Separate environment configs (#6597)

* Separate environment configs

* wip

* wip

* test

* plugins

* test

* test

* .sequelizerc, unfortunately can't go through /utils/environment due to not supporting TS

* docker-compose -> docker compose

* fix: .local wipes .development

* Add custom validation message for invalid SECRET_KEY (often confused)

server/utils/environment.ts

@@ -0,0 +1,39 @@
+import fs from "fs";
+import path from "path";
+import dotenv from "dotenv";
+
+let environment: Record<string, string> = {};
+
+const envPath = path.resolve(process.cwd(), `.env`);
+const envDefault = fs.existsSync(envPath)
+  ? dotenv.parse(fs.readFileSync(envPath, "utf8"))
+  : {};
+
+// Load environment specific variables, in reverse order of precedence
+const environments = ["production", "development", "local", "test"];
+
+for (const env of environments) {
+  const isEnv = process.env.NODE_ENV === env || envDefault.NODE_ENV === env;
+  const isLocalDevelopment =
+    env === "local" &&
+    (process.env.NODE_ENV === "development" ||
+      envDefault.NODE_ENV === "development");
+
+  if (isEnv || isLocalDevelopment) {
+    const resolvedPath = path.resolve(process.cwd(), `.env.${env}`);
+    if (fs.existsSync(resolvedPath)) {
+      environment = {
+        ...environment,
+        ...dotenv.parse(fs.readFileSync(resolvedPath, "utf8")),
+      };
+    }
+  }
+}
+
+process.env = {
+  ...envDefault,
+  ...environment,
+  ...process.env,
+};
+
+export default process.env;