package com.example.webserveis.testkeyvalue;

import android.graphics.Color;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import java.util.Collections;
import java.util.List;

import androidx.annotation.NonNull;
import androidx.recyclerview.widget.ItemTouchHelper;
import androidx.recyclerview.widget.RecyclerView;

public class KeyValueAdapter extends RecyclerView.Adapter<KeyValueAdapter.MyViewHolder> implements
        SwipeAndDragHelper.ItemTouchHelperAdapter {

    private List<KeyValueItem> itemList;
    private ItemTouchHelper touchHelper;

    public KeyValueAdapter(List<KeyValueItem> data) {
        this.itemList = data;
    }

    @NonNull
    @Override
    public KeyValueAdapter.MyViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item_layout, parent, false);
        return new MyViewHolder(v);
    }

    @Override
    public void onBindViewHolder(@NonNull KeyValueAdapter.MyViewHolder holder, int position) {
        KeyValueItem item = itemList.get(position);

        holder.mKey.setText(item.getKey());
        holder.mValue.setText(item.getValue());
    }

    @Override
    public int getItemCount() {
        return itemList == null ? 0 : itemList.size();
    }

    public void updateDataSet(List<KeyValueItem> data) {
        this.itemList = data;
        notifyDataSetChanged();
    }

    @NonNull
    public final List<KeyValueItem> getCurrentItems() {
        return Collections.unmodifiableList(itemList);
    }



    @Override
    public void onViewMoved(int oldPosition, int newPosition) {
        Collections.swap(itemList, oldPosition, newPosition);
        notifyItemMoved(oldPosition, newPosition);
    }

    @Override
    public void onViewSwiped(int position) {
        itemList.remove(position);
        notifyItemRemoved(position);
    }

    public void setTouchHelper(ItemTouchHelper touchHelper) {
        this.touchHelper = touchHelper;
    }

    public static class MyViewHolder extends RecyclerView.ViewHolder implements
            SwipeAndDragHelper.ItemTouchHelperViewHolder {

        private TextView mKey;
        private TextView mValue;

        public MyViewHolder(@NonNull View itemView) {
            super(itemView);

            mKey = itemView.findViewById(R.id.text1);
            mValue = itemView.findViewById(R.id.text2);
        }

        @Override
        public void onItemSelected() {
            itemView.setBackgroundColor(Color.LTGRAY);
        }

        @Override
        public void onItemClear() {
            itemView.setBackgroundColor(0);
        }
    }
}