"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.WorkflowDiffEngine = void 0;
const uuid_1 = require("uuid");
const logger_1 = require("../utils/logger");
const node_sanitizer_1 = require("./node-sanitizer");
const node_type_utils_1 = require("../utils/node-type-utils");
const logger = new logger_1.Logger({ prefix: '[WorkflowDiffEngine]' });
class WorkflowDiffEngine {
constructor() {
this.renameMap = new Map();
this.warnings = [];
}
async applyDiff(workflow, request) {
try {
this.renameMap.clear();
this.warnings = [];
const workflowCopy = JSON.parse(JSON.stringify(workflow));
const nodeOperationTypes = ['addNode', 'removeNode', 'updateNode', 'moveNode', 'enableNode', 'disableNode'];
const nodeOperations = [];
const otherOperations = [];
request.operations.forEach((operation, index) => {
if (nodeOperationTypes.includes(operation.type)) {
nodeOperations.push({ operation, index });
}
else {
otherOperations.push({ operation, index });
}
});
const allOperations = [...nodeOperations, ...otherOperations];
const errors = [];
const appliedIndices = [];
const failedIndices = [];
if (request.continueOnError) {
for (const { operation, index } of allOperations) {
const error = this.validateOperation(workflowCopy, operation);
if (error) {
errors.push({
operation: index,
message: error,
details: operation
});
failedIndices.push(index);
continue;
}
try {
this.applyOperation(workflowCopy, operation);
appliedIndices.push(index);
}
catch (error) {
const errorMsg = `Failed to apply operation: ${error instanceof Error ? error.message : 'Unknown error'}`;
errors.push({
operation: index,
message: errorMsg,
details: operation
});
failedIndices.push(index);
}
}
if (this.renameMap.size > 0 && appliedIndices.length > 0) {
this.updateConnectionReferences(workflowCopy);
logger.debug(`Auto-updated ${this.renameMap.size} node name references in connections (continueOnError mode)`);
}
if (request.validateOnly) {
return {
success: errors.length === 0,
message: errors.length === 0
? 'Validation successful. All operations are valid.'
: `Validation completed with ${errors.length} errors.`,
errors: errors.length > 0 ? errors : undefined,
warnings: this.warnings.length > 0 ? this.warnings : undefined,
applied: appliedIndices,
failed: failedIndices
};
}
const success = appliedIndices.length > 0;
return {
success,
workflow: workflowCopy,
operationsApplied: appliedIndices.length,
message: `Applied ${appliedIndices.length} operations, ${failedIndices.length} failed (continueOnError mode)`,
errors: errors.length > 0 ? errors : undefined,
warnings: this.warnings.length > 0 ? this.warnings : undefined,
applied: appliedIndices,
failed: failedIndices
};
}
else {
for (const { operation, index } of nodeOperations) {
const error = this.validateOperation(workflowCopy, operation);
if (error) {
return {
success: false,
errors: [{
operation: index,
message: error,
details: operation
}]
};
}
try {
this.applyOperation(workflowCopy, operation);
}
catch (error) {
return {
success: false,
errors: [{
operation: index,
message: `Failed to apply operation: ${error instanceof Error ? error.message : 'Unknown error'}`,
details: operation
}]
};
}
}
if (this.renameMap.size > 0) {
this.updateConnectionReferences(workflowCopy);
logger.debug(`Auto-updated ${this.renameMap.size} node name references in connections`);
}
for (const { operation, index } of otherOperations) {
const error = this.validateOperation(workflowCopy, operation);
if (error) {
return {
success: false,
errors: [{
operation: index,
message: error,
details: operation
}]
};
}
try {
this.applyOperation(workflowCopy, operation);
}
catch (error) {
return {
success: false,
errors: [{
operation: index,
message: `Failed to apply operation: ${error instanceof Error ? error.message : 'Unknown error'}`,
details: operation
}]
};
}
}
workflowCopy.nodes = workflowCopy.nodes.map((node) => (0, node_sanitizer_1.sanitizeNode)(node));
logger.debug('Applied full-workflow sanitization to all nodes');
if (request.validateOnly) {
return {
success: true,
message: 'Validation successful. Operations are valid but not applied.'
