/**
 *
 * Rating component is a star based selection input.
 *
 * [Live Demo](https://www.primevue.org/rating/)
 *
 * @module rating
 *
 */
import { VNode } from 'vue';
import { ComponentHooks } from '../basecomponent';
import { PassThroughOptions } from '../passthrough';
import { DefineComponent, DesignToken, EmitFn, GlobalComponentConstructor, PassThrough } from '../ts-helpers';

export declare type RatingPassThroughOptionType = RatingPassThroughAttributes | ((options: RatingPassThroughMethodOptions) => RatingPassThroughAttributes | string) | string | null | undefined;

/**
 * Custom passthrough(pt) option method.
 */
export interface RatingPassThroughMethodOptions {
    /**
     * Defines instance.
     */
    instance: any;
    /**
     * Defines valid properties.
     */
    props: RatingProps;
    /**
     * Defines current inline state.
     */
    state: RatingState;
    /**
     * Defines current options.
     */
    context: RatingContext;
    /**
     * Defines valid attributes.
     */
    attrs: any;
    /**
     * Defines parent options.
     */
    parent: any;
    /**
     * Defines passthrough(pt) options in global config.
     */
    global: object | undefined;
}

/**
 * Custom passthrough(pt) options.
 * @see {@link RatingProps.pt}
 */
export interface RatingPassThroughOptions {
    /**
     * Used to pass attributes to the root's DOM element.
     */
    root?: RatingPassThroughOptionType;
    /**
     * Used to pass attributes to the option's DOM element.
     */
    option?: RatingPassThroughOptionType;
    /**
     * Used to pass attributes to the on icon's DOM element.
     */
    onIcon?: RatingPassThroughOptionType;
    /**
     * Used to pass attributes to the off icon's DOM element.
     */
    offIcon?: RatingPassThroughOptionType;
    /**
     * Used to pass attributes to the hidden option input container's DOM element.
     */
    hiddenOptionInputContainer?: RatingPassThroughOptionType;
    /**
     * Used to pass attributes to the hidden option input's DOM element.
     */
    hiddenOptionInput?: RatingPassThroughOptionType;
    /**
     * Used to manage all lifecycle hooks.
     * @see {@link BaseComponent.ComponentHooks}
     */
    hooks?: ComponentHooks;
}

/**
 * Custom passthrough attributes for each DOM elements
 */
export interface RatingPassThroughAttributes {
    [key: string]: any;
}

/**
 * Defines current inline state in Rating component.
 */
export interface RatingState {
    /**
     * name state as a number.
     */
    name: string;
    /**
     * focusedOptionIndex state as a number.
     */
    focusedOptionIndex: number;
}

/**
 * Defines current options in Rating component.
 */
export interface RatingContext {
    /**
     * Current active state of the option as a boolean.
     * @defaultValue false
     */
    active: boolean;
    /**
     * Current focused state of option as a boolean.
     * @defaultValue false
     */
    focused: boolean;
}

/**
 * Custom change event.
 * @see {@link RatingEmitsOptions.change}
 */
export interface RatingChangeEvent {
    /**
     * Browser event
     */
    originalEvent: Event;
    /**
     * Selected option value
     */
    value: number;
}

/**
 * Defines valid properties in Rating component.
 */
export interface RatingProps {
    /**
     * Value of the rating.
     */
    modelValue?: number | undefined;
    /**
     * Name of the element.
     */
    name?: string | undefined;
    /**
     * When present, it specifies that the element should be disabled.
     * @defaultValue false
     */
    disabled?: boolean | undefined;
    /**
     * When present, it specifies that component is read-only.
     * @defaultValue false
     */
    readonly?: boolean | undefined;
    /**
     * Number of stars.
     * @defaultValue 5
     */
    stars?: number | undefined;
    /**
     * Icon for the on state.
     */
    onIcon?: string | undefined;
    /**
     * Icon for the off state.
     */
    offIcon?: string | undefined;
    /**
     * It generates scoped CSS variables using design tokens for the component.
     */
    dt?: DesignToken<any>;
    /**
     * Used to pass attributes to DOM elements inside the component.
     * @type {RatingPassThroughOptions}
     */
    pt?: PassThrough<RatingPassThroughOptions>;
    /**
     * Used to configure passthrough(pt) options of the component.
     * @type {PassThroughOptions}
     */
    ptOptions?: PassThroughOptions;
    /**
     * When enabled, it removes component related styles in the core.
     * @defaultValue false
     */
    unstyled?: boolean;
}

/**
 * Defines valid slots in Rating component.
 */
export interface RatingSlots {
    /**
     * Custom on icon template.
     * @param {Object} scope - on icon slot's params.
     */
    onicon(scope: {
        /**
         * Option value
         */
        value: number;
        /**
         * Style class of the icon.
         */
        class: string;
    }): VNode[];
    /**
     * Custom off icon template.
     * @param {Object} scope - off icon slot's params.
     */
    officon(scope: {
        /**
         * Option value
         */
        value: number;
        /**
         * Style class of the icon.
         */
        class: string;
    }): VNode[];
}

/**
 * Defines valid emits in Rating component.
 */
export interface RatingEmitsOptions {
    /**
     * Emitted when the value changes.
     * @param {number} value - New value.
     */
    'update:modelValue'(value: number): void;
    /**
     * Callback to invoke when a suggestion is selected.
     * @param {RatingChangeEvent} event - Custom change event.
     */
    change(event: RatingChangeEvent): void;
    /**
     * Callback to invoke when the component receives focus.
     * @param {Event} event - Browser event.
     */
    focus(event: Event): void;
    /**
     * Callback to invoke when the component loses focus.
     * @param {Event} event - Browser event.
     */
    blur(event: Event): void;
}

export declare type RatingEmits = EmitFn<RatingEmitsOptions>;

/**
 * **PrimeVue - Rating**
 *
 * _Rating component is a star based selection input._
 *
 * [Live Demo](https://www.primevue.org/rating/)
 * --- ---
 * ![PrimeVue](https://primefaces.org/cdn/primevue/images/logo-100.png)
 *
 * @group Component
 *
 */
declare const Rating: DefineComponent<RatingProps, RatingSlots, RatingEmits>;

declare module 'vue' {
    export interface GlobalComponents {
        Rating: GlobalComponentConstructor<RatingProps, RatingSlots, RatingEmits>;
    }
}

export default Rating;