import { Logger, Module, OnModuleInit } from '@nestjs/common';
import { InboxModule } from '../inbox/inbox.module';
import { ModuleRegistryModule } from '../module-registry/module-registry.module';
import { ModuleRegistryService } from '../module-registry/module-registry.service';
import { PrismaService } from '../prisma/prisma.service';
import { SettingsModule } from '../settings/settings.module';
import { CosinexAdapter } from './adapters/cosinex.adapter';
import { DoeOpenDataAdapter } from './adapters/doe-opendata.adapter';
import { EmailAlertAdapter } from './adapters/email-alert.adapter';
import { NetServerAdapter } from './adapters/netserver.adapter';
import { RssAdapter } from './adapters/rss.adapter';
import { SourceRegistry } from './source-registry';
import { seedServiceBundRssFeed, seedTendersModule } from './tenders.seed';
import { TenderDedupService } from './tender-dedup.service';
import { TenderFingerprintBackfillService } from './tender-fingerprint-backfill.service';
import { TenderDigestScheduler } from './tender-digest.scheduler';
import { TenderEmailConfigService } from './tender-email-config.service';
import { TenderIngestionService } from './tender-ingestion.service';
import { TenderMailService } from './tender-mail.service';
import { TenderMatchingService } from './tender-matching.service';
import { TenderNormalizerService } from './tender-normalizer.service';
import { TenderNotificationPrefService } from './tender-notification-pref.service';
import { TenderRssFeedSourceService } from './tender-rss-feed.service';
import { TenderSavedSearchService } from './tender-saved-search.service';
import { TenderSchedulerService } from './tender-scheduler.service';
import { TenderTriageService } from './tender-triage.service';
import { TendersController } from './tenders.controller';

