import logging
import os
import sys
from datetime import UTC, datetime
from logging.config import dictConfig
from pathlib import Path
from typing import override

from pythonjsonlogger.json import JsonFormatter


class ISOJsonFormatter(JsonFormatter):
    @override
    def formatTime(self, record: logging.LogRecord, datefmt: str | None = None) -> str:
        dt = datetime.fromtimestamp(record.created, tz=UTC)
        return dt.isoformat(timespec="milliseconds").replace("+00:00", "Z")


LOG_LEVEL = os.getenv("MEDIAMANAGER_LOG_LEVEL", "INFO").upper()
LOG_FILE = Path(os.getenv("LOG_FILE", "/app/config/media_manager.log"))
LOGGING_CONFIG = {
    "version": 1,
    "disable_existing_loggers": False,
    "filters": {
        "correlation_id": {
            "()": "asgi_correlation_id.CorrelationIdFilter",
            "uuid_length": 32,
            "default_value": "-",
        },
    },
    "formatters": {
        "default": {
            "format": "%(asctime)s - [%(correlation_id)s] %(levelname)s - %(name)s - %(funcName)s(): %(message)s"
        },
        "json": {
            "()": ISOJsonFormatter,
            "format": "%(asctime)s %(correlation_id)s %(levelname)s %(name)s %(message)s",
            "rename_fields": {
                "levelname": "level",
                "asctime": "timestamp",
                "name": "module",
            },
        },
    },
    "handlers": {
        "console": {
            "class": "logging.StreamHandler",
            "formatter": "default",
            "filters": ["correlation_id"],
            "stream": sys.stdout,
        },
        "file": {
            "class": "logging.handlers.RotatingFileHandler",
            "formatter": "json",
            "filters": ["correlation_id"],
            "filename": str(LOG_FILE),
            "maxBytes": 10485760,
            "backupCount": 5,
            "encoding": "utf-8",
        },
    },
    "root": {
        "level": LOG_LEVEL,
        "handlers": ["console", "file"],
    },
    "loggers": {
        "uvicorn": {"handlers": ["console", "file"], "level": "DEBUG"},
        "uvicorn.access": {"handlers": ["console", "file"], "level": "DEBUG"},
        "fastapi": {"handlers": ["console", "file"], "level": "DEBUG"},
    },
}


def setup_logging() -> None:
    dictConfig(LOGGING_CONFIG)
    logging.basicConfig(
        level=LOG_LEVEL,
        format="%(asctime)s - %(levelname)s - %(name)s - %(funcName)s(): %(message)s",
        stream=sys.stdout,
    )
    logging.getLogger("urllib3").setLevel(logging.WARNING)
    logging.getLogger("requests").setLevel(logging.WARNING)
    logging.getLogger("transmission_rpc").setLevel(logging.WARNING)
    logging.getLogger("qbittorrentapi").setLevel(logging.WARNING)
    logging.getLogger("sabnzbd_api").setLevel(logging.WARNING)