};
}
const operationsApplied = request.operations.length;
const shouldActivate = workflowCopy._shouldActivate === true;
const shouldDeactivate = workflowCopy._shouldDeactivate === true;
delete workflowCopy._shouldActivate;
delete workflowCopy._shouldDeactivate;
return {
success: true,
workflow: workflowCopy,
operationsApplied,
message: `Successfully applied ${operationsApplied} operations (${nodeOperations.length} node ops, ${otherOperations.length} other ops)`,
warnings: this.warnings.length > 0 ? this.warnings : undefined,
shouldActivate: shouldActivate || undefined,
shouldDeactivate: shouldDeactivate || undefined
};
}
}
catch (error) {
logger.error('Failed to apply diff', error);
return {
success: false,
errors: [{
operation: -1,
message: `Diff engine error: ${error instanceof Error ? error.message : 'Unknown error'}`
}]
};
}
}
validateOperation(workflow, operation) {
switch (operation.type) {
case 'addNode':
return this.validateAddNode(workflow, operation);
case 'removeNode':
return this.validateRemoveNode(workflow, operation);
case 'updateNode':
return this.validateUpdateNode(workflow, operation);
case 'moveNode':
return this.validateMoveNode(workflow, operation);
case 'enableNode':
case 'disableNode':
return this.validateToggleNode(workflow, operation);
case 'addConnection':
return this.validateAddConnection(workflow, operation);
case 'removeConnection':
return this.validateRemoveConnection(workflow, operation);
case 'rewireConnection':
return this.validateRewireConnection(workflow, operation);
case 'updateSettings':
case 'updateName':
case 'addTag':
case 'removeTag':
return null;
case 'activateWorkflow':
return this.validateActivateWorkflow(workflow, operation);
case 'deactivateWorkflow':
return this.validateDeactivateWorkflow(workflow, operation);
case 'cleanStaleConnections':
return this.validateCleanStaleConnections(workflow, operation);
case 'replaceConnections':
return this.validateReplaceConnections(workflow, operation);
default:
return `Unknown operation type: ${operation.type}`;
}
}
applyOperation(workflow, operation) {
switch (operation.type) {
case 'addNode':
this.applyAddNode(workflow, operation);
break;
case 'removeNode':
this.applyRemoveNode(workflow, operation);
break;
case 'updateNode':
this.applyUpdateNode(workflow, operation);
break;
case 'moveNode':
this.applyMoveNode(workflow, operation);
break;
case 'enableNode':
this.applyEnableNode(workflow, operation);
break;
case 'disableNode':
this.applyDisableNode(workflow, operation);
break;
case 'addConnection':
this.applyAddConnection(workflow, operation);
break;
case 'removeConnection':
this.applyRemoveConnection(workflow, operation);
break;
case 'rewireConnection':
this.applyRewireConnection(workflow, operation);
break;
case 'updateSettings':
this.applyUpdateSettings(workflow, operation);
break;
case 'updateName':
this.applyUpdateName(workflow, operation);
break;
case 'addTag':
this.applyAddTag(workflow, operation);
break;
case 'removeTag':
this.applyRemoveTag(workflow, operation);
break;
case 'activateWorkflow':
this.applyActivateWorkflow(workflow, operation);
break;
case 'deactivateWorkflow':
this.applyDeactivateWorkflow(workflow, operation);
break;
case 'cleanStaleConnections':
this.applyCleanStaleConnections(workflow, operation);
break;
case 'replaceConnections':
this.applyReplaceConnections(workflow, operation);
break;
}
}
validateAddNode(workflow, operation) {
const { node } = operation;
const normalizedNewName = this.normalizeNodeName(node.name);
const duplicate = workflow.nodes.find(n => this.normalizeNodeName(n.name) === normalizedNewName);
if (duplicate) {
return `Node with name "${node.name}" already exists (normalized name matches existing node "${duplicate.name}")`;
}
if (!node.type.includes('.')) {
return `Invalid node type "${node.type}". Must include package prefix (e.g., "n8n-nodes-base.webhook")`;
}
if (node.type.startsWith('nodes-base.')) {
return `Invalid node type "${node.type}". Use "n8n-nodes-base.${node.type.substring(11)}" instead`;
}
return null;
}
validateRemoveNode(workflow, operation) {
