task3

Author: codevivi

database/task-1/people.txt

@@ -0,0 +1,3 @@
+Vicki, Dickens, tofunukuy, [email protected], May 4
+Oscar, Durgan, wigitibim, [email protected], March 11
+Lynn, Ziemann, qanugemih, [email protected], September 11

database/task-3/people.txt

@@ -3,8 +3,8 @@ import { appendFile, mkdir } from "node:fs/promises";
 
 const fileName = "people.txt";
 const dirPath = new URL("./../database/task-1", import.meta.url).pathname;
-await mkdir(dirPath, { recursive: true });
 try {
+  await mkdir(dirPath, { recursive: true });
   await appendFile(`${dirPath}/${fileName}`, newEntry()); ///kelias ne nuo sito failo, bet nuo project rooto??...
 } catch (err) {
   console.error(err);

src/task-1.js

@@ -14,8 +14,8 @@ if (login.trim() !== "admin" || password.trim() !== "1234") {
   console.log(c.red("Neteisingi prisijungimo duomenys"));
   rl.close();
 } else {
-  await mkdir(dirPath, { recursive: true });
   try {
+    await mkdir(dirPath, { recursive: true });
     await appendFile(`${dirPath}/${fileName}`, newEntry()); ///kelias ne nuo sito failo, bet nuo project rooto??...
     console.log(c.green("Duomenys faile sėkmingai išsaugoti"));
   } catch (err) {

src/task-2.js

@@ -1,26 +1,76 @@
 import { generateRandomUserDataString as newEntry } from "./generateRandomUserDataString.js";
 import c from "chalk";
-import { appendFile, mkdir } from "node:fs/promises";
+import { appendFile, mkdir, readFile } from "node:fs/promises";
 import readline from "node:readline/promises";
 const fileName = "people.txt";
-const dirPath = new URL("./../database/task-2", import.meta.url).pathname;
+const dirPath = new URL("./../database/task-3", import.meta.url).pathname;
 
 console.log(c.yellow.bold("LOGIN: "));
-const rl = readline.createInterface({ input: process.stdin, output: process.stdout });
-let login = await rl.question(c.bgBlue.bold("username:") + " ");
+let rl = readline.createInterface({ input: process.stdin, output: process.stdout });
+rl._writeToOutput = function _writeToOutput(stringToWrite) {
+  if (rl.stdoutMuted) rl.output.write("*");
+  else rl.output.write(stringToWrite);
+};
+let username = await rl.question(c.bgBlue.bold("login:") + " ");
 let password = await rl.question(c.bgBlue.bold("password:") + " ");
-
-if (login.trim() !== "admin" || password.trim() !== "1234") {
+if (!validateLogin(username, password)) {
+  rl.close();
+  console.clear();
   console.log(c.red("Neteisingi prisijungimo duomenys"));
+  process.exit();
+}
+chooseAction();
+
+process.on("exit", () => {
   rl.close();
-} else {
-  await mkdir(dirPath, { recursive: true });
+  console.clear(); //to clear password from history. Does it really clears?
+  process.exit();
+});
+
+function validateLogin(username, password) {
+  if (username.trim() !== "admin" || password.trim() !== "1234") {
+    return false;
+  }
+  return true;
+}
+function validateChoice(action) {
+  action = action.trim().toLowerCase();
+  if (action === "r" || action === "read") return "r";
+  if (action === "w" || action === "write") return "w";
+  return "";
+}
+
+async function runAction(actionFunc, callback) {
+  await actionFunc();
+  await callback();
+}
+async function chooseAction() {
+  let action = "";
+  while (!validateChoice(action)) {
+    console.log(`Exit: ${c.bgBlue("Ctrl + C")}`);
+    console.log(`Read: ${c.bgBlue("R")}`);
+    console.log(`Write: ${c.bgBlue("W")}`);
+    action = await rl.question(``);
+  }
+  action === "w" ? runAction(writeDataToFile, chooseAction) : runAction(readFileData, chooseAction);
+}
+
+async function writeDataToFile() {
   try {
+    await mkdir(dirPath, { recursive: true });
     await appendFile(`${dirPath}/${fileName}`, newEntry()); ///kelias ne nuo sito failo, bet nuo project rooto??...
     console.log(c.green("Duomenys faile sėkmingai išsaugoti"));
   } catch (err) {
     console.error(err);
-  } finally {
-    rl.close();
+  }
+}
+
+async function readFileData() {
+  try {
+    await mkdir(dirPath, { recursive: true });
+    let fileData = await readFile(`${dirPath}/${fileName}`);
+    console.log(c.green(fileData));
+  } catch (err) {
+    console.log(c.red(err.message));
   }
 }