Initial project commit

2020-07-18 21:44:27 -04:00
parent 8a1141b373
commit fea891a268
127 changed files with 20838 additions and 0 deletions
--- a/lib/nightscout/com/eveningoutpost/dexdrip/G5Model/SessionStartRxMessage.java
+++ b/lib/nightscout/com/eveningoutpost/dexdrip/G5Model/SessionStartRxMessage.java
@@ -0,0 +1,90 @@
+package com.eveningoutpost.dexdrip.G5Model;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+
+// created by jamorham
+
+public class SessionStartRxMessage extends BaseMessage {
+    public static final byte opcode = 0x27;
+    final byte length = 17;
+
+    private byte status = (byte) 0xFF;
+    private byte info = (byte) 0xFF;
+    final String transmitterId;
+    int sessionStartTime = 0;
+    int requestedStartTime = 0;
+    int transitterTime = 0;
+
+    boolean valid = false;
+
+    public SessionStartRxMessage(byte[] packet, String transmitterId) {
+        this.transmitterId = transmitterId;
+        if (packet.length == length) {
+            data = ByteBuffer.wrap(packet).order(ByteOrder.LITTLE_ENDIAN);
+            if ((data.get() == opcode) && checkCRC(packet)) {
+                valid = true;
+                status = data.get();
+                info = data.get();
+                requestedStartTime = data.getInt();
+                sessionStartTime = data.getInt();
+                transitterTime = data.getInt();
+            }
+        }
+    }
+
+    boolean isValid() {
+        return valid;
+    }
+
+    boolean isOkay() {
+        return isValid() && status == 0x00 && (info == 0x01 || info == 0x05) && sessionStartTime != INVALID_TIME;
+    }
+
+    // beyond hope?
+    boolean isFubar() {
+        return info == 0x04;
+    }
+
+    long getSessionStart() {
+        if (isOkay() && sessionStartTime > 0) {
+            return DexTimeKeeper.fromDexTime(transmitterId, sessionStartTime);
+        } else {
+            return 0;
+        }
+    }
+
+    long getRequestedStart() {
+        if (isOkay() && requestedStartTime > 0) {
+            return DexTimeKeeper.fromDexTime(transmitterId, requestedStartTime);
+        } else {
+            return 0;
+        }
+    }
+
+    long getTransmitterTime() {
+        if (isOkay() && transitterTime > 0) {
+            return DexTimeKeeper.fromDexTime(transmitterId, transitterTime);
+        } else {
+            return 0;
+        }
+    }
+
+    String message() {
+        switch (info) {
+            case 0x01:
+                return "OK";
+            case 0x02:
+                return "Already started";
+            case 0x03:
+                return "Invalid";
+            case 0x04:
+                return "Clock not synchronized or other error"; // probably
+            case 0x05:
+                return "OK G6"; // probably
+            default:
+                return "Unknown code: " + info;
+        }
+    }
+}
+