const node = this.findNode(workflow, operation.nodeId, operation.nodeName);
if (!node) {
return this.formatNodeNotFoundError(workflow, operation.nodeId || operation.nodeName || '', 'removeNode');
}
const hasConnections = Object.values(workflow.connections).some(conn => {
return Object.values(conn).some(outputs => outputs.some(connections => connections.some(c => c.node === node.name)));
});
if (hasConnections || workflow.connections[node.name]) {
logger.warn(`Removing node "${node.name}" will break existing connections`);
}
return null;
}
validateUpdateNode(workflow, operation) {
const operationAny = operation;
if (operationAny.changes && !operation.updates) {
return `Invalid parameter 'changes'. The updateNode operation requires 'updates' (not 'changes'). Example: {type: "updateNode", nodeId: "abc", updates: {name: "New Name", "parameters.url": "https://example.com"}}`;
}
if (!operation.updates) {
return `Missing required parameter 'updates'. The updateNode operation requires an 'updates' object containing properties to modify. Example: {type: "updateNode", nodeId: "abc", updates: {name: "New Name"}}`;
}
const node = this.findNode(workflow, operation.nodeId, operation.nodeName);
if (!node) {
return this.formatNodeNotFoundError(workflow, operation.nodeId || operation.nodeName || '', 'updateNode');
}
if (operation.updates.name && operation.updates.name !== node.name) {
const normalizedNewName = this.normalizeNodeName(operation.updates.name);
const normalizedCurrentName = this.normalizeNodeName(node.name);
if (normalizedNewName !== normalizedCurrentName) {
const collision = workflow.nodes.find(n => n.id !== node.id && this.normalizeNodeName(n.name) === normalizedNewName);
if (collision) {
return `Cannot rename node "${node.name}" to "${operation.updates.name}": A node with that name already exists (id: ${collision.id.substring(0, 8)}...). Please choose a different name.`;
}
}
}
return null;
}
validateMoveNode(workflow, operation) {
const node = this.findNode(workflow, operation.nodeId, operation.nodeName);
if (!node) {
return this.formatNodeNotFoundError(workflow, operation.nodeId || operation.nodeName || '', 'moveNode');
}
return null;
}
validateToggleNode(workflow, operation) {
const node = this.findNode(workflow, operation.nodeId, operation.nodeName);
if (!node) {
const operationType = operation.type === 'enableNode' ? 'enableNode' : 'disableNode';
return this.formatNodeNotFoundError(workflow, operation.nodeId || operation.nodeName || '', operationType);
}
return null;
}
validateAddConnection(workflow, operation) {
const operationAny = operation;
if (operationAny.sourceNodeId || operationAny.targetNodeId) {
const wrongParams = [];
if (operationAny.sourceNodeId)
wrongParams.push('sourceNodeId');
if (operationAny.targetNodeId)
wrongParams.push('targetNodeId');
return `Invalid parameter(s): ${wrongParams.join(', ')}. Use 'source' and 'target' instead. Example: {type: "addConnection", source: "Node Name", target: "Target Name"}`;
}
if (!operation.source) {
return `Missing required parameter 'source'. The addConnection operation requires both 'source' and 'target' parameters. Check that you're using 'source' (not 'sourceNodeId').`;
}
if (!operation.target) {
return `Missing required parameter 'target'. The addConnection operation requires both 'source' and 'target' parameters. Check that you're using 'target' (not 'targetNodeId').`;
}
const sourceNode = this.findNode(workflow, operation.source, operation.source);
const targetNode = this.findNode(workflow, operation.target, operation.target);
if (!sourceNode) {
const availableNodes = workflow.nodes
.map(n => `"${n.name}" (id: ${n.id.substring(0, 8)}...)`)
.join(', ');
return `Source node not found: "${operation.source}". Available nodes: ${availableNodes}. Tip: Use node ID for names with special characters (apostrophes, quotes).`;
}
if (!targetNode) {
const availableNodes = workflow.nodes
.map(n => `"${n.name}" (id: ${n.id.substring(0, 8)}...)`)
.join(', ');
return `Target node not found: "${operation.target}". Available nodes: ${availableNodes}. Tip: Use node ID for names with special characters (apostrophes, quotes).`;
