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path: root/app/src/main/java/com/javispedro/rempe/Device.java
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package com.javispedro.rempe;

import android.content.Context;
import android.util.Log;

import com.dsi.ant.plugins.antplus.pcc.AntPlusEnvironmentPcc;
import com.dsi.ant.plugins.antplus.pcc.defines.DeviceState;
import com.dsi.ant.plugins.antplus.pcc.defines.EventFlag;
import com.dsi.ant.plugins.antplus.pcc.defines.RequestAccessResult;
import com.dsi.ant.plugins.antplus.pccbase.AntPluginPcc;
import com.dsi.ant.plugins.antplus.pccbase.AntPlusCommonPcc;
import com.dsi.ant.plugins.antplus.pccbase.PccReleaseHandle;

import java.math.BigDecimal;
import java.util.EnumSet;

public class Device {
    private final static String TAG = "Device";

    private final int mDeviceNumber;

    private PccReleaseHandle<AntPlusEnvironmentPcc> mEnvPccHandle;
    private AntPlusEnvironmentPcc mEnvPcc;

    private String mDeviceName;

    private final Reading mLastReading = new Reading();
    private int mLastRssi;
    private RequestAccessResult mConnectResult;
    private DeviceState mCurState;

    public interface DeviceObserver {
        void onDeviceInfoChanged();
        void onDeviceStateChanged();
        void onDeviceNewReading();
        void onDeviceRssiChanged();
    }
    private DeviceObserver mObserver;

    public Device(int deviceNumber) {
        mDeviceNumber = deviceNumber;
        mDeviceName = "dev-" + deviceNumber;
        mConnectResult = RequestAccessResult.SUCCESS;
        mCurState = DeviceState.DEAD;
    }

    public void connect(Context context) {
        Log.d(TAG, "connect (" + mDeviceNumber + ")");
        if (mEnvPccHandle != null) {
            Log.w(TAG, "Already connected");
        }
        mConnectResult = RequestAccessResult.SUCCESS; // Clear old connect result
        mCurState = DeviceState.SEARCHING;
        if (mObserver != null) {
            mObserver.onDeviceStateChanged();
        }
        mEnvPccHandle = AntPlusEnvironmentPcc.requestAccess(context, mDeviceNumber, 0, mResultReceiver, mDeviceStateChangeReceiver);
    }

    public void close() {
        Log.d(TAG, "close (" + mDeviceNumber + ")");
        if (mEnvPcc != null) {
            mEnvPcc.subscribeTemperatureDataEvent(null);
            mEnvPcc.subscribeRssiEvent(null);
            mEnvPcc.releaseAccess();
            mEnvPcc = null;
        }
        if (mEnvPccHandle != null) {
            mEnvPccHandle.close();
            mEnvPccHandle = null;
        }
        mConnectResult = RequestAccessResult.SUCCESS;
        mCurState = DeviceState.DEAD;
        if (mObserver != null) {
            mObserver.onDeviceStateChanged();
        }
    }

    public void setObserver(DeviceObserver observer) {
        mObserver = observer;
    }

    public boolean isOpen() {
        return mEnvPccHandle != null;
    }

    @Override
    public String toString() {
        return super.toString() + "(" + mDeviceNumber + ")";
    }

    private void setEnvPcc(AntPlusEnvironmentPcc envPcc) {
        if (mEnvPcc != null) {
            mEnvPcc.subscribeTemperatureDataEvent(null);
            mEnvPcc.subscribeRssiEvent(null);
            mEnvPcc.releaseAccess();
            mEnvPcc = null;
        }
        mEnvPcc = envPcc;
        final String deviceName = mEnvPcc.getDeviceName();
        final int deviceNumber = mEnvPcc.getAntDeviceNumber();
        Log.d(TAG, "handleConnection deviceName=" + deviceName + " deviceNumber=" + deviceNumber);
        if (deviceNumber != mDeviceNumber) {
            Log.e(TAG, "device number mismatch");
        }
        mDeviceName = deviceName;
        mEnvPcc.subscribeTemperatureDataEvent(mTemperatureDataReceiver);
        mEnvPcc.subscribeRssiEvent(mRssiReceiver);
        if (mObserver != null) {
            mObserver.onDeviceInfoChanged();
        }
    }

    public int getDeviceNumber() {
        return mDeviceNumber;
    }

    public String getDeviceName() {
        return mDeviceName;
    }

    public Reading getLastReading() {
        return mLastReading;
    }

    public int getLastRssi() {
        return mLastRssi;
    }

    public DeviceState getCurrentDeviceState() {
        return mCurState;
    }

    public RequestAccessResult getConnectResult() {
        return mConnectResult;
    }

