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

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

// -----------------------commentLikes-----------------------
func (l *AddCommentLikesLogic) AddCommentLikes(in *pb.AddCommentLikesReq) (*pb.AddCommentLikesResp, error) {
	if in.GetCommentId() <= 0 || in.GetUserId() <= 0 {
		return nil, errors.New("commentId and userId are required")
	}

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

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

	key := commentLikeKey(in.GetCommentId(), in.GetUserId())
	if _, exists := store.CommentLikes[key]; exists {
		return &pb.AddCommentLikesResp{}, nil
	}

	store.CommentLikes[key] = &pb.CommentLikes{
		CommentId: in.GetCommentId(),
		UserId:    in.GetUserId(),
		CreatedAt: nowUnix(in.GetCreatedAt()),
	}
	comment.LikeCount++

	return &pb.AddCommentLikesResp{}, nil
}