from pathlib import Path
import os, json


class Config:
    CONF_DIR=os.path.join(os.environ['HOME'],".clusterman/")
    CONF_FILE=os.path.join(CONF_DIR,"clusterman.json")
    DEFAULT_CONFIG = {
        "paths": {
            "nodes": os.path.join(CONF_DIR,"nodeslist.json")
        },
        "cluster": {
            "ip4_from": "10.128.0.133",
            "ip4_to": "10.128.0.140",
            "ip4_ignore": ["10.0.0.5", "10.0.0.1"]
        }
    }
    
    def __init__(self):
        Path(self.CONF_DIR).mkdir(parents=True, exist_ok=True)
        self.config=self.DEFAULT_CONFIG
        self.load()

    def load(self):
        if os.path.exists(self.CONF_FILE):
            with open(self.CONF_FILE) as f:
                self.config=json.load(f)
        else:
            self.save()
                
    def save(self):
        with open(self.CONF_FILE, "w") as f:
            f.write(json.dumps(self.config))

    def __getitem__(self, key):
        return self.config[key]

    def __setitem__(self, key, value):
        self.config[key]=value
    

CONF=Config()