attachment done

src/_core/dto/base.dto.ts

@@ -0,0 +1,18 @@
+import { IsString, IsEnum, IsOptional, IsUUID, ValidateNested } from 'class-validator';
+import { Type } from 'class-transformer';
+import {MetadataDto} from './metadataEntry.dto';
+
+export class BaseDto {
+  @IsUUID()
+  @IsOptional() // id is optional since BaseEntity generates it
+  id?: string;
+
+  @IsEnum(['active', 'inactive'])
+  @IsOptional()
+  status?: 'active'| 'inactive';
+
+  @ValidateNested()
+  @Type(() => MetadataDto)
+  @IsOptional()
+  metadata?: MetadataDto; // Optional, defaults to { entries: [] }
+}

src/_core/dto/metadataEntry.dto.ts

@@ -0,0 +1,17 @@
+import { IsString, ValidateNested } from 'class-validator';
+import { Type } from 'class-transformer';
+
+class MetadataEntryDto {
+  @IsString()
+  key: string;
+
+  @IsString()
+  value: string;
+}
+
+export class MetadataDto {
+  @ValidateNested({ each: true })
+  @Type(() => MetadataEntryDto)
+  entries: MetadataEntryDto[];
+}
+

src/attachment/attachment.controller.ts

@@ -0,0 +1,47 @@
+import { Controller, Get, Post, Patch, Delete, Param, Body, UsePipes, ValidationPipe, Query, ParseUUIDPipe, HttpCode, HttpStatus,} from '@nestjs/common';
+import { AttachmentService } from './attachment.service';
+import { CreateAttachmentDto } from './dto/create_attachment.dto';
+import { UpdateAttachmentDto } from './dto/update_attachment.dto';
+import { Attachment } from './entity/attachment.entity';
+
+@Controller('attachments')
+export class AttachmentController {
+  constructor(private readonly attachmentService: AttachmentService) {}
+
+  @Post()
+  @UsePipes(new ValidationPipe({ transform: true, whitelist: true }))
+  async create(@Body() body: CreateAttachmentDto): Promise<Attachment> {
+    return this.attachmentService.create(body);
+  }
+
+  @Get('findAll')
+  async findAll(
+    @Query('page') page: string = '1',
+    @Query('limit') limit: string = '10',
+  ) {
+    // The service returns the full pagination object
+    return this.attachmentService.findAll(parseInt(page, 10), parseInt(limit, 10));
+  }
+
+  @Get(':id')
+  async findOne(
+    @Param('id', new ParseUUIDPipe()) id: string,
+  ): Promise<Attachment | null> {
+    return this.attachmentService.findById(id);
+  }
+
+  @Patch(':id')
+  @UsePipes(new ValidationPipe({ transform: true, whitelist: true }))
+  async update(
+    @Param('id', new ParseUUIDPipe()) id: string,
+    @Body() body: UpdateAttachmentDto,
+  ): Promise<Attachment | null> {
+    return this.attachmentService.update(id, body);
+  }
+
+  @Delete(':id')
+  @HttpCode(HttpStatus.NO_CONTENT)
+  async remove(@Param('id', new ParseUUIDPipe()) id: string): Promise<void> {
+    return this.attachmentService.remove(id);
+  }
+}

src/attachment/attachment.module.ts

@@ -0,0 +1,16 @@
+import { Module } from '@nestjs/common';
+import { MongooseModule } from '@nestjs/mongoose';
+import { Attachment, AttachmentSchema } from './entity/attachment.entity';
+import { AttachmentController } from './attachment.controller';
+import { AttachmentService } from './attachment.service';
+
+@Module({
+  imports: [
+    MongooseModule.forFeature([
+      { name: Attachment.name, schema: AttachmentSchema },
+    ]),
+  ],
+  controllers: [AttachmentController],
+  providers: [AttachmentService],
+})
+export class AttachmentModule {}

