import { ModuleRegistryService } from '../module-registry/module-registry.service';
import type { PrismaService } from '../prisma/prisma.service';

/**
 * Seeds the tender-radar module into the module registry.
 *
 * Called during TendersModule initialization to ensure the
 * "tender-radar" module record exists in the database (CONFIG-01).
 *
 * isSystem: true registers the module in the registry but does NOT
 * auto-activate it per tenant. Admin must activate via Marketplace UI.
 */
export async function seedTendersModule(
  moduleRegistryService: ModuleRegistryService,
): Promise<void> {
  await moduleRegistryService.seedModule({
    slug: 'tender-radar',
    name: 'Ausschreibungs-Radar',
    version: '1.0.0',
    category: 'procurement',
    description: {
      de: 'Deutsche Ausschreibungen automatisch erfassen und durchsuchen',
      en: 'Automatically track and search German public tenders',
    },
    isSystem: true,
  });
}

/** The one genuinely national/global RSS source (RESEARCH.md Open Question 3). */
export const SERVICE_BUND_RSS_URL =
  'https://www.service.bund.de/Content/Globals/Functions/RSSFeed/RSSGenerator_Ausschreibungen.xml';

/**
 * Seeds the single default-active service.bund.de RSS feed row — the one
 * genuinely national/global RSS source (RESEARCH.md Open Question 3,
 * Phase 14, Plan 02, D-14). subreport-elvis has no single canonical URL
 * (per-municipality instances, RESEARCH.md Pitfall 2) — deliberately ZERO
 * subreport-elvis rows are ever seeded; users add the municipality feeds
 * relevant to them via the RSS-Feeds UI (Plan 14-02 Task 3).
 *
 * Extracted out of `TendersModule.onModuleInit` (Phase 17, Plan 02, Task 3)
 * — same "logic lives in a plain testable function, the module's lifecycle
 * hook only wraps it in try/catch + logging" pattern as `seedTendersModule`
 * above — so the idempotency behavior below can be exercised directly by a
 * unit test instead of only through a full Nest bootstrap.
 *
 * Phase 17, Plan 02 (D-02): "upsert on url" stopped working when the
 * unique index moved to `(userId, url)` — Prisma's generated
 * compound-unique input type requires `userId` as a plain `string` (not
 * `string | null | undefined`), so a platform-wide row (`userId = null`)
 * can never be addressed through it. This function instead FINDS a
 * platform-wide row with this url first, and only creates one if none
 * exists — an ordinary equality condition has no such requirement. Still
 * idempotent across repeated app starts (proven in tenders.seed.spec.ts).
 */
export async function seedServiceBundRssFeed(prisma: PrismaService): Promise<void> {
  const existing = await prisma.tenderRssFeedSource.findFirst({
    where: { userId: null, url: SERVICE_BUND_RSS_URL },
  });
  if (existing) return;

  await prisma.tenderRssFeedSource.create({
    data: {
      url: SERVICE_BUND_RSS_URL,
      label: 'service-bund',
      isActive: true,
    },
  });
}