import { Controller, Post, Get, Param, Body, Query } from '@nestjs/common';
import { ApiTags, ApiBearerAuth } from '@nestjs/swagger';
import { GroupsService } from './groups.service';
import { CurrentUser } from '../auth/decorators/current-user.decorator';
import { User } from '@coursecraft/database';

@ApiTags('groups')
@Controller('groups')
@ApiBearerAuth()
export class GroupsController {
  constructor(private groupsService: GroupsService) {}

  @Post()
  async createGroup(@Body() body: { courseId: string; name: string; description?: string }, @CurrentUser() user: User): Promise<any> {
    return this.groupsService.createGroup(body.courseId, user.id, body.name, body.description);
  }

  @Post(':groupId/members')
  async addMember(@Param('groupId') groupId: string, @Body('userId') userId: string, @CurrentUser() user: User): Promise<any> {
    return this.groupsService.addMember(groupId, user.id, userId);
  }

  @Get('course/:courseId/default')
  async getDefaultGroup(@Param('courseId') courseId: string, @CurrentUser() user: User): Promise<any> {
    return this.groupsService.getDefaultGroup(courseId, user.id);
  }

  @Get(':groupId/members')
  async getMembers(@Param('groupId') groupId: string, @CurrentUser() user: User): Promise<any> {
    return this.groupsService.getGroupMembers(groupId, user.id);
  }

  @Get(':groupId/messages')
  async getMessages(
    @Param('groupId') groupId: string,
    @Query('lessonId') lessonId: string | undefined,
    @CurrentUser() user: User
  ): Promise<any> {
    return this.groupsService.getGroupMessages(groupId, user.id, lessonId);
  }

  @Post(':groupId/messages')
  async sendMessage(
    @Param('groupId') groupId: string,
    @Body() body: { content: string; lessonId?: string },
    @CurrentUser() user: User
  ): Promise<any> {
    return this.groupsService.sendMessage(groupId, user.id, body.content, body.lessonId);
  }

  @Post(':groupId/invite-link')
  async createInviteLink(@Param('groupId') groupId: string, @CurrentUser() user: User): Promise<any> {
    return this.groupsService.createInviteLink(groupId, user.id);
  }

  @Post('join/:groupId')
  async joinByInvite(@Param('groupId') groupId: string, @CurrentUser() user: User): Promise<any> {
    return this.groupsService.joinByInvite(groupId, user.id);
  }
}