import { Controller, Get, Post, Put, Body, Param, Headers, HttpException, HttpStatus } from '@nestjs/common';
import { MenuService } from './menu.service';
import { MenuItem } from './menu.interface';

@Controller('menu')
export class MenuController {
  constructor(private readonly menuService: MenuService) { }

  @Get('full')
  async getFullMenu(@Headers('if-modified-since') ifModifiedSince?: string) {
    console.log('GET /menu/full requested');
    try {
      const result = await this.menuService.getFullMenuWithCache(ifModifiedSince);

      if (!result.fresh && ifModifiedSince) {
        throw new HttpException('Not Modified', HttpStatus.NOT_MODIFIED);
      }

      return result.menu;
    } catch (error) {
      if (error.status === HttpStatus.NOT_MODIFIED) {
        throw error;
      }
      throw new HttpException(
        error.message || 'Failed to load menu',
        HttpStatus.INTERNAL_SERVER_ERROR
      );
    }
  }
  /*
    @Get('full')
    async getFullMenu() {
      console.log('Simplified endpoint called');
      return { test: 'OK' }; // Простейший ответ
    } */

  @Get('check-updates')
  async checkUpdates(@Headers('if-modified-since') ifModifiedSince: string) {
    if (!ifModifiedSince) {
      throw new HttpException('If-Modified-Since header is required', HttpStatus.BAD_REQUEST);
    }

    const hasUpdates = await this.menuService.checkForUpdates(ifModifiedSince);
    return { hasUpdates };
  }

  @Post('save')
  async saveMenu() {
    await this.menuService.saveMenuToFile();
    return { status: 'saved' };
  }

  @Post('overrides')
  async saveOverrides(@Body() data: { overrides: Partial<MenuItem>[] }) {
    await this.menuService.saveOverrides(data.overrides);
    return { status: 'success' };
  }

  @Put(':id')
  async updateMenuItem(
    @Param('id') id: string,
    @Body() update: Partial<MenuItem>
  ) {
    const updatedItem = await this.menuService.updateMenuItem(id, update);
    return updatedItem;
  }
}