import {
	ForbiddenException,
	Injectable,
	NotFoundException,
} from "@nestjs/common";
import type { CreateCommentDto } from "./dto/create-comment.dto";
import { CommentsRepository } from "./repositories/comments.repository";

@Injectable()
export class CommentsService {
	constructor(private readonly commentsRepository: CommentsRepository) {}

	async create(userId: string, contentId: string, dto: CreateCommentDto) {
		return this.commentsRepository.create({
			userId,
			contentId,
			text: dto.text,
		});
	}

	async findAllByContentId(contentId: string) {
		return this.commentsRepository.findAllByContentId(contentId);
	}

	async remove(userId: string, commentId: string, isAdmin = false) {
		const comment = await this.commentsRepository.findOne(commentId);
		if (!comment) {
			throw new NotFoundException("Comment not found");
		}

		if (!isAdmin && comment.userId !== userId) {
			throw new ForbiddenException("You cannot delete this comment");
		}

		await this.commentsRepository.delete(commentId);
	}
}