/**
 * Notification text for each trigger.
 *
 * Pure string builders: the register module owns when to fire, this owns what
 * the notification says. Every argument that can carry model- or user-authored
 * text is sanitized here, so no control character reaches {@link sendNotification}
 * from a turn, a prompt title, or a job label.
 */

import { basename } from "node:path";
import type { JobFinishedEvent } from "../../../lib/events.ts";
import { sanitizeLine } from "../../../lib/format.ts";

/** A short session label, so concurrent unattended runs can be told apart. */
export function sessionLabel(name: string | undefined, cwd: string): string {
	const named = sanitizeLine(name ?? "");
	if (named) return named;
	const folder = basename(cwd.replace(/[\\/]+$/, ""));
	return sanitizeLine(folder) || "session";
}

/** Body for a settled turn: Pi finished and waits for the next message. */
export function formatTurnBody(session: string): string {
	return `Turn finished · ${session}`;
}

/** Body for a prompt the agent opened mid-run: it is asking for input. */
export function formatInputBody(kind: string, title: string | undefined, session: string): string {
	const detail = sanitizeLine(title ?? "");
	return `Waiting for input (${sanitizeLine(kind)})${detail ? `: ${detail}` : ""} · ${session}`;
}

/** Body for a finished background job. */
export function formatJobBody(job: JobFinishedEvent): string {
	const verb = job.status === "failed" ? "failed" : job.status === "killed" ? "was killed" : "finished";
	const code = job.status === "failed" && job.exitCode !== null ? ` (${job.exitCode})` : "";
	const label = sanitizeLine(job.label);
	return `Job ${job.id} ${verb}${code}${label ? ` · ${label}` : ""}`;
}