add available memory check

Author: samfreund

photon-core/src/main/java/org/photonvision/vision/pipeline/FrameRecorder.java

@@ -23,6 +23,7 @@
 import java.util.concurrent.atomic.AtomicBoolean;
 import org.opencv.core.Mat;
 import org.opencv.imgcodecs.Imgcodecs;
+import org.photonvision.common.hardware.HardwareManager;
 import org.photonvision.common.logging.LogGroup;
 import org.photonvision.common.logging.Logger;
 import org.photonvision.vision.opencv.CVMat;
@@ -67,6 +68,17 @@ static RecordFrame poison() {
     public FrameRecorder(Path outputPath, RecordingStrategy strat) {
         this.logger = new Logger(FrameRecorder.class, LogGroup.VisionModule);
 
+        double availableSpace = HardwareManager.getInstance().metricsManager.getDiskSpaceAvailable();
+
+        // Check if we're under 4 GB of available space, if so exit
+        if (availableSpace < 4 * 1024 * 1024) {
+            logger.error(
+                    "Low disk space available ("
+                            + availableSpace / 1024
+                            + " MB). FrameRecorder will not start.");
+            throw new IllegalStateException("Insufficient disk space for FrameRecorder");
+        }
+
         logger.info("Initializing FrameRecorder with output path: " + outputPath.toString());
         this.outputPath = outputPath;