1 files changed, 108 insertions, 0 deletions
diff --git a/shared/logger/src/errorkit/errorkit.ts b/shared/logger/src/errorkit/errorkit.ts
new file mode 100644
index 0000000..dd40e26
--- /dev/null
+++ b/shared/logger/src/errorkit/errorkit.ts
@@ -0,0 +1,108 @@
+import { Severity } from '@sentry/types';
+import type { Logger, LoggerFactory } from '../types';
+import type {
+    captureException,
+    captureMessage,
+    addBreadcrumb,
+    ErrorHub,
+    ErrorKitConfig,
+} from './types';
+
+type PartialSentryModule = {
+    captureException: typeof captureException;
+    captureMessage: typeof captureMessage;
+    addBreadcrumb: typeof addBreadcrumb;
+};
+
+export type ErrorKitInstance = InstanceType<typeof ErrorKit>;
+
+export const setupErrorKit = (
+    config: ErrorKitConfig,
+    loggerFactory: LoggerFactory,
+): ErrorKitInstance | undefined => {
+    if (typeof window === 'undefined') return;
+    const log = loggerFactory.loggerFor('errorkit');
+    const isMultiDev = window.location.href.includes('multidev');
+    const BUILD_ENV = process.env.NODE_ENV;
+    const isErrorKitEnabled = BUILD_ENV === 'production' && !isMultiDev;
+
+    const initializeErrorKit =
+        async (): Promise<PartialSentryModule | null> => {
+            let sentry: PartialSentryModule | null = null;
+
+            if (isErrorKitEnabled) {
+                try {
+                    const { createSentryConfig } = await import(
+                        '@amp-metrics/sentrykit'
+                    );
+                    const Sentry = await import('@sentry/browser');
+                    Sentry.init(createSentryConfig(config));
+
+                    sentry = {
+                        addBreadcrumb: Sentry.addBreadcrumb,
+                        captureException: Sentry.captureException,
+                        captureMessage: Sentry.captureMessage,
+                    };
+                } catch (e) {
+                    log.error('something went wrong setting up errorKit', e);
+                }
+            }
+
+            return sentry;
+        };
+
+    return new ErrorKit(initializeErrorKit(), log, isErrorKitEnabled);
+};
+
+class ErrorKit implements ErrorHub {
+    private readonly sentry: Promise<PartialSentryModule | null>;
+    private readonly logger: Logger;
+    private readonly isErrorKitEnabled: boolean;
+    constructor(
+        sentry: Promise<PartialSentryModule | null>,
+        log: Logger,
+        isErrorKitEnabled: boolean,
+    ) {
+        this.sentry = sentry;
+        this.logger = log;
+        this.isErrorKitEnabled = isErrorKitEnabled;
+
+        if (!isErrorKitEnabled) {
+            log.debug('errorkit is disabled');
+        }
+    }
+
+    async captureMessage(message: string) {
+        if (!this.isErrorKitEnabled) return;
+        const sentry = await this.sentry;
+
+        if (sentry) {
+            sentry.addBreadcrumb({
+                category: 'log.warn',
+                level: Severity.Warning,
+            });
+            sentry.captureMessage(message, Severity.Warning);
+        } else {
+            this.logger.warn(`${message} was not sent to errorKit`);
+        }
+    }
+
+    async captureException(exception: Error) {
+        if (!this.isErrorKitEnabled) return;
+        const sentry = await this.sentry;
+
+        if (sentry) {
+            sentry.addBreadcrumb({
+                type: 'error',
+                category: 'error',
+                level: Severity.Error,
+            });
+            sentry.captureException(exception);
+        } else {
+            this.logger.warn(
+                `The following exception was not sent to errorKit:`,
+                exception,
+            );
+        }
+    }
+}