from parser import get_message_type, parse_line, Line, MessageType
import logging
from logger import logger

def read_logs(path: str) -> Line:
    for line in open(path, 'r'):
        #1.2.1
        logger.debug(f"read {len(line.encode('utf-8'))} bytes") 
        
        try:
            parsed_line = parse_line(line.strip())
        except ValueError as e:
            logger.error(str(e))
            continue


        msg_type = get_message_type(parsed_line.message)
        if msg_type == MessageType.SUCCESSFUL_LOGIN:
            logger.info("read successful login message")
        #1.2.2
        elif msg_type == MessageType.CLOSED_CONNECTION:
            logger.info("read closed connection message")
        #1.2.3
        elif msg_type == MessageType.FAILED_LOGIN:
            logger.warning("read failed login message")
        #1.2.4
        elif msg_type == MessageType.INVALID_PASSWORD:
            logger.error("read invalid password message")
        elif msg_type == MessageType.INVALID_USERNAME:
            logger.error("read invalid username message")
        #1.2.5
        elif msg_type == MessageType.BREAK_IN_ATTEMPT:
            logger.critical("read break-in attempt message")

        yield parsed_line