import { formatCompactMetric, formatDuration } from "./format.ts";

export interface ReviewStatus {
	startedAt: number;
	session: "fresh" | "resumed";
	turns?: number;
	toolCount?: number;
	tokens?: number;
	currentTool?: string;
}

export interface ElapsedStatus {
	startedAt: number;
	now: number;
	finishedAt?: number;
	review?: ReviewStatus;
}

export function formatElapsedStatus(status: ElapsedStatus): string {
	const end = status.finishedAt ?? status.now;
	const parts: Array<string | undefined> = [`Elapsed ${formatDuration(Math.max(0, end - status.startedAt))}`];
	if (status.finishedAt !== undefined) {
		parts.push("Complete");
	} else if (status.review) {
		parts.push(
			"Review",
			status.review.session,
			`review ${formatDuration(Math.max(0, status.now - status.review.startedAt))}`,
			status.review.turns !== undefined ? `${status.review.turns} turns` : undefined,
			status.review.toolCount !== undefined ? `${status.review.toolCount} tools` : undefined,
			status.review.tokens !== undefined ? `${formatCompactMetric(status.review.tokens)} tokens` : undefined,
			status.review.currentTool,
		);
	} else {
		parts.push("Main");
	}
	return parts.filter(Boolean).join(" · ");
}