import { hostEmitter, createCommands, BaseError } from '@jolibox/common';
import { trackError } from './utils/event-tracker';
document.addEventListener('DOMContentLoaded', () => hostEmitter.emit('onDocumentReady', timeline.startTime));

const timelineFactory = () => {
  let _beginLoad = 0;
  return {
    set startTime(time: number) {
      _beginLoad = time;
    },
    get startTime(): number {
      return _beginLoad;
    }
  };
};

export const timeline = timelineFactory();

const commands = createCommands();

const rejectHandler = (event: PromiseRejectionEvent | ErrorEvent | BaseError) => {
  let errorInfo;

  if (event instanceof ErrorEvent) {
    errorInfo = {
      message: event.message,
      source: event.filename,
      lineno: event.lineno,
      colno: event.colno,
      error: event.error ? event.error.stack || event.error.toString() : null
    };
  } else if ('reason' in event) {
    // PromiseRejectionEvent
    const reason = event.reason;
    errorInfo = {
      message: reason instanceof Error ? reason.message : String(reason),
      stack: reason instanceof Error ? reason.stack : null,
      type: 'unhandledrejection'
    };
  } else if (event instanceof BaseError) {
    errorInfo = {
      message: event.message,
      name: event.name,
      stack: event.stack
    };
  } else {
    errorInfo = { unknownError: true };
  }

  commands
    .executeCommand('ReportSDK.traceSystem', {
      event: 'globalJsError',
      info: {
        err: JSON.stringify(errorInfo)
      }
    })
    .catch((e) => {
      // 兜底上报
      console.error(`Fallback report: ${e} ${JSON.stringify(errorInfo)}`);
      trackError({
        err: JSON.stringify(errorInfo)
      });
    });
};

export const reportError = rejectHandler;

window.addEventListener('unhandledrejection', rejectHandler.bind(this));
window.addEventListener('error', rejectHandler.bind(this));
window.onerror = (message, source, lineno, colno, error) => {
  const errorInfo = {
    message,
    source,
    lineno,
    colno,
    stack: error?.stack,
    errorString: error?.toString()
  };

  commands
    .executeCommand('ReportSDK.traceSystem', {
      event: 'globalJsError',
      info: {
        err: JSON.stringify(errorInfo)
      }
    })
    .catch((e) => {
      // 兜底上报
      trackError({
        err: JSON.stringify(errorInfo)
      });
    });
};