import { CONTEXT_MENU_STATE } from '../../constants';

export type StateProps = {
  active: number;
  activeItem: string | null;
  theme: 'light' | 'dark';
};

export enum ActionType {
  Active = 'Active',
  End = 'End',
  Theme = 'Theme',
}

export type Action =
  | { type: ActionType.Active; activeItem: string | null }
  | { type: ActionType.End }
  | { type: ActionType.Theme };

export const reducer = (state: StateProps, action: Action): StateProps => {
  switch (action.type) {
    case ActionType.Active:
      return {
        ...state,
        active: CONTEXT_MENU_STATE.ACTIVE,
        activeItem: action.activeItem,
      };
    case ActionType.End:
      return {
        ...state,
        active: CONTEXT_MENU_STATE.END,
        activeItem: null,
      };
    case ActionType.Theme:
      return {
        ...state,
        theme: state.theme === 'dark' ? 'light' : 'dark',
      };
    default:
      return state;
  }
};

export const initialState: StateProps = {
  active: 0,
  activeItem: null,
  theme: 'light',
};