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package org.mozc.android.inputmethod.japanese.util;

import static org.easymock.EasyMock.eq;
import static org.easymock.EasyMock.expect;
import static org.easymock.EasyMock.isA;
import static org.easymock.EasyMock.same;

import org.mozc.android.inputmethod.japanese.testing.InstrumentationTestCaseWithMock;
import org.mozc.android.inputmethod.japanese.testing.Parameter;
import org.mozc.android.inputmethod.japanese.util.ImeSwitcherFactory.ImeSwitcher;
import org.mozc.android.inputmethod.japanese.util.ImeSwitcherFactory.SubtypeImeSwitcher;
import org.mozc.android.inputmethod.japanese.util.ImeSwitcherFactory.SubtypeImeSwitcher.InputMethodManagerProxy;

import android.content.ComponentName;
import android.inputmethodservice.InputMethodService;
import android.os.Binder;
import android.os.IBinder;
import android.test.suitebuilder.annotation.SmallTest;
import android.view.inputmethod.InputMethodInfo;
import android.view.inputmethod.InputMethodSubtype;

import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 */
public class ImeSwitcherFactoryTest extends InstrumentationTestCaseWithMock {

  @SmallTest
  public void testIsVoiceImeAvailable() {
    class TestData extends Parameter {
      final Map<InputMethodInfo, List<InputMethodSubtype>> availableImes;
      final String locale;
      final boolean expectIsVoiceImeAvailable;
      final String expectSwitchId;
      final InputMethodSubtype expectSwitchSubtype;

      public TestData(Map<InputMethodInfo, List<InputMethodSubtype>> availableImes,
          String locale,
          boolean expectIsVoiceImeAvailable,
          String expectSwitchId,
          InputMethodSubtype expectSwitchSubtype) {
        this.availableImes = availableImes;
        this.locale = locale;
        this.expectIsVoiceImeAvailable = expectIsVoiceImeAvailable;
        this.expectSwitchId = expectSwitchId;
        this.expectSwitchSubtype = expectSwitchSubtype;
      }
    }
    InputMethodInfo thirdPatyIme = new InputMethodInfo("3rd.party", "", "", "");
    InputMethodInfo googleIme1 = new InputMethodInfo("com.google.android.testime1", "", "", "");
    InputMethodInfo googleIme2 = new InputMethodInfo("com.google.android.testime2", "", "", "");
    String googleIme1Id =
        new ComponentName(googleIme1.getPackageName(), googleIme1.getServiceName())
            .flattenToShortString();
    String googleIme2Id =
        new ComponentName(googleIme2.getPackageName(), googleIme2.getServiceName())
            .flattenToShortString();

    @SuppressWarnings("deprecation")
    InputMethodSubtype jaKeyboardAux =
        new InputMethodSubtype(0, 0, "ja", "keyboard", "", true, false);
    @SuppressWarnings("deprecation")
    InputMethodSubtype jaVoiceNonaux =
        new InputMethodSubtype(0, 0, "ja", "voice", "", false, false);
    @SuppressWarnings("deprecation")
    InputMethodSubtype jaVoiceAux =
        new InputMethodSubtype(0, 0, "ja", "voice", "", true, false);
    @SuppressWarnings("deprecation")
    InputMethodSubtype enKeyboardAux =
        new InputMethodSubtype(0, 0, "en", "keyboard", "", true, false);
    @SuppressWarnings("deprecation")
    InputMethodSubtype enVoiceNonaux =
        new InputMethodSubtype(0, 0, "en", "voice", "", false, false);
    @SuppressWarnings("deprecation")
    InputMethodSubtype enVoiceAux =
        new InputMethodSubtype(0, 0, "en", "voice", "", true, false);

    Map<InputMethodInfo, List<InputMethodSubtype>> noImes = Collections.emptyMap();
    Map<InputMethodInfo, List<InputMethodSubtype>> only3rdParty =
        Collections.singletonMap(thirdPatyIme, Collections.singletonList(jaVoiceAux));
    Map<InputMethodInfo, List<InputMethodSubtype>> noSubtype =
        Collections.singletonMap(googleIme1, Collections.<InputMethodSubtype>emptyList());
    Map<InputMethodInfo, List<InputMethodSubtype>> noEligibleSubtype =
        Collections.singletonMap(googleIme1,
                                 Arrays.asList(jaKeyboardAux, jaVoiceNonaux,
                                               enKeyboardAux, enVoiceNonaux));
    Map<InputMethodInfo, List<InputMethodSubtype>> jaVoice =
        Collections.singletonMap(googleIme1, Collections.singletonList(jaVoiceAux));
    Map<InputMethodInfo, List<InputMethodSubtype>> jaEnVoice =
        Collections.singletonMap(googleIme1, Arrays.asList(jaVoiceAux, enVoiceAux));
    Map<InputMethodInfo, List<InputMethodSubtype>> jaVoiceIn1EnVoiceIn2 =
        new HashMap<InputMethodInfo, List<InputMethodSubtype>>();
    jaVoiceIn1EnVoiceIn2.put(googleIme1, Collections.singletonList(jaVoiceAux));
    jaVoiceIn1EnVoiceIn2.put(googleIme2, Collections.singletonList(enVoiceAux));

    TestData[] testDataList = {
      new TestData(noImes, "ja", false, null, null),
      new TestData(only3rdParty, "ja", false, null, null),
      new TestData(noSubtype, "ja", false, null, null),
      new TestData(noEligibleSubtype, "ja", false, null, null),
      new TestData(jaVoice, "ja", true, googleIme1Id, jaVoiceAux),
      new TestData(jaVoice, "en", true, googleIme1Id, jaVoiceAux),
      new TestData(jaEnVoice, "ja", true, googleIme1Id, jaVoiceAux),
      new TestData(jaEnVoice, "en", true, googleIme1Id, enVoiceAux),
      new TestData(jaEnVoice, "invalid", true, googleIme1Id, enVoiceAux),
      new TestData(jaVoiceIn1EnVoiceIn2, "ja", true, googleIme1Id, jaVoiceAux),
      new TestData(jaVoiceIn1EnVoiceIn2, "en", true, googleIme2Id, enVoiceAux),
    };

    for (TestData testData : testDataList) {
      resetAll();
      InputMethodManagerProxy subtypeProxy = createMock(InputMethodManagerProxy.class);
      expect(subtypeProxy.getShortcutInputMethodsAndSubtypes())
          .andStubReturn(testData.availableImes);
      if (testData.expectIsVoiceImeAvailable) {
        subtypeProxy.setInputMethodAndSubtype(isA(IBinder.class),
                                              eq(testData.expectSwitchId),
                                              same(testData.expectSwitchSubtype));
      }
      replayAll();
      ImeSwitcher switcher = new SubtypeImeSwitcher(new InputMethodService(), subtypeProxy) {
        @Override
        protected IBinder getToken() {
          return new Binder();
        }
      };
      assertEquals(testData.toString(),
                   testData.expectIsVoiceImeAvailable, switcher.isVoiceImeAvailable());
      switcher.switchToVoiceIme(testData.locale);
      verifyAll();
    }
  }
}