import * as React from 'react';
import { IRefObject, IRenderFunction, KeyCodes, IStyleFunctionOrObject } from '../../../Utilities';
import { IPersonaProps } from '../../Persona/Persona.types';
import { IStyle, ITheme } from '../../../Styling';
import { ISpinnerStyleProps } from '../../Spinner/Spinner.types';
import { ISuggestionItemProps } from './SuggestionsItem.types';
/**
 * Suggestions component.
 * {@docCategory Pickers}
 */
export interface ISuggestions<T> {
    /** Execute the action selected. Can be SearchMore or ForceResolve actions. */
    executeSelectedAction: () => void;
    /** Focus on the ForceResolve action above the suggestions. If not available then focus on SearchMore action. */
    focusAboveSuggestions: () => void;
    /** Focus on the SearchMore action below the suggestions. If not available then focus on ForceResolve action. */
    focusBelowSuggestions: () => void;
    /** Focus the SearchMore action button. */
    focusSearchForMoreButton: () => void;
    /** Whether it has any suggested actions like ForceResolve or SearchMore. */
    hasSuggestedAction: () => boolean;
    /** Whether any of the suggested actions (ForceResolve or SearchMore) is selected. */
    hasSuggestedActionSelected: () => boolean;
    /** Returns true if the event was handled, false otherwise. */
    tryHandleKeyDown: (keyCode: number, currentSuggestionIndex: number) => boolean;
}
/**
 * Suggestions props interface. Refers to the entire container holding all the suggestions.
 * Type T is the type of the items that are displayed.
 * {@docCategory Pickers}
 */
export interface ISuggestionsProps<T> extends React.Props<any> {
    /**
     * Optional callback to access the ISuggestions interface. Use this instead of ref for accessing
     * the public methods and properties of the component.
     */
    componentRef?: IRefObject<ISuggestions<T>>;
    /**
     * How the suggestion should look in the suggestion list.
     */
    onRenderSuggestion: (props: T, suggestionItemProps: ISuggestionItemProps<T>) => JSX.Element;
    /**
     * What should occur when a suggestion is clicked
     */
    onSuggestionClick: (ev?: React.MouseEvent<HTMLElement>, item?: any, index?: number) => void;
    /**
     * The list of Suggestions that will be displayed
     */
    suggestions: ISuggestionModel<T>[];
    /**
     * How the "no result found" should look in the suggestion list.
     */
    onRenderNoResultFound?: IRenderFunction<void>;
    /**
     * The text that appears at the top of the suggestions list.
     */
    suggestionsHeaderText?: string;
    /**
     * The text that should appear at the top of the most recently used box.
     */
    mostRecentlyUsedHeaderText?: string;
    /**
     * The text that appears indicating to the user that they can search for more results.
     */
    searchForMoreText?: string;
    /**
     * The callback that should be called when the user attempts to get more results
     */
    onGetMoreResults?: () => void;
    /**
     * The text that appears indicating to the use to force resolve the input
     */
    forceResolveText?: string;
    /**
     * The callback that should be called to see if the force resolve command should be shown
     */
    showForceResolve?: () => boolean;
    /**
     * The callback that should be called when the user attempts to use the input text as as item
     */
    createGenericItem?: () => void;
    /**
     * The CSS className of the suggestions root.
     */
    className?: string;
    /**
     * The CSS className of the suggestions list
     */
    suggestionsClassName?: string;
    /**
     * The text that should appear if there is a search error.
     */
    searchErrorText?: string;
    /**
     * The text that should appear if no results are found when searching.
     */
    noResultsFoundText?: string;
    /**
     * The className of the suggestion item.
     */
    suggestionsItemClassName?: string;
    /**
     * Used to indicate whether or not the user can request more suggestions.
     * Dictates whether or not the searchForMore button is displayed.
     */
    moreSuggestionsAvailable?: boolean;
    /**
     * Used to indicate whether or not the suggestions are loading.
     */
    isLoading?: boolean;
    /**
     * Used to indicate whether or not the component is searching for more results.
     */
    isSearching?: boolean;
    /**
     * The text to display while the results are loading.
     */
    loadingText?: string;
    /**
     * The text to display while searching for more results in a limited suggestions list.
     */
    searchingText?: string;
    /**
     * Indicates if a short list of recent suggestions should be shown.
     */
    isMostRecentlyUsedVisible?: boolean;
    /**
     * Function to fire when one of the optional remove buttons on a suggestion is clicked.
