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

interface WrHeatmapDatum {
    /** ISO date string (`YYYY-MM-DD`) or `Date`. */
    readonly date: string | Date;
    readonly value: number;
}

interface Cell {
    readonly iso: string;
    readonly value: number;
    readonly intensity: number;
    readonly week: number;
    readonly day: number;
}
/**
 * GitHub-style year-grid heatmap. One column per ISO week, one row per
 * weekday — cells coloured by `value` relative to the data set's max.
 *
 * @example
 * ```html
 * <wr-calendar-heatmap [data]="contributions" />
 * <wr-calendar-heatmap [data]="data" [endDate]="today" [weeks]="26" color="#10b981" />
 * ```
 *
 * @see https://ngwr.dev/components/calendar-heatmap
 */
declare class WrCalendarHeatmap {
    readonly data: _angular_core.InputSignal<readonly WrHeatmapDatum[]>;
    /** Last day to render. @default today */
    readonly endDate: _angular_core.InputSignal<string | Date | null>;
    /** Number of weeks (columns) to render. @default 53 */
    readonly weeks: _angular_core.InputSignalWithTransform<number, unknown>;
    /** Cell side in CSS pixels. @default 11 */
    readonly cellSize: _angular_core.InputSignalWithTransform<number, unknown>;
    /** Pixel gap between cells. @default 2 */
    readonly cellGap: _angular_core.InputSignalWithTransform<number, unknown>;
    /** Cell fill colour at full intensity. @default primary */
    readonly color: _angular_core.InputSignal<string>;
    /** Background colour for zero-value days. @default light tint */
    readonly emptyColor: _angular_core.InputSignal<string>;
    /** Show the weekday + month labels around the grid. @default true */
    readonly showLabels: _angular_core.InputSignalWithTransform<boolean, any>;
    protected readonly weekdayLabels: string[];
    protected readonly cells: _angular_core.Signal<readonly Cell[]>;
    protected readonly monthLabels: _angular_core.Signal<{
        label: string;
        week: number;
    }[]>;
    protected readonly columnCount: _angular_core.Signal<number>;
    protected colorFor(intensity: number): string;
    protected opacityFor(intensity: number): number;
    static ɵfac: _angular_core.ɵɵFactoryDeclaration<WrCalendarHeatmap, never>;
    static ɵcmp: _angular_core.ɵɵComponentDeclaration<WrCalendarHeatmap, "wr-calendar-heatmap", never, { "data": { "alias": "data"; "required": false; "isSignal": true; }; "endDate": { "alias": "endDate"; "required": false; "isSignal": true; }; "weeks": { "alias": "weeks"; "required": false; "isSignal": true; }; "cellSize": { "alias": "cellSize"; "required": false; "isSignal": true; }; "cellGap": { "alias": "cellGap"; "required": false; "isSignal": true; }; "color": { "alias": "color"; "required": false; "isSignal": true; }; "emptyColor": { "alias": "emptyColor"; "required": false; "isSignal": true; }; "showLabels": { "alias": "showLabels"; "required": false; "isSignal": true; }; }, {}, never, never, true, never>;
}

export { WrCalendarHeatmap };
export type { WrHeatmapDatum };