}
const sourceOutput = operation.sourceOutput || 'main';
const existing = workflow.connections[sourceNode.name]?.[sourceOutput];
if (existing) {
const hasConnection = existing.some(connections => connections.some(c => c.node === targetNode.name));
if (hasConnection) {
return `Connection already exists from "${sourceNode.name}" to "${targetNode.name}"`;
}
}
return null;
}
validateRemoveConnection(workflow, operation) {
if (operation.ignoreErrors) {
return null;
}
const sourceNode = this.findNode(workflow, operation.source, operation.source);
const targetNode = this.findNode(workflow, operation.target, operation.target);
if (!sourceNode) {
const availableNodes = workflow.nodes
.map(n => `"${n.name}" (id: ${n.id.substring(0, 8)}...)`)
.join(', ');
return `Source node not found: "${operation.source}". Available nodes: ${availableNodes}. Tip: Use node ID for names with special characters.`;
}
if (!targetNode) {
const availableNodes = workflow.nodes
.map(n => `"${n.name}" (id: ${n.id.substring(0, 8)}...)`)
.join(', ');
return `Target node not found: "${operation.target}". Available nodes: ${availableNodes}. Tip: Use node ID for names with special characters.`;
}
const sourceOutput = operation.sourceOutput || 'main';
const connections = workflow.connections[sourceNode.name]?.[sourceOutput];
if (!connections) {
return `No connections found from "${sourceNode.name}"`;
}
const hasConnection = connections.some(conns => conns.some(c => c.node === targetNode.name));
if (!hasConnection) {
return `No connection exists from "${sourceNode.name}" to "${targetNode.name}"`;
}
return null;
}
validateRewireConnection(workflow, operation) {
const sourceNode = this.findNode(workflow, operation.source, operation.source);
if (!sourceNode) {
const availableNodes = workflow.nodes
.map(n => `"${n.name}" (id: ${n.id.substring(0, 8)}...)`)
.join(', ');
return `Source node not found: "${operation.source}". Available nodes: ${availableNodes}. Tip: Use node ID for names with special characters.`;
}
const fromNode = this.findNode(workflow, operation.from, operation.from);
if (!fromNode) {
const availableNodes = workflow.nodes
.map(n => `"${n.name}" (id: ${n.id.substring(0, 8)}...)`)
.join(', ');
return `"From" node not found: "${operation.from}". Available nodes: ${availableNodes}. Tip: Use node ID for names with special characters.`;
}
const toNode = this.findNode(workflow, operation.to, operation.to);
if (!toNode) {
const availableNodes = workflow.nodes
.map(n => `"${n.name}" (id: ${n.id.substring(0, 8)}...)`)
.join(', ');
return `"To" node not found: "${operation.to}". Available nodes: ${availableNodes}. Tip: Use node ID for names with special characters.`;
}
const { sourceOutput, sourceIndex } = this.resolveSmartParameters(workflow, operation);
const connections = workflow.connections[sourceNode.name]?.[sourceOutput];
if (!connections) {
return `No connections found from "${sourceNode.name}" on output "${sourceOutput}"`;
}
if (!connections[sourceIndex]) {
return `No connections found from "${sourceNode.name}" on output "${sourceOutput}" at index ${sourceIndex}`;
}
const hasConnection = connections[sourceIndex].some(c => c.node === fromNode.name);
if (!hasConnection) {
return `No connection exists from "${sourceNode.name}" to "${fromNode.name}" on output "${sourceOutput}" at index ${sourceIndex}"`;
}
return null;
}
applyAddNode(workflow, operation) {
const newNode = {
id: operation.node.id || (0, uuid_1.v4)(),
name: operation.node.name,
type: operation.node.type,
typeVersion: operation.node.typeVersion || 1,
position: operation.node.position,
parameters: operation.node.parameters || {},
credentials: operation.node.credentials,
disabled: operation.node.disabled,
notes: operation.node.notes,
notesInFlow: operation.node.notesInFlow,
continueOnFail: operation.node.continueOnFail,
onError: operation.node.onError,
retryOnFail: operation.node.retryOnFail,
maxTries: operation.node.maxTries,
waitBetweenTries: operation.node.waitBetweenTries,
alwaysOutputData: operation.node.alwaysOutputData,
executeOnce: operation.node.executeOnce
};