/**
 * NestJS module for the Ausschreibungs-Radar feature.
 *
 * Wave 2 registered the module in the marketplace and seeded the
 * singleton DÖE poll config so the shared poll is admin-drivable. Plan 03
 * added the DÖE source adapter + normalizer (parse+map core of
 * INGEST-01/SCHEMA-01). Plan 04 added ingestion orchestration
 * (TenderIngestionService: day-cursor gate, SCHEMA-02 change detection,
 * D-05 retention) and the shared global scheduler. This plan (05) wires
 * TendersController: the global (ModuleGuard-gated, not tenant-scoped)
 * read surface plus the Roles-guarded admin source-config routes that
 * live-apply to TenderSchedulerService. Plan 05 adds TenderTriageService
 * (per-user gelesen/ungelesen + Favorit, UI-03/04) as a further provider.
 *
 * PrismaModule is global (no explicit import needed).
 *
 * Plan 06 adds TenderSavedSearchService (per-user Suchprofile, FILTER-06)
 * as a further provider — same userId-scoping convention as
 * TenderTriageService, no forTenant()/RLS (Pitfall 4).
 *
 * Phase 12, Plan 01 (NOTIFY-03) adds TenderMatchingService: injected into
 * TenderIngestionService and called at the end of pollDueSources with only
 * the genuinely-new tender IDs of the current tick (delta-only matching,
 * D-07) — reuses buildTenderWhere against every active TenderSavedSearch
 * profile and upserts TenderMatch rows (matched-vs-notified state, D-06).
 *
 * Phase 12, Plan 02 (NOTIFY-01/04) adds the digest delivery channel:
 * TenderMailService (a structural DkvMailService clone — fresh nodemailer
 * transport per send via SettingsService.getDecryptedSmtpConfig(tenantId),
 * never a cached/global mailer, D-08) and TenderDigestScheduler (a SINGLE
 * global @nestjs/schedule cron, mirroring TenderSchedulerService's
 * poll-once-fan-out-many pattern rather than DkvSchedulerService's
 * single-tenant pattern — Pitfall 1). SettingsModule is imported so
 * TenderMailService can inject SettingsService. ScheduleModule.forRoot()
 * is already registered globally in AppModule — not re-imported here.
 *
 * Phase 12, Plan 04 (NOTIFY-01/02) adds TenderNotificationPrefService: a
 * per-user digestInterval CRUD service (same userId-scoping convention as
 * TenderSavedSearchService, no forTenant()/RLS) backing the new GET/PUT
 * notification-pref controller routes. instantAlert (NOTIFY-02) needed no
 * new provider — it rides the existing TenderSavedSearchService create/
 * update path via the extended saved-search DTOs.
 *
 * Seeds itself into the module registry on application startup via
 * OnModuleInit lifecycle hook — same pattern as DkvModule.
 *
 * Phase 13, Plan 03 (SCHEMA-03): adds `SourceRegistry` (fan-out lookup +
 * INGEST-07 denylist gate, Plan 13-02) and `TenderDedupService`
 * (three-tier cross-source dedup resolver, Plan 13-03 Task 1) as
 * providers. `onModuleInit` registers every known source adapter with the
 * registry via `SourceRegistry.register()` BEFORE the scheduler's first
 * tick can run — this is the DI-boot-time hook where the denylist gate
 * (D-06) structurally applies. `DoeOpenDataAdapter` is registered here;
 * this is deliberately the ONE place that grows an additional
 * `registry.register(...)` call as 13-04 (NetServer) and 13-05 (cosinex)
 * add their adapters in later waves — this plan is Wave 2's sole writer
 * of tenders.module.ts, so those additions are purely additive follow-ups.
 *
 * Phase 13, Plan 04 (INGEST-02): adds `NetServerAdapter` (config-driven,
 * serves tender24/lhs-vpbw/vergabe.landbw — none denylisted) as a provider
 * and registers it alongside `DoeOpenDataAdapter` in `onModuleInit`. A
 * `TenderSourcePollConfig` row is seeded with `isActive: false` — this
 * plan does not force-activate the new source; activation is an
 * admin/seed decision (Phase 14 UI), matching D-02's "framework ready,
 * activation deferred" stance.
 *
 * Phase 13, Plan 05 (INGEST-03): adds `CosinexAdapter` — a SEPARATE
 * single-portal HTML adapter for the cosinex/DTVP satellite (cosinex-dtvp
 * is not denylisted) — as a provider and registers it alongside
 * `DoeOpenDataAdapter`/`NetServerAdapter` in `onModuleInit`, the third and
 * final Wave-4 additive `registry.register(...)` call. Its
 * `TenderSourcePollConfig` row is likewise seeded with `isActive: false`
 * (D-02: activation is a later admin/seed decision, Phase 14 UI).
 *
 * Phase 14, Plan 02 (INGEST-04): adds `RssAdapter` (registered alongside
 * the existing adapters — `rss` is not denylisted) and
 * `TenderRssFeedSourceService` (admin CRUD for the global feed list,
 * D-14). Unlike ai-netserver/cosinex-dtvp, the `rss` `TenderSourcePollConfig`
 * seed is `isActive: true` with `pollGranularity: 'tick'` (D-15) —
 * service.bund.de is seeded as a default-active `TenderRssFeedSource` row
 * (RESEARCH.md Open Question 3), so RSS ingestion is live out of the box,
 * not "framework ready, activation deferred" like the Phase 13 sources.
 *
 * Phase 14, Plan 03 (INGEST-05): adds `EmailAlertAdapter` (registered
 * alongside the existing adapters — `email-alert` is not denylisted) and
 * `TenderEmailConfigService` (per-tenant admin CRUD for the alert mailbox
 * config, D-06/D-07). `InboxModule` is imported so the
 * adapter/service can reach the mailbox providers (credential encryption comes
 * from the global CryptoModule)
 * and `ImapProvider`/`ExchangeInboxProvider` (shared connection mechanics,
 * D-01) — the same imports DkvModule already uses for its own, separate
 * mailbox config (D-03). Unlike `rss`, the `email-alert`
 * `TenderSourcePollConfig` seed is `isActive: false` with
 * `pollGranularity: 'tick'` (D-15): the framework is ready, but activation
 * requires an admin to actually configure a mailbox first — there is no
 * safe default mailbox to seed (unlike RSS's service.bund.de default).
 */
@Module({
  imports: [ModuleRegistryModule, SettingsModule, InboxModule],
  controllers: [TendersController],
  providers: [
    DoeOpenDataAdapter,
    NetServerAdapter,
    CosinexAdapter,
    RssAdapter,
    EmailAlertAdapter,
    SourceRegistry,
    TenderNormalizerService,
    TenderDedupService,
    TenderIngestionService,
    // WINDOWS.md #11, Task 3: MUSS vor TenderSchedulerService stehen — Nest
    // ruft die OnApplicationBootstrap-Haken eines Moduls in der Reihenfolge
    // der Anbieterliste auf, und die Fingerabdruck-Nachrechnung soll fertig
    // sein, bevor der Poll-Cron zu laufen beginnt. Beim Umsortieren dieser
    // Liste bitte diese Reihenfolge erhalten.
    TenderFingerprintBackfillService,
    TenderSchedulerService,
    TenderTriageService,
    TenderSavedSearchService,
    TenderMatchingService,
    TenderMailService,
    TenderDigestScheduler,
    TenderNotificationPrefService,
    TenderRssFeedSourceService,
    TenderEmailConfigService,
  ],
})
export class TendersModule implements OnModuleInit {
  private readonly logger = new Logger(TendersModule.name);

