package com.patloew.rxfit;

import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.fitness.Fitness;
import com.google.android.gms.fitness.data.DataPoint;
import com.google.android.gms.fitness.request.OnDataPointListener;
import com.google.android.gms.fitness.request.SensorRequest;

import java.util.concurrent.TimeUnit;

import io.reactivex.ObservableEmitter;

/* Copyright 2016 Patrick Löwenstein
 *
 * 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. */
class SensorsDataPointObservable extends BaseObservable<DataPoint> {

    final SensorRequest sensorRequest;
    private OnDataPointListener dataPointListener = null;

    SensorsDataPointObservable(RxFit rxFit, SensorRequest sensorRequest, Long timeout, TimeUnit timeUnit) {
        super(rxFit, timeout, timeUnit);
        this.sensorRequest = sensorRequest;
    }

    @Override
    protected void onGoogleApiClientReady(GoogleApiClient apiClient, final ObservableEmitter<DataPoint> subscriber) {
        dataPointListener = subscriber::onNext;

        setupFitnessPendingResult(
                Fitness.SensorsApi.add(apiClient, sensorRequest, dataPointListener),
                new StatusErrorResultCallBack(subscriber)
        );
    }

    @Override
    protected void onUnsubscribed(GoogleApiClient apiClient) {
        Fitness.SensorsApi.remove(apiClient, dataPointListener);
    }
}