src/attachment/attachment.service.ts

@@ -0,0 +1,107 @@
+import { Injectable, NotFoundException } from '@nestjs/common';
+import { InjectModel } from '@nestjs/mongoose';
+import { Model } from 'mongoose';
+import { Attachment, AttachmentDocument } from './entity/attachment.entity';
+import { CreateAttachmentDto } from './dto/create_attachment.dto';
+import { UpdateAttachmentDto } from './dto/update_attachment.dto';
+
+// Interface matching the mongoose-paginate-v2 plugin
+interface PaginateModel<T> extends Model<T> {
+  paginate: (
+    query?: any,
+    options?: { page: number; limit: number; lean?: boolean; select?: string },
+  ) => Promise<{
+    docs: T[];
+    totalDocs: number;
+    limit: number;
+    page: number;
+    totalPages: number;
+    hasNextPage: boolean;
+    hasPrevPage: boolean;
+    nextPage: number | null;
+    prevPage: number | null;
+  }>;
+}
+
+@Injectable()
+export class AttachmentService {
+  constructor(
+    @InjectModel(Attachment.name)
+    private readonly attachmentModel: PaginateModel<AttachmentDocument>,
+  ) {}
+
+  async create(data: CreateAttachmentDto): Promise<Attachment> {
+    const attachment = new this.attachmentModel({
+      ...data,
+      id: data.id || undefined, // Let BaseEntity generate UUID if not provided
+      metadata: data.metadata || { entries: [] },
+    });
+    return attachment.save();
+  }
+
+  async findAll(
+    page = 1,
+    limit = 10,
+  ): Promise<{
+    docs: Attachment[];
+    totalDocs: number;
+    limit: number;
+    page: number;
+    totalPages: number;
+    hasNextPage: boolean;
+    hasPrevPage: boolean;
+    nextPage: number | null;
+    prevPage: number | null;
+  }> {
+    // Selects all fields from the Attachment entity for the response
+    const selectFields =
+      'id text type isRequired isConfidential validationRules options attachments metadata status createdAt updatedAt';
+    return this.attachmentModel.paginate(
+      {},
+      { page, limit, lean: true, select: selectFields },
+    );
+  }
+
+  async findById(id: string): Promise<Attachment | null> {
+    const selectFields =
+      'id text type isRequired isConfidential validationRules options attachments metadata status createdAt updatedAt';
+    const attachment = await this.attachmentModel
+      .findOne({ id })
+      .select(selectFields)
+      .lean()
+      .exec();
+    if (!attachment) {
+      throw new NotFoundException(`Attachment with ID "${id}" not found`);
+    }
+    return attachment;
+  }
+
+  async update(
+    id: string,
+    data: UpdateAttachmentDto,
+  ): Promise<Attachment | null> {
+    const selectFields =
+      'id text type isRequired isConfidential validationRules options attachments metadata status createdAt updatedAt';
+    const updatedAttachment = await this.attachmentModel
+      .findOneAndUpdate(
+        { id },
+        { $set: { ...data, updatedAt: new Date() } },
+        { new: true },
+      )
+      .select(selectFields)
+      .lean()
+      .exec();
+
+    if (!updatedAttachment) {
+      throw new NotFoundException(`Attachment with ID "${id}" not found`);
+    }
+    return updatedAttachment;
+  }
+
+  async remove(id: string): Promise<void> {
+    const result = await this.attachmentModel.deleteOne({ id }).exec();
+    if (result.deletedCount === 0) {
+      throw new NotFoundException(`Attachment with ID "${id}" not found`);
+    }
+  }
+}

src/attachment/dto/create_attachment.dto.ts

@@ -0,0 +1,21 @@
+// DTO for embedded Attachment
+import { isEnum, IsEnum, IsOptional, IsString, IsUrl, IsUUID, ValidateNested } from 'class-validator';
+import { Type } from 'class-transformer';
+import { BaseDto } from '../../_core/dto/base.dto';
+
+export class CreateAttachmentDto extends BaseDto{
+  @IsString()
+  displayName: string;
+
+  @IsString()
+  filePath: string;
+
+  @IsEnum(['png','pdf','csv','jpg'])
+  fileType: 'png'|'pdf'|'csv'|'jpg';
+
+  @IsUrl()
+  storageUrl: string;
+
+  @IsUUID()
+  ownerId: string;
+}

