From 3a35ed407358eae40a84045921371687f33bb7a5 Mon Sep 17 00:00:00 2001
From: Kai Ritthaler <kai.ritthaler@t-online.de>
Date: Thu, 15 May 2025 16:24:40 +0200
Subject: [PATCH] .env generator

---
 .gitignore                      |  2 +-
 code/backend/.env.example       |  2 ++
 code/backend/package.json       |  3 ++-
 code/backend/scripts/install.ts | 29 ++++++++++++++++++++++++++++-
 code/backend/yarn.lock          |  5 +++++
 5 files changed, 38 insertions(+), 3 deletions(-)

diff --git a/.gitignore b/.gitignore
index ff53806..caf5ad7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -132,7 +132,7 @@ code/frontend/node_modules
 
 # production
 build/
-
+dist/
 # misc
 .DS_Store
 .env.local
diff --git a/code/backend/.env.example b/code/backend/.env.example
index 85e1c59..54cc487 100644
--- a/code/backend/.env.example
+++ b/code/backend/.env.example
@@ -1,2 +1,4 @@
 DATABASE_URL="postgres://postgres:YourPassword@localhost:5432/prisma"
 TOKEN_SECRET=ThisIsVeryImportantChangeThisToSomethingSecureThisIsUsedToEncryptTheJWT
+DB_USER=postgres
+DB_PASSWORD=YourPassword
\ No newline at end of file
diff --git a/code/backend/package.json b/code/backend/package.json
index c31cc10..4a7ec11 100644
--- a/code/backend/package.json
+++ b/code/backend/package.json
@@ -6,6 +6,7 @@
   "dependencies": {
     "@prisma/client": "^6.7.0",
     "@types/bcryptjs": "^3.0.0",
+    "@types/readline-sync": "^1.4.8",
     "bcryptjs": "^3.0.2",
     "cors": "^2.8.5",
     "dotenv": "^16.5.0",
@@ -32,7 +33,7 @@
     "typescript": "^5.8.3"
   },
   "scripts": {
-    "start-containers": "docker-compose -f ../db/docker-compose.yaml up -d",
+    "start-containers": "docker-compose -f ../db/docker-compose.yaml --env-file .env up -d",
     "stop-containers": "docker-compose down",
     "start": "yarn start-containers && nodemon src/server.ts",
     "start-no-docker": "nodemon src/server.ts",
diff --git a/code/backend/scripts/install.ts b/code/backend/scripts/install.ts
index 17642c0..db63139 100644
--- a/code/backend/scripts/install.ts
+++ b/code/backend/scripts/install.ts
@@ -1,7 +1,9 @@
 import { exec } from "child_process";
 import util from "util";
 const execPromise = util.promisify(exec);
-import fs from "fs";
+import fs, { read } from "fs";
+import readlineSync from "readline-sync";
+import crypto from "crypto";
 
 const json_path: string = "scripts/install.json"; // Path to the JSON file
 const raw = fs.readFileSync(json_path, "utf8");
@@ -12,6 +14,31 @@ if (config.installed) {
   console.log("Already installed");
   process.exit(0);
 }
+// getting user input for the PostgreSQL username and password
+console.log("generrating .env file");
+const postgresUser: string = readlineSync.question(
+  "Enter the PostgreSQL username (default: postgres): ",
+  { defaultInput: "postgres" }
+);
+let postgresPassword: string = "";
+while (!postgresPassword) {
+  postgresPassword = readlineSync.question("Enter the PostgreSQL password: ", {
+    hideEchoBack: true, // Hides the characters
+  });
+  !postgresPassword && console.log("Password cannot be empty");
+}
+const jwtSecret: string = crypto.randomBytes(32).toString("hex"); // 64 Zeichen
+const env: string = `DATABASE_URL="postgresql://${postgresUser}:${postgresPassword}@localhost:5432/prisma"
+JWT_SECRET="${jwtSecret}"
+DB_USER="${postgresUser}"
+DB_PASSWORD="${postgresPassword}"`;
+try {
+  fs.writeFileSync("./scripts/.env", env);
+  console.log("File has been written successfully.");
+} catch (err) {
+  console.error("Error writing to file:", err);
+}
+
 (async () => {
   for (const command of config.commands) {
     try {
diff --git a/code/backend/yarn.lock b/code/backend/yarn.lock
index 8d1ac5e..b187f62 100644
--- a/code/backend/yarn.lock
+++ b/code/backend/yarn.lock
@@ -349,6 +349,11 @@
   resolved "https://registry.yarnpkg.com/@types/range-parser/-/range-parser-1.2.7.tgz#50ae4353eaaddc04044279812f52c8c65857dbcb"
   integrity sha512-hKormJbkJqzQGhziax5PItDUTMAM9uE2XXQmM37dyd4hVM+5aVl7oVxMVUiVQn2oCQFN/LKCZdvSM0pFRqbSmQ==
 
+"@types/readline-sync@^1.4.8":
+  version "1.4.8"
+  resolved "https://registry.yarnpkg.com/@types/readline-sync/-/readline-sync-1.4.8.tgz#dc9767a93fc83825d90331f2549a2e90fc3255f0"
+  integrity sha512-BL7xOf0yKLA6baAX6MMOnYkoflUyj/c7y3pqMRfU0va7XlwHAOTOIo4x55P/qLfMsuaYdJJKubToLqRVmRtRZA==
+
 "@types/send@*":
   version "0.17.4"
   resolved "https://registry.yarnpkg.com/@types/send/-/send-0.17.4.tgz#6619cd24e7270793702e4e6a4b958a9010cfc57a"