import logging, sys, os
import json

logging.basicConfig(stream=sys.stdout, level=logging.INFO)
LOGGER = logging.getLogger("XPost")

def as_json(obj, indent=None,sort_keys=False) -> str:
    return json.dumps(
        obj.__dict__ if not isinstance(obj, dict) else obj, 
        default=lambda o: o.__json__() if hasattr(o, '__json__') else o.__dict__,
        indent=indent,
        sort_keys=sort_keys)

def canonical_label(label: str | None, href: str):
    if not label or label == href:
        return True
    
    split = href.split('://', 1)
    if len(split) > 1:
        if split[1] == label:
            return True
    
    return False

def safe_get(obj: dict, key: str, default):
    val = obj.get(key, default)
    return val if val else default

def as_envvar(text: str | None) -> str | None:
    if not text:
        return None
    
    if text.startswith('env:'):
        return os.environ.get(text[4:], '')
    
    return text