#!/usr/bin/env python3
"""Count files in a directory, excluding subdirectories."""
import sys
import os

def count_files(path):
    if not os.path.exists(path):
        print(f"ERROR: Path does not exist: {path}")
        return -1
    if not os.path.isdir(path):
        print(f"ERROR: Path is not a directory: {path}")
        return -1
    
    count = 0
    for entry in os.listdir(path):
        full_path = os.path.join(path, entry)
        if os.path.isfile(full_path):
            count += 1
    
    print(f"FILE_COUNT:{count}")
    return count

if __name__ == "__main__":
    target = sys.argv[1] if len(sys.argv) > 1 else "/root/.hermes/wizard-outputs/spark"
    result = count_files(target)
    sys.exit(0 if result >= 0 else 1)