import logging
import sys
import requests

from logstash_async.transport import HttpTransport
from logstash_async.handler import AsynchronousLogstashHandler

host = 'logstash.robo4you.at'
port = 443

logstash_logger = logging.getLogger('logstash')
logstash_logger.setLevel(logging.INFO)

transport = HttpTransport(
    host,
    port,
    username="robo",
    password="competition",
    timeout=60.0,
)

asynchronousLogstashHandler = AsynchronousLogstashHandler(
    host,
    port,
    transport=transport,
    database_path='logs.db'
)

class StreamToLogger(object):
    """
    Fake file-like stream object that redirects writes to a logger instance.
    """
    def __init__(self, log_level=logging.INFO):
        self.logger = logging.getLogger('logstash')
        self.console = sys.stdout
        self.log_level = log_level
        self.linebuf = ''

    def write(self, buf):
        self.console.write(buf)
        temp_linebuf = self.linebuf + buf
        self.linebuf = ''
        for line in temp_linebuf.splitlines(True):
            if line[-1] == '\n':
                self.logger.log(self.log_level, line.rstrip())
            else:
                self.linebuf += line

    def flush(self):
        self.console.flush()
        if self.linebuf != '':
            self.logger.log(self.log_level, self.linebuf.rstrip())
        self.linebuf = ''
        asynchronousLogstashHandler.flush()

try:
    r = requests.head(f"http://{host}:{port}")
    if r.status_code == 400:
        logstash_logger.addHandler(asynchronousLogstashHandler)

        sl = StreamToLogger(logging.INFO)
        sys.stdout = sl
    else:
        print(f"Could not connect to {host} -> {r.status_code}!")

except requests.exceptions.ConnectionError as identifier:
    print(f"Could not connect to {host}!")
    pass

class Logging(object):

    @staticmethod
    def get_logger() -> logging.Logger:
        return logstash_logger
    
    @staticmethod
    def set_debug():
        logstash_logger.setLevel(logging.DEBUG)