package com.mapbox.mapboxsdk.maps;

import android.Manifest;
import android.content.Context;
import android.content.pm.PackageManager;
import android.graphics.PointF;

import com.mapbox.mapboxsdk.constants.MyLocationTracking;
import com.mapbox.mapboxsdk.maps.widgets.MyLocationView;

import org.junit.Before;
import org.junit.Test;
import org.mockito.InjectMocks;

import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import static org.mockito.ArgumentMatchers.anyInt;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.Mockito.atLeast;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

public class TrackingSettingsTest {

  @InjectMocks
  MyLocationView myLocationView = mock(MyLocationView.class);

  @InjectMocks
  UiSettings uiSettings = mock(UiSettings.class);

  @InjectMocks
  FocalPointChangeListener focalPointChangeListener = mock(FocalPointChangeListener.class);

  @InjectMocks
  TrackingSettings.CameraZoomInvalidator zoomInvalidator = mock(TrackingSettings.CameraZoomInvalidator.class);

  private TrackingSettings trackingSettings;

  @Before
  public void beforeTest() {
    trackingSettings = new TrackingSettings(myLocationView, uiSettings, focalPointChangeListener, zoomInvalidator);
  }

  @Test
  public void testSanity() {
    assertNotNull("trackingsettings should not be null", trackingSettings);
  }

  @Test
  public void testDismissTrackingModesOnGesture() {
    trackingSettings.setDismissAllTrackingOnGesture(false);
    assertFalse("DismissTrackingOnGesture should be false", trackingSettings.isAllDismissTrackingOnGesture());
  }

  @Test
  public void testValidateGesturesForTrackingModes() {
    trackingSettings.setDismissAllTrackingOnGesture(false);
    trackingSettings.setMyLocationTrackingMode(MyLocationTracking.TRACKING_FOLLOW);
    assertFalse("DismissTrackingOnGesture should be false", trackingSettings.isAllDismissTrackingOnGesture());
  }

  @Test
  public void testMyLocationEnabled() {
    // setup mock context to provide accepted location permission
    Context context = mock(Context.class);
    when(myLocationView.getContext()).thenReturn(context);
    when(context.checkPermission(eq(Manifest.permission.ACCESS_COARSE_LOCATION), anyInt(),
      anyInt())).thenReturn(PackageManager.PERMISSION_GRANTED);

    assertFalse("Location should be disabled by default.", trackingSettings.isMyLocationEnabled());
    trackingSettings.setMyLocationEnabled(true);
    assertTrue("Location should be enabled", trackingSettings.isMyLocationEnabled());
  }

  @Test
  public void testCameraZoomTo2forTracking() {
    trackingSettings.setMyLocationTrackingMode(MyLocationTracking.TRACKING_FOLLOW);
    verify(zoomInvalidator, atLeast(1)).zoomTo(2.0);
  }

  @Test
  public void testFocalPointChangeForTracking() {
    final float centerX = 32.3f;
    final float centerY = 46.3f;
    final PointF pointF = new PointF(centerX, centerY);
    when(myLocationView.getCenter()).thenReturn(pointF);

    trackingSettings.setMyLocationTrackingMode(MyLocationTracking.TRACKING_FOLLOW);
    verify(focalPointChangeListener, atLeast(1)).onFocalPointChanged(pointF);
  }

  @Test
  public void testFocalPointChangeForNonTracking() {
    trackingSettings.setMyLocationTrackingMode(MyLocationTracking.TRACKING_NONE);
    verify(focalPointChangeListener, atLeast(1)).onFocalPointChanged(null);
  }
}