  constructor(
    private readonly moduleRegistryService: ModuleRegistryService,
    private readonly prisma: PrismaService,
    private readonly sourceRegistry: SourceRegistry,
    private readonly doeAdapter: DoeOpenDataAdapter,
    private readonly netServerAdapter: NetServerAdapter,
    private readonly cosinexAdapter: CosinexAdapter,
    private readonly rssAdapter: RssAdapter,
    private readonly emailAlertAdapter: EmailAlertAdapter,
  ) {}

  async onModuleInit(): Promise<void> {
    try {
      // D-06/INGEST-07: registration itself is the denylist-gate enforcement
      // point — SourceRegistry.register() throws for any adapter serving a
      // denylisted portal. DoeOpenDataAdapter, NetServerAdapter,
      // CosinexAdapter, RssAdapter, and EmailAlertAdapter are all
      // legitimate (none of tender24/lhs-vpbw/vergabe.landbw/cosinex-dtvp/
      // rss/email-alert are on the denylist). Note: RssAdapter's
      // `portals: ['rss']` is a SYMBOLIC placeholder — the actual
      // admin-supplied feed hostnames are NOT covered by this gate at all
      // (RESEARCH.md Pitfall 3); that runtime check lives in
      // TenderRssFeedSourceService instead (D-14). EmailAlertAdapter's
      // `portals: ['email-alert']` is likewise symbolic — mailbox hosts
      // are per-tenant admin input, not a portal the denylist gate models.
      this.sourceRegistry.register(this.doeAdapter);
      this.sourceRegistry.register(this.netServerAdapter);
      this.sourceRegistry.register(this.cosinexAdapter);
      this.sourceRegistry.register(this.rssAdapter);
      this.sourceRegistry.register(this.emailAlertAdapter);
      this.logger.log(
        `Registered source adapters: ${this.sourceRegistry
          .activeAdapters()
          .map((a) => a.sourceType)
          .join(', ')}`,
      );
    } catch (error) {
      this.logger.error('Failed to register tender source adapters', error);
    }

    try {
      await seedTendersModule(this.moduleRegistryService);
      this.logger.log('Ausschreibungs-Radar module seeded in registry');
    } catch (error) {
      this.logger.error('Failed to seed Ausschreibungs-Radar module', error);
    }

    try {
      // Singleton poll config — global, RLS-exempt (D-03). Do NOT use
      // forTenant() here: this row is shared platform-wide, not per-tenant.
      // isActive defaults true so the platform-global DÖE poll (D-04
      // hourly) runs regardless of tenant activation; the day-cursor
      // gate (Plan 04) makes repeated ticks idempotent.
      await this.prisma.tenderSourcePollConfig.upsert({
        where: { sourceType: 'doe-opendata' },
        update: {},
        create: {
          sourceType: 'doe-opendata',
          pollIntervalMin: 60,
          isActive: true,
        },
      });
      this.logger.log('doe-opendata poll config seeded');
    } catch (error) {
      this.logger.error('Failed to seed doe-opendata poll config', error);
    }

