import { Module } from '@nestjs/common';
import { ConfigModule } from '@nestjs/config';
import { ServeStaticModule } from '@nestjs/serve-static';
import { existsSync } from 'fs';
import { join } from 'path';
import { PrismaModule } from './prisma/prisma.module';
import { MailModule } from './mail/mail.module';
import { PushModule } from './push/push.module';
import { AuthModule } from './auth/auth.module';
import { KcModule } from './kc/kc.module';
import { GemeindeModule } from './gemeinde/gemeinde.module';
import { TeamerModule } from './teamer/teamer.module';
import { OnboardingModule } from './onboarding/onboarding.module';
import { WahlModule } from './wahl/wahl.module';
import { FilesModule } from './files/files.module';
import { ChatModule } from './chat/chat.module';
import { SyncModule } from './sync/sync.module';

// Prefer the Flutter web build (single entry point at :3000, incl. the OIDC
// redirect path /v1/auth/callback via SPA fallback). Falls back to the plain
// interim client if the Flutter build hasn't been produced yet.
const flutterWeb = join(__dirname, '..', '..', 'client', 'app', 'build', 'web');
const interimWeb = join(__dirname, '..', '..', 'client', 'web');
const webRoot =
  process.env.WEB_CLIENT_DIR ?? (existsSync(flutterWeb) ? flutterWeb : interimWeb);

@Module({
  imports: [
    ConfigModule.forRoot({ isGlobal: true }),
    // Static web client; the REST API lives under /api (see main.ts) so it
    // never collides. Unmatched non-file paths fall back to index.html so the
    // client-side router owns routes like /v1/auth/callback.
    ServeStaticModule.forRoot({
      rootPath: webRoot,
      exclude: ['/api*'],
    }),
    PrismaModule,
    MailModule,
    PushModule,
    SyncModule,
    AuthModule,
    KcModule,
    GemeindeModule,
    TeamerModule,
    OnboardingModule,
    WahlModule,
    FilesModule,
    ChatModule,
  ],
})
export class AppModule {}