const sanitizedNode = (0, node_sanitizer_1.sanitizeNode)(newNode);
workflow.nodes.push(sanitizedNode);
}
applyRemoveNode(workflow, operation) {
const node = this.findNode(workflow, operation.nodeId, operation.nodeName);
if (!node)
return;
const index = workflow.nodes.findIndex(n => n.id === node.id);
if (index !== -1) {
workflow.nodes.splice(index, 1);
}
delete workflow.connections[node.name];
Object.keys(workflow.connections).forEach(sourceName => {
const sourceConnections = workflow.connections[sourceName];
Object.keys(sourceConnections).forEach(outputName => {
sourceConnections[outputName] = sourceConnections[outputName].map(connections => connections.filter(conn => conn.node !== node.name)).filter(connections => connections.length > 0);
if (sourceConnections[outputName].length === 0) {
delete sourceConnections[outputName];
}
});
if (Object.keys(sourceConnections).length === 0) {
delete workflow.connections[sourceName];
}
});
}
applyUpdateNode(workflow, operation) {
const node = this.findNode(workflow, operation.nodeId, operation.nodeName);
if (!node)
return;
if (operation.updates.name && operation.updates.name !== node.name) {
const oldName = node.name;
const newName = operation.updates.name;
this.renameMap.set(oldName, newName);
logger.debug(`Tracking rename: "${oldName}" → "${newName}"`);
}
Object.entries(operation.updates).forEach(([path, value]) => {
this.setNestedProperty(node, path, value);
});
const sanitized = (0, node_sanitizer_1.sanitizeNode)(node);
Object.assign(node, sanitized);
}
applyMoveNode(workflow, operation) {
const node = this.findNode(workflow, operation.nodeId, operation.nodeName);
if (!node)
return;
node.position = operation.position;
}
applyEnableNode(workflow, operation) {
const node = this.findNode(workflow, operation.nodeId, operation.nodeName);
if (!node)
return;
node.disabled = false;
}
applyDisableNode(workflow, operation) {
const node = this.findNode(workflow, operation.nodeId, operation.nodeName);
if (!node)
return;
node.disabled = true;
}
resolveSmartParameters(workflow, operation) {
const sourceNode = this.findNode(workflow, operation.source, operation.source);
let sourceOutput = operation.sourceOutput ?? 'main';
let sourceIndex = operation.sourceIndex ?? 0;
if (operation.branch !== undefined && operation.sourceIndex === undefined) {
if (sourceNode?.type === 'n8n-nodes-base.if') {
sourceIndex = operation.branch === 'true' ? 0 : 1;
}
}
if (operation.case !== undefined && operation.sourceIndex === undefined) {
sourceIndex = operation.case;
}
if (sourceNode && operation.sourceIndex !== undefined && operation.branch === undefined && operation.case === undefined) {
if (sourceNode.type === 'n8n-nodes-base.if') {
this.warnings.push({
operation: -1,
message: `Connection to If node "${operation.source}" uses sourceIndex=${operation.sourceIndex}. ` +
`Consider using branch="true" or branch="false" for better clarity. ` +
`If node outputs: main[0]=TRUE branch, main[1]=FALSE branch.`
});
}
else if (sourceNode.type === 'n8n-nodes-base.switch') {
this.warnings.push({
operation: -1,
message: `Connection to Switch node "${operation.source}" uses sourceIndex=${operation.sourceIndex}. ` +
`Consider using case=N for better clarity (case=0 for first output, case=1 for second, etc.).`
});
}
}
return { sourceOutput, sourceIndex };
}
applyAddConnection(workflow, operation) {
const sourceNode = this.findNode(workflow, operation.source, operation.source);
const targetNode = this.findNode(workflow, operation.target, operation.target);
if (!sourceNode || !targetNode)
return;
const { sourceOutput, sourceIndex } = this.resolveSmartParameters(workflow, operation);
const targetInput = operation.targetInput ?? sourceOutput;
const targetIndex = operation.targetIndex ?? 0;
if (!workflow.connections[sourceNode.name]) {
workflow.connections[sourceNode.name] = {};
}
if (!workflow.connections[sourceNode.name][sourceOutput]) {
workflow.connections[sourceNode.name][sourceOutput] = [];
}
const outputArray = workflow.connections[sourceNode.name][sourceOutput];
while (outputArray.length <= sourceIndex) {
outputArray.push([]);
}
