#!/bin/bash

# Path to your notice file
NOTICE_FILE="./NOTICE"

# Check if notice file exists
if [ ! -f "$NOTICE_FILE" ]; then
    echo "Error: $NOTICE_FILE not found!"
    exit 1
fi

# Find all .cpp, .hpp, .h, and .cc files
# Excluding the .git directory
find . -type d -name ".git" -prune -o -type d -name "build" -prune -o -type f \( -name "*.cpp" -o -name "*.hpp" -o -name "*.h" -o -name "*.cc" \) -print | while read -r file; do
    
    # Check if the file already contains a specific keyword from your notice 
    # to avoid double-prepending (e.g., "Copyright")
    if grep -q "Copyright" "$file"; then
        echo "Skipping $file (License already exists)"
    else
        echo "Adding notice to $file"
        # Create a temp file: notice + newline + original content
        { cat "$NOTICE_FILE"; echo ""; cat "$file"; } > "$file.tmp" && mv "$file.tmp" "$file"
    fi
done

echo "Done!"