import { ShallowRef, Slot } from 'vue';

import { TreeNode } from '../basetree';
import { QueryParams, ShortFetchListResponse } from '../datatable';
import { ClassComponent, GlobalComponentConstructor } from '../ts-helpers.d';

export type KeysModelValue = string[] | number[] | undefined;
export type NodeModelValue =
  | number
  | TreeNode
  | string
  | (number | TreeNode | string)[];

export interface ButtonSelectTreeProps {
  /**
   * Below are props that commonly used
   * @example - [type, value as modelvalue, fieldDataKey, selectionMode, useValidator, mandatory, fieldName, validatorMessage, label, dialogHeader]
   */

  /**
   * The tree type.
   */
  type: 'group' | 'category';
  /**
   * The model value.
   * If you deal with form validation of edit action,
   * you need to bind the initital value :value="yourValue"
   * Please take a note that you should pass value that match your `props.fieldDataKey`
   */
  value?: NodeModelValue;
  /**
   * If selection mode is single mode and you're on edit form, this props should be used
   */
  selectedNode?: TreeNode;
  /**
   * To determine which field key that will be used as value
   */
  fieldDataKey?: string;
  /**
   * The selection Mode.
   *
   * @default 'checkbox';
   */
  selectionMode?: 'single' | 'checkbox';
  /**
   * Wether the input should be validated with vee-validator or not.
   * If you use this component within form input, you need to set this props as true.
   */
  useValidator?: boolean;
  /**
   * This prop is required if you use this component in a form input.
   * Specify the unique field name, match with your needs for API request.
   *
   * @default 'selectTree'
   */
  fieldName?: string;
  /**
   * Make this field as mandatory on form input.
   */
  mandatory?: boolean;
  /**
   * Set custom validator message.
   * Will be show if invalid="true"
   */
  validatorMessage?: string;
  /**
   * Set custom header Dialog Select Tree
   */
  dialogHeader?: string;
  /**
   * The button label.
   *
   * @default 'Select ${props.type}'
   */
  label?: string;

  fetchTree?: (
    type: 'group' | 'category',
    params?: QueryParams,
  ) => Promise<ShortFetchListResponse<TreeNode> | undefined>;
  params?: QueryParams;
  /**
   * Specify wether the all tree node should be auto checked once it rendered.
   * @default false
   */
  autoSelectAll?: boolean;
  /**
   * A list of node keys that should be disabled along with their children.
   */
  disableKeys?: string[] | number[];
  /**
   * A list of node keys that should be disabled, affecting only the specified nodes and not their children.
   */
  exactDisableKeys?: string[] | number[];
  /**
   * Disable the Select button
   */
  disabled?: boolean;
  exactDisableKey?: string | number;
  /**
   * Disable node 'All' selection
   */
  disableNodeAll?: boolean;

  /**
   * A function to determine when the node should be disabled,
   * When true, it will disabled selection on current node and all level childrend
   *
   * @return true to disabled
   */
  disableNodeWhen?: (node: TreeNode) => boolean;

  /**
   * Old behavior is preventing select if there is no node selected.
   *
   * This props comes to make options, wether the selection can be empty or not.
   * @default true
   */
  allowEmptySelection?: boolean;
  /**
   * The field label
   */
  fieldLabel?: string;
  /**
   * The information to be shown to user by hovering info icon.
   */
  fieldInfo?: string;
  /**
   * Invalid state.
   */
  invalid?: boolean;
  /**
   * Defines width of button for 'Select Group' / 'Select Category' in px.
   * Deprecated, use props `width` instead
   *
   * @deprecated
   */
  btnWidth?: number;
  /**
   * Defines width of button for 'Select Group' / 'Select Category' in px.
   */
  width?: number;
  /**
   * Defines the tree is readonly and disabled.
   */
  readonly?: boolean;
  /**
   * Defines the group tree to showing disposable groups.
   */
  showDisposableGroups?: boolean;
  /**
   * Defines the tree to be flattened and shows disposable only
   */
  flattenDisposableNode?: boolean;
  /**
   * Defines the group tree to disable excluded keys
   */
  excludedKeys?: string[];
  /**
   * Define wether single selection can be edited or readonly
   * @default true
   */
  singleEditable?: boolean;
  /**
   * Define wether single selection can be reset with close button
   * @default false
   */
  singleResetable?: boolean;
  /**
   * Show all selected node on button render
   *
   * @default false
   */
  fetchTreeOnButtonRender?: boolean;
}

export type ButtonSelectTreeEmits = {
  'update:value': [keys: NodeModelValue, isAllSelected?: boolean];
  'dialogShown': [];
  'dialogHidden': [];
  'reset': [];
};

export interface ButtonSelectTreeSlots {
  treenode: Slot<{ node: TreeNode }>;
}

/**
 * **WangsVue - ButtonSelectTree**
 *
 * _ButtonSelectTree handles select tree dialog and field validaion._
 *
 * --- ---
 * ![TSVue](https://ik.imagekit.io/kurniadev/TS-HEAD-BLACK.png)
 *
 * @group Component
 */
declare class ButtonSelectTree extends ClassComponent<
  ButtonSelectTreeProps,
  ButtonSelectTreeSlots,
  ButtonSelectTreeEmits
> {
  dialogTreeKey: ShallowRef<number>;
}

declare module '@vue/runtime-core' {
  interface GlobalComponents {
    ButtonSelectTree: GlobalComponentConstructor<ButtonSelectTree>;
  }
}

export default ButtonSelectTree;