feat: variable node

2026-03-06 22:31:24 +01:00
parent 17739de7bd
commit 97f6ead03b
4 changed files with 242 additions and 8 deletions
--- a/src/components/graph/VariableNode.tsx
+++ b/src/components/graph/VariableNode.tsx
@@ -0,0 +1,133 @@
+import React, { memo, useCallback, useContext } from 'react'
+import FlowContext from '../../lib/flowContext'
+import {
+    BaseNode,
+    BaseNodeContent,
+    BaseNodeHeader,
+    BaseNodeHeaderTitle,
+} from './BaseNode'
+import { OutputHandle } from './NodeHandles'
+import { Variable } from 'lucide-react'
+
+type ValueType = 'string' | 'number' | 'boolean'
+
+type Props = {
+    id: string
+    data: {
+        value?: string | number | boolean
+        valueType?: ValueType
+    }
+}
+
+const DEFAULT_BY_TYPE: Record<ValueType, string | number | boolean> = {
+    string: '',
+    number: 0,
+    boolean: false,
+}
+
+function coerceValue(raw: string, valueType: ValueType): string | number | boolean {
+    switch (valueType) {
+        case 'number': {
+            const n = Number(raw)
+            return Number.isNaN(n) ? 0 : n
+        }
+        case 'boolean':
+            return /^(1|true|yes|on)$/i.test(raw.trim())
+        default:
+            return raw
+    }
+}
+
+export const VariableNode = memo(function VariableNode({ id, data }: Props) {
+    const ctx = useContext(FlowContext)
+    const setNodes = ctx?.setNodes
+
+    const valueType: ValueType = data?.valueType ?? 'string'
+    const value = data?.value ?? DEFAULT_BY_TYPE[valueType]
+    const displayValue = typeof value === 'string' ? value : String(value)
+
+    const updateData = useCallback(
+        (updates: { value?: string | number | boolean; valueType?: ValueType }) => {
+            if (!setNodes) return
+            setNodes((nds: any[]) =>
+                nds.map((n) =>
+                    n.id === id ? { ...n, data: { ...n.data, ...updates } } : n
+                )
+            )
+        },
+        [id, setNodes]
+    )
+
+    const onTypeChange = useCallback(
+        (e: React.ChangeEvent<HTMLSelectElement>) => {
+            const nextType = e.target.value as ValueType
+            const raw = typeof value === 'boolean' ? (value ? 'true' : 'false') : String(value)
+            const nextValue = coerceValue(raw, nextType)
+            updateData({ valueType: nextType, value: nextValue })
+        },
+        [value, updateData]
+    )
+
+    const onValueChange = useCallback(
+        (e: React.ChangeEvent<HTMLInputElement>) => {
+            const raw = e.target.type === 'checkbox' ? (e.target.checked ? 'true' : 'false') : e.target.value
+            const nextValue = coerceValue(raw, valueType)
+            updateData({ value: nextValue })
+        },
+        [valueType, updateData]
+    )
+
+    return (
+        <BaseNode className="w-56">
+            <BaseNodeHeader className="border-b">
+                <Variable className="size-4" />
+                <BaseNodeHeaderTitle>{id}</BaseNodeHeaderTitle>
+            </BaseNodeHeader>
+
+            <BaseNodeContent className="gap-2">
+                <div className="flex flex-col gap-1.5">
+                    <label className="text-xs font-medium text-muted-foreground">Type</label>
+                    <select
+                        value={valueType}
+                        onChange={onTypeChange}
+                        className="w-full rounded border border-input bg-background px-2 py-1.5 text-sm"
+                    >
+                        <option value="string">String</option>
+                        <option value="number">Number</option>
+                        <option value="boolean">Boolean</option>
+                    </select>
+                </div>
+                <div className="flex flex-col gap-1.5">
+                    <label className="text-xs font-medium text-muted-foreground">Value</label>
+                    {valueType === 'boolean' ? (
+                        <label className="flex items-center gap-2 text-sm">
+                            <input
+                                type="checkbox"
+                                checked={value === true}
+                                onChange={onValueChange}
+                                className="rounded border-input"
+                            />
+                            {value ? 'true' : 'false'}
+                        </label>
+                    ) : (
+                        <input
+                            type={valueType === 'number' ? 'number' : 'text'}
+                            value={valueType === 'number' ? (value as number) : displayValue}
+                            onChange={onValueChange}
+                            className="w-full rounded border border-input bg-background px-2 py-1.5 text-sm"
+                        />
+                    )}
+                </div>
+                <p className="text-[10px] text-muted-foreground">
+                    Use in config: <code className="rounded bg-muted px-0.5">prop: $&#123;{id}&#125;</code>
+                </p>
+            </BaseNodeContent>
+
+            <OutputHandle id="out" />
+        </BaseNode>
+    )
+})
+
+VariableNode.displayName = 'VariableNode'
+
+export default VariableNode