import { AnalyticsPlugin } from "analytics";
import { isScriptLoaded } from "analytics-utils";

// eslint-disable-next-line @typescript-eslint/no-explicit-any
type Metadata = Record<string, any>;

interface LinkedInStatic {
  (a: string, b: string): void;
  q: [];
}

declare global {
  interface Window {
    _linkedin_data_partner_ids?: string[];
    lintrk?: LinkedInStatic;
  }
}

export interface LinkedInPluginConfig {
  partnerId: string;
}

interface Params {
  payload: {
    userId: string;
    traits: Metadata;
  };
  config: LinkedInPluginConfig;
}

const scriptSrc = "https://snap.licdn.com/li.lms-analytics/insight.min.js";

const linkedinPlugin = (config: LinkedInPluginConfig): AnalyticsPlugin => {
  const sharedConfig = {
    name: "linkedin",
    config,
  };

  if (process.env.BROWSER) {
    return {
      ...sharedConfig,

      initialize({ config }: Params): void {
        if (!config.partnerId) {
          throw new Error("No LinkedIn partnerId defined");
        }

        window._linkedin_data_partner_ids =
          window._linkedin_data_partner_ids ?? [];
        window._linkedin_data_partner_ids.push(config.partnerId);

        const scriptElement = document.createElement("script");
        scriptElement.type = "text/javascript";
        scriptElement.src = scriptSrc;
        scriptElement.async = true;

        const target = document.getElementsByTagName("script")[0];
        target.parentNode?.insertBefore(scriptElement, target);
      },

      loaded() {
        return isScriptLoaded(scriptSrc);
      },
    };
  } else {
    // TODO: Node API
    return sharedConfig;
  }
};

export default linkedinPlugin;