[BE-27/BE-28/BE-29/BE-30] Notes, QR/barcode, bulk, check-in/out

backend/src/app.module.ts

@@ -11,6 +11,8 @@ import { AppController } from './app.controller';
 import { AppService } from './app.service';
 import { UsersModule } from './users/users.module';
 import { AuthModule } from './auth/auth.module';
+import { AssetsOpsModule } from './assets/assets-ops.module';
+import { CheckinModule } from './checkin/checkin.module';
 import { AssetsModule } from './assets/assets.module';
 import { QueueModule } from './queue/queue.module';
 import { StorageModule } from './storage/storage.module';
@@ -62,6 +64,8 @@ import { CacheService } from './cache/cache.service';
       },
     }),
 
+    AssetsOpsModule,
+    CheckinModule,
     AssetsModule,
     QueueModule,
     StorageModule,

backend/src/assets/assets-ops.controller.ts

@@ -0,0 +1,65 @@
+import { Controller, Post, Get, Delete, Param, Body, Req, UseGuards, Query } from '@nestjs/common';
+import { AuthGuard } from '@nestjs/passport';
+import { AssetsOpsService } from './assets-ops.service';
+import { CreateNoteDto } from './dtos/create-note.dto';
+import { BulkStatusDto } from './dtos/bulk-status.dto';
+import { BulkDeleteDto } from './dtos/bulk-delete.dto';
+import { BulkTransferDto } from './dtos/bulk-transfer.dto';
+
+@Controller('assets')
+@UseGuards(AuthGuard('jwt'))
+export class AssetsOpsController {
+  constructor(private readonly assetsOpsService: AssetsOpsService) {}
+
+  @Post(':id/notes')
+  async createNote(@Param('id') id: string, @Body() dto: CreateNoteDto, @Req() req: any) {
+    return this.assetsOpsService.createNote(id, dto, req.user?.id);
+  }
+
+  @Get(':id/notes')
+  async getNotes(@Param('id') id: string) {
+    return this.assetsOpsService.getNotes(id);
+  }
+
+  @Delete(':id/notes/:noteId')
+  async deleteNote(@Param('id') id: string, @Param('noteId') noteId: string) {
+    await this.assetsOpsService.deleteNote(id, noteId);
+    return { message: 'Note deleted' };
+  }
+
+  @Post(':id/qrcode')
+  async generateQRCode(@Param('id') id: string) {
+    const qrCode = await this.assetsOpsService.generateQRCode(id);
+    return { qrCode };
+  }
+
+  @Post(':id/barcode')
+  async generateBarcode(@Param('id') id: string) {
+    const barcode = await this.assetsOpsService.generateBarcode(id);
+    return { barcode };
+  }
+
+  @Post('bulk/status')
+  async bulkStatusUpdate(@Body() dto: BulkStatusDto, @Req() req: any) {
+    const count = await this.assetsOpsService.bulkStatusUpdate(dto, req.user?.id);
+    return { updated: count };
+  }
+
+  @Post('bulk/delete')
+  async bulkDelete(@Body() dto: BulkDeleteDto) {
+    const count = await this.assetsOpsService.bulkDelete(dto);
+    return { deleted: count };
+  }
+
+  @Post('bulk/transfer')
+  async bulkTransfer(@Body() dto: BulkTransferDto, @Req() req: any) {
+    const count = await this.assetsOpsService.bulkTransfer(dto, req.user?.id);
+    return { transferred: count };
+  }
+
+  @Get('bulk/export')
+  async bulkExport(@Query('ids') ids?: string) {
+    const idArray = ids ? ids.split(',') : undefined;
+    return this.assetsOpsService.bulkExport(idArray);
+  }
+}

backend/src/assets/assets-ops.module.ts

@@ -0,0 +1,14 @@
+import { Module } from '@nestjs/common';
+import { TypeOrmModule } from '@nestjs/typeorm';
+import { Asset } from './entities/asset.entity';
+import { AssetNote } from './entities/asset-note.entity';
+import { AssetsOpsService } from './assets-ops.service';
+import { AssetsOpsController } from './assets-ops.controller';
+
+@Module({
+  imports: [TypeOrmModule.forFeature([Asset, AssetNote])],
+  controllers: [AssetsOpsController],
+  providers: [AssetsOpsService],
+  exports: [AssetsOpsService],
+})
+export class AssetsOpsModule {}

