import type { RunState } from "./status.ts";

export function revivalPrompt(name: string, state: RunState, message: string): string {
	return (
		"You are continuing a previous run of this task.\n\n" +
		`Agent: ${name} (previous attempt ended ${state})\n\n` +
		"Your session history above is your own prior work. The original process is\n" +
		"no longer running. Continue from where you left off.\n\n" +
		"Follow-up from the orchestrator:\n" +
		message
	);
}

export function assertResumable(state: RunState): void {
	if (state === "stopped") throw new Error("stopped runs cannot be resumed; delegate a new run");
	if (state !== "paused" && state !== "complete" && state !== "timedOut" && state !== "failed") {
		throw new Error(`run in state '${state}' cannot be resumed`);
	}
}