/**
 * pi-rewind — UI helpers
 *
 * Footer status and notifications.
 */

import type { ExtensionContext } from "@earendil-works/pi-coding-agent";
import type { RewindState } from "./state.js";

const STATUS_KEY = "rewind";

/** Update footer status with checkpoint count */
export function updateStatus(state: RewindState, ctx: ExtensionContext): void {
  if (!ctx.hasUI) return;

  if (!state.gitAvailable) {
    ctx.ui.setStatus(STATUS_KEY, undefined);
    return;
  }

  const count = state.checkpoints.size;
  if (count <= 0) {
    ctx.ui.setStatus(STATUS_KEY, undefined);
    return;
  }
  ctx.ui.setStatus(STATUS_KEY, ctx.ui.theme.fg("dim", `${count} ckpt`));
}

/** Clear status */
export function clearStatus(ctx: ExtensionContext): void {
  if (!ctx.hasUI) return;
  ctx.ui.setStatus(STATUS_KEY, undefined);
}