package logic

import (
	"context"
	"errors"

	"juwan-backend/app/community/rpc/internal/svc"
	"juwan-backend/app/community/rpc/pb"

	"github.com/zeromicro/go-zero/core/logx"
)

type AddCommentsLogic struct {
	ctx    context.Context
	svcCtx *svc.ServiceContext
	logx.Logger
}

func NewAddCommentsLogic(ctx context.Context, svcCtx *svc.ServiceContext) *AddCommentsLogic {
	return &AddCommentsLogic{
		ctx:    ctx,
		svcCtx: svcCtx,
		Logger: logx.WithContext(ctx),
	}
}

// -----------------------comments-----------------------
func (l *AddCommentsLogic) AddComments(in *pb.AddCommentsReq) (*pb.AddCommentsResp, error) {
	if in.GetPostId() <= 0 {
		return nil, errors.New("postId is required")
	}
	if in.GetAuthorId() <= 0 {
		return nil, errors.New("authorId is required")
	}
	if in.GetContent() == "" {
		return nil, errors.New("content is required")
	}

	store := l.svcCtx.Store
	store.Mu.Lock()
	defer store.Mu.Unlock()

	post, ok := store.Posts[in.GetPostId()]
	if !ok || post.GetDeletedAt() > 0 {
		return nil, errors.New("post not found")
	}

	now := nowUnix(in.GetCreatedAt())
	comment := &pb.Comments{
		Id:        store.NextComment(),
		PostId:    in.GetPostId(),
		AuthorId:  in.GetAuthorId(),
		Content:   in.GetContent(),
		LikeCount: 0,
		CreatedAt: now,
	}
	store.Comments[comment.Id] = comment
	post.CommentCount++
	post.UpdatedAt = now

	return &pb.AddCommentsResp{}, nil
}