/*
* This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of
* the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* Copyright (c) 2014 Digi International Inc., All Rights Reserved.
*/
package com.digi.android.wva.fragments;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.os.Bundle;
import android.os.Handler;
import android.preference.PreferenceManager;
import android.support.v4.app.DialogFragment;
import android.text.Editable;
import android.text.TextUtils;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;
import com.digi.android.wva.R;
import com.digi.android.wva.WvaApplication;
import com.digi.android.wva.adapters.EndpointsAdapter;
import com.digi.android.wva.adapters.LogAdapter;
import com.digi.android.wva.model.EndpointConfiguration;
import com.digi.android.wva.model.LogEvent;
import com.digi.wva.async.AlarmType;
import com.digi.wva.async.WvaCallback;
import java.util.Locale;
/**
* A {@link DialogFragment} subclass which displays a small
* form which is used to specify the desired subscriptions and alarms for
* a given endpoint.
*
* <p>An important thing to note about the EndpointsOptionDialog, and
* indeed, the entirety of the sample app's modeling of subscriptions and alarms,
* is that the app's displayed status of alarms and subscriptions is NEVER
* guaranteed to accurately reflect the state of alarms and subscriptions on
* the device. That is to say, if you open an options dialog, attempt to
* subscribe to an endpoint, and that subscription attempt fails, the options
* dialog (and its underlying EndpointConfiguration) will still say
* "subscribed", even though in reality you are not subscribed.</p>
*/
public class EndpointOptionsDialog extends DialogFragment {
private static final String TAG = "EndpointOptionsDialog";
private EndpointConfiguration mConfig;
private Handler mHandler;
private String[] alarmTypes;
/**
* Set the {@link EndpointConfiguration} whose status will be displayed
* in this dialog
* @param config the {@link EndpointConfiguration} to use
* @return this, for chained method calls
*/
public EndpointOptionsDialog setConfig(EndpointConfiguration config) {
mConfig = config;
return this;
}
/**
* Add a log message to the log adapter.
*
* <p>This method is protected, rather than private, due to a bug between JaCoCo and
* the Android build tools which causes the instrumented bytecode to be invalid when this
* method is private:
* <a href="http://stackoverflow.com/questions/17603192/dalvik-transformation-using-wrong-invoke-opcode" target="_blank">see StackOverflow question.</a>
* </p>
* @param message the message to log
*/
protected void simpleLog(final String message) {
mHandler.post(new Runnable() {
@Override
public void run() {
LogAdapter.getInstance().add(new LogEvent(message, null));
}
});
}
/**
* <p>This method is protected, rather than private, due to a bug between JaCoCo and
* the Android build tools which causes the instrumented bytecode to be invalid when this
* method is private:
* <a href="http://stackoverflow.com/questions/17603192/dalvik-transformation-using-wrong-invoke-opcode" target="_blank">see StackOverflow question.</a>
* </p>
*/
protected WvaCallback<Void> makeWsCallback(final Context context, final String succeedText,
final String failText) {
return new WvaCallback<Void>() {
@Override
public void onResponse(Throwable error, Void response) {
if (error != null) {
Log.e(TAG, failText, error);
Toast.makeText(context, failText + ": " + error, Toast.LENGTH_SHORT).show();
simpleLog(failText);
} else {
Log.d(TAG, succeedText);
Toast.makeText(context, succeedText, Toast.LENGTH_SHORT).show();
simpleLog(succeedText);
}
}
};
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
// getResources() must be called after the fragment has been
// attached to an activity.
alarmTypes = getResources().getStringArray(R.array.alarm_types);
WvaApplication app = (WvaApplication)activity.getApplication();
mHandler = app.getHandler();
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
if (mConfig == null) {
// Why this would happen, I don't know. But okay...
