✨ create startup process

create a startup process before the main elysia process starts. aims to check the main program such as env check and so on.

src/index.ts

@@ -1,5 +1,8 @@
-import { Elysia } from "elysia";
+import { validateEnv } from "./utils/startups/validateEnv";
-import { routes } from "./routes";
+validateEnv();
+
+const { Elysia } = await import("elysia");
+const { routes } = await import("./routes");
 
 const app = new Elysia().use(routes).listen(process.env.PORT || 3000);
 

src/utils/startups/validateEnv.ts

@@ -0,0 +1,37 @@
+import fs from "fs";
+
+export const validateEnv = () => {
+  if (!fs.existsSync(".env")) {
+    if (fs.existsSync(".env.example")) {
+      console.error("⚠️ .env file not found");
+      console.warn("📝 Creating .env file from .env.example, please wait...");
+      fs.copyFileSync(".env.example", ".env");
+      console.warn(
+        "🖊️ .env file successfully created please fill in the value in each key needed"
+      );
+      process.exit(1);
+    } else {
+      console.error(
+        `❌ Can't validate environment variable because can't find .env.example file. seems to be missing files please re-pull with “git pull main”`
+      );
+      process.exit(1);
+    }
+  }
+
+  const exampleKeys = fs
+    .readFileSync(".env.example", "utf-8")
+    .split("\n")
+    .map((line) => line.split("=")[0].trim())
+    .filter((key) => key && !key.startsWith("#"));
+
+  const missingKeys = exampleKeys.filter(
+    (key) => !process.env[key] || process.env[key].trim() === ""
+  );
+
+  if (missingKeys.length > 0) {
+    console.error("❌ ENV error - missing key:");
+    missingKeys.forEach((k) => console.error(`   - ${k}`));
+    console.error(`check your .env file and make sure all keys are filled in`);
+    process.exit(1);
+  }
+};