import { Body, Controller, HttpCode, HttpStatus, Post } from '@nestjs/common';
import { ApiOkResponse, ApiOperation, ApiTags } from '@nestjs/swagger';

import { BookingStaff } from '../../common/booking-guards';
import { AiBookingRequestDto } from './dto/ai-booking-request.dto';
import { AiBookingResult } from './types/ai-booking-result.type';
import { MockAiService } from './mock-ai.service';
import { FREIGHT_PERMS } from '../../seed/freight-permissions.registry';

@BookingStaff(FREIGHT_PERMS.bookings.view)
@ApiTags('AI Assistant (mock)')
@Controller('ai')
export class AiController {
  constructor(private readonly mockAiService: MockAiService) {}

  @Post('booking/extract')
  @HttpCode(HttpStatus.OK)
  @ApiOperation({
    summary:
      'Mock AI: extract structured booking fields from free-text request',
  })
  @ApiOkResponse({
    description:
      'Extracted fields, validation result, and next-step recommendation',
  })
  extractBooking(@Body() dto: AiBookingRequestDto): AiBookingResult {
    return this.mockAiService.extractBooking(dto.text);
  }
}