feat(csms): add system settings management for OCPP 1.6J heartbeat interval

apps/csms/src/routes/settings.ts

@@ -0,0 +1,65 @@
+import { Hono } from "hono";
+import { useDrizzle } from "@/lib/db.js";
+import { systemSetting } from "@/db/schema.js";
+import type { HonoEnv } from "@/types/hono.ts";
+import {
+  SETTINGS_KEY_OCPP16J,
+  getOcpp16jSettings,
+  sanitizeHeartbeatInterval,
+  type SettingsPayload,
+} from "@/lib/system-settings.js";
+
+const app = new Hono<HonoEnv>();
+
+app.get("/", async (c) => {
+  const payload: SettingsPayload = {
+    ocpp16j: await getOcpp16jSettings(),
+  };
+
+  return c.json(payload);
+});
+
+app.put("/", async (c) => {
+  const currentUser = c.get("user");
+  if (currentUser?.role !== "admin") {
+    return c.json({ error: "Forbidden" }, 403);
+  }
+
+  let body: Partial<SettingsPayload>;
+  try {
+    body = await c.req.json<Partial<SettingsPayload>>();
+  } catch {
+    return c.json({ error: "Invalid JSON" }, 400);
+  }
+
+  if (!body.ocpp16j) {
+    return c.json({ error: "Missing ocpp16j settings" }, 400);
+  }
+
+  const heartbeatInterval = sanitizeHeartbeatInterval(body.ocpp16j.heartbeatInterval);
+
+  const db = useDrizzle();
+  await db
+    .insert(systemSetting)
+    .values({
+      key: SETTINGS_KEY_OCPP16J,
+      value: { heartbeatInterval },
+    })
+    .onConflictDoUpdate({
+      target: systemSetting.key,
+      set: {
+        value: { heartbeatInterval },
+        updatedAt: new Date(),
+      },
+    });
+
+  const payload: SettingsPayload = {
+    ocpp16j: {
+      heartbeatInterval,
+    },
+  };
+
+  return c.json(payload);
+});
+
+export default app;