/**
 * Push structured timeline events to vibn-frontend (Postgres via ingest API).
 * Complements PATCH output lines — enables SSE replay without polling every line.
 */
import { randomUUID } from 'crypto';

export interface IngestEventInput {
    type: string;
    payload?: Record<string, unknown>;
    ts?: string;
}

export async function ingestSessionEvents(
    vibnApiUrl: string,
    projectId: string,
    sessionId: string,
    events: IngestEventInput[]
): Promise<void> {
    if (events.length === 0) return;

    const secret = process.env.AGENT_RUNNER_SECRET ?? '';
    const base = vibnApiUrl.replace(/\/$/, '');
    const url = `${base}/api/projects/${projectId}/agent/sessions/${sessionId}/events`;

    try {
        const res = await fetch(url, {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json',
                'x-agent-runner-secret': secret,
            },
            body: JSON.stringify({
                events: events.map((e) => ({
                    clientEventId: randomUUID(),
                    ts: e.ts ?? new Date().toISOString(),
                    type: e.type,
                    payload: e.payload ?? {},
                })),
            }),
        });
        if (!res.ok) {
            const t = await res.text();
            console.warn('[ingest-events]', res.status, t.slice(0, 240));
        }
    } catch (err) {
        console.warn('[ingest-events]', err instanceof Error ? err.message : err);
    }
}