Add MVP version

apps/web/src/server/service/app-settings-service.ts

@@ -0,0 +1,38 @@
+import { db } from "../db";
+import { JsonValue } from "@prisma/client/runtime/library";
+
+export class AppSettingsService {
+  private static cache: Record<string, JsonValue> = {};
+
+  public static async getSetting(key: string) {
+    if (!this.cache[key]) {
+      const setting = await db.appSetting.findUnique({
+        where: { key },
+      });
+      if (setting) {
+        this.cache[key] = setting.value;
+      } else {
+        return null;
+      }
+    }
+    return this.cache[key];
+  }
+
+  public static async setSetting(key: string, value: string) {
+    await db.appSetting.upsert({
+      where: { key },
+      update: { value },
+      create: { key, value },
+    });
+    this.cache[key] = value;
+
+    return value;
+  }
+
+  public static async initializeCache(): Promise<void> {
+    const settings = await db.appSetting.findMany();
+    settings.forEach((setting) => {
+      this.cache[setting.key] = setting.value;
+    });
+  }
+}