import { Hooks } from './hooks';
import { AttachData } from './helpers/attachto'
import { VNodeStyle } from './modules/style'
import { On } from './modules/eventlisteners'
import { Attrs } from './modules/attributes'
import { Classes } from './modules/class'
import { Props } from './modules/props'
import { Dataset } from './modules/dataset'
import { Hero } from './modules/hero'

export type Key = string | number;

export interface VNode {
  sel: string | undefined;
  data: VNodeData | undefined;
  children: Array<VNode | string> | undefined;
  elm: Node | undefined;
  text: string | undefined;
  key: Key | undefined;
}

export interface VNodeData {
  props?: Props;
  attrs?: Attrs;
  class?: Classes;
  style?: VNodeStyle;
  dataset?: Dataset;
  on?: On;
  hero?: Hero;
  attachData?: AttachData;
  hook?: Hooks;
  key?: Key;
  ns?: string; // for SVGs
  fn?: () => VNode; // for thunks
  args?: any[]; // for thunks
  [key: string]: any; // for any other 3rd party module
}

export function vnode (sel: string | undefined,
  data: any | undefined,
  children: Array<VNode | string> | undefined,
  text: string | undefined,
  elm: Element | Text | undefined): VNode {
  const key = data === undefined ? undefined : data.key;
  return { sel, data, children, text, elm, key };
}

export default vnode;