import type { CSSProperties } from 'vue'
import type { KeyFilter } from '@vueuse/core'
import type { DefaultEdgeOptions, Edge, EdgeUpdatable, GraphEdge } from './edge'
import type { CoordinateExtent, GraphNode, Node } from './node'
import type { ConnectionLineOptions, ConnectionLineType, ConnectionMode, Connector } from './connection'
import type { PanOnScrollMode } from './zoom'
import type { EdgeTypesObject, NodeTypesObject } from './components'
export declare type ElementData = any
/** A flow element (after parsing into state)  */
export declare type FlowElement<Data = ElementData> = GraphNode<Data> | GraphEdge<Data>
export declare type FlowElements<Data = ElementData> = FlowElement<Data>[]
/** Initial elements (before parsing into state) */
export declare type Element<Data = ElementData> = Node<Data> | Edge<Data>
export declare type Elements<Data = ElementData> = Element<Data>[]
export declare type CustomThemeVars = Record<string, string | number>
export declare type CSSVars =
  | '--vf-node-color'
  | '--vf-box-shadow'
  | '--vf-node-bg'
  | '--vf-node-text'
  | '--vf-connection-path'
  | '--vf-handle'
export declare type ThemeVars = {
  [key in CSSVars]?: CSSProperties['color']
}
export declare type Styles = CSSProperties & ThemeVars & CustomThemeVars
export declare type ClassFunc<ElementType extends FlowElement = FlowElement> = (element: ElementType) => string | void
export declare type StyleFunc<ElementType extends FlowElement = FlowElement> = (element: ElementType) => Styles | void
/** Handle Positions */
export declare enum Position {
  Left = 'left',
  Top = 'top',
  Right = 'right',
  Bottom = 'bottom',
}
export interface XYPosition {
  x: number
  y: number
}
export declare type XYZPosition = XYPosition & {
  z: number
}
export interface Dimensions {
  width: number
  height: number
}
export interface Box extends XYPosition {
  x2: number
  y2: number
}
export interface Rect extends Dimensions, XYPosition {}
export declare type SnapGrid = [number, number]
export declare enum BackgroundVariant {
  Lines = 'lines',
  Dots = 'dots',
}
export interface SelectionRect extends Rect {
  startX: number
  startY: number
  draw: boolean
}
export interface FlowExportObject {
  nodes: GraphNode[]
  edges: GraphEdge[]
  position: [number, number]
  zoom: number
}
export interface FlowProps {
  id?: string
  modelValue?: Elements
  nodes?: Node[]
  edges?: Edge[]
  /** either use the edgeTypes prop to define your edge-types or use slots (<template #edge-mySpecialType="props">) */
  edgeTypes?: EdgeTypesObject
  /** either use the nodeTypes prop to define your node-types or use slots (<template #node-mySpecialType="props">) */
  nodeTypes?: NodeTypesObject
  connectionMode?: ConnectionMode
  /** @deprecated use {@link ConnectionLineOptions.type} */
  connectionLineType?: ConnectionLineType
  /** @deprecated use {@link ConnectionLineOptions.style} */
  connectionLineStyle?: CSSProperties | null
  connectionLineOptions?: ConnectionLineOptions
  deleteKeyCode?: KeyFilter
  selectionKeyCode?: KeyFilter
  multiSelectionKeyCode?: KeyFilter
  zoomActivationKeyCode?: KeyFilter
  snapToGrid?: boolean
  snapGrid?: SnapGrid
  onlyRenderVisibleElements?: boolean
  edgesUpdatable?: EdgeUpdatable
  nodesDraggable?: boolean
  nodesConnectable?: boolean
  elementsSelectable?: boolean
  selectNodesOnDrag?: boolean
  /** move pane on drag, replaced prop `paneMovable` */
  panOnDrag?: boolean
  minZoom?: number
  maxZoom?: number
  defaultZoom?: number
  defaultPosition?: [number, number]
  translateExtent?: CoordinateExtent
  nodeExtent?: CoordinateExtent
  defaultMarkerColor?: string
  zoomOnScroll?: boolean
  zoomOnPinch?: boolean
  panOnScroll?: boolean
  panOnScrollSpeed?: number
  panOnScrollMode?: PanOnScrollMode
  zoomOnDoubleClick?: boolean
  /** enable this to prevent vue flow from scrolling inside the container, i.e. allow for the page to scroll */
  preventScrolling?: boolean
  edgeUpdaterRadius?: number
  fitViewOnInit?: boolean
  /** allow connection with click handlers, i.e. support touch devices */
  connectOnClick?: boolean
  /** apply default change handlers for position, dimensions, adding/removing nodes. set this to false if you want to apply the changes manually */
  applyDefault?: boolean
  /** automatically create an edge when connection is triggered */
  autoConnect?: boolean | Connector
  noDragClassName?: string
  noWheelClassName?: string
  noPanClassName?: string
  /** does not work for the `addEdge` utility! */
  defaultEdgeOptions?: DefaultEdgeOptions
  /** elevates edges when selected and applies z-Index to put them above their nodes */
  elevateEdgesOnSelect?: boolean
}
export declare type FlowOptions = FlowProps