From df8c290442cbcc144854b10d649388e3c72dc739 Mon Sep 17 00:00:00 2001
From: Andreas Shimokawa <shimokawa@fsfe.org>
Date: Thu, 12 Feb 2015 16:00:45 +0100
Subject: [PATCH] Implement music control (play, pause, next, previous). Try to
 make code a bit less Pebble centric.

---
 app/src/main/AndroidManifest.xml              |  5 ++
 .../BluetoothCommunicationService.java        | 28 +++++++-
 .../gadgetbridge/DebugActivity.java           |  8 +--
 .../gadgetbridge/GBCommand.java               | 20 ++++++
 .../gadgetbridge/GBCommandBundle.java         |  7 ++
 .../gadgetbridge/GBCommandClass.java          |  6 ++
 .../gadgetbridge/GBMusicControlReceiver.java  | 50 ++++++++++++++
 .../gadgetbridge/PebbleProtocol.java          | 65 +++++++++++++++----
 .../gadgetbridge/PhoneCallReceiver.java       | 18 ++---
 .../gadgetbridge/StopServiceReceiver.java     |  3 +-
 10 files changed, 181 insertions(+), 29 deletions(-)
 create mode 100644 app/src/main/java/nodomain/freeyourgadget/gadgetbridge/GBCommand.java
 create mode 100644 app/src/main/java/nodomain/freeyourgadget/gadgetbridge/GBCommandBundle.java
 create mode 100644 app/src/main/java/nodomain/freeyourgadget/gadgetbridge/GBCommandClass.java
 create mode 100644 app/src/main/java/nodomain/freeyourgadget/gadgetbridge/GBMusicControlReceiver.java

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index c38ddbb8d8..7aa58bb065 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -72,6 +72,11 @@
         </receiver>
 
         <receiver android:name=".StopServiceReceiver" />
+        <receiver android:name=".GBMusicControlReceiver">
+            <intent-filter>
+                <action android:name="nodomain.freeyourgadget.gadgetbridge.musiccontrol" />
+            </intent-filter>
+        </receiver>
 
         <activity
             android:name=".DebugActivity"
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/BluetoothCommunicationService.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/BluetoothCommunicationService.java
index d8ddec5f45..12e62642dc 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/BluetoothCommunicationService.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/BluetoothCommunicationService.java
@@ -114,6 +114,23 @@ public class BluetoothCommunicationService extends Service {
         nm.notify(NOTIFICATION_ID, notification);
     }
 
+    private void evaluateGBCommandBundle(GBCommandBundle cmdBundle) {
+        switch (cmdBundle.commandClass) {
+            case MUSIC_CONTROL:
+                Log.i(TAG, "Got command for MUSIC_CONTROL");
+                Intent i = new Intent(GBMusicControlReceiver.ACTION_MUSICCONTROL);
+                i.putExtra("command", cmdBundle.command.ordinal());
+                sendBroadcast(i);
+                break;
+            case CALL_CONTROL:
+                Log.i(TAG, "Got command for CALL_CONTROL");
+                break;
+            default:
+                break;
+        }
+
+    }
+
     @Override
     public int onStartCommand(Intent intent, int flags, int startId) {
 
