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import {
Controller,
Get,
Post,
Patch,
Delete,
Param,
Body,
NotFoundException,
BadRequestException,
} from '@nestjs/common';
import { BookService } from './book.service';
import { VisitorService } from '../visitor/visitor.service';
import { CreateBookDto } from './dto/create-book.dto';
import { BorrowBookDto } from './dto/borrow-book.dto';
import { ReturnBookDto } from './dto/return-book.dto';
import { DateUtils } from 'src/utils/date.utils';
import { WorkerService } from 'src/worker/worker.service';
import { UpdateBookDto } from './dto/update-book.dto';
import { buildDownloadFile } from 'src/utils/download.utils';
@Controller('books')
export class BookController {
constructor(
private readonly bookService: BookService,
private readonly visitorService: VisitorService,
private readonly workerService: WorkerService,
) {}
@Get('all')
async getAll() {
return await this.bookService.getAll();
}
@Get(':id/download')
async download(@Param('id') id: string) {
const book = await this.bookService.getById(id);
if (!book) throw new NotFoundException(`Book with id ${id} not found`);
return buildDownloadFile('books', id, book);
}
@Post('create')
async create(@Body() dto: CreateBookDto) {
return await this.bookService.add(dto);
}
@Get(':id')
async getById(@Param('id') id: string) {
const book = await this.bookService.getById(id);
if (!book) throw new NotFoundException(`Book with id ${id} not found`);
return book;
}
@Patch(':id')
async update(@Param('id') id: string, @Body() dto: UpdateBookDto) {
const updated = await this.bookService.update(id, dto);
if (!updated) throw new NotFoundException(`Book with id ${id} not found`);
return updated;
}
@Delete(':id')
async remove(@Param('id') id: string) {
const deleted = await this.bookService.delete(id);
if (!deleted) throw new NotFoundException(`Book with id ${id} not found`);
return { message: `Book with id ${id} deleted successfully` };
}
@Post('borrow')
async borrow(@Body() dto: BorrowBookDto) {
const visitor = await this.visitorService.getById(dto.visitorId);
if (!visitor) throw new NotFoundException(`Visitor not found`);
const worker = await this.workerService.getById(dto.workerId);
if (!worker) throw new NotFoundException(`Worker not found`);
if (!DateUtils.isWorkingDay(dto.borrowDate, worker.workDays)) {
throw new BadRequestException('Library is closed on this day');
}
const borrowedBooks = await this.bookService.borrowBooks(
dto.bookIds,
visitor,
);
await this.visitorService.addCurrentBooks(visitor.id, borrowedBooks);
await this.workerService.addIssuedBooks(worker.id, borrowedBooks);
return { message: `Successfully borrowed ${borrowedBooks.length} book(s)` };
}
@Post('return')
async return(@Body() dto: ReturnBookDto) {
const visitor = await this.visitorService.getById(dto.visitorId);
if (!visitor) throw new NotFoundException(`Visitor not found`);
const worker = await this.workerService.getById(dto.workerId);
if (!worker) throw new NotFoundException(`Worker not found`);
if (!DateUtils.isWorkingDay(dto.returnDate, worker.workDays)) {
throw new BadRequestException('Library is closed on this day');
}
const returnedBooks = await this.bookService.returnBooks(
dto.bookIds,
visitor,
);
await this.visitorService.moveToHistory(visitor.id, returnedBooks);
return { message: `Successfully returned ${returnedBooks.length} book(s)` };
}
}
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