import json
import os
import yaml
from typing import Dict, List, Any

class Config:
    def __init__(self, config_path: str = None):
        if config_path is None:
            config_path = os.environ.get('EMERGENCY_CONFIG', 'config.json')

        self.config_path = config_path
        self.config = self._load_config()

    def _load_config(self) -> Dict[str, Any]:
        """Load configuration from file"""
        try:
            with open(self.config_path, 'r') as f:
                if self.config_path.endswith('.yaml') or self.config_path.endswith('.yml'):
                    return yaml.safe_load(f)
                else:
                    return json.load(f)
        except FileNotFoundError:
            raise Exception(f"Configuration file {self.config_path} not found")
        except Exception as e:
            raise Exception(f"Failed to load configuration: {str(e)}")

    @property
    def server_host(self) -> str:
        return self.config.get('server', {}).get('host', '127.0.0.1')

    @property
    def server_port(self) -> int:
        return self.config.get('server', {}).get('port', 1127)

    @property
    def key_route(self) -> str:
        return self.config.get('routes', {}).get('key_route', '/emergency-key-xyz123')

    @property
    def health_route(self) -> str:
        return self.config.get('routes', {}).get('health_route', '/health-check')

    @property
    def key_file_path(self) -> str:
        key_file = self.config.get('files', {}).get('key_file')
        if not key_file:
            raise Exception("key_file not configured")
        return key_file

    @property
    def dummy_file_path(self) -> str:
        dummy_file = self.config.get('files', {}).get('dummy_file')
        if not dummy_file:
            raise Exception("dummy_file not configured")
        return dummy_file

    @property
    def ntfy_backends_key(self) -> List[str]:
        backends = self.config.get('notifications', {}).get('key_backends', [])
        if not backends:
            raise Exception("No notification backends configured for key access")
        return backends

    @property
    def ntfy_backends_health(self) -> List[str]:
        backends = self.config.get('notifications', {}).get('health_backends', [])
        if not backends:
            raise Exception("No notification backends configured for health check")
        return backends

    @property
    def log_level(self) -> str:
        return self.config.get('notifications', {}).get('log_level', 'WARNING')

    @property
    def send_all_logs(self) -> bool:
        return self.config.get('notifications', {}).get('send_all_logs', True)



    @property
    def ntfy_key_message(self) -> str:
        return self.config.get('notifications', {}).get('key_message', 'EMERGENCY: Decryption key accessed')

    @property
    def ntfy_health_message(self) -> str:
        return self.config.get('notifications', {}).get('health_message', 'Health check performed')