@@ -183,13 +200,13 @@ public class BluetoothCommunicationService extends Service {
             byte[] msg = PebbleProtocol.encodeEmail(sender, subject, body);
             mBtSocketIoThread.write(msg);
         } else if (intent.getAction().equals(ACTION_CALLSTATE)) {
-            byte phoneState = intent.getByteExtra("call_state", (byte) 0);
+            GBCommand command = GBCommand.values()[intent.getIntExtra("call_command", 0)]; // UGLY
             String phoneNumber = intent.getStringExtra("call_phonenumber");
             String callerName = null;
             if (phoneNumber != null) {
                 callerName = getContactDisplayNameByNumber(phoneNumber);
             }
-            byte[] msg = PebbleProtocol.encodeSetPhoneState(phoneNumber, callerName, phoneState);
+            byte[] msg = PebbleProtocol.encodeSetCallState(phoneNumber, callerName, command);
             mBtSocketIoThread.write(msg);
         } else if (intent.getAction().equals(ACTION_SETTIME)) {
             byte[] msg = PebbleProtocol.encodeSetTime(-1);
@@ -330,7 +347,12 @@ public class BluetoothCommunicationService extends Service {
                         Log.i(TAG, "Pebble asked for Phone/App Version - repLYING!");
                         write(PebbleProtocol.encodePhoneVersion(PebbleProtocol.PHONEVERSION_REMOTE_OS_ANDROID));
                     } else if (endpoint != PebbleProtocol.ENDPOINT_DATALOG) {
-                        Log.i(TAG, "unhandled message to endpoint " + endpoint + " (" + bytes + " bytes)");
+                        GBCommandBundle cmdBundle = PebbleProtocol.decodeResponse(buffer);
+                        if (cmdBundle == null) {
+                            Log.i(TAG, "unhandled message to endpoint " + endpoint + " (" + bytes + " bytes)");
+                        } else {
+                            evaluateGBCommandBundle(cmdBundle);
+                        }
                     }
                     try {
                         Thread.sleep(100);
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/DebugActivity.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/DebugActivity.java
index de1e17e390..bebf7d631c 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/DebugActivity.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/DebugActivity.java
@@ -73,7 +73,7 @@ public class DebugActivity extends ActionBarActivity {
                 Intent startIntent = new Intent(DebugActivity.this, BluetoothCommunicationService.class);
                 startIntent.setAction(BluetoothCommunicationService.ACTION_CALLSTATE);
                 startIntent.putExtra("call_phonenumber", editContent.getText().toString());
-                startIntent.putExtra("call_state", PebbleProtocol.PHONECONTROL_INCOMINGCALL);
+                startIntent.putExtra("call_command", GBCommand.CALL_INCOMING.ordinal());
                 startService(startIntent);
             }
         });
@@ -84,7 +84,7 @@ public class DebugActivity extends ActionBarActivity {
                 Intent startIntent = new Intent(DebugActivity.this, BluetoothCommunicationService.class);
                 startIntent.setAction(BluetoothCommunicationService.ACTION_CALLSTATE);
                 startIntent.putExtra("call_phonenumber", editContent.getText().toString());
-                startIntent.putExtra("call_state", PebbleProtocol.PHONECONTROL_OUTGOINGCALL);
+                startIntent.putExtra("call_command", GBCommand.CALL_OUTGOING.ordinal());
                 startService(startIntent);
             }
         });
@@ -95,7 +95,7 @@ public class DebugActivity extends ActionBarActivity {
             public void onClick(View v) {
                 Intent startIntent = new Intent(DebugActivity.this, BluetoothCommunicationService.class);
                 startIntent.setAction(BluetoothCommunicationService.ACTION_CALLSTATE);
-                startIntent.putExtra("call_state", PebbleProtocol.PHONECONTROL_START);
+                startIntent.putExtra("call_command", GBCommand.CALL_START.ordinal());
                 startService(startIntent);
             }
         });
@@ -105,7 +105,7 @@ public class DebugActivity extends ActionBarActivity {
             public void onClick(View v) {
                 Intent startIntent = new Intent(DebugActivity.this, BluetoothCommunicationService.class);
                 startIntent.setAction(BluetoothCommunicationService.ACTION_CALLSTATE);
-                startIntent.putExtra("call_state", PebbleProtocol.PHONECONTROL_END);
+                startIntent.putExtra("call_command", GBCommand.CALL_END.ordinal());
                 startService(startIntent);
             }
         });
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/GBCommand.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/GBCommand.java
new file mode 100644
index 0000000000..3010ebcfca
--- /dev/null
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/GBCommand.java
@@ -0,0 +1,20 @@
+package nodomain.freeyourgadget.gadgetbridge;
+
+public enum GBCommand {
+
+    UNDEFINEND,
+
+    CALL_ACCEPT,
+    CALL_END,
+    CALL_INCOMING,
+    CALL_OUTGOING,
+    CALL_PICKUP,
+    CALL_REJECT,
+    CALL_START,
+
+    MUSIC_PLAY,
+    MUSIC_PAUSE,
+    MUSIC_PLAYPAUSE,
+    MUSIC_NEXT,
+    MUSIC_PREVIOUS,
+}
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/GBCommandBundle.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/GBCommandBundle.java
new file mode 100644
index 0000000000..73d4597d00
--- /dev/null
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/GBCommandBundle.java
@@ -0,0 +1,7 @@
+package nodomain.freeyourgadget.gadgetbridge;
+
+
+public class GBCommandBundle {
+    public GBCommandClass commandClass;
+    public GBCommand command;
+}
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/GBCommandClass.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/GBCommandClass.java
new file mode 100644
index 0000000000..60692a9040
--- /dev/null
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/GBCommandClass.java
@@ -0,0 +1,6 @@
+package nodomain.freeyourgadget.gadgetbridge;
+
+public enum GBCommandClass {
+    MUSIC_CONTROL,
+    CALL_CONTROL
+}
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/GBMusicControlReceiver.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/GBMusicControlReceiver.java
new file mode 100644
index 0000000000..298f621e66
--- /dev/null
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/GBMusicControlReceiver.java
@@ -0,0 +1,50 @@
+package nodomain.freeyourgadget.gadgetbridge;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.os.SystemClock;
+import android.view.KeyEvent;
+
+public class GBMusicControlReceiver extends BroadcastReceiver {
+    private final String TAG = this.getClass().getSimpleName();
+
+    public static final String ACTION_MUSICCONTROL = "nodomain.freeyourgadget.gadgetbridge.musiccontrol";
+
+    @Override
+    public void onReceive(Context context, Intent intent) {
+        GBCommand command = GBCommand.values()[intent.getIntExtra("command", 0)];
+        int keyCode;
+        switch (command) {
+            case MUSIC_NEXT:
+                keyCode = KeyEvent.KEYCODE_MEDIA_NEXT;
+                break;
+            case MUSIC_PREVIOUS:
+                keyCode = KeyEvent.KEYCODE_MEDIA_PREVIOUS;
+                break;
+            case MUSIC_PLAY:
+                keyCode = KeyEvent.KEYCODE_MEDIA_PLAY;
+                break;
+            case MUSIC_PAUSE:
+                keyCode = KeyEvent.KEYCODE_MEDIA_PAUSE;
+                break;
+            case MUSIC_PLAYPAUSE:
+                keyCode = KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE;
+                break;
+            default:
+                return;
+        }
+
+        long eventtime = SystemClock.uptimeMillis();
+
+        Intent downIntent = new Intent(Intent.ACTION_MEDIA_BUTTON, null);
+        KeyEvent downEvent = new KeyEvent(eventtime, eventtime, KeyEvent.ACTION_DOWN, keyCode, 0);
+        downIntent.putExtra(Intent.EXTRA_KEY_EVENT, downEvent);
+        context.sendOrderedBroadcast(downIntent, null);
+
+        Intent upIntent = new Intent(Intent.ACTION_MEDIA_BUTTON, null);
+        KeyEvent upEvent = new KeyEvent(eventtime, eventtime, KeyEvent.ACTION_UP, keyCode, 0);
+        upIntent.putExtra(Intent.EXTRA_KEY_EVENT, upEvent);
+        context.sendOrderedBroadcast(upIntent, null);
+    }
+}
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/PebbleProtocol.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/PebbleProtocol.java
index 392c4a6a1f..0acca92354 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/PebbleProtocol.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/PebbleProtocol.java
@@ -46,6 +46,14 @@ public class PebbleProtocol {
     static final byte PHONECONTROL_END = 9;
 