src/attachment/dto/update_attachment.dto.ts

@@ -0,0 +1,4 @@
+import { PartialType } from '@nestjs/mapped-types';
+import { CreateAttachmentDto } from './create_attachment.dto';
+
+export class UpdateAttachmentDto extends PartialType(CreateAttachmentDto) {}

src/attachment/entity/attachment.entity.ts

@@ -1,6 +1,6 @@
 import { Prop, Schema, SchemaFactory } from '@nestjs/mongoose';
 import { Document } from 'mongoose';
-import { BaseEntity } from 'src/_core/_base.entity';
+import { BaseEntity } from 'src/_core/entity/_base.entity';
 
 @Schema({ _id: false, id: false }) // Embedded document, inheriting from BaseEntity
 export class Attachment extends BaseEntity {

src/option/dto/create-option.dto.ts

@@ -1,26 +1,8 @@
-import { IsString, IsOptional, ValidateNested } from 'class-validator';
+import { IsString, IsOptional, ValidateNested, IsUUID, IsEnum } from 'class-validator';
-import { Type } from 'class-transformer';
+import { BaseDto } from '../../_core/dto/base.dto';
 
-class MetadataEntryDto {
+// DTO for embedded Option
-  @IsString()
+export class CreateOptionDto extends BaseDto{
-  key: string;
-
-  @IsString()
-  value: string;
-}
-
-class MetadataDto {
-  @ValidateNested({ each: true })
-  @Type(() => MetadataEntryDto)
-  entries: MetadataEntryDto[];
-}
-
-export class CreateOptionDto {
   @IsString()
   text: string;
-
-  @ValidateNested()
-  @Type(() => MetadataDto)
-  @IsOptional()
-  metadata?: MetadataDto;
 }

src/option/entity/option.entity.ts

@@ -1,6 +1,6 @@
 import { Prop, Schema, SchemaFactory } from '@nestjs/mongoose';
 import { Document } from 'mongoose';
-import { BaseEntity } from 'src/_core/_base.entity';
+import { BaseEntity } from 'src/_core/entity/_base.entity';
 
 @Schema({ _id: false, id: false }) // Embedded document, inheriting from BaseEntity
 export class Option extends BaseEntity {

src/option/option.controller.ts

@@ -1,4 +1,4 @@
-import { Controller, Get, Post, Patch, Delete, Param, Body, UsePipes, ValidationPipe } from '@nestjs/common';
+import { Controller, Get, Post, Patch, Delete, Param, Body, UsePipes, ValidationPipe, Query } from '@nestjs/common';
 import { ParseUUIDPipe } from '@nestjs/common';
 import { OptionService } from './option.service';
 import { CreateOptionDto } from './dto/create-option.dto';
@@ -16,9 +16,13 @@ export class OptionController {
     return this.optionService.create(body);
   }
 
-  @Get()
+  @Get('findAll')
-  async findAll(@Paginate() query: PaginateQuery): Promise<Paginated<Option>> {
+  async findAll(
-    return this.optionService.findAll(query);
+    @Query('page') page: string = '1',
+    @Query('limit') limit: string = '10',
+  ) {
+    // The service returns the full pagination object
+    return this.optionService.findAll(parseInt(page, 10), parseInt(limit, 10));
   }
 
   @Get(':id')

src/participant/dto/create-participant.dto.ts

@@ -1,25 +1,9 @@
 import { IsString, IsEnum, IsOptional, IsUUID, ValidateNested } from 'class-validator';
 import { Type } from 'class-transformer';
+import { MetadataDto } from '../../_core/dto/metadataEntry.dto';
+import { BaseDto } from '../../_core/dto/base.dto';
 
-class MetadataEntryDto {
+export class CreateParticipantDto extends BaseDto{
-  @IsString()
-  key: string;
-
-  @IsString()
-  value: string;
-}
-
-class MetadataDto {
-  @ValidateNested({ each: true })
-  @Type(() => MetadataEntryDto)
-  entries: MetadataEntryDto[];
-}
-
-export class CreateParticipantDto {
-  @IsUUID()
-  @IsOptional() // id is optional since BaseEntity generates it
-  id?: string;
-
   @IsUUID()
   userId: string; // Required, provided by client
 
