package oauth

import (
	"context"

	"github.com/yaoapp/yao/openapi/oauth/types"
)

// AuthorizationServer returns the authorization server endpoint URL
func (s *Service) AuthorizationServer(ctx context.Context) string {
	return s.config.IssuerURL
}

// ProtectedResource returns the protected resource endpoint URL
func (s *Service) ProtectedResource(ctx context.Context) string {
	return s.config.IssuerURL
}

// Authorize processes an authorization request and returns an authorization code
// The authorization code can be exchanged for an access token
func (s *Service) Authorize(ctx context.Context, request *types.AuthorizationRequest) (*types.AuthorizationResponse, error) {
	// TODO: Implement authorization flow
	return nil, nil
}

// Token exchanges an authorization code for an access token
// This is the core token endpoint functionality
func (s *Service) Token(ctx context.Context, grantType string, code string, clientID string, codeVerifier string) (*types.Token, error) {
	// TODO: Implement token exchange
	return nil, nil
}

// Revoke revokes an access token or refresh token
// Once revoked, the token cannot be used for accessing protected resources
func (s *Service) Revoke(ctx context.Context, token string, tokenTypeHint string) error {
	// TODO: Implement token revocation
	return nil
}

// RefreshToken exchanges a refresh token for a new access token
// This allows clients to obtain fresh access tokens without user interaction
func (s *Service) RefreshToken(ctx context.Context, refreshToken string, scope string) (*types.RefreshTokenResponse, error) {
	// TODO: Implement refresh token exchange
	return nil, nil
}

// RotateRefreshToken rotates a refresh token and invalidates the old one
// This implements refresh token rotation for enhanced security
func (s *Service) RotateRefreshToken(ctx context.Context, oldToken string) (*types.RefreshTokenResponse, error) {
	// TODO: Implement refresh token rotation
	return nil, nil
}