import {
  DfInteractiveBaseConfig,
  DfOptions,
  VerticalLayout,
  HorizontalLayout
} from '@allianz/taly-core/dynamic-form';

/**
 * The value to use for the `type` attribute of checkbox formfield configs.
 */
export const DfCheckboxTypeName = 'CHECKBOX';

/**
 * The value to use for the `type` attribute of checkbox group formfield configs.
 */
export const DfCheckboxGroupTypeName = 'CHECKBOX_GROUP';

/**
 * Base configuration interface for both single checkbox and checkbox group components
 */
export interface DfCheckboxBaseConfig extends DfInteractiveBaseConfig {
  /**
   * This field's label.
   * It's translatable by default and supports string interpolation.
   * @examples ["My label", "My label {$['bb-pgr-simple'].person.firstName}"]
   */
  label: string;

  /**
   * Sets the checkbox label size to 'small'. The default size is 'large'.
   * @default false
   */
  labelSizeSmall?: boolean;
}

/**
 * Configuration for a single checkbox component
 */
export interface DfCheckboxConfig extends DfCheckboxBaseConfig {
  /**
   * Specifies the type of the field as `CHECKBOX`.
   */
  type: typeof DfCheckboxTypeName;
}

/**
 * Configuration for a checkbox group component
 */
export interface DfCheckboxGroupConfig extends DfCheckboxBaseConfig {
  /**
   * Specifies the type of the field as `CHECKBOX_GROUP`.
   */
  type: typeof DfCheckboxGroupTypeName;

  /**
   * The options for the checkbox group. Can be either:
   * 1. A hardcoded array of objects for direct display. Each object must have a "label" and "value".
   * 2. A string expression used by an option provider service to dynamically fetch options.
   *
   * @examples [[{"label": "The first option", "value": "1"}], "$.myExpression"]
   */
  options: DfOptions[] | string;

  /**
   * The layout configuration for the checkbox group.
   * @default { optionsColumnSpan: 4, horizontal: false }
   */
  layout?: VerticalLayout | HorizontalLayout;
}

export const CheckboxLabelSize = {
  Small: 'small',
  Large: 'large'
} as const;
export type CheckboxLabelSize = (typeof CheckboxLabelSize)[keyof typeof CheckboxLabelSize];