import { Body, Controller, Get, Param, Patch, Post } from "@nestjs/common";
import { CreateGroupDto } from "../dto/create-group.dto";
import { GroupsService } from "../application/groups.service";
import { RenameGroupDto } from "../dto/rename-group.dto";
import { IncomingEventDto } from "src/model/dto/incoming-event.dto";
import { ulid } from 'ulid';

@Controller({path: 'groups'})
export class GroupsController {

  constructor(private groupsService: GroupsService) {}

  @Get()
  getGroups() {
    return this.groupsService.getAll();
  }

  @Post()
  createGroup(@Body() dto: CreateGroupDto) {
    return this.groupsService.create(dto);
  }

  @Patch(':id/name')
  rename(@Param('id') id: string, @Body() dto: RenameGroupDto) {
    // actorId später z.B. aus Header/Cookie ziehen
    const event: IncomingEventDto = {
      id: ulid(),
      payload: { to: dto.name },
      type: 'GROUP_RENAMED',
      actorId: undefined
    }
    return this.ingest(id, [event])
  }

  @Post(':groupId/events/batch')
  ingest(
    @Param('groupId') groupId: string,
    @Body() events: IncomingEventDto[],
  ) {
    return this.groupsService.ingestEvents(groupId, events);
  }

}