    private final AntPluginPcc.IPluginAccessResultReceiver<AntPlusEnvironmentPcc> mResultReceiver = new AntPluginPcc.IPluginAccessResultReceiver<AntPlusEnvironmentPcc>() {
        @Override
        public void onResultReceived(AntPlusEnvironmentPcc result, RequestAccessResult resultCode, DeviceState initialDeviceState) {
            Log.d(TAG, "onResultReceived resultCode=" + resultCode + " initialDeviceState=" + initialDeviceState);
            mConnectResult = resultCode;
            mCurState = initialDeviceState;
            if (resultCode.equals(RequestAccessResult.SUCCESS)) {
                setEnvPcc(result);
            }
            if (mObserver != null) {
                mObserver.onDeviceStateChanged();
            }

            if (resultCode.equals(RequestAccessResult.SEARCH_TIMEOUT)) {
                Log.d(TAG, "timeout");
            }
        }
    };

    private final AntPluginPcc.IDeviceStateChangeReceiver mDeviceStateChangeReceiver = new AntPluginPcc.IDeviceStateChangeReceiver() {
        @Override
        public void onDeviceStateChange(DeviceState newDeviceState) {
            Log.d(TAG, "onDeviceStateChange newDeviceState=" + newDeviceState);
            mCurState = newDeviceState;
            if (mObserver != null) {
                mObserver.onDeviceStateChanged();
            }
        }
    };

    private final AntPlusEnvironmentPcc.ITemperatureDataReceiver mTemperatureDataReceiver = new AntPlusEnvironmentPcc.ITemperatureDataReceiver() {
        @Override
        public void onNewTemperatureData(long estTimestamp, EnumSet<EventFlag> eventFlags, BigDecimal currentTemperature, long eventCount, BigDecimal lowLast24Hours, BigDecimal highLast24Hours) {
            Log.d(TAG, "onNewTemperatureData");
            mLastReading.timestamp = estTimestamp;
            mLastReading.temperature = currentTemperature;
            mLastReading.highLast24Hours = highLast24Hours;
            mLastReading.lowLast24Hours = lowLast24Hours;
            if (mObserver != null) {
                mObserver.onDeviceNewReading();
            }
        }
    };

    private final AntPlusCommonPcc.IRssiReceiver mRssiReceiver = new AntPlusCommonPcc.IRssiReceiver() {
        @Override
        public void onRssiData(long estTimestamp, EnumSet<EventFlag> eventFlags, int rssi) {
            Log.d(TAG, "onRssiData rssi=" + rssi);
            mLastRssi = rssi;
            if (mObserver != null) {
                mObserver.onDeviceRssiChanged();
            }
        }
    };

    public static String deviceStateToString(Context context, DeviceState state) {
        switch (state) {
            case DEAD:
                return context.getString(R.string.state_dead);
            case CLOSED:
                return context.getString(R.string.state_closed);
            case SEARCHING:
                return context.getString(R.string.state_searching);
            case TRACKING:
                return context.getString(R.string.state_tracking);
            case PROCESSING_REQUEST:
                return context.getString(R.string.state_processing);
            case UNRECOGNIZED:
                return context.getString(R.string.state_unrecognized);
            default:
                return context.getString(R.string.state_unknown);
        }
    }

    public static String connectionRequestAccessResultToString(Context context, RequestAccessResult result) {
        switch (result) {
            case SUCCESS:
                return context.getString(R.string.connection_result_success);
            case USER_CANCELLED:
                return context.getString(R.string.connection_result_user_cancelled);
            case CHANNEL_NOT_AVAILABLE:
                return context.getString(R.string.connection_result_channel_not_available);
            case OTHER_FAILURE:
                return context.getString(R.string.connection_result_other_failure);
            case DEPENDENCY_NOT_INSTALLED:
                return context.getString(R.string.connection_result_dependency_not_installed);
            case DEVICE_ALREADY_IN_USE:
                return context.getString(R.string.connection_result_device_already_in_use);
            case SEARCH_TIMEOUT:
                return context.getString(R.string.connection_result_search_timeout);
            case ALREADY_SUBSCRIBED:
                return context.getString(R.string.connection_result_already_subscribed);
            case BAD_PARAMS:
                return context.getString(R.string.connection_result_bad_params);
            case ADAPTER_NOT_DETECTED:
                return context.getString(R.string.connection_result_adapter_not_detected);
            case UNRECOGNIZED:
                return context.getString(R.string.connection_result_unrecognized);
            default:
                return context.getString(R.string.connection_result_unknown);
        }
    }
}