     *
     * TODO (adjective-object) remove IPersonaprops before the next major version bump
     */
    onSuggestionRemove?: (ev?: React.MouseEvent<HTMLElement>, item?: T | IPersonaProps, index?: number) => void;
    /**
     * Indicates if the text in resultsFooter or resultsFooterFull should be shown at the end of the suggestion list.
     * @defaultvalue true
     */
    isResultsFooterVisible?: boolean;
    /**
     * Maximum number of suggestions to show in the full suggestion list.
     */
    resultsMaximumNumber?: number;
    /**
     * A renderer that adds an element at the end of the suggestions list it has more items than resultsMaximumNumber.
     */
    resultsFooterFull?: (props: ISuggestionsProps<T>) => JSX.Element;
    /**
     * A renderer that adds an element at the end of the suggestions list it has fewer items than resultsMaximumNumber.
     */
    resultsFooter?: (props: ISuggestionsProps<T>) => JSX.Element;
    /**
     * Indicates whether to show a button with each suggestion to remove that suggestion.
     */
    showRemoveButtons?: boolean;
    /**
     * Screen reader message to read when there are suggestions available.
     */
    suggestionsAvailableAlertText?: string;
    /**
     * A function that resets focus to the expected item in the suggestion list
     */
    refocusSuggestions?: (keyCode: KeyCodes) => void;
    /**
     * An ARIA label for the container that is the parent of the suggestions.
     */
    suggestionsContainerAriaLabel?: string;
    /**
     * An ARIA label to use for the buttons to remove individual suggestions.
     */
    removeSuggestionAriaLabel?: string;
    /**
     * The string that will be used as the suggestionsListId.
     * Will be used by the BasePicker to keep track of the list for aria.
     */
    suggestionsListId?: string;
    /** Call to provide customized styling that will layer on top of the variant rules. */
    styles?: IStyleFunctionOrObject<any, any>;
    /** Theme provided by High-Order Component. */
    theme?: ITheme;
}
/**
 * The props needed to construct Suggestions styles.
 * {@docCategory Pickers}
 */
export declare type ISuggestionsStyleProps = Required<Pick<ISuggestionsProps<any>, 'theme'>> & Pick<ISuggestionsProps<any>, 'className' | 'suggestionsClassName'> & {
    /** Whether the forceResolve actionButton is selected. */
    forceResolveButtonSelected?: boolean;
    /** Whether the searchForMore actionButton is selected. */
    searchForMoreButtonSelected?: boolean;
};
/**
 * Represents the stylable areas of the Suggestions.
 * {@docCategory Pickers}
 */
export interface ISuggestionsStyles {
    /** Root element of the suggestions outer wrapper. */
    root: IStyle;
    /** Refers to the suggestions container. */
    suggestionsContainer: IStyle;
    /** Refers to the title rendered for suggestions container header and/or footer (if provided). */
    title: IStyle;
    /** Refers to the 'Force resolve' actionButton. */
    forceResolveButton: IStyle;
    /** Refers to the 'Search for more' actionButton. */
    searchForMoreButton: IStyle;
    /** Refers to the text rendered when no suggestions are found. */
    noSuggestions: IStyle;
    /** Refers to the text displaying if more suggestions available. */
    suggestionsAvailable: IStyle;
    /** SubComponents (Spinner) styles. */
    subComponentStyles: ISuggestionsSubComponentStyles;
}
/**
 * Styles interface of the SubComponents rendered within PeoplePickerItemSelected.
 * {@docCategory Pickers}
 */
export interface ISuggestionsSubComponentStyles {
    /** Refers to the Spinner rendered within the Suggestions when searching or loading suggestions. */
    spinner: IStyleFunctionOrObject<ISpinnerStyleProps, any>;
}
/**
 * SuggestionModel interface.
 * Type T is the type of the item that is suggested (Persona, Tag or any other custom picker).
 * {@docCategory Pickers}
 */
export interface ISuggestionModel<T> {
    /** The suggested item of the type T */
    item: T;
    /** Whether the suggested item is selected or not. */
    selected: boolean;
    /** Aria-label string for each suggested item. */
    ariaLabel?: string;
}
/**
 * Enum to help identify which suggestions action button is selected.
 * {@docCategory Pickers}
 */
export declare enum SuggestionActionType {
    /** None of the actions is selected. */
    none = 0,
    /** ForceResolve action is selected. */
    forceResolve = 1,
    /** SearchMore action is selected. */
    searchMore = 2
}
