/**
 * DAnalytics - Simple Analytics/Event Tracking Utility
 *
 * Usage:
 *   const analytics = new DAnalytics({ appName: "myApp", debug: true });
 *   analytics.trackEvent("user_login", { userId: 123 });
 *   analytics.trackPageView("/home");
 */

import { dlog } from "./dlog";
import { dnetwork } from "./dnetwork";

export interface TConfig {
  server: string;
  app_id: string;
  app_version?: string;
  device_os?: string;
  device_id?: string;
  device_api?: string;
  debug?: boolean;
}

export class DAnalytics {
  private config: TConfig;
  private sessionKey: string | null = null;
  private eventQueue: Array<{ type: string; data: any; ts: number }> = [];

  constructor(config: TConfig) {
    this.config = config;
    this.initSession();
  }

  /**
   * Initialize analytics session by calling the launch API.
   */
  private async initSession() {
    const url = `http://${this.config.server}/api/analytics/launch`;
    const payload = {
      app_id: this.config.app_id,
      app_version: this.config.app_version || "0.0",
      device_os: this.config.device_os || "unknown",
      device_id: this.config.device_id || "unknown",
      device_api: this.config.device_api || "unknown",
    };
    try {
      const resp = await dnetwork.postSimpleStore(url, payload);
      this.sessionKey = resp.out.session;
      if (this.config.debug) {
        dlog.d("[DAnalytics] Session initialized:", this.sessionKey);
      }
    } catch (err) {
      if (this.config.debug) {
        // eslint-disable-next-line no-console
        dlog.d("[DAnalytics] Failed to initialize session", err);
      }
    }
  }
  /**
   * Track a specific user action by calling the /api/analytics/action endpoint.
   * @param type The type of action (e.g., "click")
   * @param target_id The target element's ID (e.g., "btn1")
   * @param tag A tag describing the action (e.g., "btn_click")
   * @returns The response from the server
   */
  async trackAction(
    type: string,
    target_id: string,
    tag: string
  ): Promise<any> {
    if (!this.sessionKey) {
      if (this.config.debug) {
        // eslint-disable-next-line no-console
        console.warn(
          "[DAnalytics] Session not initialized, cannot track action."
        );
      }
      return;
    }
    const url = `http://${this.config.server}/api/analytics/action`;
    const payload = {
      app_id: this.config.app_id,
      session: this.sessionKey,
      type,
      action_id: target_id,
      action_tag: tag,
    };
    try {
      const data = await dnetwork.postSimpleStore(url, payload);
      if (this.config.debug) {
        // eslint-disable-next-line no-console
        console.log("[DAnalytics] Tracked action:", data);
      }
      return data;
    } catch (err) {
      if (this.config.debug) {
        // eslint-disable-next-line no-console
        console.error("[DAnalytics] Failed to track action", err);
      }
      throw err;
    }
  }
  // This will log anything in the console.
  // This will flash all log history
  async trackConsoleLog() {
    const url = `http://${this.config.server}/api/analytics/adhoc`;
    return await dnetwork.postSimpleStore(url, {
      app_id: this.config.app_id,
      session: this.sessionKey,
      console_log: dlog.getLogHistoryAndFlash(),
    });
  }
}