@@ -30,8 +14,4 @@ export class CreateParticipantDto {
   @IsOptional()
   role?: 'moderator' | 'tester' | 'admin' | 'user'; // Optional, defaults to 'user'
 
-  @ValidateNested()
-  @Type(() => MetadataDto)
-  @IsOptional()
-  metadata?: MetadataDto; // Optional, defaults to { entries: [] }
 }

src/participant/entity/participant.entity.ts

@@ -1,6 +1,6 @@
 import { Prop, Schema, SchemaFactory } from '@nestjs/mongoose';
 import { v4 as uuidv4 } from 'uuid';
-import { BaseEntity } from 'src/_core/_base.entity';
+import { BaseEntity } from 'src/_core/entity/_base.entity';
 import * as mongoosePaginate from 'mongoose-paginate-v2';
 import { Document } from 'mongoose';
 

src/question/dto/create-question.dto.ts

@@ -1,81 +1,11 @@
 import { IsString, IsBoolean, IsOptional, IsUUID, ValidateNested, IsArray, IsEnum, IsUrl,} from 'class-validator';
 import { Type } from 'class-transformer';
-
+import {CreateAttachmentDto} from '../../attachment/dto/create_attachment.dto';
-// DTO for Metadata entries, consistent with participant DTO
+import { BaseDto } from '../../_core/dto/base.dto';
-class MetadataEntryDto {
+import { CreateOptionDto } from '../../option/dto/create-option.dto';
-  @IsString()
-  key: string;
-
-  @IsString()
-  value: string;
-}
-
-class MetadataDto {
-  @IsOptional()
-  @IsUUID()
-  id?: string;
-
-  @ValidateNested({ each: true })
-  @Type(() => MetadataEntryDto)
-  entries: MetadataEntryDto[];
-}
-
-// DTO for embedded Option
-class CreateOptionDto {
-  @IsOptional()
-  @IsUUID()
-  id?: string;
-
-  @IsString()
-  text: string;
-
-  @IsOptional()
-  @ValidateNested()
-  @Type(() => MetadataDto)
-  metadata?: MetadataDto;
-
-  @IsOptional()
-  @IsEnum(['active', 'inactive'])
-  status?: 'active' | 'inactive';
-}
-
-// DTO for embedded Attachment
-class CreateAttachmentDto {
-  @IsOptional()
-  @IsUUID()
-  id?: string;
-
-  @IsString()
-  displayName: string;
-
-  @IsString()
-  filePath: string;
-
-  @IsString()
-  fileType: string;
-
-  @IsUrl()
-  storageUrl: string;
-
-  @IsUUID()
-  ownerId: string;
-
-  @IsOptional()
-  @ValidateNested()
-  @Type(() => MetadataDto)
-  metadata?: MetadataDto;
-
-  @IsOptional()
-  @IsEnum(['active', 'inactive'])
-  status?: 'active' | 'inactive';
-}
 
 // Main DTO for creating a Question
-export class CreateQuestionDto {
+export class CreateQuestionDto extends BaseDto{
-  @IsOptional()
-  @IsUUID()
-  id?: string;
-
   @IsString()
   text: string;
 
@@ -94,11 +24,6 @@ export class CreateQuestionDto {
   @IsString()
   validationRules?: string;
 
-  @IsOptional()
-  @ValidateNested()
-  @Type(() => MetadataDto)
-  metadata?: MetadataDto;
-
   @IsOptional()
   @IsArray()
   @ValidateNested({ each: true })

src/question/entity/question.entity.ts

@@ -1,6 +1,6 @@
 import { Prop, Schema, SchemaFactory } from '@nestjs/mongoose';
 import { Document } from 'mongoose';
-import { BaseEntity } from 'src/_core/_base.entity';
+import { BaseEntity } from 'src/_core/entity/_base.entity';
 import * as mongoosePaginate from 'mongoose-paginate-v2';
 import { Attachment, AttachmentSchema } from '../../attachment/entity/attachment.entity';
 import { Option, OptionSchema } from '../../option/entity/option.entity';