Initial commit from Specify template

backend/src/modules/thumbnails/thumbnails.service.ts

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+import { Injectable, NotFoundException } from '@nestjs/common';
+import { InjectRepository } from '@nestjs/typeorm';
+import { Repository } from 'typeorm';
+import { unlink } from 'fs/promises';
+import { join } from 'path';
+import { Thumbnail } from '../../entities/thumbnail.entity';
+
+@Injectable()
+export class ThumbnailsService {
+  constructor(
+    @InjectRepository(Thumbnail)
+    private thumbnailRepository: Repository<Thumbnail>,
+  ) {}
+
+  async create(file: Express.Multer.File): Promise<Thumbnail> {
+    const thumbnail = this.thumbnailRepository.create({
+      filePath: file.filename,
+      originalName: file.originalname,
+      title: file.originalname.replace(/\.[^/.]+$/, ''),
+    });
+
+    return this.thumbnailRepository.save(thumbnail);
+  }
+
+  async findOne(id: string): Promise<Thumbnail> {
+    const thumbnail = await this.thumbnailRepository.findOne({ where: { id } });
+    if (!thumbnail) {
+      throw new NotFoundException(`Thumbnail with ID ${id} not found`);
+    }
+    return thumbnail;
+  }
+
+  async remove(id: string): Promise<void> {
+    const thumbnail = await this.findOne(id);
+
+    // Delete file from disk
+    try {
+      await unlink(join('./uploads', thumbnail.filePath));
+    } catch (error) {
+      console.error('Error deleting file:', error);
+    }
+
+    await this.thumbnailRepository.remove(thumbnail);
+  }
+
+  formatThumbnailResponse(thumbnail: Thumbnail) {
+    return {
+      id: thumbnail.id,
+      url: `/uploads/${thumbnail.filePath}`,
+      originalName: thumbnail.originalName,
+      title: thumbnail.title,
+      position: thumbnail.position,
+    };
+  }
+}