import * as Sentry from '@sentry/nextjs';

const SENTRY_DSN: string | undefined =
  process.env.SENTRY_DSN || process.env.NEXT_PUBLIC_SENTRY_DSN;

export enum ClientLogType {
  UNCAUGHT_ERROR_PAGE = 'UNCAUGHT_ERROR_PAGE',
  CHECKOUT = 'CHECKOUT'
}

const ALLOWED_CLIENT_LOG_TYPES: ClientLogType[] = [
  ClientLogType.UNCAUGHT_ERROR_PAGE,
  ClientLogType.CHECKOUT
];

const isNetworkError = (exception: unknown): boolean => {
  if (!(exception instanceof Error)) return false;

  const networkErrorPatterns = [
    'networkerror',
    'failed to fetch',
    'network request failed',
    'network error',
    'loading chunk',
    'chunk load failed'
  ];

  if (exception.name === 'NetworkError') return true;

  if (exception.name === 'TypeError') {
    return networkErrorPatterns.some((pattern) =>
      exception.message.toLowerCase().includes(pattern)
    );
  }

  return networkErrorPatterns.some((pattern) =>
    exception.message.toLowerCase().includes(pattern)
  );
};

export const initSentry = (
  type: 'Server' | 'Client' | 'Edge',
  options: Sentry.BrowserOptions | Sentry.NodeOptions | Sentry.EdgeOptions = {}
) => {
  // TODO: Remove Zero Project DSN

  const baseConfig = {
    dsn:
      SENTRY_DSN ||
      options.dsn ||
      'https://d8558ef8997543deacf376c7d8d7cf4b@o64293.ingest.sentry.io/4504338423742464',
    initialScope: {
      tags: {
        APP_TYPE: 'ProjectZeroNext',
        TYPE: type,
        ...((options.initialScope as any)?.tags || {})
      }
    },
    tracesSampleRate: 0,
    integrations: []
  };

  if (type === 'Server' || type === 'Edge') {
    Sentry.init(baseConfig);
  } else if (type === 'Client') {
    Sentry.init({
      ...baseConfig,
      beforeSend: (event, hint) => {
        if (
          !ALLOWED_CLIENT_LOG_TYPES.includes(
            event.tags?.LOG_TYPE as ClientLogType
          )
        ) {
          return null;
        }

        if (isNetworkError(hint?.originalException)) {
          return null;
        }

        return event;
      }
    });
  }
};