🔵🦷 Initial, proof of concept, alpha version of the bluetooth integration

[shankari]

Includes:

• basic monitoring and ranging on iOS
• geofence-triggered ranging on android
• FSM changes to, in the fleet version, only read location in proximity to BLE
• prompting for bluetooth permissions
• wrapper class for bluetooth
• a javascript function to mock BLE objects and aid in testing

Related usercache change:
e-mission/cordova-usercache#51

Related UI changes:
e-mission/e-mission-phone#1144

[shankari]

This works, and has been deployed in the alpha version. It passes all the CI checks. However, when trying to use it with in a package that is not emission, we run into an issue where the R package is not handled properly in the hook.

$ npx cordova plugin rm cordova-plugin-em-datacollection
Uninstalling cordova-plugin-em-datacollection from android
Subproject Path: CordovaLib
Subproject Path: app
Uninstalling cordova-plugin-em-datacollection from ios
Running command: pod install --verbose
Removing "cordova-plugin-em-datacollection"
...
...platforms/android/app/src/main/java/edu/berkeley/eecs/emission/cordova/tracker/bluetooth/BluetoothMonitoringService.java:15: error: cannot find symbol
import edu.berkeley.eecs.emission.R;
                                 ^
  symbol:   class R
  location: package edu.berkeley.eecs.emission
...platforms/android/app/src/main/java/edu/berkeley/eecs/emission/cordova/tracker/location/TripDiaryStateMachineForegroundService.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
1 error

Note that this is the only java file which is affected. We need to see why this is not handled the same way as the others.

[shankari]

This is because we don't check for the import statement, we check for the usage of the package.

const R_RE = /[^\.\w]R\./;
> "import edu.berkeley.eecs.emission.R;".match(R_RE);
null
> "import edu.berkeley.eecs.emission.R;".match(/emission/);
[
  'emission',
  index: 25,
  input: 'import edu.berkeley.eecs.emission.R;',
  groups: undefined
]
> " R.string.transition_ble_beacon".match(R_RE);
[
  ' R.',
  index: 0,
  input: ' R.string.transition_ble_beacon',
  groups: undefined
]

So the problem is that we are not using the variable anywhere. Let's add a simple statement to use it...

[shankari]

After adding code to save the entries

...
                    UserCacheFactory.getUserCache(BluetoothMonitoringService.this)
                        .putSensorData(R.string.key_usercache_bluetooth_ble, currWrapper);
...

we get

For file .../plugins/cordova-plugin-em-datacollection/src/android/bluetooth/BluetoothMonitoringService.java Results of match checks: R = (R. BUILDCONFIG = null MAINACT = null
file BluetoothMonitoringService.java needs to be rewritten, checking package