"""Authentication flow analyzer."""

import logging
from typing import Dict, Any, Optional
from dataclasses import dataclass
from enum import Enum

from ..network.analyzer import AuthType

logger = logging.getLogger(__name__)


@dataclass
class TokenLifecycle:
    """Token lifecycle information."""
    
    creation_endpoint: str
    refresh_endpoint: Optional[str]
    expiration_time: Optional[int]
    storage_location: str  # "cookie", "localStorage", "memory"


@dataclass
class RefreshMechanism:
    """Token refresh mechanism."""
    
    method: str  # "endpoint", "automatic"
    endpoint: Optional[str]
    trigger: str  # "before_expiry", "on_401"


@dataclass
class OAuthConfig:
    """OAuth configuration."""
    
    authorization_url: str
    token_url: str
    client_id: str
    redirect_uri: str
    scope: str


@dataclass
class AuthSession:
    """Authenticated session."""
    
    token: str
    token_type: str
    expires_at: Optional[int]
    refresh_token: Optional[str]


class AuthFlowAnalyzer:
    """Analyzes authentication flows."""
    
    def detect_auth_type(self, requests, responses) -> AuthType:
        """Detect authentication type from requests/responses."""
        from ..network.analyzer import RequestAnalyzer
        
        analyzer = RequestAnalyzer()
        
        for req in requests:
            analyzed = analyzer.analyze(req)
            if analyzed.auth_type != AuthType.NONE:
                return analyzed.auth_type
        
        return AuthType.NONE
    
    def trace_token_lifecycle(self, requests, responses) -> TokenLifecycle:
        """Trace token lifecycle through requests."""
        # Find token creation
        creation_endpoint = None
        for resp in responses:
            if resp.status == 200 and "token" in resp.url.lower():
                creation_endpoint = resp.url
                break
        
        return TokenLifecycle(
            creation_endpoint=creation_endpoint or "",
            refresh_endpoint=None,
            expiration_time=None,
            storage_location="unknown",
        )
    
    def find_refresh_mechanism(self, requests, responses) -> Optional[RefreshMechanism]:
        """Find token refresh mechanism."""
        # Look for refresh endpoints
        for req in requests:
            if "refresh" in req.url.lower() or "renew" in req.url.lower():
                return RefreshMechanism(
                    method="endpoint",
                    endpoint=req.url,
                    trigger="on_401",
                )
        
        return None
    
    def extract_oauth_config(self, page_content: str) -> Optional[OAuthConfig]:
        """Extract OAuth configuration from page."""
        # Parse OAuth config from JavaScript or HTML
        # This is a placeholder
        return None
    
    async def replay_auth_flow(self, auth_url: str) -> Optional[AuthSession]:
        """Replay authentication flow."""
        # This would automate the login process
        logger.info(f"Replaying auth flow for {auth_url}")
        return None






