import { db } from "@/lib/db";

export type SyncTrigger = "manual" | "webhook" | "scheduled" | "source-created";

/** Queue one pull per source at a time. Returns true only when a new job was created. */
export function queuePull(sourceId: number, trigger: SyncTrigger, payload: unknown = {}) {
  const result = db.prepare(`
    INSERT INTO sync_jobs(source_id,kind,payload_json,trigger)
    SELECT ?, 'pull', ?, ?
    WHERE NOT EXISTS (
      SELECT 1 FROM sync_jobs
      WHERE source_id=? AND kind='pull' AND status IN ('queued','running')
    )
  `).run(sourceId, JSON.stringify(payload), trigger, sourceId);
  return result.changes === 1;
}