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

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

func (l *GetPostLikesByIdLogic) GetPostLikesById(in *pb.GetPostLikesByIdReq) (*pb.GetPostLikesByIdResp, error) {
	if in.GetId() <= 0 {
		return nil, errors.New("id is required")
	}

	store := l.svcCtx.Store
	store.Mu.RLock()
	defer store.Mu.RUnlock()

	for _, like := range store.PostLikes {
		if like.GetPostId() == in.GetId() {
			cp := *like
			return &pb.GetPostLikesByIdResp{PostLikes: &cp}, nil
		}
	}
	return nil, errors.New("post like not found")

}