return;
}
outState.putParcelable("config", mConfig);
}
protected void subscribe(String endpoint, int interval) {
((WvaApplication) getActivity().getApplication())
.subscribeToEndpoint(endpoint, interval,
makeWsCallback(getActivity().getApplicationContext(), "Subscribed to " + endpoint,
"Failed to subscribe to " + endpoint));
}
protected void unsubscribe(String endpoint) {
((WvaApplication)getActivity().getApplication())
.unsubscribe(endpoint,
makeWsCallback(getActivity().getApplicationContext(), "Unsubscribed from " + endpoint,
"Failed to unsubscribe from " + endpoint));
}
protected void createAlarm(String endpoint, AlarmType type, double threshold) {
((WvaApplication)getActivity().getApplication())
.createAlarm(endpoint, type, threshold, 10,
makeWsCallback(getActivity().getApplicationContext(), "Created alarm for " + endpoint,
"Failed to create alarm for " + endpoint));
}
protected void removeAlarm(String endpoint, AlarmType type) {
((WvaApplication)getActivity().getApplication())
.removeAlarm(endpoint, type,
makeWsCallback(getActivity().getApplicationContext(), "Removed alarm from " + endpoint,
"Failed to remove alarm from " + endpoint));
}
protected boolean shouldDisableAlarmThreshold(int typePos) {
return alarmTypes != null && (typePos < 0 || alarmTypes[typePos].equals("Change"));
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
if (mConfig == null && savedInstanceState == null) {
Log.e(TAG, "mConfig is null, not showing dialog!");
return null;
}
LayoutInflater inf = getActivity().getLayoutInflater();
View v = inf.inflate(R.layout.dialog_endpoint_options, null);
// Suppresses warnings, and ensures the layout exists.
assert v != null;
final TextView subIntervalTV = (TextView)v.findViewById(R.id.textView_interval);
final TextView alarmInfoTV = (TextView) v.findViewById(R.id.alarm_info);
final CheckBox subscribedCB = (CheckBox)v.findViewById(R.id.subscribedCheckbox);
final CheckBox alarmCB = (CheckBox)v.findViewById(R.id.alarmCheckbox);
final EditText subInterval = (EditText)v.findViewById(R.id.subscriptionInterval);
final EditText alarmThreshold = (EditText)v.findViewById(R.id.alarmThreshold);
final Spinner typeSpinner = (Spinner)v.findViewById(R.id.alarmTypeSpinner);
final LinearLayout makeAlarmSection = (LinearLayout)v.findViewById(R.id.section_make_alarm);
final LinearLayout showAlarmSection = (LinearLayout) v.findViewById(R.id.section_show_alarm);
//final CheckBox dcSendCB = (CheckBox)v.findViewById(R.id.dcPushCheckbox);
String alarmInfo = "No alarm yet";
boolean isSubscribed = false;
String endpointName = "UNKNOWN";
int sinterval = 10;
boolean alarmCreated = false;
double threshold = 0;
int alarmtypeidx = 0;
boolean isSendingToDC = false;
if (savedInstanceState != null && savedInstanceState.containsKey("config")) {
mConfig = savedInstanceState.getParcelable("config");
}
if (mConfig != null) {
endpointName = mConfig.getEndpoint();
alarmInfo = mConfig.getAlarmSummary();
if (mConfig.getSubscriptionConfig() != null) {
isSubscribed = mConfig.getSubscriptionConfig().isSubscribed();
sinterval = mConfig.getSubscriptionConfig().getInterval();
isSendingToDC = mConfig.shouldBePushedToDeviceCloud();
} else {
// Not subscribed; default interval value from preferences.
String i = PreferenceManager.getDefaultSharedPreferences(getActivity()).getString("pref_default_interval", "0");
try {
sinterval = Integer.parseInt(i);
} catch (NumberFormatException e) {
Log.d(TAG, "Failed to parse default interval from preferences: " + i);
sinterval = 0;
}
}
if (mConfig.getAlarmConfig() != null) {
alarmCreated = mConfig.getAlarmConfig().isCreated();
threshold = mConfig.getAlarmConfig().getThreshold();
String typestr = AlarmType.makeString(mConfig.getAlarmConfig().getType());
for (int i = 0; i < alarmTypes.length; i++) {
if (alarmTypes[i].toLowerCase(Locale.US).equals(typestr))
alarmtypeidx = i;
}
}
}
// Set up event listeners on EditText and CheckBox items
subscribedCB.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
subInterval.setEnabled(isChecked);
subIntervalTV.setEnabled(isChecked);
}
});
alarmCB.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
typeSpinner.setEnabled(isChecked);
alarmThreshold.setEnabled(false);
// If type spinner is set to Change, we want threshold disabled again
if (isChecked) {
alarmThreshold.setEnabled(
!shouldDisableAlarmThreshold(
typeSpinner.getSelectedItemPosition()));
}
}
});
typeSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int position, long id) {
if (alarmCB.isChecked() && shouldDisableAlarmThreshold(position))
alarmThreshold.setEnabled(false);
else if (!alarmCB.isChecked())
alarmThreshold.setEnabled(false);
else
alarmThreshold.setEnabled(true);
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});
subIntervalTV.setEnabled(false);
subInterval.setEnabled(false);
alarmThreshold.setEnabled(false);
typeSpinner.setEnabled(false);
alarmInfoTV.setText(alarmInfo);
// Click checkboxes, show data depending on if subscription or alarm
// has been added already
if (isSubscribed)
subscribedCB.performClick();
if (alarmCreated) {
showAlarmSection.setVisibility(View.VISIBLE);
makeAlarmSection.setVisibility(View.GONE);
alarmCB.setText("Remove alarm");
} else {
makeAlarmSection.setVisibility(View.VISIBLE);
showAlarmSection.setVisibility(View.GONE);
alarmCB.setText("Create alarm");
}
//dcSendCB.setChecked(isSendingToDC);
subInterval.setText(Integer.toString(sinterval));
alarmThreshold.setText(Double.toString(threshold));
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(
getActivity(), R.array.alarm_types,
android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
typeSpinner.setAdapter(adapter);
typeSpinner.setSelection(alarmtypeidx);
DialogInterface.OnClickListener clickListener = new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int i) {
// Fetch the EndpointsAdapter's configuration for this endpoint.
