WIP rework env file

.env.example

@@ -3,6 +3,18 @@
 # The env the app is running in e.g. development, testflight, production
 EXPO_PUBLIC_ENV=development
 
+# App view DID
+EXPO_PUBLIC_APPVIEW_DID=
+
+# Chat service DID
+EXPO_PUBLIC_CHAT_DID=
+
+# Bitdrift
+BITDRIFT_API_KEY=
+
+# Sentry (deprecated)
+SENTRY_AUTH_TOKEN=
+
 # The log level for the app.
 EXPO_PUBLIC_LOG_LEVEL=debug
 # Currently unused. Enable debug for a subset of the debug logs.
@@ -16,9 +28,3 @@ EXPO_PUBLIC_BUNDLE_IDENTIFIER=
 # each build. This should only be used for Statsig reporting and shouldn't be
 # used to identify a specific bundle.
 EXPO_PUBLIC_BUNDLE_DATE=0
-
-# Bitdrift
-BITDRIFT_API_KEY=
-
-# Sentry (deprecated)
-SENTRY_AUTH_TOKEN=

src/env.ts

@@ -1,10 +1,66 @@
 import {Did} from '@atproto/api'
 
-export const LOG_DEBUG = process.env.EXPO_PUBLIC_LOG_DEBUG || ''
+/**
+ * Indicates whether the app is running in TestFlight mode
+ */
+export const IS_TESTFLIGHT = process.env.EXPO_PUBLIC_ENV === 'testflight'
+
+/**
+ * Indicates whether the app is __DEV__ or TestFlight
+ */
+export const IS_INTERNAL = __DEV__ || IS_TESTFLIGHT
+
+/**
+ * The DID of the appview service to proxy to. If undefined, use Bluesky's
+ * default app view.
+ */
+export const APPVIEW_DID: Did | undefined = process.env.EXPO_PUBLIC_APPVIEW_DID
+
+/**
+ * The DID of the chat service to proxy to. If undefined, chat should be
+ * disabled.
+ */
+export const CHAT_DID: Did | undefined = process.env.EXPO_PUBLIC_CHAT_DID
+
+/**
+ * Bitdrift API key. If undefined, Bitdrift should be disabled.
+ */
+export const BITDRIFT_API_KEY: string | undefined =
+  process.env.EXPO_PUBLIC_BITDRIFT_API_KEY
+
+/**
+ * Sentry API key. If undefined, Sentry should be disabled.
+ */
+export const SENTRY_API_KEY: string | undefined =
+  process.env.EXPO_PUBLIC_SENTRY_API_KEY
+
+/**
+ * The log level for the app.
+ */
 export const LOG_LEVEL = (process.env.EXPO_PUBLIC_LOG_LEVEL || 'info') as
   | 'debug'
   | 'info'
   | 'warn'
   | 'error'
 
-export const APPVIEW_DID: Did = process.env.APPVIEW_DID || ''
+/**
+ * Currently unused. Enable debug for a subset of the debug logs.
+ */
+export const LOG_DEBUG: string = process.env.EXPO_PUBLIC_LOG_DEBUG || ''
+
+/**
+ * The commit hash that the current bundle was made from. The user can see the
+ * commit hash in the app's settings along with the other version info. Useful
+ * for debugging/reporting.
+ */
+export const BUNDLE_IDENTIFIER: string =
+  process.env.EXPO_PUBLIC_BUNDLE_IDENTIFIER ?? ''
+
+/**
+ * This will always be in the format of YYMMDD, so that it always increases for
+ * each build. This should only be used for Statsig reporting and shouldn't be
+ * used to identify a specific bundle.
+ */
+export const BUNDLE_DATE: number = IS_INTERNAL
+  ? 0
+  : Number(process.env.EXPO_PUBLIC_BUNDLE_DATE)