if (!Array.isArray(outputArray[sourceIndex])) {
outputArray[sourceIndex] = [];
}
outputArray[sourceIndex].push({
node: targetNode.name,
type: targetInput,
index: targetIndex
});
}
applyRemoveConnection(workflow, operation) {
const sourceNode = this.findNode(workflow, operation.source, operation.source);
const targetNode = this.findNode(workflow, operation.target, operation.target);
if (!sourceNode || !targetNode) {
if (operation.ignoreErrors) {
return;
}
return;
}
const sourceOutput = operation.sourceOutput || 'main';
const connections = workflow.connections[sourceNode.name]?.[sourceOutput];
if (!connections)
return;
workflow.connections[sourceNode.name][sourceOutput] = connections.map(conns => conns.filter(conn => conn.node !== targetNode.name));
const outputConnections = workflow.connections[sourceNode.name][sourceOutput];
while (outputConnections.length > 0 && outputConnections[outputConnections.length - 1].length === 0) {
outputConnections.pop();
}
if (outputConnections.length === 0) {
delete workflow.connections[sourceNode.name][sourceOutput];
}
if (Object.keys(workflow.connections[sourceNode.name]).length === 0) {
delete workflow.connections[sourceNode.name];
}
}
applyRewireConnection(workflow, operation) {
const { sourceOutput, sourceIndex } = this.resolveSmartParameters(workflow, operation);
this.applyRemoveConnection(workflow, {
type: 'removeConnection',
source: operation.source,
target: operation.from,
sourceOutput: sourceOutput,
targetInput: operation.targetInput
});
this.applyAddConnection(workflow, {
type: 'addConnection',
source: operation.source,
target: operation.to,
sourceOutput: sourceOutput,
targetInput: operation.targetInput,
sourceIndex: sourceIndex,
targetIndex: 0
});
}
applyUpdateSettings(workflow, operation) {
if (operation.settings && Object.keys(operation.settings).length > 0) {
if (!workflow.settings) {
workflow.settings = {};
}
Object.assign(workflow.settings, operation.settings);
}
}
applyUpdateName(workflow, operation) {
workflow.name = operation.name;
}
applyAddTag(workflow, operation) {
if (!workflow.tags) {
workflow.tags = [];
}
if (!workflow.tags.includes(operation.tag)) {
workflow.tags.push(operation.tag);
}
}
applyRemoveTag(workflow, operation) {
if (!workflow.tags)
return;
const index = workflow.tags.indexOf(operation.tag);
if (index !== -1) {
workflow.tags.splice(index, 1);
}
}
validateActivateWorkflow(workflow, operation) {
const activatableTriggers = workflow.nodes.filter(node => !node.disabled && (0, node_type_utils_1.isActivatableTrigger)(node.type));
if (activatableTriggers.length === 0) {
return 'Cannot activate workflow: No activatable trigger nodes found. Workflows must have at least one enabled trigger node (webhook, schedule, executeWorkflowTrigger, etc.).';
}
return null;
}
validateDeactivateWorkflow(workflow, operation) {
return null;
}
applyActivateWorkflow(workflow, operation) {
workflow._shouldActivate = true;
}
applyDeactivateWorkflow(workflow, operation) {
workflow._shouldDeactivate = true;
}
validateCleanStaleConnections(workflow, operation) {
return null;
}
validateReplaceConnections(workflow, operation) {
const nodeNames = new Set(workflow.nodes.map(n => n.name));
for (const [sourceName, outputs] of Object.entries(operation.connections)) {
if (!nodeNames.has(sourceName)) {
return `Source node not found in connections: ${sourceName}`;
}
for (const outputName of Object.keys(outputs)) {
const connections = outputs[outputName];
for (const conns of connections) {
for (const conn of conns) {
if (!nodeNames.has(conn.node)) {
return `Target node not found in connections: ${conn.node}`;
}
}
}
}
}
return null;
}
applyCleanStaleConnections(workflow, operation) {
const nodeNames = new Set(workflow.nodes.map(n => n.name));
const staleConnections = [];
if (operation.dryRun) {
for (const [sourceName, outputs] of Object.entries(workflow.connections)) {
if (!nodeNames.has(sourceName)) {
for (const [outputName, connections] of Object.entries(outputs)) {
for (const conns of connections) {
for (const conn of conns) {
staleConnections.push({ from: sourceName, to: conn.node });
}
}
}
}
else {
