import {
  Body,
  Controller,
  Delete,
  Get,
  Param,
  ParseIntPipe,
  Patch,
  Post,
  Query,
  Res,
} from '@nestjs/common';
import { ApiBearerAuth, ApiTags } from '@nestjs/swagger';
import type { Response } from 'express';
import { RequirePermission } from '../auth/decorators/require-permission.decorator';
import { CurrentUser } from '../auth/decorators/current-user.decorator';
import type { AuthenticatedUser } from '../auth/types/authenticated-user';
import { CreateLabelTemplateDto } from './dto/create-label-template.dto';
import { UpdateLabelTemplateDto } from './dto/update-label-template.dto';
import { LabelTemplatesService } from './label-templates.service';

@ApiTags('label-templates')
@ApiBearerAuth()
@Controller('label-templates')
export class LabelTemplatesController {
  constructor(private readonly labelTemplatesService: LabelTemplatesService) {}

  @RequirePermission('label-templates:read')
  @Get()
  findAll() {
    return this.labelTemplatesService.findAll();
  }

  @RequirePermission('label-templates:read')
  @Get(':id')
  findOne(@Param('id') id: string) {
    return this.labelTemplatesService.findById(id);
  }

  @RequirePermission('label-templates:create')
  @Post()
  create(
    @Body() dto: CreateLabelTemplateDto,
    @CurrentUser() actor: AuthenticatedUser,
  ) {
    return this.labelTemplatesService.create(dto, actor.id);
  }

  @RequirePermission('label-templates:update')
  @Patch(':id')
  update(
    @Param('id') id: string,
    @Body() dto: UpdateLabelTemplateDto,
    @CurrentUser() actor: AuthenticatedUser,
  ) {
    return this.labelTemplatesService.update(id, dto, actor.id);
  }

  @RequirePermission('label-templates:deactivate')
  @Delete(':id')
  deactivate(@Param('id') id: string, @CurrentUser() actor: AuthenticatedUser) {
    return this.labelTemplatesService.deactivate(id, actor.id);
  }

  @RequirePermission('label-templates:print')
  @Get(':id/print/:bottlingBatchId')
  async print(
    @Param('id') id: string,
    @Param('bottlingBatchId') bottlingBatchId: string,
    @Query('startPosition', new ParseIntPipe({ optional: true }))
    startPosition: number | undefined,
    @Res() res: Response,
  ): Promise<void> {
    const pdf = await this.labelTemplatesService.renderLabelsPdf(
      id,
      bottlingBatchId,
      startPosition,
    );
    res.setHeader('Content-Type', 'application/pdf');
    res.setHeader(
      'Content-Disposition',
      'attachment; filename="etiketten.pdf"',
    );
    res.send(pdf);
  }
}