Like and Dislike Button - Swift

Question

First of all, I'm new to this topic. The question I'm going to ask is probably a simple one, but I couldn't find a solution. I want to put like and dislike button. When I press like or dislike, the numbers on the other line change. How can I fix this problem. @IBAction func likeButonClicked(_ sender: Any) {

    let fireStoreDatabase = Firestore.firestore()
    if let likeCount = Int(likeLabel.text!) {
       let likeStore = ["likes" : likeCount + 1 ] as [String : Any]
      
        fireStoreDatabase.collection("Posts").document(documentIdLabel.text!).setData(likeStore, merge: true)
        likeButton.isHidden = true
        dislikeButton.isHidden = false
           
    }

} @IBAction func dislikeButonClicked(_ sender: Any) {

    let fireStoreDatabase = Firestore.firestore()
    if let likeCount = Int(likeLabel.text!) {
       let likeStore = ["likes" : likeCount - 1 ] as [String : Any]
      
        fireStoreDatabase.collection("Posts").document(documentIdLabel.text!).setData(likeStore, merge: true)
        likeButton.isHidden = false
        dislikeButton.isHidden = true
}

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