From 0dfe5f3ab66df02b30c4fe0bce1337c55e7c7e8d Mon Sep 17 00:00:00 2001
From: Evan Pratten <evan@ewpratten.com>
Date: Tue, 28 Nov 2023 12:47:12 -0500
Subject: [PATCH] Add a script to check blink frames on a remote server

---
 scripts/blink-check | 101 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 101 insertions(+)
 create mode 100755 scripts/blink-check

diff --git a/scripts/blink-check b/scripts/blink-check
new file mode 100755
index 0000000..af9eef4
--- /dev/null
+++ b/scripts/blink-check
@@ -0,0 +1,101 @@
+#! /usr/bin/env python3
+import argparse
+import sys
+import logging
+import subprocess
+from datetime import datetime
+
+logger = logging.getLogger(__name__)
+
+def main() -> int:
+    # Handle program arguments
+    ap = argparse.ArgumentParser(prog='blink-check', description='Check on a running blink-fetch cron task')
+    ap.add_argument("hostname", help="[user@]hostname[:port] for SSH")
+    ap.add_argument("--image-dir", help="Remote directory containing fetched images", default="/tmp/blink")
+    ap.add_argument("--camera-id", help="Camera ID", default="155295")
+    ap.add_argument("--show-latest", "--show", "-s", help="Download and display the latest image (if possible)", action="store_true")
+    ap.add_argument('-v', '--verbose', help='Enable verbose logging', action='store_true')
+    args = ap.parse_args()
+
+    # Configure logging
+    logging.basicConfig(
+        level=logging.DEBUG if args.verbose else logging.INFO,
+        format='%(levelname)s:	%(message)s',
+    )
+    
+    # List files in image directory
+    logger.info(f"Listing files in: {args.hostname}:{args.image_dir}")
+    result = subprocess.run(
+        [
+            "ssh",
+            args.hostname,
+            "ls",
+            "-1",
+            args.image_dir,
+        ],
+        capture_output=True,
+        text=True,
+    )
+    
+    # Check for errors
+    if result.returncode != 0:
+        logger.error(f"Failed to list files in: {args.hostname}:{args.image_dir}")
+        logger.error(result.stderr)
+        return 1
+    
+    # Find all frames
+    frames = result.stdout.splitlines()
+    frames = [frame for frame in frames if frame.startswith(f"camera_{args.camera_id}.")]
+    frames = sorted(frames)
+    logger.info(f"Found {len(frames)} frames")
+    if len(frames) > 0:
+        oldest_frame_time = datetime.strptime(frames[0].split('.')[1], "%Y%m%d_%H%M%S")
+        newest_frame_time = datetime.strptime(frames[-1].split('.')[1], "%Y%m%d_%H%M%S")
+        logger.info(f"Oldest frame is from: {oldest_frame_time}")
+        logger.info(f"Newest frame is from: {newest_frame_time}")
+        
+    # Download and display the latest image
+    if args.show_latest:
+        if len(frames) > 0:
+            latest_frame = frames[-1]
+            logger.info(f"Downloading latest frame: {latest_frame}")
+            result = subprocess.run(
+                [
+                    "scp",
+                    f"{args.hostname}:{args.image_dir}/{latest_frame}",
+                    "/tmp/blink-latest.jpg",
+                ],
+                capture_output=True,
+                text=True,
+            )
+            
+            # Check for errors
+            if result.returncode != 0:
+                logger.error(f"Failed to download latest frame: {latest_frame}")
+                logger.error(result.stderr)
+                return 1
+            
+            # Display image
+            logger.info(f"Displaying latest frame: {latest_frame}")
+            result = subprocess.run(
+                [
+                    "xdg-open",
+                    "/tmp/blink-latest.jpg",
+                ],
+                capture_output=True,
+                text=True,
+            )
+            
+            # Check for errors
+            if result.returncode != 0:
+                logger.error(f"Failed to display latest frame: {latest_frame}")
+                logger.error(result.stderr)
+                return 1
+        else:
+            logger.info(f"No frames to display")
+    
+
+    return 0
+
+if __name__ == "__main__":
+    sys.exit(main())
\ No newline at end of file