x-(candidateInputNodes[v].w/2)-80 - offsetX),
                y:snapToGrid(candidateInputNodes[v].y - offsetY),
                z:subflowId,
                i:index,
                id:RED.nodes.id(),
                wires:[{id:candidateInputNodes[v].id}]
            }}),
            out: candidateOutputs.map(function(v,i) { var index = i; return {
                type:"subflow",
                direction:"out",
                x:snapToGrid(v.source.x+(v.source.w/2)+80 - offsetX),
                y:snapToGrid(v.source.y - offsetY),
                z:subflowId,
                i:index,
                id:RED.nodes.id(),
                wires:[{id:v.source.id,port:v.sourcePort}]
            }})
        };

        RED.nodes.addSubflow(subflow);

        var subflowInstance = {
            id:RED.nodes.id(),
            type:"subflow:"+subflow.id,
            x: center[0],
            y: center[1],
            z: RED.workspaces.active(),
            inputs: subflow.in.length,
            outputs: subflow.out.length,
            h: Math.max(30/*node_height*/,(subflow.out.length||0) * 15),
            changed:true
        }
        subflowInstance._def = RED.nodes.getType(subflowInstance.type);
        RED.editor.validateNode(subflowInstance);
        RED.nodes.add(subflowInstance);

        candidateInputs.forEach(function(l) {
            var link = {source:l.source, sourcePort:l.sourcePort, target: subflowInstance};
            new_links.push(link);
            RED.nodes.addLink(link);
        });

        candidateOutputs.forEach(function(output,i) {
            output.targets.forEach(function(target) {
                var link = {source:subflowInstance, sourcePort:i, target: target};
                new_links.push(link);
                RED.nodes.addLink(link);
            });
        });

        subflow.in.forEach(function(input) {
            input.wires.forEach(function(wire) {
                var link = {source: input, sourcePort: 0, target: RED.nodes.node(wire.id) }
                new_links.push(link);
                RED.nodes.addLink(link);
            });
        });
        subflow.out.forEach(function(output,i) {
            output.wires.forEach(function(wire) {
                var link = {source: RED.nodes.node(wire.id), sourcePort: wire.port , target: output }
                new_links.push(link);
                RED.nodes.addLink(link);
            });
        });

        for (i=0;i<removedLinks.length;i++) {
            RED.nodes.removeLink(removedLinks[i]);
        }

        for (i=0;i<selection.nodes.length;i++) {
            n = selection.nodes[i];
            if (/^link /.test(n.type)) {
                n.links = n.links.filter(function(id) {
                    var isLocalLink = nodes.hasOwnProperty(id);
                    if (!isLocalLink) {
                        var otherNode = RED.nodes.node(id);
                        if (otherNode && otherNode.links) {
                            var i = otherNode.links.indexOf(n.id);
                            if (i > -1) {
                                otherNode.links.splice(i,1);
                            }
                        }
                    }
                    return isLocalLink;
                });
            }
            n.x -= offsetX;
            n.y -= offsetY;
            n.z = subflow.id;
        }

        RED.history.push({
            t:'createSubflow',
            nodes:[subflowInstance.id],
            links:new_links,
            subflow: {
                subflow: subflow,
                offsetX: offsetX,
                offsetY: offsetY
            },

            activeWorkspace: RED.workspaces.active(),
            removedLinks: removedLinks,

            dirty:RED.nodes.dirty()
        });
        RED.view.select(null);
        RED.editor.validateNode(subflow);
        RED.nodes.dirty(true);
        RED.view.redraw(true);
    }

    return {
        init: init,
        createSubflow: createSubflow,
        convertToSubflow: convertToSubflow,
        removeSubflow: removeSubflow,
        refresh: refresh,
        removeInput: removeSubflowInput,
        removeOutput: removeSubflowOutput,
        removeStatus: removeSubflowStatus
    }
})();