/*
 * 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.setupwizardlib.items;

import static com.google.common.truth.Truth.assertThat;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.robolectric.RuntimeEnvironment.application;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import com.android.setupwizardlib.R;
import com.android.setupwizardlib.view.CheckableLinearLayout;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.robolectric.RobolectricTestRunner;
import org.robolectric.annotation.Config;

@RunWith(RobolectricTestRunner.class)
@Config(sdk = {Config.OLDEST_SDK, Config.NEWEST_SDK})
public class ExpandableSwitchItemTest {

  private TextView mSummaryView;
  private ExpandableSwitchItem mItem;

  @Before
  public void setUp() {
    mItem = new ExpandableSwitchItem();
    mItem.setTitle("TestTitle");
    mItem.setCollapsedSummary("TestSummary");
    mItem.setExpandedSummary("TestSummaryExpanded");
  }

  @Test
  public void testInitialState() {
    View view = createLayout();
    mItem.onBindView(view);

    assertEquals(
        "Collapsed summary should be TestSummary", "TestSummary", mItem.getCollapsedSummary());
    assertEquals(
        "Expanded summary should be TestSummaryExpanded",
        "TestSummaryExpanded",
        mItem.getExpandedSummary());

    assertEquals("Should be collapsed initially", "TestSummary", mItem.getSummary());
    assertEquals(
        "Summary view should display collapsed summary", "TestSummary", mSummaryView.getText());

    assertFalse("Expandable switch item itself should not be focusable", view.isFocusable());

    View switchContent = view.findViewById(R.id.suw_items_expandable_switch_content);
    assertThat(switchContent).isInstanceOf(CheckableLinearLayout.class);
    assertThat(switchContent.isFocusable()).named("expandable content focusable").isTrue();
  }

  @Test
  public void testExpanded() {
    View view = createLayout();
    mItem.onBindView(view);

    mItem.setExpanded(true);

    assertEquals(
        "Collapsed summary should be TestSummary", "TestSummary", mItem.getCollapsedSummary());
    assertEquals(
        "Expanded summary should be TestSummaryExpanded",
        "TestSummaryExpanded",
        mItem.getExpandedSummary());

    assertTrue("Should be expanded", mItem.isExpanded());
    assertEquals(
        "getSummary should be expanded summary", "TestSummaryExpanded", mItem.getSummary());
  }

  @Test
  public void testCollapsed() {
    View view = createLayout();
    mItem.onBindView(view);

    mItem.setExpanded(true);
    assertTrue("Should be expanded", mItem.isExpanded());

    mItem.setExpanded(false);

    assertEquals(
        "Collapsed summary should be TestSummary", "TestSummary", mItem.getCollapsedSummary());
    assertEquals(
        "Expanded summary should be TestSummaryExpanded",
        "TestSummaryExpanded",
        mItem.getExpandedSummary());

    assertFalse("Should be expanded", mItem.isExpanded());
    assertEquals("getSummary should be collapsed summary", "TestSummary", mItem.getSummary());
  }

  @Test
  public void testClick() {
    View view = createLayout();
    mItem.onBindView(view);

    assertFalse("Should not be expanded initially", mItem.isExpanded());

    final View content = view.findViewById(R.id.suw_items_expandable_switch_content);
    content.performClick();
    assertTrue("Should be expanded after clicking", mItem.isExpanded());

    content.performClick();
    assertFalse("Should be collapsed again after clicking", mItem.isExpanded());
  }

  @Test
  public void testDrawableState() {
    final View view = LayoutInflater.from(application).inflate(mItem.getLayoutResource(), null);
    mItem.onBindView(view);

    final View titleView = view.findViewById(R.id.suw_items_title);
    assertThat(titleView.getDrawableState())
        .asList()
        .named("Drawable state")
        .doesNotContain(android.R.attr.state_checked);

    mItem.setExpanded(true);
    mItem.onBindView(view);
    assertThat(titleView.getDrawableState())
        .asList()
        .named("Drawable state")
        .contains(android.R.attr.state_checked);

    mItem.setExpanded(false);
    mItem.onBindView(view);
    assertThat(titleView.getDrawableState())
        .asList()
        .named("Drawable state")
        .doesNotContain(android.R.attr.state_checked);
  }

  private ViewGroup createLayout() {
    ViewGroup root =
        (ViewGroup)
            LayoutInflater.from(application).inflate(R.layout.suw_items_expandable_switch, null);
    mSummaryView = root.findViewById(R.id.suw_items_summary);

    return root;
  }
}