import pysubs2
import os

def validate_and_repair_srt(srt_path):
    """
    Validates an SRT file and attempts to repair it using pysubs2.
    
    Args:
        srt_path (str): Path to the SRT file.
        
    Returns:
        bool: True if valid/repaired, False if critical error.
    """
    if not os.path.exists(srt_path):
        return False

    print(f"Validating SRT: {srt_path}...")
    try:
        # Load the subtitle file. pysubs2 parser is robust and handles many errors automatically.
        subs = pysubs2.load(srt_path)
        
        # Save it back ensures consistent formatting and fixes minor syntax issues
        subs.save(srt_path)
        print("SRT validation passed (file re-saved with correct formatting).")
        return True
    except Exception as e:
        print(f"Warning: SRT validation failed: {e}")
        return False