import { ConfigurationModule } from '@ghostfolio/api/services/configuration/configuration.module';
import { PrismaModule } from '@ghostfolio/api/services/prisma/prisma.module';

import { Module } from '@nestjs/common';
import { MulterModule } from '@nestjs/platform-express';
import { diskStorage } from 'multer';
import { existsSync, mkdirSync } from 'node:fs';
import { join } from 'node:path';
import { v4 as uuidv4 } from 'uuid';

import { CellMappingModule } from '../cell-mapping/cell-mapping.module';
import { UploadModule } from '../upload/upload.module';
import { K1ImportController } from './k1-import.controller';
import { K1ImportService } from './k1-import.service';
import { K1AggregationService } from './k1-aggregation.service';
import { K1AllocationService } from './k1-allocation.service';
import { K1ConfidenceService } from './k1-confidence.service';
import { K1FieldMapperService } from './k1-field-mapper.service';
import { AzureExtractor } from './extractors/azure-extractor';
import { PdfParseExtractor } from './extractors/pdf-parse-extractor';
import { TesseractExtractor } from './extractors/tesseract-extractor';

const uploadDir = process.env.UPLOAD_DIR || join(process.cwd(), 'uploads');

@Module({
  controllers: [K1ImportController],
  exports: [K1ImportService],
  imports: [
    CellMappingModule,
    ConfigurationModule,
    MulterModule.register({
      limits: {
        fileSize: 25 * 1024 * 1024 // 25 MB
      },
      storage: diskStorage({
        destination: (_req, _file, cb) => {
          const now = new Date();
          const yearDir = now.getFullYear().toString();
          const monthDir = (now.getMonth() + 1).toString().padStart(2, '0');
          const subDir = join(uploadDir, yearDir, monthDir);

          if (!existsSync(subDir)) {
            mkdirSync(subDir, { recursive: true });
          }

          cb(null, subDir);
        },
        filename: (_req, file, cb) => {
          const ext = file.originalname.split('.').pop();
          cb(null, `${uuidv4()}.${ext}`);
        }
      })
    }),
    PrismaModule,
    UploadModule
  ],
  providers: [
    AzureExtractor,
    K1AggregationService,
    K1AllocationService,
    K1ConfidenceService,
    K1FieldMapperService,
    K1ImportService,
    PdfParseExtractor,
    TesseractExtractor
  ]
})
export class K1ImportModule {}