import * as _angular_core from '@angular/core';
import { WrIconName } from 'ngwr/icon';

/**
 * @license
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://github.com/thekhegay/ngwr/blob/main/LICENSE
 */

/**
 * One entry in a `<wr-segmented>` track.
 *
 * `value` is what the model receives when this segment is picked.
 * `label` is shown when present; otherwise an icon-only segment renders.
 */
interface WrSegmentedOption<T = unknown> {
    readonly value: T;
    readonly label?: string;
    readonly icon?: WrIconName;
    readonly disabled?: boolean;
}

/**
 * Single-choice picker rendered as a segmented control. Two-way binds
 * the selected `value`.
 *
 * @example
 * ```html
 * <wr-segmented
 *   [options]="[
 *     { value: 'day',  label: 'Day' },
 *     { value: 'week', label: 'Week' },
 *     { value: 'month', label: 'Month' },
 *   ]"
 *   [(value)]="range"
 * />
 * ```
 *
 * @see https://ngwr.dev/components/segmented
 */
type WrSegmentedSize = 'sm' | 'md' | 'lg';
declare class WrSegmented<T = unknown> {
    /** The segments to render. */
    readonly options: _angular_core.InputSignal<readonly WrSegmentedOption<T>[]>;
    /** Two-way bindable selected value. */
    readonly value: _angular_core.ModelSignal<T | null>;
    /** Disable the whole control. @default false */
    readonly disabled: _angular_core.InputSignalWithTransform<boolean, any>;
    /** Control size — shares the `--wr-control-*` contract. @default 'md' */
    readonly size: _angular_core.InputSignal<WrSegmentedSize>;
    /** Index of the selected option, or `-1` when nothing is selected. */
    protected readonly selectedIndex: _angular_core.Signal<number>;
    /** Flips true after the first paint so the thumb only animates user-driven changes, not the initial snap. */
    private readonly mounted;
    constructor();
    protected readonly classes: _angular_core.Signal<string>;
    /** Inline CSS vars driving the sliding thumb position. */
    protected readonly thumbStyle: _angular_core.Signal<Record<string, string>>;
    protected isSelected(option: WrSegmentedOption<T>): boolean;
    protected select(option: WrSegmentedOption<T>): void;
    protected trackByValue(_: number, option: WrSegmentedOption<T>): unknown;
    static ɵfac: _angular_core.ɵɵFactoryDeclaration<WrSegmented<any>, never>;
    static ɵcmp: _angular_core.ɵɵComponentDeclaration<WrSegmented<any>, "wr-segmented", never, { "options": { "alias": "options"; "required": true; "isSignal": true; }; "value": { "alias": "value"; "required": false; "isSignal": true; }; "disabled": { "alias": "disabled"; "required": false; "isSignal": true; }; "size": { "alias": "size"; "required": false; "isSignal": true; }; }, { "value": "valueChange"; }, never, never, true, never>;
}

export { WrSegmented };
export type { WrSegmentedOption, WrSegmentedSize };