// https://jsoncanvas.org

const convertFromCanvas = (space) => {
  const yThreshold = 150
  let newSpace = {}
  try {
    newSpace.name = `Canvas ${utils.journalSpaceName({})}`
    newSpace.id = nanoid()
    newSpace.background = consts.defaultSpaceBackground
    newSpace.cards = []
    newSpace.connections = []
    newSpace.connectionTypes = []
    const shouldNudgeCardsY = space.nodes.filter(node => node.y <= yThreshold)
    space.nodes.forEach(node => {
      // url
      let shouldUpdateUrlPreview
      if (node.url) {
        shouldUpdateUrlPreview = true
      }
      // y
      let y = node.y
      if (shouldNudgeCardsY) {
        y += yThreshold
      }
      // name
      let name = node.text || node.url || node.label
      if (node.file) {
        name = `\`${node.file}\``
      }
      const newCard = {
        id: node.id,
        x: node.x,
        y,
        backgroundColor: node.canvasColor || node.color,
        name,
        shouldUpdateUrlPreview
      }
      newSpace.cards.push(newCard)
    })
    space.edges.forEach((edge, index) => {
      const typeId = nanoid()
      const newConnection = {
        id: edge.id,
        startCardId: edge.fromNode,
        endCardId: edge.toNode,
        controlPoint: `q00,00`, // straight line
        directionIsVisible: Boolean(edge.fromEnd === 'arrow' || edge.toEnd === 'arrow'),
        connectionTypeId: typeId,
        labelIsVisible: Boolean(edge.label)
      }
      const newConnetionType = {
        id: typeId,
        color: edge.canvasColor || edge.color || newTypeColor(),
        name: edge.label || `Connection Type ${index}`
      }
      newSpace.connections.push(newConnection)
      newSpace.connectionTypes.push(newConnetionType)
    })
    return newSpace
  } catch (error) {
    console.error('🚒 convertFromCanvas', error)
  }
}