for (const [outputName, connections] of Object.entries(outputs)) {
for (const conns of connections) {
for (const conn of conns) {
if (!nodeNames.has(conn.node)) {
staleConnections.push({ from: sourceName, to: conn.node });
}
}
}
}
}
}
logger.info(`[DryRun] Would remove ${staleConnections.length} stale connections:`, staleConnections);
return;
}
for (const [sourceName, outputs] of Object.entries(workflow.connections)) {
if (!nodeNames.has(sourceName)) {
for (const [outputName, connections] of Object.entries(outputs)) {
for (const conns of connections) {
for (const conn of conns) {
staleConnections.push({ from: sourceName, to: conn.node });
}
}
}
delete workflow.connections[sourceName];
continue;
}
for (const [outputName, connections] of Object.entries(outputs)) {
const filteredConnections = connections.map(conns => conns.filter(conn => {
if (!nodeNames.has(conn.node)) {
staleConnections.push({ from: sourceName, to: conn.node });
return false;
}
return true;
})).filter(conns => conns.length > 0);
if (filteredConnections.length === 0) {
delete outputs[outputName];
}
else {
outputs[outputName] = filteredConnections;
}
}
if (Object.keys(outputs).length === 0) {
delete workflow.connections[sourceName];
}
}
logger.info(`Removed ${staleConnections.length} stale connections`);
}
applyReplaceConnections(workflow, operation) {
workflow.connections = operation.connections;
}
updateConnectionReferences(workflow) {
if (this.renameMap.size === 0)
return;
logger.debug(`Updating connection references for ${this.renameMap.size} renamed nodes`);
const renames = new Map(this.renameMap);
const updatedConnections = {};
for (const [sourceName, outputs] of Object.entries(workflow.connections)) {
const newSourceName = renames.get(sourceName) || sourceName;
updatedConnections[newSourceName] = outputs;
}
for (const [sourceName, outputs] of Object.entries(updatedConnections)) {
for (const [outputType, connections] of Object.entries(outputs)) {
for (let outputIndex = 0; outputIndex < connections.length; outputIndex++) {
const connectionsAtIndex = connections[outputIndex];
for (let connIndex = 0; connIndex < connectionsAtIndex.length; connIndex++) {
const connection = connectionsAtIndex[connIndex];
if (renames.has(connection.node)) {
const newTargetName = renames.get(connection.node);
connection.node = newTargetName;
logger.debug(`Updated connection: ${sourceName}[${outputType}][${outputIndex}][${connIndex}].node: "${connection.node}" → "${newTargetName}"`);
}
}
}
}
}
workflow.connections = updatedConnections;
logger.info(`Auto-updated ${this.renameMap.size} node name references in connections`);
}
normalizeNodeName(name) {
return name
.trim()
.replace(/\\\\/g, '\\')
.replace(/\\'/g, "'")
.replace(/\\"/g, '"')
.replace(/\s+/g, ' ');
}
findNode(workflow, nodeId, nodeName) {
if (nodeId) {
const nodeById = workflow.nodes.find(n => n.id === nodeId);
if (nodeById)
return nodeById;
}
if (nodeName) {
const normalizedSearch = this.normalizeNodeName(nodeName);
const nodeByName = workflow.nodes.find(n => this.normalizeNodeName(n.name) === normalizedSearch);
if (nodeByName)
return nodeByName;
}
if (nodeId && !nodeName) {
const normalizedSearch = this.normalizeNodeName(nodeId);
const nodeByName = workflow.nodes.find(n => this.normalizeNodeName(n.name) === normalizedSearch);
if (nodeByName)
return nodeByName;
}
return null;
}
formatNodeNotFoundError(workflow, nodeIdentifier, operationType) {
const availableNodes = workflow.nodes
.map(n => `"${n.name}" (id: ${n.id.substring(0, 8)}...)`)
.join(', ');
return `Node not found for ${operationType}: "${nodeIdentifier}". Available nodes: ${availableNodes}. Tip: Use node ID for names with special characters (apostrophes, quotes).`;
}
setNestedProperty(obj, path, value) {
const keys = path.split('.');
let current = obj;
for (let i = 0; i < keys.length - 1; i++) {
const key = keys[i];
if (!(key in current) || typeof current[key] !== 'object') {
current[key] = {};
}
current = current[key];
}
current[keys[keys.length - 1]] = value;
}
}
exports.WorkflowDiffEngine = WorkflowDiffEngine;
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