from sys import exit
from dotenv import load_dotenv, dotenv_values
from logging import (
    FileHandler,
    StreamHandler,
    INFO,
    basicConfig,
    error as log_error,
    info as log_info,
    getLogger,
    ERROR,
)
from os import path, environ, remove
from pymongo.mongo_client import MongoClient
from pymongo.server_api import ServerApi
from subprocess import run as srun

getLogger("pymongo").setLevel(ERROR)

if path.exists("log.txt"):
    with open("log.txt", "r+") as f:
        f.truncate(0)

if path.exists("rlog.txt"):
    remove("rlog.txt")

basicConfig(
    format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
    handlers=[FileHandler("log.txt"), StreamHandler()],
    level=INFO,
)

load_dotenv("config.env", override=True)

try:
    if bool(environ.get("_____REMOVE_THIS_LINE_____")):
        log_error("The README.md file there to be read! Exiting now!")
        exit(1)
except:
    pass

BOT_TOKEN = environ.get("BOT_TOKEN", "")
if len(BOT_TOKEN) == 0:
    log_error("BOT_TOKEN variable is missing! Exiting now")
    exit(1)

BOT_ID = BOT_TOKEN.split(":", 1)[0]

DATABASE_URL = environ.get("DATABASE_URL", "")
if len(DATABASE_URL) == 0:
    DATABASE_URL = None

if DATABASE_URL is not None:
    try:
        conn = MongoClient(DATABASE_URL, server_api=ServerApi("1"))
        db = conn.mltb
        old_config = db.settings.deployConfig.find_one({"_id": BOT_ID})
        config_dict = db.settings.config.find_one({"_id": BOT_ID})
        if old_config is not None:
            del old_config["_id"]
        if (
            old_config is not None
            and old_config == dict(dotenv_values("config.env"))
            or old_config is None
        ) and config_dict is not None:
            environ["UPSTREAM_REPO"] = config_dict["UPSTREAM_REPO"]
            environ["UPSTREAM_BRANCH"] = config_dict["UPSTREAM_BRANCH"]
        conn.close()
    except Exception as e:
        log_error(f"Database ERROR: {e}")

UPSTREAM_REPO = environ.get("UPSTREAM_REPO", "")
if len(UPSTREAM_REPO) == 0:
    UPSTREAM_REPO = None

UPSTREAM_BRANCH = environ.get("UPSTREAM_BRANCH", "")
if len(UPSTREAM_BRANCH) == 0:
    UPSTREAM_BRANCH = "master"

if UPSTREAM_REPO is not None:
    if path.exists(".git"):
        srun(["rm", "-rf", ".git"])

    update = srun(
        [
            f"git init -q \
                     && git config --global user.email e.anastayyar@gmail.com \
                     && git config --global user.name mltb \
                     && git add . \
                     && git commit -sm update -q \
                     && git remote add origin {UPSTREAM_REPO} \
                     && git fetch origin -q \
                     && git reset --hard origin/{UPSTREAM_BRANCH} -q"
        ],
        shell=True,
    )

    if update.returncode == 0:
        log_info("Successfully updated with latest commit from UPSTREAM_REPO")
    else:
        log_error(
            "Something went wrong while updating, check UPSTREAM_REPO if valid or not!"
        )