Fixed Screen Flash Script

Content is user-generated and unverified.
#!/bin/bash

FILE_TO_WATCH="/tmp/trigger_file.txt"
FLASH_IMAGE="$HOME/alfred-e-neuman.jpeg"

flash_screen() {
  # Convert the image path to absolute path
  local abs_flash_image
  abs_flash_image=$(realpath "$FLASH_IMAGE" 2>/dev/null)
  
  # Create a temporary Swift script for fullscreen flash
  local temp_script="/tmp/flash_screen.swift"
  
  if [[ -f "$abs_flash_image" ]]; then
    # Flash with image
    cat > "$temp_script" << 'SWIFT_EOF'
import Cocoa

let app = NSApplication.shared
let window = NSWindow(
    contentRect: NSScreen.main!.frame,
    styleMask: [.borderless],
    backing: .buffered,
    defer: false
)

window.backgroundColor = NSColor.white
window.level = NSWindow.Level(rawValue: Int(CGWindowLevelForKey(.maximumWindow)))
window.isOpaque = true
window.ignoresMouseEvents = true

if let imagePath = CommandLine.arguments.count > 1 ? CommandLine.arguments[1] : nil,
   let image = NSImage(contentsOfFile: imagePath) {
    let imageView = NSImageView(frame: window.contentView!.bounds)
    imageView.image = image
    imageView.imageScaling = .scaleProportionallyUpOrDown
    window.contentView?.addSubview(imageView)
}

window.makeKeyAndOrderFront(nil)
DispatchQueue.main.asyncAfter(deadline: .now() + 0.2) {
    window.close()
    app.terminate(nil)
}

app.run()
SWIFT_EOF
    
    swift "$temp_script" "$abs_flash_image" > /dev/null 2>&1 &
  else
    # Flash with white color
    cat > "$temp_script" << 'SWIFT_EOF'
import Cocoa

let app = NSApplication.shared
let window = NSWindow(
    contentRect: NSScreen.main!.frame,
    styleMask: [.borderless],
    backing: .buffered,
    defer: false
)

window.backgroundColor = NSColor.white
window.level = NSWindow.Level(rawValue: Int(CGWindowLevelForKey(.maximumWindow)))
window.isOpaque = true
window.ignoresMouseEvents = true
window.makeKeyAndOrderFront(nil)

DispatchQueue.main.asyncAfter(deadline: .now() + 0.2) {
    window.close()
    app.terminate(nil)
}

app.run()
SWIFT_EOF
    
    swift "$temp_script" > /dev/null 2>&1 &
  fi
  
  # Clean up after a moment
  sleep 0.5
  rm -f "$temp_script"
}

# Create the directory for the file if it doesn't exist
mkdir -p "$(dirname "$FILE_TO_WATCH")"

# Create the file if it doesn't exist (fswatch needs it to exist)
touch "$FILE_TO_WATCH"

echo "Watching for changes to: $FILE_TO_WATCH"
echo "Flash image: $FLASH_IMAGE"
echo "Press Ctrl+C to stop..."

# Use fswatch with event flags to get detailed event information
fswatch -l 0.01 --event-flags "$(dirname "$FILE_TO_WATCH")" | while read event_line
do
  # Only process events for our specific file
  if [[ "$event_line" == *"$(basename "$FILE_TO_WATCH")"* ]]; then
    echo "$(date '+%Y-%m-%d %H:%M:%S') - Raw event flags: $event_line"
    
    # Check for creation events (Created, ItemCreated)
    if [[ "$event_line" == *"Created"* ]]; then
      echo "FILE CREATED - Flashing screen..."
      flash_screen
    # Check for deletion events (Removed, ItemRemoved) 
    elif [[ "$event_line" == *"Removed"* ]]; then
      echo "FILE DELETED - Flashing screen..."
      flash_screen
    # Check for modification events (Updated, Modified, Changed)
    elif [[ "$event_line" == *"Updated"* || "$event_line" == *"Modified"* || "$event_line" == *"Changed"* ]]; then
      echo "FILE MODIFIED - Not flashing (uncomment to enable)"
      # flash_screen
    else
      echo "UNKNOWN EVENT TYPE - Event flags: '$event_line'"
      echo "Debug: Looking for file '$(basename "$FILE_TO_WATCH")' in event"
      # Flash anyway for testing
      flash_screen
    fi
  else
    # Debug: show all events to understand what we're getting
    echo "$(date '+%Y-%m-%d %H:%M:%S') - Other file event: $event_line"
  fi
done
Content is user-generated and unverified.