From fc5338903b20d428a26439a36bb8a9b3f535257f Mon Sep 17 00:00:00 2001
From: Carlos Valente <34649812+cpvalente@users.noreply.github.com>
Date: Fri, 23 Feb 2024 08:52:08 +0100
Subject: [PATCH] feat: generate crash report (#787)

---
 apps/server/src/app.ts                       |  3 ++
 apps/server/src/setup.ts                     |  3 ++
 apps/server/src/utils/generateCrashReport.ts | 49 ++++++++++++++++++++
 3 files changed, 55 insertions(+)
 create mode 100644 apps/server/src/utils/generateCrashReport.ts

diff --git a/apps/server/src/app.ts b/apps/server/src/app.ts
index 7aef7db95..58ac79de4 100644
--- a/apps/server/src/app.ts
+++ b/apps/server/src/app.ts
@@ -45,6 +45,7 @@ import { populateDemo } from './modules/loadDemo.js';
 import { getState, updateRundownData } from './stores/runtimeState.js';
 import { setRundown } from './services/rundown-service/RundownService.js';
 import { getPlayableEvents } from './services/rundown-service/rundownUtils.js';
+import { generateCrashReport } from './utils/generateCrashReport.js';
 
 console.log(`Starting Ontime version ${ONTIME_VERSION}`);
 
@@ -286,12 +287,14 @@ process.on('exit', (code) => console.log(`Ontime shutdown with code: ${code}`));
 
 process.on('unhandledRejection', async (error) => {
   console.error('Error: unhandled rejection', error);
+  generateCrashReport(error);
   logger.error(LogOrigin.Server, `Error: unhandled rejection ${error}`);
   await shutdown(1);
 });
 
 process.on('uncaughtException', async (error) => {
   console.error('Error: uncaught exception', error);
+  generateCrashReport(error);
   logger.error(LogOrigin.Server, `Error: uncaught exception ${error}`);
   await shutdown(1);
 });
diff --git a/apps/server/src/setup.ts b/apps/server/src/setup.ts
index e2fddea2a..3734bd47f 100644
--- a/apps/server/src/setup.ts
+++ b/apps/server/src/setup.ts
@@ -123,3 +123,6 @@ export const pathToStartDemo = config.demo.filename.map((file) => {
 
 // path to restore file
 export const resolveRestoreFile = join(getAppDataPath(), config.restoreFile);
+
+// path to crash reports
+export const resolveCrashReportDirectory = getAppDataPath();
diff --git a/apps/server/src/utils/generateCrashReport.ts b/apps/server/src/utils/generateCrashReport.ts
new file mode 100644
index 000000000..82e954e6a
--- /dev/null
+++ b/apps/server/src/utils/generateCrashReport.ts
@@ -0,0 +1,49 @@
+import { writeFileSync } from 'fs';
+import { join } from 'path';
+
+import { ONTIME_VERSION } from '../ONTIME_VERSION.js';
+import { get } from '../services/rundown-service/rundownCache.js';
+import { getState } from '../stores/runtimeState.js';
+import { resolveCrashReportDirectory } from '../setup.js';
+
+/**
+ * Writes a file to the crash report location
+ * @param fileName
+ * @param content
+ */
+function writeToFile(fileName: string, content: object) {
+  const path = join(resolveCrashReportDirectory, fileName);
+  try {
+    const textContent = JSON.stringify(content, null, 2);
+    writeFileSync(path, textContent);
+  } catch (e_rror) {
+    /** We do not handle the error here */
+  }
+}
+
+/*
+ * Generates a crash report
+ * @param error
+ */
+export function generateCrashReport(maybeError: unknown) {
+  const timeNow = new Date().toISOString();
+  const runtimeState = getState();
+  const rundownState = get();
+  const error =
+    maybeError instanceof Error
+      ? {
+          message: maybeError.message,
+          stack: maybeError.stack || 'No stack trace available',
+        }
+      : String(maybeError);
+
+  const crashReport = {
+    time: timeNow,
+    version: ONTIME_VERSION,
+    error,
+    runtimeState,
+    rundownState,
+  };
+
+  writeToFile(`crash-log-${timeNow}.log`, crashReport);
+}