package com.phoenixhospman.administrator;

import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import java.util.ArrayList;
import java.util.List;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;
import static java.util.Objects.requireNonNull;

public class FragmentUserList extends Fragment {
    private ManagerAdminApi managerAdminApi;
    private RecyclerView.Adapter uAdapter;
    final private LinearLayoutManager uLayoutManager = new LinearLayoutManager(this.getActivity());

    private ArrayList<ObjectUser> userList = new ArrayList<>();

    /**
     * The fragment onCreateView Method
     *
     * @param inflater the layout inflater
     * @param container the container that will hold the fragment
     * @param savedInstanceState the saved instance state
     * @return View object container the fragment view
     */
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_user_list, container, false);
        assert getArguments() != null;
        String coName = getArguments().getString("CoName");
        String apiUrl = getArguments().getString("ApiUrl");
        managerAdminApi = new ManagerAdminApi(apiUrl);
        RecyclerView uRecyclerView = view.findViewById(R.id.recyclerViewUserList);
        uRecyclerView.setHasFixedSize(true);
        uAdapter = new UserAdapter(userList);
        uRecyclerView.setLayoutManager(uLayoutManager);
        uRecyclerView.setAdapter(uAdapter);
        TextView tvTitle = view.findViewById(R.id.tvTitle);

        tvTitle.setText(getString(R.string.user_list_title, coName));
        readUsers();
        return view;
    }

    /**
     * Method to read the user list from the database
     */

    private void readUsers() {
        userList.clear();
        managerAdminApi.GetUsers(new Callback<ArrayList<ObjectUser>>() {
            @Override
            public void onResponse(@NonNull Call<ArrayList<ObjectUser>> call, @NonNull Response<ArrayList<ObjectUser>> response) {
                ArrayList<ObjectUser> JsonList = response.body();
                for (int i = 0; i < requireNonNull(JsonList).size(); i++) {
                    userList.add(new ObjectUser(
                            JsonList.get(i).getId(),
                            JsonList.get(i).getUsername(),
                            JsonList.get(i).getPassword(),
                            JsonList.get(i).getCreated(),
                            JsonList.get(i).getModified(),
                            JsonList.get(i).getGrade(),
                            JsonList.get(i).getDepartment()
                    ));
                }
                uAdapter.notifyDataSetChanged();
            }

            @Override
            public void onFailure(@NonNull Call<ArrayList<ObjectUser>> call, @NonNull Throwable t) {

            }
        });
    }
    public class UserAdapter extends RecyclerView.Adapter<UserAdapter.UserViewHolder> {
        final private List<ObjectUser> mUserList;
        class UserViewHolder extends RecyclerView.ViewHolder {
            final TextView tvUsername;
            final TextView tvCreated;
            final TextView tvGrade;
            final TextView tvDepartment;
            UserViewHolder(View userView) {
                super(userView);
                tvUsername = userView.findViewById(R.id.tvUsername);
                tvCreated = userView.findViewById(R.id.tvCreated);
                tvGrade = userView.findViewById(R.id.tvGrade);
                tvDepartment = userView.findViewById(R.id.tvDepartment);
            }
        }
        UserAdapter(ArrayList<ObjectUser> userlist) {
            mUserList = userlist;
        }
        @NonNull
        @Override
        public UserViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
            View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.fragment_user_list_item, parent,false);
            return new UserViewHolder(v);
        }
        @Override
        public void onBindViewHolder(@NonNull final UserViewHolder holder, int position) {
            final ObjectUser currentUser = mUserList.get(position);
            holder.tvUsername.setText(currentUser.getUsername());
            holder.tvCreated.setText(currentUser.getCreated());
            holder.tvGrade.setText(currentUser.getGrade());
            holder.tvDepartment.setText(currentUser.getDepartment());
        }
        @Override
        public int getItemCount() {
            //return mUserList.size();
            return 0;
        }
    }
}