import { Controller, Get, Post, Put, Delete, Body, Param, Query, HttpCode, HttpStatus, NotFoundException } from '@nestjs/common';
import { ApiTags, ApiOperation, ApiResponse, ApiBody } from '@nestjs/swagger';
import { PrismaService } from '../services/prisma.service';
import { PrismaClientKnownRequestError } from '@prisma/client/runtime/library';
import {
  CreateProductDto,
  UpdateProductDto,
  FindManyProductDto,
  FlatQueryProductDto,
  ProductResponseDto,
  ProductIdDto,
} from '../dto/product';

@ApiTags('Product')
@Controller('product')
export class ProductController {
  constructor(private readonly prisma: PrismaService) {}

  @Post()
  @ApiOperation({ summary: 'Create a new Product record', operationId: 'createProduct' })
  @ApiBody({ type: CreateProductDto })
  @ApiResponse({ status: 201, description: 'Created Product record', type: ProductResponseDto })
  async createProduct(@Body() data: CreateProductDto): Promise<ProductResponseDto> {
    return this.prisma.product.create({ data });
  }

  @Put(':id')
  @ApiOperation({ summary: 'Update a Product record', operationId: 'updateProduct' })
  @ApiBody({ type: UpdateProductDto })
  @ApiResponse({ status: 200, description: 'Updated Product record', type: ProductResponseDto })
  @ApiResponse({ status: 404, description: 'Product record not found' })
  async updateProduct(@Param() params: ProductIdDto, @Body() data: UpdateProductDto): Promise<ProductResponseDto> {
    try {
      return await this.prisma.product.update({ where: params, data });
    } catch (error) {
      if (error instanceof PrismaClientKnownRequestError && error.code === 'P2025') {
        throw new NotFoundException('Product record not found');
      }
      throw error;
    }
  }

  @Get(':id')
  @ApiOperation({ summary: 'Get a Product record by ID', operationId: 'getProduct' })
  @ApiResponse({ status: 200, description: 'Product record', type: ProductResponseDto })
  @ApiResponse({ status: 404, description: 'Product record not found' })
  async getProduct(@Param() params: ProductIdDto): Promise<ProductResponseDto> {
    try {
      return await this.prisma.product.findUniqueOrThrow({ where: params });
    } catch (error) {
      if (error instanceof PrismaClientKnownRequestError && error.code === 'P2025') {
        throw new NotFoundException('Product record not found');
      }
      throw error;
    }
  }

  @Get()
  @ApiOperation({ summary: 'Get a list of Product records', operationId: 'getProductList' })
  @ApiResponse({ status: 200, description: 'List of Product records', type: [ProductResponseDto] })
  async getProductList(@Query() query: FlatQueryProductDto): Promise<ProductResponseDto[]> {
    return this.prisma.product.findMany(query.toPrismaQuery());
  }

  @Post('search')
  @ApiOperation({ summary: 'Search Product records', operationId: 'searchProduct' })
  @ApiBody({ type: FindManyProductDto })
  @ApiResponse({ status: 200, description: 'List of Product records', type: [ProductResponseDto] })
  async searchProduct(@Body() query: FindManyProductDto): Promise<ProductResponseDto[]> {
    const { where, orderBy, take, skip } = query;
    return this.prisma.product.findMany({
      where,
      orderBy,
      take,
      skip,
    });
  }

  @Delete(':id')
  @ApiOperation({ summary: 'Delete a Product record', operationId: 'deleteProduct' })
  @HttpCode(HttpStatus.NO_CONTENT)
  @ApiResponse({ status: 204, description: 'Product record deleted' })
  @ApiResponse({ status: 404, description: 'Product record not found' })
  async deleteProduct(@Param() params: ProductIdDto): Promise<void> {
    try {
      await this.prisma.product.delete({ where: params });
    } catch (error) {
      if (error instanceof PrismaClientKnownRequestError && error.code === 'P2025') {
        throw new NotFoundException('Product record not found');
      }
      throw error;
    }
  }

}