/*
 * Copyright (C) 2017 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.dialer.enrichedcall.simulator;

import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import com.android.dialer.common.Assert;
import com.android.dialer.common.LogUtil;
import com.android.dialer.enrichedcall.EnrichedCallComponent;
import com.android.dialer.enrichedcall.EnrichedCallManager;
import com.android.dialer.enrichedcall.EnrichedCallManager.StateChangedListener;

/**
 * Activity used to display Enriched call sessions that are currently in memory, and create new
 * outgoing sessions with various bits of data.
 *
 * <p>This activity will dynamically refresh as new sessions are added or updated, but there's no
 * update when sessions are deleted from memory. Use the refresh button to update the view.
 */
public class EnrichedCallSimulatorActivity extends AppCompatActivity
    implements StateChangedListener, OnClickListener {

  public static Intent newIntent(@NonNull Context context) {
    return new Intent(Assert.isNotNull(context), EnrichedCallSimulatorActivity.class);
  }

  private Button refreshButton;

  private SessionsAdapter sessionsAdapter;

  @Override
  protected void onCreate(@Nullable Bundle bundle) {
    LogUtil.enterBlock("EnrichedCallSimulatorActivity.onCreate");
    super.onCreate(bundle);
    setContentView(R.layout.enriched_call_simulator_activity);
    Toolbar toolbar = findViewById(R.id.toolbar);
    toolbar.setTitle(R.string.enriched_call_simulator_activity);

    refreshButton = findViewById(R.id.refresh);
    refreshButton.setOnClickListener(this);

    RecyclerView recyclerView = findViewById(R.id.sessions_recycler_view);
    recyclerView.setLayoutManager(new LinearLayoutManager(this));

    sessionsAdapter = new SessionsAdapter();
    sessionsAdapter.setSessionStrings(getEnrichedCallManager().getAllSessionsForDisplay());
    recyclerView.setAdapter(sessionsAdapter);
  }

  @Override
  protected void onResume() {
    LogUtil.enterBlock("EnrichedCallSimulatorActivity.onResume");
    super.onResume();
    getEnrichedCallManager().registerStateChangedListener(this);
  }

  @Override
  protected void onPause() {
    LogUtil.enterBlock("EnrichedCallSimulatorActivity.onPause");
    super.onPause();
    getEnrichedCallManager().unregisterStateChangedListener(this);
  }

  @Override
  public void onEnrichedCallStateChanged() {
    LogUtil.enterBlock("EnrichedCallSimulatorActivity.onEnrichedCallStateChanged");
    refreshSessions();
  }

  @Override
  public void onClick(View v) {
    if (v == refreshButton) {
      LogUtil.i("EnrichedCallSimulatorActivity.onClick", "refreshing sessions");
      refreshSessions();
    }
  }

  private void refreshSessions() {
    sessionsAdapter.setSessionStrings(getEnrichedCallManager().getAllSessionsForDisplay());
    sessionsAdapter.notifyDataSetChanged();
  }

  private EnrichedCallManager getEnrichedCallManager() {
    return EnrichedCallComponent.get(this).getEnrichedCallManager();
  }
}