backend/src/assets/assets-ops.service.ts

@@ -0,0 +1,111 @@
+import { Injectable, NotFoundException } from '@nestjs/common';
+import { InjectRepository } from '@nestjs/typeorm';
+import { Repository, In } from 'typeorm';
+import { Asset } from './entities/asset.entity';
+import { AssetNote } from './entities/asset-note.entity';
+import { CreateNoteDto } from './dtos/create-note.dto';
+import { BulkStatusDto } from './dtos/bulk-status.dto';
+import { BulkDeleteDto } from './dtos/bulk-delete.dto';
+import { BulkTransferDto } from './dtos/bulk-transfer.dto';
+import * as QRCode from 'qrcode';
+import * as bwipjs from 'bwip-js';
+
+@Injectable()
+export class AssetsOpsService {
+  constructor(
+    @InjectRepository(Asset)
+    private readonly assetRepository: Repository<Asset>,
+    @InjectRepository(AssetNote)
+    private readonly noteRepository: Repository<AssetNote>,
+  ) {}
+
+  async createNote(assetId: string, dto: CreateNoteDto, userId?: string): Promise<AssetNote> {
+    const asset = await this.assetRepository.findOne({ where: { id: assetId } });
+    if (!asset) throw new NotFoundException('Asset not found');
+
+    const note = this.noteRepository.create({
+      assetId,
+      content: dto.content,
+      createdById: userId,
+    });
+    return this.noteRepository.save(note);
+  }
+
+  async getNotes(assetId: string): Promise<AssetNote[]> {
+    return this.noteRepository.find({
+      where: { assetId },
+      relations: ['createdBy'],
+      order: { createdAt: 'DESC' },
+    });
+  }
+
+  async deleteNote(assetId: string, noteId: string): Promise<void> {
+    const note = await this.noteRepository.findOne({ where: { id: noteId, assetId } });
+    if (!note) throw new NotFoundException('Note not found');
+    await this.noteRepository.remove(note);
+  }
+
+  async generateQRCode(assetId: string): Promise<string> {
+    const asset = await this.assetRepository.findOne({ where: { id: assetId } });
+    if (!asset) throw new NotFoundException('Asset not found');
+
+    const qrData = JSON.stringify({ id: asset.id, assetId: asset.assetId, name: asset.name });
+    const qrCode = await QRCode.toDataURL(qrData);
+
+    await this.assetRepository.update(assetId, { qrCode });
+    return qrCode;
+  }
+
+  async generateBarcode(assetId: string): Promise<string> {
+    const asset = await this.assetRepository.findOne({ where: { id: assetId } });
+    if (!asset) throw new NotFoundException('Asset not found');
+
+    const barcode = await new Promise<string>((resolve, reject) => {
+      bwipjs.toBuffer({
+        bcid: 'code128',
+        text: asset.assetId,
+        scale: 3,
+        height: 10,
+        includetext: true,
+        textxalign: 'center',
+      }, (err: Error | null, buffer?: Buffer) => {
+        if (err) reject(err);
+        else resolve(`data:image/png;base64,${buffer.toString('base64')}`);
+      });
+    });
+
+    await this.assetRepository.update(assetId, { barcode });
+    return barcode;
+  }
+
+  async bulkStatusUpdate(dto: BulkStatusDto, userId?: string): Promise<number> {
+    const result = await this.assetRepository.update(
+      { id: In(dto.ids) },
+      { status: dto.status, updatedById: userId },
+    );
+    return result.affected || 0;
+  }
+
+  async bulkDelete(dto: BulkDeleteDto): Promise<number> {
+    const result = await this.assetRepository.softDelete({ id: In(dto.ids) });
+    return result.affected || 0;
+  }
+
+  async bulkTransfer(dto: BulkTransferDto, userId?: string): Promise<number> {
+    const updateData: Partial<Asset> = { updatedById: userId };
+    if (dto.assignedToId) updateData.assignedToId = dto.assignedToId;
+    if (dto.departmentId) updateData.departmentId = dto.departmentId;
+    if (dto.location) updateData.location = dto.location;
+
+    const result = await this.assetRepository.update(
+      { id: In(dto.ids) },
+      updateData,
+    );
+    return result.affected || 0;
+  }
+
+  async bulkExport(ids?: string[]) {
+    const where = ids ? { id: In(ids) } : {};
+    return this.assetRepository.find({ where, relations: ['assignedTo', 'createdBy'] });
+  }
+}

backend/src/assets/dtos/bulk-delete.dto.ts

@@ -0,0 +1,6 @@
+import { IsArray } from 'class-validator';
+
+export class BulkDeleteDto {
+  @IsArray()
+  ids: string[];
+}

backend/src/assets/dtos/bulk-status.dto.ts

@@ -0,0 +1,9 @@
+import { IsArray, IsString } from 'class-validator';
+
+export class BulkStatusDto {
+  @IsArray()
+  ids: string[];
+
+  @IsString()
+  status: string;
+}

