Add Graph draft

apps/builder/components/board/graph/BlockNode/StartBlockNode.tsx

@@ -0,0 +1,66 @@
+import {
+  Editable,
+  EditableInput,
+  EditablePreview,
+  Stack,
+  useEventListener,
+} from '@chakra-ui/react'
+import React, { useState } from 'react'
+import { StartBlock } from 'bot-engine'
+import { useGraph } from 'contexts/GraphContext'
+import { StepNode } from './StepNode'
+
+export const StartBlockNode = ({ block }: { block: StartBlock }) => {
+  const { setStartBlock } = useGraph()
+  const [isMouseDown, setIsMouseDown] = useState(false)
+  const [titleValue, setTitleValue] = useState(block.title)
+
+  const handleTitleChange = (title: string) => setTitleValue(title)
+
+  const handleMouseDown = () => {
+    setIsMouseDown(true)
+  }
+  const handleMouseUp = () => {
+    setIsMouseDown(false)
+  }
+
+  const handleMouseMove = (event: MouseEvent) => {
+    if (!isMouseDown) return
+    const { movementX, movementY } = event
+
+    setStartBlock({
+      ...block,
+      graphCoordinates: {
+        x: block.graphCoordinates.x + movementX,
+        y: block.graphCoordinates.y + movementY,
+      },
+    })
+  }
+
+  useEventListener('mousemove', handleMouseMove)
+
+  return (
+    <Stack
+      p="4"
+      rounded="lg"
+      bgColor="blue.50"
+      borderWidth="2px"
+      borderColor="gray.400"
+      minW="300px"
+      transition="border 300ms"
+      pos="absolute"
+      style={{
+        transform: `translate(${block.graphCoordinates.x}px, ${block.graphCoordinates.y}px)`,
+      }}
+      onMouseDown={handleMouseDown}
+      onMouseUp={handleMouseUp}
+      spacing="14px"
+    >
+      <Editable value={titleValue} onChange={handleTitleChange}>
+        <EditablePreview _hover={{ bgColor: 'blue.100' }} px="1" />
+        <EditableInput minW="0" px="1" />
+      </Editable>
+      <StepNode step={block.steps[0]} isConnectable={true} />
+    </Stack>
+  )
+}