import { Inject, MiddlewareConsumer, Module, NestModule } from '@nestjs/common';
import { MulterModule } from '@nestjs/platform-express';
import * as multer from 'multer';
import * as mime from 'mime-types';
import { join } from 'path';
import { AuthMiddleware } from 'src/middleware/auth.middleware';
import { FlashMiddleware } from 'src/middleware/flash.middleware';
import { ValidateCSRFMiddleware } from 'src/middleware/validate-csrf.middleware';
import { ConfigurationModule } from 'src/modules/config/config.module';
import { UploadModule } from 'src/modules/objects/upload/upload.module';
import { UserModule } from 'src/modules/objects/user/user.module';
import { OAuth2TokenModule } from 'src/modules/objects/oauth2-token/oauth2-token.module';
import { OAuth2ClientModule } from 'src/modules/objects/oauth2-client/oauth2-client.module';
import { UserTokenModule } from 'src/modules/objects/user-token/user-token.module';
import { OAuth2Module } from '../../oauth2/oauth2.module';
import { SettingsController } from './settings.controller';
import { SettingsService } from './settings.service';
import { CSRFMiddleware } from 'src/middleware/csrf.middleware';
import { UserMiddleware } from 'src/middleware/user.middleware';
import { AuditModule } from 'src/modules/objects/audit/audit.module';
import { RequestHandler } from 'express';
import { SessionModule } from '../session/session.module';

@Module({
  controllers: [SettingsController],
  imports: [
    ConfigurationModule,
    UploadModule,
    UserModule,
    UserTokenModule,
    SessionModule,
    AuditModule,
    OAuth2Module,
    OAuth2ClientModule,
    OAuth2TokenModule,
    MulterModule.registerAsync({
      useFactory: async () => ({
        storage: multer.diskStorage({
          destination: (req, file, cb) => {
            cb(null, join(__dirname, '..', '..', '..', '..', 'uploads'));
          },
          filename: (req, file, cb) => {
            const hashTruncate = req.user.uuid.split('-')[0];
            const timestamp = Math.floor(Date.now() / 1000);
            const ext = mime.extension(file.mimetype);
            cb(null, `user-${hashTruncate}-${timestamp}.${ext}`);
          },
        }),
        limits: {
          fileSize: 1.049e7, // 10 MiB
        },
        fileFilter: (req, file, cb) => {
          if (
            !file.mimetype.startsWith('image/') ||
            file.mimetype.includes('svg')
          ) {
            return cb(new Error('Invalid file type.'), false);
          }

          cb(null, true);
        },
      }),
    }),
  ],
  providers: [SettingsService],
})
export class SettingsModule implements NestModule {
  constructor(@Inject('SESSION') private _session: RequestHandler) {}

  configure(consumer: MiddlewareConsumer) {
    consumer
      .apply(
        this._session,
        CSRFMiddleware,
        FlashMiddleware,
        UserMiddleware,
        AuthMiddleware,
        ValidateCSRFMiddleware,
      )
      .forRoutes(SettingsController);
  }
}