import { type PartialWithUndefined } from '@augment-vir/common';
import { type FullDate } from 'date-vir';
import { type HtmlInterpolation } from 'element-vir';
import { type ViraIconSvg } from '../icons/icon-svg.js';
import { type ViraSelectOption } from './vira-select-option.js';
/**
 * Form field types for {@link ViraFormField}.
 *
 * @category Internal
 */
export declare enum ViraFormFieldType {
    Text = "text",
    /** Allows auto complete for _existing_ passwords used on this website (for login). */
    ExistingPassword = "existing-password",
    /** Allows auto complete for _new_ passwords used on this website (for login). */
    NewPassword = "new-password",
    /** Uses a password input without any attributes applied for auto complete hints. */
    PlainPassword = "plain-password",
    Email = "email",
    Number = "number",
    Select = "select",
    Checkbox = "checkbox",
    TextArea = "text-area",
    Date = "date"
}
/**
 * {@link ViraFormField} properties that are shared between all field types.
 *
 * @category Internal
 */
export type CommonViraFormFields = {
    label: string;
} & PartialWithUndefined<{
    /** Applies a test id to the form field element. */
    testId: string;
    /**
     * When `true`, visually indicates the form field as required and affects form validation.
     *
     * @default false
     */
    isRequired: boolean;
    /**
     * When `true`, marks this form field element with error styling.
     *
     * @default false
     */
    hasError: boolean;
    /**
     * When `true`, hides this form field entirely.
     *
     * @default false
     */
    isHidden: boolean;
    /**
     * When `true`, continues showing the form field but prevents edits.
     *
     * @default false
     */
    isDisabled: boolean;
}>;
/**
 * An individual form field for {@link ViraFormFields}.
 *
 * @category Internal
 */
export type ViraFormField = ({
    type: ViraFormFieldType.Text | ViraFormFieldType.ExistingPassword | ViraFormFieldType.NewPassword | ViraFormFieldType.PlainPassword | ViraFormFieldType.Email;
    value: string | undefined;
} & PartialWithUndefined<{
    placeholder: string;
    icon: ViraIconSvg;
    isUsername: boolean;
}> & CommonViraFormFields) | ({
    type: ViraFormFieldType.Select;
    value: string | undefined;
    options: ReadonlyArray<Readonly<ViraSelectOption>>;
} & PartialWithUndefined<{
    placeholder: string;
    icon: ViraIconSvg;
}> & CommonViraFormFields) | ({
    type: ViraFormFieldType.Checkbox;
    value: boolean | undefined;
    /**
     * Label for the checkbox. Unlike other field types, this accepts arbitrary HTML so the
     * checkbox's label slot can be filled with rich content.
     */
    label: HtmlInterpolation;
} & PartialWithUndefined<{
    /** The checkbox will be filled with a form selection color when it is checked. */
    fillWhenChecked: boolean;
    /** The checkbox will be filled with a form error color when it is unchecked. */
    fillWhenUnchecked: boolean;
}> & Omit<CommonViraFormFields, 'label'>) | ({
    type: ViraFormFieldType.Number;
    value: number | undefined;
} & PartialWithUndefined<{
    placeholder: string;
    icon: ViraIconSvg;
    min: number;
    max: number;
    step: number;
}> & CommonViraFormFields) | ({
    type: ViraFormFieldType.TextArea;
    value: string | undefined;
} & PartialWithUndefined<{
    placeholder: string;
    rows: number;
    preventResize: boolean;
}> & CommonViraFormFields) | ({
    type: ViraFormFieldType.Date;
    value: FullDate | undefined;
} & PartialWithUndefined<{
    /** Lower bound for selectable dates. Defaults to `1800-01-01` when omitted. */
    min: FullDate;
    /** Upper bound for selectable dates. Defaults to 10 years from now when omitted. */
    max: FullDate;
    /** Timezone used to interpret the selected date. Defaults to the user's timezone. */
    timezone: string;
}> & CommonViraFormFields);
/**
 * A collection of form fields for `ViraForm`.
 *
 * @category Internal
 */
export type ViraFormFields = Record<string, ViraFormField>;
/**
 * Appends a `'*'` to a label if it exist sand if it is required.
 *
 * @category Internal
 */
export declare function applyRequiredLabel(label: string | undefined, isRequired: boolean): string | undefined;
/**
 * Checks if all the {@link ViraFormField} entries in a given {@link ViraFormFields} are valid through
 * the following checks:
 *
 * - Checks that required fields are provided (not `undefined`)
 * - Ignores hidden fields
 *
 * @category Internal
 */
export declare function areFormFieldsValid(formFields: Readonly<ViraFormFields>): boolean;