/*
 * Copyright (C) 2016 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.settings.accounts;

import static com.android.settings.accounts.AccountDashboardFragmentTest.ShadowAuthenticationHelper.LABELS;
import static com.android.settings.accounts.AccountDashboardFragmentTest.ShadowAuthenticationHelper.TYPES;
import static com.google.common.truth.Truth.assertThat;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;

import android.app.Activity;
import android.content.Context;
import android.os.UserHandle;
import android.provider.SearchIndexableResource;
import android.text.TextUtils;

import com.android.settings.R;
import com.android.settings.dashboard.SummaryLoader;
import com.android.settingslib.accounts.AuthenticatorHelper;
import com.android.settingslib.drawer.CategoryKey;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.robolectric.Robolectric;
import org.robolectric.RobolectricTestRunner;
import org.robolectric.RuntimeEnvironment;
import org.robolectric.annotation.Config;
import org.robolectric.annotation.Implementation;
import org.robolectric.annotation.Implements;
import org.robolectric.annotation.Resetter;

import java.util.List;

@RunWith(RobolectricTestRunner.class)
public class AccountDashboardFragmentTest {

  private AccountDashboardFragment mFragment;

  @Before
  public void setUp() {
    mFragment = new AccountDashboardFragment();
  }

  @After
  public void tearDown() {
    ShadowAuthenticationHelper.reset();
  }

  @Test
  public void testCategory_isAccount() {
    assertThat(mFragment.getCategoryKey()).isEqualTo(CategoryKey.CATEGORY_ACCOUNT);
  }

  @Test
  @Config(shadows = {
      ShadowAuthenticationHelper.class
  })
  public void updateSummary_hasAccount_shouldDisplayUpTo3AccountTypes() {
    final SummaryLoader loader = mock(SummaryLoader.class);
    final Activity activity = Robolectric.buildActivity(Activity.class).setup().get();

    final SummaryLoader.SummaryProvider provider =
        AccountDashboardFragment.SUMMARY_PROVIDER_FACTORY.createSummaryProvider(activity, loader);
    provider.setListening(true);

    verify(loader).setSummary(provider, LABELS[0] + ", " + LABELS[1] + ", " + LABELS[2]);
  }

  @Test
  @Config(shadows = ShadowAuthenticationHelper.class)
  public void updateSummary_noAccount_shouldDisplayDefaultSummary() {
    ShadowAuthenticationHelper.setEnabledAccount(null);
    final SummaryLoader loader = mock(SummaryLoader.class);
    final Activity activity = Robolectric.buildActivity(Activity.class).setup().get();

    final SummaryLoader.SummaryProvider provider =
        AccountDashboardFragment.SUMMARY_PROVIDER_FACTORY.createSummaryProvider(activity, loader);
    provider.setListening(true);

    verify(loader).setSummary(provider,
        activity.getString(R.string.account_dashboard_default_summary));
  }

  @Test
  @Config(shadows = ShadowAuthenticationHelper.class)
  public void updateSummary_noAccountTypeLabel_shouldNotDisplayNullEntry() {
    final SummaryLoader loader = mock(SummaryLoader.class);
    final Activity activity = Robolectric.buildActivity(Activity.class).setup().get();
    final String[] enabledAccounts = {TYPES[0], "unlabeled_account_type", TYPES[1]};
    ShadowAuthenticationHelper.setEnabledAccount(enabledAccounts);

    final SummaryLoader.SummaryProvider provider =
        AccountDashboardFragment.SUMMARY_PROVIDER_FACTORY.createSummaryProvider(activity, loader);
    provider.setListening(true);

    // should only show the 2 accounts with labels
    verify(loader).setSummary(provider, LABELS[0] + ", " + LABELS[1]);
  }

  @Test
  public void testSearchIndexProvider_shouldIndexResource() {
    final List<SearchIndexableResource> indexRes =
        AccountDashboardFragment.SEARCH_INDEX_DATA_PROVIDER
            .getXmlResourcesToIndex(RuntimeEnvironment.application, true /* enabled */);

    assertThat(indexRes).isNotNull();
    assertThat(indexRes.get(0).xmlResId).isEqualTo(mFragment.getPreferenceScreenResId());
  }

  @Implements(AuthenticatorHelper.class)
  public static class ShadowAuthenticationHelper {

    static final String[] TYPES = {"type1", "type2", "type3", "type4"};
    static final String[] LABELS = {"LABEL1", "LABEL2", "LABEL3", "LABEL4"};
    private static String[] sEnabledAccount = TYPES;

    public void __constructor__(Context context, UserHandle userHandle,
        AuthenticatorHelper.OnAccountsUpdateListener listener) {
    }

    private static void setEnabledAccount(String[] enabledAccount) {
      sEnabledAccount = enabledAccount;
    }

    @Resetter
    public static void reset() {
      sEnabledAccount = TYPES;
    }

    @Implementation
    public String[] getEnabledAccountTypes() {
      return sEnabledAccount;
    }

    @Implementation
    public CharSequence getLabelForType(Context context, final String accountType) {
      if (TextUtils.equals(accountType, TYPES[0])) {
        return LABELS[0];
      } else if (TextUtils.equals(accountType, TYPES[1])) {
        return LABELS[1];
      } else if (TextUtils.equals(accountType, TYPES[2])) {
        return LABELS[2];
      } else if (TextUtils.equals(accountType, TYPES[3])) {
        return LABELS[3];
      }
      return null;
    }
  }
}