     static final byte MUSICCONTROL_SETMUSICINFO = 16;
+    static final byte MUSICCONTROL_PLAYPAUSE = 1;
+    static final byte MUSICCONTROL_PAUSE = 2;
+    static final byte MUSICCONTROL_PLAY = 3;
+    static final byte MUSICCONTROL_NEXT = 4;
+    static final byte MUSICCONTROL_PREVIOUS = 5;
+    static final byte MUSICCONTROL_VOLUMEUP = 6;
+    static final byte MUSICCONTROL_VOLUMEDOWN = 7;
+    static final byte MUSICCONTROL_GETNOWPLAYING = 7;
 
     static final short LENGTH_PREFIX = 4;
     static final short LENGTH_SETTIME = 9;
@@ -153,9 +161,26 @@ public class PebbleProtocol {
         return buf.array();
     }
 
-    public static byte[] encodeSetPhoneState(String number, String name, byte state) {
+    public static byte[] encodeSetCallState(String number, String name, GBCommand command) {
         String[] parts = {number, name};
-        return encodeMessage(ENDPOINT_PHONECONTROL, state, 0, parts);
+        byte pebbleCmd;
+        switch (command) {
+            case CALL_START:
+                pebbleCmd = PHONECONTROL_START;
+                break;
+            case CALL_END:
+                pebbleCmd = PHONECONTROL_END;
+                break;
+            case CALL_INCOMING:
+                pebbleCmd = PHONECONTROL_INCOMINGCALL;
+                break;
+            case CALL_OUTGOING:
+                pebbleCmd = PHONECONTROL_OUTGOINGCALL;
+                break;
+            default:
+                return null;
+        }
+        return encodeMessage(ENDPOINT_PHONECONTROL, pebbleCmd, 0, parts);
     }
 
     public static byte[] encodeSetMusicInfo(String artist, String album, String track) {
@@ -186,23 +211,41 @@ public class PebbleProtocol {
         return buf.array();
     }
 
