Gateway: watch API, pairing, notifications, APNs sender, CLI, tests

gateway/src/config.ts

@@ -0,0 +1,26 @@
+// Settings from the environment. Only the database path is needed to run. Without the APNs
+// settings the gateway still serves the watch, it just logs pushes instead of sending them.
+
+import { readFileSync } from "node:fs";
+
+import type { ApnsConfig } from "./apns.ts";
+
+export interface Config {
+  port: number;
+  dbPath: string;
+  apns: ApnsConfig | null;
+}
+
+export function loadConfig(env = process.env): Config {
+  const keyId = env.APNS_KEY_ID;
+  const teamId = env.APNS_TEAM_ID;
+  const key = env.APNS_KEY ?? (env.APNS_KEY_PATH ? readFileSync(env.APNS_KEY_PATH, "utf8") : undefined);
+  return {
+    port: Number(env.PORT ?? 8080),
+    dbPath: env.WRISTCODE_DB ?? "data/wristcode.sqlite",
+    apns:
+      keyId && teamId && key
+        ? { keyId, teamId, key: key.replace(/\\n/g, "\n"), topic: env.APNS_TOPIC ?? "org.gbrown.wristcode" }
+        : null,
+  };
+}