import { inArray } from 'drizzle-orm';

import { db } from '@/lib/db';
import { user } from '@/lib/db/schema/users';
import { searchAuditLogs } from '@/lib/services/audit-search.service';

/**
 * Shared loader for the per-entity Activity tab. Wraps `searchAuditLogs`
 * with actor-email resolution so each row can render `who did what`.
 *
 * Tenant gate happens at the API route — this service trusts the caller
 * to pass an entityId that belongs to `portId`.
 */
export async function loadEntityActivity(args: {
  portId: string;
  entityType: string;
  entityId: string;
  limit?: number;
}) {
  const { rows } = await searchAuditLogs({
    portId: args.portId,
    entityType: args.entityType,
    entityId: args.entityId,
    limit: args.limit ?? 50,
  });

  const userIds = Array.from(
    new Set(rows.map((r) => r.userId).filter((u): u is string => Boolean(u))),
  );
  const userRows = userIds.length
    ? await db
        .select({ id: user.id, email: user.email, name: user.name })
        .from(user)
        .where(inArray(user.id, userIds))
    : [];
  const userMap = new Map(userRows.map((u) => [u.id, u]));

  return rows.map((r) => ({
    ...r,
    actor: r.userId ? (userMap.get(r.userId) ?? null) : null,
  }));
}