BluetoothSwpSBF77 experimental support for SBF77 based on BF600 and BF105;

android_app/app/src/main/java/com/health/openscale/core/bluetooth/BluetoothFactory.java

@@ -128,6 +128,9 @@ public class BluetoothFactory {
         if (deviceName.equals("BF600") || deviceName.equals("BF850") || deviceName.equals("BF950")) {
             return new BluetoothBeurerBF600(context, deviceName);
         }
+        if (deviceName.equals("SBF77")) {
+            return new BluetoothSwpSBF77(context);
+        }
         return null;
     }
 }

android_app/app/src/main/java/com/health/openscale/core/bluetooth/BluetoothSwpSBF77.java

@@ -0,0 +1,171 @@
+/* Copyright (C) 2019  olie.xdev <olie.xdev@googlemail.com>
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+ /*
+ * Based on source-code by weliem/blessed-android
+ */
+package com.health.openscale.core.bluetooth;
+
+import android.content.Context;
+import android.util.Pair;
+
+import com.health.openscale.core.datatypes.ScaleMeasurement;
+import com.health.openscale.core.datatypes.ScaleUser;
+import com.health.openscale.core.utils.Converters;
+import com.welie.blessed.BluetoothBytesParser;
+
+import java.text.DateFormat;
+import java.util.Arrays;
+import java.util.GregorianCalendar;
+import java.util.UUID;
+import java.util.Vector;
+
+import timber.log.Timber;
+
+import static com.welie.blessed.BluetoothBytesParser.FORMAT_UINT16;
+import static com.welie.blessed.BluetoothBytesParser.FORMAT_UINT8;
+
+class BluetoothGattUuidSBF77 extends BluetoothGattUuid {
+    public static final UUID SERVICE_CUSTOM_SBF77 = fromShortCode(0xffff);
+    public static final UUID CHARACTERISTIC_SBF77_USER_LIST = fromShortCode(0x0001);
+}
+
+public class BluetoothSwpSBF77 extends BluetoothStandardWeightProfile {
+
+    ScaleMeasurement scaleMeasurement;
+    private Vector<ScaleUser> scaleUserList;
+    static final int SBF77_MAX_USERS = 8;
+
+    public BluetoothSwpSBF77(Context context) {
+        super(context);
+        scaleMeasurement = new ScaleMeasurement();
+        scaleUserList = new Vector<ScaleUser>();
+    }
+
+    @Override
+    public String driverName() {
+        return "SBF77";
+    }
+
+    @Override
+    protected void writeBirthday() {
+        BluetoothBytesParser parser = new BluetoothBytesParser();
+        parser.setDateTime(dateToCalender(this.selectedUser.getBirthday()));
+        writeBytes(BluetoothGattUuid.SERVICE_USER_DATA, BluetoothGattUuid.CHARACTERISTIC_USER_DATE_OF_BIRTH,
+                Arrays.copyOfRange(parser.getValue(), 0, 3));
+    }
+
+    @Override
+    protected void setNotifyVendorSpecificUserList() {
+        setNotificationOn(BluetoothGattUuidSBF77.SERVICE_CUSTOM_SBF77,
+                BluetoothGattUuidSBF77.CHARACTERISTIC_SBF77_USER_LIST);
+    }
+
+    @Override
+    protected synchronized void requestVendorSpecificUserList() {
+        scaleUserList.clear();
+        BluetoothBytesParser parser = new BluetoothBytesParser();
+        parser.setIntValue(0x00, FORMAT_UINT8);
+        writeBytes(BluetoothGattUuidSBF77.SERVICE_CUSTOM_SBF77, BluetoothGattUuidSBF77.CHARACTERISTIC_SBF77_USER_LIST,
+                parser.getValue());
+        stopMachineState();
+    }
+
+    @Override
+    public void onBluetoothNotify(UUID characteristic, byte[] value) {
+        if (characteristic.equals(BluetoothGattUuidSBF77.CHARACTERISTIC_SBF77_USER_LIST)) {
+            Timber.d(String.format("Got user data: <%s>", byteInHex(value)));
+            BluetoothBytesParser parser = new BluetoothBytesParser(value);
+            int userListStatus = parser.getIntValue(FORMAT_UINT8);
+            if (userListStatus == 2) {
+                Timber.d("scale have no users!");
