import { Session } from "next-auth";
import { JWT } from "next-auth/jwt";
import { DefaultSession } from "next-auth";

export interface ServiceToken {
  token: string;
  userId: string;
  expiresAt: number;
}

export interface ExtendedSession extends DefaultSession {
  user: {
    id: string;
    name?: string | null;
    email?: string | null;
    image?: string | null;
    username: string;
    first_name: string;
    last_name: string;
    role: string[];
  };
  accessToken: string;
  refreshToken?: string;
  serviceTokens: {
    rocketChat?: ServiceToken;
    leantime?: ServiceToken;
    calendar?: ServiceToken;
    mail?: ServiceToken;
    [key: string]: ServiceToken | undefined;
  };
  expires: string;
}

export interface ExtendedJWT extends JWT {
  accessToken?: string;
  refreshToken?: string;
  accessTokenExpires?: number;
  role?: string[];
  username?: string;
  first_name?: string;
  last_name?: string;
  name?: string | null;
  email?: string | null;
  serviceTokens: {
    rocketChat?: ServiceToken;
    leantime?: ServiceToken;
    calendar?: ServiceToken;
    mail?: ServiceToken;
    [key: string]: ServiceToken | undefined;
  };
}

export async function invalidateServiceTokens(session: ExtendedSession) {
  const serviceEndpoints = {
    rocketChat: `${process.env.NEXT_PUBLIC_IFRAME_PAROLE_URL?.split('/channel')[0]}/api/v1/logout`,
    leantime: `${process.env.LEANTIME_API_URL}/api/jsonrpc`,
    // Add other service endpoints as needed
  };

  const invalidatePromises = Object.entries(session.serviceTokens).map(async ([service, token]) => {
    if (!token) return;

    try {
      const endpoint = serviceEndpoints[service as keyof typeof serviceEndpoints];
      if (!endpoint) return;

      await fetch(endpoint, {
        method: 'POST',
        headers: {
          'Content-Type': 'application/json',
          ...(service === 'rocketChat' ? {
            'X-Auth-Token': token.token,
            'X-User-Id': token.userId,
          } : {}),
          ...(service === 'leantime' ? {
            'X-API-Key': process.env.LEANTIME_TOKEN!,
          } : {}),
        },
        body: service === 'leantime' ? JSON.stringify({
          jsonrpc: '2.0',
          method: 'leantime.rpc.auth.logout',
          id: 1
        }) : undefined,
      });
    } catch (error) {
      console.error(`Error invalidating ${service} token:`, error);
    }
  });

  await Promise.all(invalidatePromises);
}

export function clearAuthCookies() {
  const cookies = document.cookie.split(';');
  for (const cookie of cookies) {
    const [name] = cookie.split('=');
    // Only clear auth-related cookies
    if (name.trim().startsWith('next-auth.') || name.trim().startsWith('__Secure-next-auth.') || name.trim().startsWith('__Host-next-auth.')) {
      document.cookie = `${name.trim()}=; expires=Thu, 01 Jan 1970 00:00:00 UTC; path=/;`;
    }
  }
}

/**
 * Clear Keycloak session cookies
 * Keycloak cookies are typically set on Keycloak's domain, so we need to
 * try clearing them with different domain/path combinations
 */
export function clearKeycloakCookies() {
  const keycloakIssuer = process.env.NEXT_PUBLIC_KEYCLOAK_ISSUER;
  if (!keycloakIssuer) return;

  try {
    // Extract domain from Keycloak issuer
    const keycloakUrl = new URL(keycloakIssuer);
    const keycloakDomain = keycloakUrl.hostname;
    
    // Common Keycloak cookie names
    const keycloakCookieNames = [
      'KEYCLOAK_SESSION',
      'KEYCLOAK_SESSION_LEGACY',
      'KEYCLOAK_IDENTITY',
      'KEYCLOAK_IDENTITY_LEGACY',
      'AUTH_SESSION_ID',
      'KC_RESTART',
      'KC_RESTART_LEGACY'
    ];

    // Try to clear cookies with different domain/path combinations
    const domains = [keycloakDomain, `.${keycloakDomain}`, window.location.hostname];
    const paths = ['/', '/realms/', keycloakUrl.pathname];

    keycloakCookieNames.forEach(cookieName => {
      domains.forEach(domain => {
        paths.forEach(path => {
          // Try with domain
          document.cookie = `${cookieName}=; expires=Thu, 01 Jan 1970 00:00:00 UTC; path=${path}; domain=${domain};`;
          // Try without domain (for same-origin cookies)
          document.cookie = `${cookieName}=; expires=Thu, 01 Jan 1970 00:00:00 UTC; path=${path};`;
        });
      });
    });

    console.log('Attempted to clear Keycloak cookies');
  } catch (error) {
    console.error('Error clearing Keycloak cookies:', error);
  }
}