import { Temporal } from '@js-temporal/polyfill';
import { type Dayjs } from 'dayjs';
import type { DataFieldSurface } from 'openxiangda-contracts/browser';
export interface DateTimeConstraints {
    timeZone?: string;
    min?: string;
    max?: string;
    minuteStep?: number;
    /** Picker assistance only. ISO weekday: Monday 1 through Sunday 7. */
    disabledWeekdays?: readonly number[];
    /** Derived from the field declaration, independent of the wall-time step. */
    instantPrecision?: 'minute';
}
export declare function fieldDateTimeConstraints(field: Pick<DataFieldSurface, 'type' | 'timePrecision'>, input: DateTimeConstraints): DateTimeConstraints;
export declare function instantText(value: unknown): string;
export declare function validateDateTimeConstraints(input: DateTimeConstraints): DateTimeConstraints;
export declare function instantToWall(value: unknown, timeZone: string): Temporal.PlainDateTime;
export declare function wallToInstant(value: Temporal.PlainDateTime, timeZone: string): Temporal.Instant;
/** UTC Dayjs carries wall fields only inside the generated picker. */
export declare function wallCarrier(value: Temporal.PlainDateTime): Dayjs;
export declare function carrierWall(value: Dayjs): Temporal.PlainDateTime;
export declare function zonedInputResult(value: Temporal.PlainDateTime, timeZone: string, constraints: DateTimeConstraints): {
    value?: string;
    error?: string;
};
export declare function nowWall(timeZone: string, constraints?: DateTimeConstraints): Temporal.PlainDateTime;
/** Picker columns share emit's instant/step/DST semantics. Computation is bounded
 * to the displayed day and cached per requested minute for this render. */
export declare function disabledZonedTime(day: Temporal.PlainDate, zone: string, constraints: DateTimeConstraints): {
    disabledHours: () => number[];
    disabledMinutes: (h: number) => number[];
    disabledSeconds: (h: number, m: number) => number[];
};
export declare function dateOptions(center: Temporal.PlainDateTime, zone: string, min?: string, max?: string): {
    label: string;
    value: string;
}[];
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