import type { Context } from "@earendil-works/chord";
import { LiveDoc, type ToolExecutionApi } from "@earendil-works/pi-durable";

/** Record when execution starts independently of renderer-specific progress details. */
export async function startTool(api: ToolExecutionApi, context: Context): Promise<void> {
  const startedAt = Date.now();
  await api.commit(async (tx) => {
    const live = await tx.doc(LiveDoc, api.conversationId);
    const slot = live.tools?.find((slot) => slot.callId === api.callId);
    // pi-durable does not yet record a wall-clock start time on the slot
    if (slot) Object.assign(slot, { startedAt });
  }, context);
}