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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 | import type { Edge, Node } from '@vue-flow/core'
import { computed, ref } from 'vue'
import { NODE_TYPES } from './useNodeHelpers'
import { useWorkflowStore } from '../../stores/workflowStore'
export interface NodeTemplate {
type: string
defaultData: Record<string, any>
label?: string
icon?: string
}
export function useNodeOperations() {
const workflowStore = useWorkflowStore()
const selectedNodeId = ref<string | null>(null)
const copiedNode = ref<Node | null>(null)
const nodeIdCounter = ref(Date.now())
const nodes = computed({
get: () => workflowStore.nodes,
set: (value) => { workflowStore.nodes = value }
})
/**
* Get node by ID
*/
const getNodeById = (id: string): Node | undefined => {
return workflowStore.nodes.find(n => n.id === id)
}
/**
* Get selected node
*/
const selectedNode = computed(() => {
return selectedNodeId.value ? getNodeById(selectedNodeId.value) : null
})
/**
* Select a node
*/
const selectNode = (nodeId: string | null) => {
selectedNodeId.value = nodeId
}
/**
* Generate unique node ID
*/
const generateNodeId = (): string => {
return `node-${nodeIdCounter.value++}-${Math.random().toString(36).substring(2, 9)}`
}
/**
* Create a new node - business logic for node creation
*/
const createNode = (
template: NodeTemplate,
position: { x: number; y: number }
): Node => {
const newNode: Node = {
id: generateNodeId(),
type: template.type,
position,
data: {
label: template.label || template.type,
...template.defaultData,
},
}
workflowStore.addNode(newNode)
return newNode
}
/**
* Add node at center of canvas
*/
const addNodeAtCenter = (template: NodeTemplate): Node => {
const position = {
x: 250 + Math.random() * 100,
y: 150 + Math.random() * 100,
}
return createNode(template, position)
}
/**
* Update node data
* @param markDirty - Whether to mark workflow as having unsaved changes (default: true)
*/
const updateNodeData = (nodeId: string, data: Partial<Node['data']>, markDirty = true) => {
workflowStore.updateNodeData(nodeId, data, markDirty)
}
/**
* Update node position
*/
const updateNodePosition = (nodeId: string, position: { x: number; y: number }) => {
const nodeIndex = workflowStore.nodes.findIndex(n => n.id === nodeId)
if (nodeIndex !== -1 && workflowStore.nodes[nodeIndex]) {
workflowStore.nodes[nodeIndex] = {
...workflowStore.nodes[nodeIndex],
position: { ...position },
id: workflowStore.nodes[nodeIndex].id // Ensure id is preserved
} as Node
workflowStore.markAsDirty()
}
}
/**
* Delete node and its connections
*/
const deleteNode = (nodeId: string) => {
workflowStore.removeNode(nodeId)
if (selectedNodeId.value === nodeId) {
selectedNodeId.value = null
}
}
/**
* Delete multiple nodes
*/
const deleteNodes = (nodeIds: string[]) => {
nodeIds.forEach(nodeId => workflowStore.removeNode(nodeId))
if (nodeIds.includes(selectedNodeId.value || '')) {
selectedNodeId.value = null
}
}
/**
* Duplicate a node
*/
const duplicateNode = (
nodeId: string,
offset = { x: 50, y: 50 }
): Node | null => {
const node = getNodeById(nodeId)
if (!node) return null
const newPosition = {
x: node.position.x + offset.x,
y: node.position.y + offset.y,
}
const template: NodeTemplate = {
type: node.type || 'default',
defaultData: { ...node.data },
label: node.data.label,
}
return createNode(template, newPosition)
}
/**
* Copy node to clipboard (internal)
*/
const copyNode = (nodeId: string) => {
const node = getNodeById(nodeId)
if (node) {
copiedNode.value = { ...node }
}
}
/**
* Cut node (copy and delete)
*/
const cutNode = (nodeId: string) => {
copyNode(nodeId)
deleteNode(nodeId)
}
/**
* Paste copied node
*/
const pasteNode = (position?: { x: number; y: number }): Node | null => {
if (!copiedNode.value) return null
const pastePosition = position || {
x: copiedNode.value.position.x + 50,
y: copiedNode.value.position.y + 50,
}
const template: NodeTemplate = {
type: copiedNode.value.type || 'default',
defaultData: { ...copiedNode.value.data },
label: copiedNode.value.data.label,
}
return createNode(template, pastePosition)
}
/**
* Get connected nodes
*/
const getConnectedNodes = (nodeId: string) => {
const edges = workflowStore.edges
const connectedIds = new Set<string>()
edges.forEach(edge => {
if (edge.source === nodeId) {
connectedIds.add(edge.target)
}
if (edge.target === nodeId) {
connectedIds.add(edge.source)
}
})
return Array.from(connectedIds).map(id => getNodeById(id)).filter(Boolean) as Node[]
}
/**
* Get incoming edges for a node
*/
const getIncomingEdges = (nodeId: string): Edge[] => {
return workflowStore.edges.filter(edge => edge.target === nodeId)
}
/**
* Get outgoing edges for a node
*/
const getOutgoingEdges = (nodeId: string): Edge[] => {
return workflowStore.edges.filter(edge => edge.source === nodeId)
}
/**
* Check if node can be connected to another
*/
const canConnect = (sourceId: string, targetId: string): boolean => {
if (sourceId === targetId) return false
const existingConnection = workflowStore.edges.find(
edge => edge.source === sourceId && edge.target === targetId
)
if (existingConnection) return false
const wouldCreateCycle = (source: string, target: string): boolean => {
const visited = new Set<string>()
const queue = [target]
while (queue.length > 0) {
const current = queue.shift()!
if (current === source) return true
if (visited.has(current)) continue
visited.add(current)
const outgoing = getOutgoingEdges(current)
queue.push(...outgoing.map(e => e.target))
}
return false
}
return !wouldCreateCycle(sourceId, targetId)
}
/**
* Validate all nodes
*/
const validateNodes = (): { valid: boolean; errors: string[] } => {
const errors: string[] = []
const hasTrigger = workflowStore.nodes.some(
node => node.type === NODE_TYPES.MANUAL_TRIGGER
)
if (!hasTrigger) {
errors.push('Workflow must have at least one trigger node')
}
workflowStore.nodes.forEach(node => {
const incoming = getIncomingEdges(node.id)
const outgoing = getOutgoingEdges(node.id)
if (incoming.length === 0 && outgoing.length === 0 && node.type !== NODE_TYPES.MANUAL_TRIGGER) {
errors.push(`Node "${node.data.label || node.id}" is not connected`)
}
})
return {
valid: errors.length === 0,
errors,
}
}
/**
* Clear all nodes and edges
*/
const clearAll = () => {
workflowStore.clearCanvas()
selectedNodeId.value = null
copiedNode.value = null
nodeIdCounter.value = 1
}
return {
// State
nodes,
selectedNodeId,
selectedNode,
copiedNode,
// Methods
getNodeById,
selectNode,
createNode,
addNodeAtCenter,
updateNodeData,
updateNodePosition,
deleteNode,
deleteNodes,
duplicateNode,
copyNode,
cutNode,
pasteNode,
getConnectedNodes,
getIncomingEdges,
getOutgoingEdges,
canConnect,
validateNodes,
clearAll,
}
} |