import datetime
import os

def print_log(message):
    print(f"[LOG]: {message}")

def test_stock_update_exclusion_date(file_path):
    valid_days = {
        "monday", "tuesday", "wednesday", "thursday", "friday", "saturday", "sunday"
    }
    
    try:
        if not os.path.exists(file_path):
            print_log(f"Error: File '{file_path}' not found.")
            return False

        with open(file_path, 'r') as f:
            token_text = f.read()
        
        lines = token_text.splitlines()
        active_rules = []
        
        print_log("--- Starting Validation ---")
        
        for line in lines:
            clean_line = line.strip()
            
            if not clean_line or clean_line.startswith("#"):
                continue

            is_valid_rule = False

            # Check Date Format
            if clean_line[0].isdigit():
                try:
                    datetime.datetime.strptime(clean_line, "%d/%m/%Y")
                    is_valid_rule = True
                except ValueError:
                    print_log(f"WARNING: Rule '{clean_line}' is malformed (expected DD/MM/YYYY).")
            
            # Check Day Name
            else:
                if clean_line.lower() in valid_days:
                    is_valid_rule = True
                else:
                    print_log(f"WARNING: Rule '{clean_line}' is not a valid day name.")

            if is_valid_rule:
                active_rules.append(clean_line)

        print_log(f"Rules loaded: {active_rules}")

        # Current Time Simulation
        now = datetime.datetime.now()
        current_day_name = now.strftime("%A")
        current_date_str = now.strftime("%d/%m/%Y")
        
        print_log(f"Simulating check for: {current_day_name}, {current_date_str}")
        
        for rule in active_rules:
            if rule.lower() == current_day_name.lower():
                print_log(f"MATCH FOUND: Day '{rule}' matches. Exclude update.")
                return True
            
            if rule == current_date_str:
                print_log(f"MATCH FOUND: Date '{rule}' matches. Exclude update.")
                return True

        print_log("NO MATCH: Update should proceed.")
        return False

    except Exception as e:
        print_log(f"Exception: {e}")
        return False

if __name__ == "__main__":
    dummy_filename = "exclusion_rules_test.txt"
    
    # Test content with typos
    test_content = """# Test Rules v2
Monday
Munday      # TYPO: Should trigger warning
Sunday
25/12/2025
2025/12/25  # WRONG FORMAT: Should trigger warning
Thurs       # ABBREVIATION: Should trigger warning (must be full name)
"""
    
    #with open(dummy_filename, "w") as f:
    #    f.write(test_content)
    
    #print(f"Created test file: {dummy_filename}")
    
    print("Running test...\n")
    
    # Run the test
    result = test_stock_update_exclusion_date(dummy_filename)
    
    print(f"\nFinal Result (Is Excluded?): {result}")