import * as _angular_core from '@angular/core';

/**
 * @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
 */
/**
 * Selection mode for `<wr-calendar>`:
 *
 * - `single` — one date at a time, bound via `[(date)]`
 * - `range` — start + end dates, bound via `[(range)]`
 */
type WrCalendarMode = 'single' | 'range';

/**
 * @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
 */
/**
 * `[start, end]` tuple used by `<wr-calendar>` in `range` mode. Either side
 * may be `null` while the user is mid-selection (start picked, end pending).
 */
type WrCalendarRange = readonly [Date | null, Date | null];

/**
 * Month-view calendar. Supports single-date selection (`mode="single"`) or
 * date-range selection (`mode="range"`). Reusable on its own; consumed by
 * `<wr-date-picker>` inside an overlay.
 *
 * Uses {@link WrDateAdapter} for all date math and formatting — register
 * one via {@link provideWrDateAdapter} at bootstrap.
 *
 * @example
 * ```html
 * <wr-calendar [(date)]="picked" [min]="minDate" />
 *
 * <wr-calendar mode="range" [(range)]="[start, end]" />
 * ```
 *
 * @see https://ngwr.dev/components/calendar
 */
declare class WrCalendar {
    /** Selection mode. @default 'single' */
    readonly mode: _angular_core.InputSignal<WrCalendarMode>;
    /** Two-way bindable single value (used when `mode === 'single'`). */
    readonly date: _angular_core.ModelSignal<Date | null>;
    /** Two-way bindable `[start, end]` (used when `mode === 'range'`). */
    readonly range: _angular_core.ModelSignal<WrCalendarRange>;
    /** Min selectable date (inclusive). */
    readonly min: _angular_core.InputSignal<Date | null>;
    /** Max selectable date (inclusive). */
    readonly max: _angular_core.InputSignal<Date | null>;
    /** Predicate — return `false` to disable specific dates (e.g. weekends only). */
    readonly dateFilter: _angular_core.InputSignal<((date: Date) => boolean) | null>;
    /** Disable interaction entirely. @default false */
    readonly disabled: _angular_core.InputSignalWithTransform<boolean, any>;
    private readonly adapter;
    private readonly host;
    /** Currently displayed month (any date inside it). */
    protected readonly viewDate: _angular_core.WritableSignal<Date>;
    /** Date currently focused by keyboard (single roving tabindex). */
    protected readonly focusedDate: _angular_core.WritableSignal<Date>;
    /** Hovered date during range-mode end-pick — drives the preview highlight. */
    protected readonly hoverDate: _angular_core.WritableSignal<Date | null>;
    /** Which sub-view is currently shown. Cycles `day → month → year` on header click. */
    protected readonly viewMode: _angular_core.WritableSignal<"day" | "month" | "year">;
    protected readonly today: _angular_core.Signal<Date>;
    protected readonly weekdayNames: _angular_core.Signal<readonly string[]>;
    protected readonly monthsView: _angular_core.Signal<readonly string[]>;
    /** 12-year window centered on the floor-aligned decade containing `viewDate`. */
    protected readonly yearsView: _angular_core.Signal<readonly number[]>;
    protected readonly headerLabel: _angular_core.Signal<string>;
    /** 6×7 day grid covering the current month plus spillover. */
    protected readonly weeks: _angular_core.Signal<readonly (readonly Date[])[]>;
    protected readonly classes: _angular_core.Signal<string>;
    constructor();
    /** Header `‹` button — steps by month / year / decade based on the active view. */
    protected prev(): void;
    /** Header `›` button — steps by month / year / decade based on the active view. */
    protected next(): void;
    /** Header label click — zooms out (`day → month → year`). No-op at year view. */
    protected onLabelClick(): void;
    protected onMonthSelect(monthIdx: number): void;
    protected onYearSelect(year: number): void;
    private stepViewDate;
    protected isToday(date: Date): boolean;
    protected isOutOfMonth(date: Date): boolean;
    protected isSelected(date: Date): boolean;
    protected isInRange(date: Date): boolean;
    protected isInRangePreview(date: Date): boolean;
    protected isFocused(date: Date): boolean;
    protected isDisabled(date: Date): boolean;
    protected isMonthCurrent(monthIdx: number): boolean;
    protected isMonthSelected(monthIdx: number): boolean;
    protected isMonthDisabled(monthIdx: number): boolean;
    protected isYearCurrent(year: number): boolean;
    protected isYearSelected(year: number): boolean;
    protected isYearDisabled(year: number): boolean;
    protected onCellClick(date: Date): void;
    protected onCellEnter(date: Date): void;
    protected onCellLeave(): void;
    private applyRangeClick;
    protected onKeyDown(event: KeyboardEvent): void;
    private focusActiveCell;
    /** Used by the template's `track` expression. */
    protected trackByTime(_: number, date: Date): number;
    static ɵfac: _angular_core.ɵɵFactoryDeclaration<WrCalendar, never>;
    static ɵcmp: _angular_core.ɵɵComponentDeclaration<WrCalendar, "wr-calendar", never, { "mode": { "alias": "mode"; "required": false; "isSignal": true; }; "date": { "alias": "date"; "required": false; "isSignal": true; }; "range": { "alias": "range"; "required": false; "isSignal": true; }; "min": { "alias": "min"; "required": false; "isSignal": true; }; "max": { "alias": "max"; "required": false; "isSignal": true; }; "dateFilter": { "alias": "dateFilter"; "required": false; "isSignal": true; }; "disabled": { "alias": "disabled"; "required": false; "isSignal": true; }; }, { "date": "dateChange"; "range": "rangeChange"; }, never, never, true, never>;
}

export { WrCalendar };
export type { WrCalendarMode, WrCalendarRange };