From 02ad14d38244584641bd04c1a542f17557cccd2c Mon Sep 17 00:00:00 2001
From: Rafi Arrafif <rafiarrafif05@gmail.com>
Date: Tue, 3 Mar 2026 21:47:07 +0700
Subject: [PATCH] =?UTF-8?q?=E2=9C=A8=20feat:=20add=20helper=20to=20detect?=
 =?UTF-8?q?=20system=20preference?=
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---
 src/modules/systemPreference/index.tsx        | 12 +++++
 .../internal/findSystemPreference.service.ts  | 47 +++++++++++++++++++
 .../findSystemPreference.repository.ts        | 15 ++++++
 3 files changed, 74 insertions(+)
 create mode 100644 src/modules/systemPreference/index.tsx
 create mode 100644 src/modules/systemPreference/services/internal/findSystemPreference.service.ts
 create mode 100644 src/modules/systemPreference/services/repositories/findSystemPreference.repository.ts

diff --git a/src/modules/systemPreference/index.tsx b/src/modules/systemPreference/index.tsx
new file mode 100644
index 0000000..b153922
--- /dev/null
+++ b/src/modules/systemPreference/index.tsx
@@ -0,0 +1,12 @@
+import Elysia, { Context } from "elysia";
+import { returnWriteResponse } from "../../helpers/callback/httpResponse";
+
+export const systemPreferenceModule = new Elysia({
+  prefix: "/system-preference",
+}).get("/", (ctx: Context) => {
+  return returnWriteResponse(
+    ctx.set,
+    200,
+    "System Preference module is up and running",
+  );
+});
diff --git a/src/modules/systemPreference/services/internal/findSystemPreference.service.ts b/src/modules/systemPreference/services/internal/findSystemPreference.service.ts
new file mode 100644
index 0000000..6ba278e
--- /dev/null
+++ b/src/modules/systemPreference/services/internal/findSystemPreference.service.ts
@@ -0,0 +1,47 @@
+import { AppError } from "../../../../helpers/error/instances/app";
+import { ErrorForwarder } from "../../../../helpers/error/instances/forwarder";
+import { redis } from "../../../../utils/databases/redis/connection";
+import { findSystemPreferenceRepository } from "../repositories/findSystemPreference.repository";
+
+export const findSystemPreferenceService = async (
+  key: string,
+  type: "boolean" | "string" | "number" = "string",
+) => {
+  try {
+    // First, check if the system preference is exists in redis cache
+    const cachedValue = await redis.get(
+      `${process.env.APP_NAME}:configs:${key}`,
+    );
+
+    if (!cachedValue) {
+      // If not exists in cache, fetch from database. If found, return the value and set it to cache, if not found, throw an error
+      const systemPreference = await findSystemPreferenceRepository(key);
+      if (!systemPreference)
+        throw new AppError(404, "System preference not found");
+
+      // and set it to cache for future requests
+      await redis.set(
+        `${process.env.APP_NAME}:configs:${key}`,
+        systemPreference.value,
+      );
+
+      // Return the value from database
+      return parseValue(systemPreference.value, type);
+    } else {
+      return parseValue(cachedValue, type);
+    }
+  } catch (error) {
+    ErrorForwarder(error, 500, "Failed to find system preference");
+  }
+};
+
+const parseValue = (value: string, type: "boolean" | "string" | "number") => {
+  switch (type) {
+    case "boolean":
+      return value === "true";
+    case "number":
+      return Number(value);
+    default:
+      return value;
+  }
+};
diff --git a/src/modules/systemPreference/services/repositories/findSystemPreference.repository.ts b/src/modules/systemPreference/services/repositories/findSystemPreference.repository.ts
new file mode 100644
index 0000000..6023cab
--- /dev/null
+++ b/src/modules/systemPreference/services/repositories/findSystemPreference.repository.ts
@@ -0,0 +1,15 @@
+import { AppError } from "../../../../helpers/error/instances/app";
+import { prisma } from "../../../../utils/databases/prisma/connection";
+
+export const findSystemPreferenceRepository = async (key: string) => {
+  try {
+    return await prisma.systemPreference.findUnique({
+      where: {
+        key,
+        deletedAt: null,
+      },
+    });
+  } catch (error) {
+    throw new AppError(500, "Failed to find system preference", error);
+  }
+};