    try {
      // Phase 13, Plan 04 (INGEST-02): seed the ai-netserver poll config
      // row so it is admin-drivable, but isActive defaults false — this
      // plan builds and tests the adapter, it does not force-activate live
      // polling of the 3 NetServer portals (D-02: framework ready,
      // activation is a later admin/seed decision, Phase 14 UI).
      await this.prisma.tenderSourcePollConfig.upsert({
        where: { sourceType: 'ai-netserver' },
        update: {},
        create: {
          sourceType: 'ai-netserver',
          pollIntervalMin: 60,
          isActive: false,
        },
      });
      this.logger.log('ai-netserver poll config seeded (inactive)');
    } catch (error) {
      this.logger.error('Failed to seed ai-netserver poll config', error);
    }

    try {
      // Phase 13, Plan 05 (INGEST-03): seed the cosinex-dtvp poll config
      // row so it is admin-drivable, but isActive defaults false — same
      // "framework ready, activation deferred" stance as ai-netserver
      // (D-02, Phase 14 UI).
      await this.prisma.tenderSourcePollConfig.upsert({
        where: { sourceType: 'cosinex-dtvp' },
        update: {},
        create: {
          sourceType: 'cosinex-dtvp',
          pollIntervalMin: 60,
          isActive: false,
        },
      });
      this.logger.log('cosinex-dtvp poll config seeded (inactive)');
    } catch (error) {
      this.logger.error('Failed to seed cosinex-dtvp poll config', error);
    }

    try {
      // Phase 14, Plan 02 (INGEST-04, D-15): seed the rss poll config with
      // pollGranularity: 'tick' (fetched every active scheduler tick, NOT
      // gated by lastIngestedDay — see tender-ingestion.service.ts) and
      // isActive: true — unlike ai-netserver/cosinex-dtvp, RSS is live by
      // default (RESEARCH.md Open Question 3: service.bund.de is a safe,
      // genuinely national default feed, seeded below).
      await this.prisma.tenderSourcePollConfig.upsert({
        where: { sourceType: 'rss' },
        update: {},
        create: {
          sourceType: 'rss',
          pollIntervalMin: 60,
          isActive: true,
          pollGranularity: 'tick',
        },
      });
      this.logger.log("rss poll config seeded (active, pollGranularity='tick')");
    } catch (error) {
      this.logger.error('Failed to seed rss poll config', error);
    }

    try {
      // Phase 17, Plan 02 (Task 3): the actual find-then-create logic (and
      // why "upsert on url" stopped working, D-02) lives in
      // seedServiceBundRssFeed (tenders.seed.ts) now — extracted the same
      // way seedTendersModule already is, so it is a plain testable
      // function and not only reachable via a full Nest bootstrap
      // (idempotency proven in tenders.seed.spec.ts).
      await seedServiceBundRssFeed(this.prisma);
      this.logger.log('service.bund.de default RSS feed seeded (active)');
    } catch (error) {
      this.logger.error('Failed to seed service.bund.de RSS feed', error);
    }

    try {
      // Phase 14, Plan 03 (INGEST-05, D-15): seed the email-alert poll
      // config with pollGranularity: 'tick' (same tick-driven mechanism as
      // rss — no lastIngestedDay day-cursor gate) and isActive: false — no
      // tenant has configured a mailbox yet, so there is nothing to poll
      // until an admin saves a TenderEmailConfig row via the settings UI
      // (D-02: framework ready, activation deferred, same stance as
      // ai-netserver/cosinex-dtvp).
      await this.prisma.tenderSourcePollConfig.upsert({
        where: { sourceType: 'email-alert' },
        update: {},
        create: {
          sourceType: 'email-alert',
          pollIntervalMin: 60,
          isActive: false,
          pollGranularity: 'tick',
        },
      });
      this.logger.log(
        "email-alert poll config seeded (inactive, pollGranularity='tick')",
      );
    } catch (error) {
      this.logger.error('Failed to seed email-alert poll config', error);
    }
  }
}