import time
from pathlib import Path

# Setup paths
base_path = Path(__file__).parent
req_path = base_path / "requests"
user_path = base_path / "users"
chat_path = base_path / "single_chats"


req_path.mkdir(exist_ok=True)

print("Server online. Monitoring requests...")

while True:
    # 1. Grab everything in the folder
    # .iterdir() is efficient for scanning
    for file_path in req_path.iterdir():
        
        # FAILSAFE 1: Ignore folders or non-txt files (like .DS_Store or .tmp)
        if not file_path.is_file() or file_path.suffix != ".txt":
            print(f"Skipping non-txt file: {file_path.name}")
            continue 

        try:
            # 2. Try to read the content
            with open(file_path, "r") as f:
                content = f.read().strip()

            # FAILSAFE 2: Check if the file is empty or missing colons
            if not content or ":" not in content:
                print(f"Invalid or empty data in {file_path.name}, Deleting.")
                # make failed request file
                file_path.unlink()
                continue

            # 3. Parse the data
            # Use the '2' limit we discussed to protect passwords with colons
            parts = content.split(":", 2)
            
            # FAILSAFE 3: Check if we have enough parts (Command:User:Pass)
            if len(parts) < 3:
                print(f"Incomplete data in {file_path.name}, Deleting.")
                # TODO Make failed request file
                file_path.unlink()
                continue

            command, user, data = parts
            if not command.isalnum() or not user.isalnum() or not data.isalnum():
                print(f"Invalid parameters in {file_path.name}, Deleting.")
                # TODO Make failed request file
                continue
            print(f"Processing {command} for {user}...")

            if command == "LOGIN":
                # TODO
                #1. check if user exists as a folder
                #2. hash password and check against user hash.txt if exist
                #3. Make success request file
                #4. Fail file as try/except
                pass
            if command == "CREATEUSER":
                # TODO
                #1. Make a new folder with the name
                #2. Hash password and store in hash.txt
                #3. Init basic files
                #4. Make success request file
                #5. Fail file as try/except
                pass

            # 4. Clean up: Delete the request after successful processing
            file_path.unlink()

        except Exception as e:
            # FAILSAFE 4: Catch-all for weird errors (like file being locked)
            print(f"Error processing {file_path.name}: {e}")
            continue

    # 5. Heartbeat
    time.sleep(0.1)