import {
  Body,
  Controller,
  Delete,
  HttpCode,
  Param,
  Patch,
  Post,
} from '@nestjs/common';
import { ApiOkResponse, ApiOperation, ApiTags } from '@nestjs/swagger';
import { User } from '@task-stream/api/identity/domain';
import {
  ApiPireonAuth,
  CurrentUser,
} from '@task-stream/api/identity/presenters';
import { ApiCommandErrors } from '@task-stream/api/shared/presenters';
import { CommentsService } from '@task-stream/api/tracker/application';
import { REACTIONS } from '@task-stream/api/tracker/domain';
import { CommentBodyDto, ReactToCommentDto } from './dto/requests.dto';
import { CommandResultDto } from './dto/responses.dto';

/** REST adapter of the comment use cases (listing and adding live under /issues). */
@ApiTags('Comments')
@ApiPireonAuth()
@Controller('comments')
export class CommentsController {
  constructor(private readonly comments: CommentsService) {}

  @Patch(':commentId')
  @ApiOperation({ summary: 'Edit a comment (author only)' })
  @ApiOkResponse({ type: CommandResultDto })
  @ApiCommandErrors()
  edit(
    @CurrentUser() me: User,
    @Param('commentId') commentId: string,
    @Body() body: CommentBodyDto,
  ) {
    return this.comments.edit(me.id, commentId, body.body);
  }

  @Post(':commentId/reactions')
  @HttpCode(200)
  @ApiOperation({
    summary: 'React to a comment, or take the reaction back (members)',
    description: `One of ${REACTIONS.join(' ')}; repeating it changes nothing.`,
  })
  @ApiOkResponse({ type: CommandResultDto })
  @ApiCommandErrors()
  react(
    @CurrentUser() me: User,
    @Param('commentId') commentId: string,
    @Body() body: ReactToCommentDto,
  ) {
    return this.comments.react(me.id, commentId, body.emoji, body.on);
  }

  @Delete(':commentId')
  @ApiOperation({ summary: 'Delete a comment (author or project admin)' })
  @ApiOkResponse({ type: CommandResultDto })
  @ApiCommandErrors()
  delete(@CurrentUser() me: User, @Param('commentId') commentId: string) {
    return this.comments.delete(me.id, commentId);
  }
}