import { BrowserContext, Page } from 'playwright';

/**
 * Represents the device emulation mode
 */
export type DeviceMode = 'desktop' | 'mobile';

/**
 * Session state for a browser context
 */
export interface SessionState {
  sessionId: string;
  userId: string;
  deviceMode: DeviceMode;
  createdAt: Date;
  lastActivity: Date;
  currentUrl: string;
  isActive: boolean;
}

/**
 * Browser session configuration
 */
export interface SessionConfig {
  sessionId: string;
  userId: string;
  deviceMode: DeviceMode;
  userAgent?: string;
  viewport?: { width: number; height: number };
  locale?: string;
  timezone?: string;
  geolocation?: { latitude: number; longitude: number };
  upstreamProxy?: ProxyConfig;
  currency?: string;
}

/**
 * Upstream proxy configuration
 */
export interface ProxyConfig {
  server: string;
  username?: string;
  password?: string;
}

/**
 * Browser pool statistics
 */
export interface PoolStats {
  totalSessions: number;
  activeSessions: number;
  idleSessions: number;
  queuedRequests: number;
  totalBrowsers: number;
}

/**
 * DOM mutation data for streaming
 */
export interface DOMUpdate {
  type: 'mutation' | 'navigation' | 'resource' | 'console' | 'error' | 'html_snapshot';
  timestamp: number;
  data: any;
}

/**
 * Navigation request
 */
export interface NavigationRequest {
  sessionId: string;
  url: string;
  waitUntil?: 'load' | 'domcontentloaded' | 'networkidle';
}

/**
 * User interaction event
 */
export interface InteractionEvent {
  sessionId: string;
  type: 'click' | 'type' | 'scroll' | 'keypress';
  selector?: string;
  data?: any;
}

/**
 * Preview interaction event for live HTML preview
 */
export interface PreviewInteractionEvent {
  sessionId: string;
  type: 'preview_click' | 'preview_scroll' | 'preview_keyboard';
  x?: number;
  y?: number;
  scrollX?: number;
  scrollY?: number;
  key?: string;
  viewportWidth?: number;
  viewportHeight?: number;
}

/**
 * Authentication payload
 */
export interface AuthPayload {
  userId: string;
  email: string;
  role: string;
  plan: string;
}

/**
 * User credentials
 */
export interface UserCredentials {
  email: string;
  password: string;
}

/**
 * Browser session wrapper
 */
export interface IBrowserSession {
  sessionId: string;
  context: BrowserContext;
  page: Page;
  state: SessionState;
  navigate(url: string): Promise<void>;
  interact(event: InteractionEvent): Promise<void>;
  handlePreviewInteraction(event: PreviewInteractionEvent): Promise<void>;
  getHTML(): Promise<string>;
  getScreenshot(): Promise<Buffer>;
  close(): Promise<void>;
}

/**
 * Browser pool interface
 */
export interface IBrowserPool {
  getSession(config: SessionConfig): Promise<IBrowserSession>;
  releaseSession(sessionId: string): Promise<void>;
  closeSession(sessionId: string): Promise<void>;
  getStats(): PoolStats;
  cleanup(): Promise<void>;
}