backend/src/assets/dtos/bulk-transfer.dto.ts

@@ -0,0 +1,18 @@
+import { IsArray, IsOptional, IsString } from 'class-validator';
+
+export class BulkTransferDto {
+  @IsArray()
+  ids: string[];
+
+  @IsOptional()
+  @IsString()
+  assignedToId?: string;
+
+  @IsOptional()
+  @IsString()
+  departmentId?: string;
+
+  @IsOptional()
+  @IsString()
+  location?: string;
+}

backend/src/assets/dtos/create-note.dto.ts

@@ -0,0 +1,6 @@
+import { IsString } from 'class-validator';
+
+export class CreateNoteDto {
+  @IsString()
+  content: string;
+}

backend/src/assets/entities/asset-note.entity.ts

@@ -0,0 +1,32 @@
+import { Entity, PrimaryGeneratedColumn, Column, CreateDateColumn, UpdateDateColumn, ManyToOne, JoinColumn } from 'typeorm';
+import { Asset } from './asset.entity';
+import { User } from '../../users/entities/user.entity';
+
+@Entity('asset_notes')
+export class AssetNote {
+  @PrimaryGeneratedColumn('uuid')
+  id: string;
+
+  @Column()
+  assetId: string;
+
+  @ManyToOne(() => Asset, { onDelete: 'CASCADE' })
+  @JoinColumn({ name: 'assetId' })
+  asset: Asset;
+
+  @Column({ type: 'text' })
+  content: string;
+
+  @Column({ nullable: true })
+  createdById: string;
+
+  @ManyToOne(() => User, { nullable: true })
+  @JoinColumn({ name: 'createdById' })
+  createdBy: User;
+
+  @CreateDateColumn()
+  createdAt: Date;
+
+  @UpdateDateColumn()
+  updatedAt: Date;
+}

backend/src/assets/entities/asset.entity.ts

@@ -0,0 +1,67 @@
+import { Entity, PrimaryGeneratedColumn, Column, CreateDateColumn, UpdateDateColumn, ManyToOne, JoinColumn } from 'typeorm';
+import { User } from '../../users/entities/user.entity';
+
+@Entity('assets')
+export class Asset {
+  @PrimaryGeneratedColumn('uuid')
+  id: string;
+
+  @Column({ unique: true })
+  assetId: string;
+
+  @Column()
+  name: string;
+
+  @Column({ nullable: true, type: 'text' })
+  description: string;
+
+  @Column({ nullable: true })
+  categoryId: string;
+
+  @Column({ nullable: true })
+  serialNumber: string;
+
+  @Column({ default: 'ACTIVE' })
+  status: string;
+
+  @Column({ default: 'NEW' })
+  condition: string;
+
+  @Column({ nullable: true })
+  departmentId: string;
+
+  @Column({ nullable: true })
+  location: string;
+
+  @Column({ nullable: true })
+  assignedToId: string;
+
+  @Column({ nullable: true })
+  barcode: string;
+
+  @Column({ nullable: true })
+  qrCode: string;
+
+  @Column({ nullable: true, type: 'text' })
+  notes: string;
+
+  @Column({ nullable: true })
+  createdById: string;
+
+  @ManyToOne(() => User, { nullable: true })
+  @JoinColumn({ name: 'createdById' })
+  createdBy: User;
+
+  @Column({ nullable: true })
+  updatedById: string;
+
+  @ManyToOne(() => User, { nullable: true })
+  @JoinColumn({ name: 'updatedById' })
+  updatedBy: User;
+
+  @CreateDateColumn()
+  createdAt: Date;
+
+  @UpdateDateColumn()
+  updatedAt: Date;
+}

backend/src/checkin/checkin.controller.ts

@@ -0,0 +1,31 @@
+import { Controller, Post, Get, Param, Body, Req, UseGuards } from '@nestjs/common';
+import { AuthGuard } from '@nestjs/passport';
+import { CheckinService } from './checkin.service';
+import { CheckoutDto } from './dtos/checkout.dto';
+import { CheckinDto } from './dtos/checkin.dto';
+
+@Controller('checkin')
+@UseGuards(AuthGuard('jwt'))
+export class CheckinController {
+  constructor(private readonly checkinService: CheckinService) {}
+
+  @Post('checkout')
+  async checkout(@Body() dto: CheckoutDto, @Req() req: any) {
+    return this.checkinService.checkout(dto, req.user?.id);
+  }
+
+  @Post('checkin')
+  async checkin(@Body() dto: CheckinDto, @Req() req: any) {
+    return this.checkinService.checkin(dto, req.user?.id);
+  }
+
+  @Get('active')
+  async getActiveCheckouts() {
+    return this.checkinService.getActiveCheckouts();
+  }
+
+  @Get('asset/:assetId')
+  async getAssetHistory(@Param('assetId') assetId: string) {
+    return this.checkinService.getAssetHistory(assetId);
+  }
+}