import { RevueFlowState, ConnectionMode } from '../types';

export const initialState: RevueFlowState = {
  width: 0,
  height: 0,
  transform: [0, 0, 1],
  nodes: [],
  edges: [],
  selectedElements: null,
  selectedNodesBbox: { x: 0, y: 0, width: 0, height: 0 },

  d3Zoom: null,
  d3Selection: null,
  d3ZoomHandler: undefined,
  minZoom: 0.5,
  maxZoom: 2,
  translateExtent: [
    [Number.NEGATIVE_INFINITY, Number.NEGATIVE_INFINITY],
    [Number.POSITIVE_INFINITY, Number.POSITIVE_INFINITY]
  ],

  nodeExtent: [
    [Number.NEGATIVE_INFINITY, Number.NEGATIVE_INFINITY],
    [Number.POSITIVE_INFINITY, Number.POSITIVE_INFINITY]
  ],

  nodesSelectionActive: false,
  selectionActive: false,

  userSelectionRect: {
    startX: 0,
    startY: 0,
    x: 0,
    y: 0,
    width: 0,
    height: 0,
    draw: false
  },
  connectionNodeId: null,
  connectionHandleId: null,
  connectionHandleType: 'source',
  connectionPosition: { x: 0, y: 0 },
  connectionMode: ConnectionMode.Strict,

  snapGrid: [15, 15],
  snapToGrid: false,

  nodesDraggable: true,
  nodesConnectable: true,
  elementsSelectable: true,

  multiSelectionActive: false,

  revueFlowVersion: typeof __REVUE_FLOW_VERSION__ !== 'undefined' ? __REVUE_FLOW_VERSION__ : '-'
};