+                storeUserScaleConsentCode(selectedUser.getId(), -1);
+                storeUserScaleIndex(selectedUser.getId(), -1);
+                jumpNextToStepNr(SM_STEPS.REGISTER_NEW_SCALE_USER.ordinal());
+                resumeMachineState();
+                return;
+            }
+            else if (userListStatus == 1) {
+                for (int i = 0; i < scaleUserList.size(); i++) {
+                    if (i == 0) {
+                        Timber.d("scale user list:");
+                    }
+                    Timber.d("\n" + (i + 1) + ". " + scaleUserList.get(i));
+                }
+                if ((scaleUserList.size() == 0)) {
+                    storeUserScaleConsentCode(selectedUser.getId(), -1);
+                    storeUserScaleIndex(selectedUser.getId(), -1);
+                    jumpNextToStepNr(SM_STEPS.REGISTER_NEW_SCALE_USER.ordinal());
+                    resumeMachineState();
+                    return;
+                }
+                if (getUserScaleIndex(selectedUser.getId()) == -1 || getUserScaleConsent(selectedUser.getId()) == -1)  {
+                    chooseExistingScaleUser(scaleUserList);
+                    return;
+                }
+                resumeMachineState();
+                return;
+            }
+            int index = parser.getIntValue(FORMAT_UINT8);
+            String initials = parser.getStringValue();
+            int end = 3 > initials.length() ? initials.length() : 3;
+            initials = initials.substring(0, end);
+            parser.setOffset(5);
+            int year = parser.getIntValue(FORMAT_UINT16);
+            int month = parser.getIntValue(FORMAT_UINT8);
+            int day = parser.getIntValue(FORMAT_UINT8);
+            int height = parser.getIntValue(FORMAT_UINT8);
+            int gender = parser.getIntValue(FORMAT_UINT8);
+            int activityLevel = parser.getIntValue(FORMAT_UINT8);
+            GregorianCalendar calendar = new GregorianCalendar(year, month - 1, day);
+            ScaleUser scaleUser = new ScaleUser(initials, calendar.getTime(), height, gender, activityLevel - 1);
+            scaleUser.setId(index);
+            scaleUserList.add(scaleUser);
+            if (scaleUserList.size() == SBF77_MAX_USERS) {
+                chooseExistingScaleUser(scaleUserList);
+            }
+        }
+        else {
+            super.onBluetoothNotify(characteristic, value);
+        }
+    }
+
+    protected void chooseExistingScaleUser(Vector<ScaleUser> userList) {
+        final DateFormat dateFormat = DateFormat.getDateInstance();
+        int choicesCount = userList.size();
+        if (userList.size() < SBF77_MAX_USERS) {
+            choicesCount = userList.size() + 1;
+        }
+        CharSequence[] choiceStrings = new String[choicesCount];
+        int indexArray[] = new int[choicesCount];
+        int selectedItem = -1;
+        for (int i = 0; i < userList.size(); ++i) {
+            ScaleUser u = userList.get(i);
+            choiceStrings[i] = "P-0" + u.getId()
+                    + " " + (u.getGender().isMale() ? "male" : "female")
+                    + " " + "height:" + u.getBodyHeight()
+                    + " birthday:" + dateFormat.format(u.getBirthday())
+                    + " " + "AL:" + (u.getActivityLevel().toInt() + 1);
+            indexArray[i] = u.getId();
+        }
+        if (userList.size() < SBF77_MAX_USERS) {
+            choiceStrings[userList.size()] = "Create new user on scale.";
+            indexArray[userList.size()] = -1;
+        }
+        Pair<CharSequence[], int[]> choices = new Pair(choiceStrings, indexArray);
+        chooseScaleUserUi(choices);
+    }
+}