// (We might have gotten mConfig from the saved instance bundle)
EndpointConfiguration cfg = EndpointsAdapter.getInstance().findEndpointConfiguration(mConfig.getEndpoint());
// Set whether this endpoint's data should be pushed to Device Cloud
if (cfg != null) {
//cfg.setPushToDeviceCloud(dcSendCB.isChecked());
cfg.setPushToDeviceCloud(false);
}
// Handle (un)subscribing
if (isUnsubscribing(subscribedCB.isChecked())) {
unsubscribe(mConfig.getEndpoint());
} else if (subscribedCB.isChecked()) {
if (handleMakingSubscription(subInterval)) {
// Subscription was successful... most likely.
Log.d(TAG, "Probably subscribed to endpoint.");
} else {
// Invalid interval.
Toast.makeText(getActivity(),
getString(R.string.configure_endpoints_toast_invalid_sub_interval),
Toast.LENGTH_SHORT).show();
}
}
// Handle adding/removing alarm as necessary
if (isRemovingAlarm(alarmCB.isChecked())) {
removeAlarm(mConfig.getEndpoint(), mConfig.getAlarmConfig().getType());
} else if (alarmCB.isChecked()) {
Editable thresholdText = alarmThreshold.getText();
String thresholdString;
if (thresholdText == null)
thresholdString = "";
else
thresholdString = thresholdText.toString();
double threshold;
try {
threshold = Double.parseDouble(thresholdString);
}catch (NumberFormatException e) {
Toast.makeText(getActivity(),
getString(R.string.configure_endpoints_invalid_threshold),
Toast.LENGTH_SHORT).show();
return;
}
int alarmidx = typeSpinner.getSelectedItemPosition();
if (alarmidx == -1) {
// But... how?
Log.wtf(TAG, "alarm type index -1 ?");
return;
}
String type = alarmTypes[alarmidx];
AlarmType atype = AlarmType.fromString(type);
createAlarm(mConfig.getEndpoint(), atype, threshold);
}
dialog.dismiss();
}
};
return new AlertDialog.Builder(getActivity())
.setView(v)
.setTitle("Endpoint: " + endpointName)
.setPositiveButton("Save", clickListener)
.setNegativeButton(android.R.string.cancel,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// Cancel means just dismiss the dialog.
dialog.dismiss();
}
}
).create();
}
protected boolean isUnsubscribing(boolean checked) {
return (mConfig.isSubscribed() && !checked);
}
protected boolean isRemovingAlarm(boolean checked) {
return (mConfig.hasCreatedAlarm() && checked);
}
protected boolean isSubscribing() {
return (!mConfig.isSubscribed());
}
protected boolean subscriptionIntervalChanged(int newinterval) {
return mConfig.isSubscribed() &&
(mConfig.getSubscriptionConfig().getInterval() != newinterval);
}
/**
* @param subInterval EditText holding user input for interval
* @return true if subscription was valid (and probably worked), false
* if the interval is invalid
*/
protected boolean handleMakingSubscription(EditText subInterval) {
// Shouldn't need to worry about NumberFormatException -
// the EditText is set to type numeric
Editable intervalText = subInterval.getText();
String interval;
if (intervalText == null)
interval = "";
else
interval = intervalText.toString();
if (TextUtils.isEmpty(interval) || !TextUtils.isDigitsOnly(interval)) {
return false;
}
int iinterval;
try {
iinterval = Integer.valueOf(interval);
} catch (NumberFormatException e) {
return false;
}
if (isSubscribing() || subscriptionIntervalChanged(iinterval)) {
subscribe(mConfig.getEndpoint(), iinterval);
}
return true;
}
}