import { matchesKey } from '@earendil-works/pi-tui';

/** The `tui.select.*` keybinding ids the adapter panels resolve. */
export type PanelSelectKeybinding = 'tui.select.up' | 'tui.select.down' | 'tui.select.confirm';

/** Structural subset of pi-tui's `KeybindingsManager` (which satisfies it). */
export interface PanelKeybindings {
  matches(data: string, keybinding: PanelSelectKeybinding): boolean;
}

/**
 * Key matchers for list navigation: user's `tui.select.*` bindings when a
 * manager is provided, otherwise the previous hardcoded defaults.
 */
export interface PanelKeys {
  selectUp(data: string): boolean;
  selectDown(data: string): boolean;
  selectConfirm(data: string): boolean;
}

export function createPanelKeys(keybindings?: PanelKeybindings): PanelKeys {
  if (keybindings) {
    return {
      selectUp: (data) => keybindings.matches(data, 'tui.select.up'),
      selectDown: (data) => keybindings.matches(data, 'tui.select.down'),
      selectConfirm: (data) => keybindings.matches(data, 'tui.select.confirm'),
    };
  }

  return {
    selectUp: (data) => matchesKey(data, 'up'),
    selectDown: (data) => matchesKey(data, 'down'),
    selectConfirm: (data) => matchesKey(data, 'return'),
  };
}