from typing import Dict, Any
from .base import OAuthProvider


class GitHubOAuthProvider(OAuthProvider):
    """GitHub OAuth provider implementation."""
    
    @property
    def name(self) -> str:
        return 'github'
        
    @property
    def display_name(self) -> str:
        return 'GitHub'
        
    def get_client_config(self) -> Dict[str, Any]:
        """Return GitHub OAuth client configuration."""
        return {
            'access_token_url': 'https://github.com/login/oauth/access_token',
            'authorize_url': 'https://github.com/login/oauth/authorize',
            'api_base_url': 'https://api.github.com/',
            'client_kwargs': {
                'scope': 'user:email'
            }
        }
        
    def get_user_info(self, token: Dict[str, Any]) -> Dict[str, Any]:
        """Extract user information from GitHub OAuth token response."""
        client = self.get_client()
        
        # Get user profile
        user_resp = client.get('user', token=token)
        user_data = user_resp.json()
        
        # Get user email (may be private)
        email = user_data.get('email')
        if not email:
            # If email is private, get from emails endpoint
            emails_resp = client.get('user/emails', token=token)
            emails = emails_resp.json()
            # Find primary email
            for email_obj in emails:
                if email_obj.get('primary', False):
                    email = email_obj.get('email')
                    break
        
        return {
            'id': str(user_data.get('id')),
            'email': email,
            'name': user_data.get('name') or user_data.get('login'),
            'picture': user_data.get('avatar_url')
        }