ENCODING!! and lots of organization

2026-08-12 10:53:56 +00:00 · 2023-09-13 14:50:27 -05:00
parent 2ab90d0146
commit fa0160fc54
37 changed files with 651 additions and 222 deletions
@@ -0,0 +1,95 @@
+const dataChunk = require('./encoders/data/data-chunk');
+const dataTrackerListChunk = require('./encoders/data/data-tracker-list-chunk');
+const infoChunk = require('./encoders/info/info-chunk');
+const infoSystemNameChunk = require('./encoders/info/info-system-name-chunk');
+const infoTrackerListChunk = require('./encoders/info/info-tracker-list-chunk');
+const packetHeaderChunk = require('./encoders/packet-header-chunk');
+
+const MAX_TRACKER_LIST_SIZE = 1000;
+
+class Encoder {
+  constructor(systemName, versionHigh, versionLow) {
+    this.systemName = systemName;
+    this.versionHigh = versionHigh;
+    this.versionLow = versionLow;
+    this.dataFrameId = 1;
+    this.infoFrameId = 1;
+  }
+
+  getInfoPackets(timestamp, trackers) {
+    const trackerChunks = trackers.map((tracker) => tracker.getInfoChunk());
+
+    const infoPackets = [];
+
+    const trackerChunksLists = [];
+    let currentTrackerList = [];
+
+    let currentTrackerListSize = 0;
+
+    trackerChunks.forEach((trackerChunk) => {
+      if (currentTrackerListSize + trackerChunk.length > MAX_TRACKER_LIST_SIZE) {
+        trackerChunksLists.push(currentTrackerList);
+        currentTrackerList = [];
+        currentTrackerListSize = 0;
+      }
+      currentTrackerList.push(trackerChunk);
+      currentTrackerListSize += trackerChunk.length;
+    });
+    trackerChunksLists.push(currentTrackerList);
+    const header = packetHeaderChunk(
+      timestamp,
+      this.versionHigh,
+      this.versionLow,
+      this.infoFrameId,
+      trackerChunksLists.length
+    );
+    trackerChunksLists.forEach((trackerChunkList) => {
+      infoPackets.push(infoChunk(header, infoSystemNameChunk(this.systemName), infoTrackerListChunk(trackerChunkList)));
+    });
+    this.dataFrameId += 1;
+    if (this.dataFrameId > 255) {
+      this.dataFrameId = 0;
+    }
+    return infoPackets;
+  }
+
+  getDataPackets(timestamp, trackers) {
+    const allTrackerChunks = trackers.map((tracker) => tracker.getDataChunk());
+
+    const dataPackets = [];
+
+    const trackerChunksLists = [];
+    let currentTrackerList = [];
+
+    let currentTrackerListSize = 0;
+
+    allTrackerChunks.forEach((trackerChunk) => {
+      if (currentTrackerListSize + trackerChunk.length > MAX_TRACKER_LIST_SIZE) {
+        trackerChunksLists.push(currentTrackerList);
+        currentTrackerList = [];
+        currentTrackerListSize = 0;
+      }
+      currentTrackerList.push(trackerChunk);
+      currentTrackerListSize += trackerChunk.length;
+    });
+    trackerChunksLists.push(currentTrackerList);
+
+    const header = packetHeaderChunk(
+      timestamp,
+      this.versionHigh,
+      this.versionLow,
+      this.dataFrameId,
+      trackerChunksLists.length
+    );
+    trackerChunksLists.forEach((trackerChunks) => {
+      dataPackets.push(dataChunk(header, dataTrackerListChunk(trackerChunks)));
+    });
+    this.dataFrameId += 1;
+    if (this.dataFrameId > 255) {
+      this.dataFrameId = 0;
+    }
+    return dataPackets;
+  }
+}
+
+module.exports = Encoder;