-    // FIXME: that should return data into some unified struct/Class
-    public static String decodeResponse(byte[] responseData) {
+    public static GBCommandBundle decodeResponse(byte[] responseData) {
         ByteBuffer buf = ByteBuffer.wrap(responseData);
         buf.order(ByteOrder.BIG_ENDIAN);
         short length = buf.getShort();
         short endpoint = buf.getShort();
-        byte extra = 0;
-
+        byte pebbleCmd = buf.get();
+        GBCommandBundle cmd = new GBCommandBundle();
         switch (endpoint) {
-            case ENDPOINT_PHONECONTROL:
-                extra = buf.get();
+            case ENDPOINT_MUSICCONTROL:
+                cmd.commandClass = GBCommandClass.MUSIC_CONTROL;
+                switch (pebbleCmd) {
+                    case MUSICCONTROL_NEXT:
+                        cmd.command = GBCommand.MUSIC_NEXT;
+                        break;
+                    case MUSICCONTROL_PREVIOUS:
+                        cmd.command = GBCommand.MUSIC_PREVIOUS;
+                        break;
+                    case MUSICCONTROL_PLAY:
+                        cmd.command = GBCommand.MUSIC_PLAY;
+                        break;
+                    case MUSICCONTROL_PAUSE:
+                        cmd.command = GBCommand.MUSIC_PAUSE;
+                        break;
+                    case MUSICCONTROL_PLAYPAUSE:
+                        cmd.command = GBCommand.MUSIC_PLAYPAUSE;
+                        break;
+                    default:
+                        cmd.command = GBCommand.UNDEFINEND;
+                        break;
+                }
                 break;
             default:
-                break;
+                return null;
         }
-        String ret = "length: " + Short.toString(length) + " Endpoint:" + Short.toString(endpoint) + "/" + Byte.toString(extra);
 
-        return ret;
+        return cmd;
     }
 }
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/PhoneCallReceiver.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/PhoneCallReceiver.java
index 23f2f52cd8..35f509249d 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/PhoneCallReceiver.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/PhoneCallReceiver.java
@@ -36,33 +36,33 @@ public class PhoneCallReceiver extends BroadcastReceiver {
             return;
         }
 
-        byte pebblePhoneCommand = -1; // TODO: dont assume Pebble here
+        GBCommand callCommand = null;
         switch (state) {
             case TelephonyManager.CALL_STATE_RINGING:
                 mSavedNumber = number;
-                pebblePhoneCommand = PebbleProtocol.PHONECONTROL_INCOMINGCALL;
+                callCommand = GBCommand.CALL_INCOMING;
                 break;
             case TelephonyManager.CALL_STATE_OFFHOOK:
                 if (mLastState == TelephonyManager.CALL_STATE_RINGING) {
-                    pebblePhoneCommand = PebbleProtocol.PHONECONTROL_START;
+                    callCommand = GBCommand.CALL_START;
                 } else {
-                    pebblePhoneCommand = PebbleProtocol.PHONECONTROL_OUTGOINGCALL;
+                    callCommand = GBCommand.CALL_OUTGOING;
                 }
                 break;
             case TelephonyManager.CALL_STATE_IDLE:
                 if (mLastState == TelephonyManager.CALL_STATE_RINGING) {
-                    //pebblePhoneCommand = PebbleProtocol.PHONECONTROL_MISSEDCALL;
-                    pebblePhoneCommand = PebbleProtocol.PHONECONTROL_END; // MISSED CALL DOES NOT WORK
+                    //missed call would be correct here
+                    callCommand = GBCommand.CALL_END;
                 } else {
-                    pebblePhoneCommand = PebbleProtocol.PHONECONTROL_END;
+                    callCommand = GBCommand.CALL_END;
                 }
                 break;
         }
-        if (pebblePhoneCommand != -1) {
+        if (callCommand != null) {
             Intent startIntent = new Intent(context, BluetoothCommunicationService.class);
             startIntent.setAction(BluetoothCommunicationService.ACTION_CALLSTATE);
             startIntent.putExtra("call_phonenumber", mSavedNumber);
-            startIntent.putExtra("call_state", pebblePhoneCommand);
+            startIntent.putExtra("call_command", callCommand.ordinal());
             context.startService(startIntent);
         }
         mLastState = state;
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/StopServiceReceiver.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/StopServiceReceiver.java
index 0e974ea1e6..6416bb25f3 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/StopServiceReceiver.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/StopServiceReceiver.java
@@ -10,8 +10,7 @@ public class StopServiceReceiver extends BroadcastReceiver {
         Intent stopIntent = new Intent(context, BluetoothCommunicationService.class);
         context.stopService(stopIntent);
 
-        Intent quitIntent = new Intent();
-        quitIntent.setAction(ControlCenter.ACTION_QUIT);
+        Intent quitIntent = new Intent(ControlCenter.ACTION_QUIT);
         context.sendBroadcast(quitIntent);
     }
 }