backend/src/cart/cart.controller.ts

import {
  Body,
  Controller,
  Delete,
  Get,
  Param,
  Patch,
  Post,
  Query,
  UseGuards,
} from '@nestjs/common';
import { AuthUser } from '../auth/auth.types';
import { CurrentUser } from '../auth/decorators/current-user.decorator';
import { RequireBusinessPermission } from '../auth/decorators/require-business-permission.decorator';
import { BusinessPermissionGuard } from '../auth/guards/business-permission.guard';
import { JwtAuthGuard } from '../auth/guards/jwt-auth.guard';
import {
  AddCartItemDto,
  CheckoutCartDto,
  UpdateCartItemDto,
} from './dto/cart.dto';
import { CartService } from './cart.service';

@Controller('businesses/:businessId/cart')
@UseGuards(JwtAuthGuard)
export class CartController {
  constructor(private readonly service: CartService) {}

  @Get()
  getCart(@Param('businessId') businessId: string, @CurrentUser() user: AuthUser) {
    return this.service.getCart(businessId, user);
  }

  @Post('items')
  addItem(
    @Param('businessId') businessId: string,
    @Body() dto: AddCartItemDto,
    @CurrentUser() user: AuthUser,
  ) {
    return this.service.addItem(businessId, dto, user);
  }

  @Patch('items/:itemId')
  updateItem(
    @Param('businessId') businessId: string,
    @Param('itemId') itemId: string,
    @Body() dto: UpdateCartItemDto,
    @CurrentUser() user: AuthUser,
  ) {
    return this.service.updateItem(businessId, itemId, dto, user);
  }

  @Delete('items/:itemId')
  removeItem(
    @Param('businessId') businessId: string,
    @Param('itemId') itemId: string,
    @CurrentUser() user: AuthUser,
  ) {
    return this.service.removeItem(businessId, itemId, user);
  }

  @Delete()
  clear(@Param('businessId') businessId: string, @CurrentUser() user: AuthUser) {
    return this.service.clear(businessId, user);
  }

  @Post('checkout')
  checkout(
    @Param('businessId') businessId: string,
    @Body() dto: CheckoutCartDto,
    @CurrentUser() user: AuthUser,
  ) {
    return this.service.checkout(businessId, dto, user);
  }
}