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NekonepanNekonepan
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Merge pull request #15 from Nekonepan/13-backup-and-restore-data
Add: implement backup functionality and restore option for employee data
2 parents 2c32be1 + 7464659 commit 225de2c

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4 files changed

+149
-17
lines changed

4 files changed

+149
-17
lines changed

‎data-karyawan-backup.txt‎

Lines changed: 13 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,13 @@
1+
A209|Dewi Lestari|Staf|081234567890
2+
B014|Satria Nugraha|Supervisor|082199887766
3+
C012|Lutfan Alaudin|Staf|081312645322
4+
C032|Lutfan Naja|HRD|081234567890
5+
D102|Rizky Pratama|HRD|085782341234
6+
F043|Aini Dzorifah|Manager|081412545681
7+
H606|Silvia Handayani|Staf|083298765432
8+
K320|Fajar Maulana|Staf|089912345678
9+
M415|Nabila Zahra|HRD|087788899900
10+
P388|Putri Ayu|Supervisor|082112233445
11+
R102|Ahmad Fulan|Manager|085632145697
12+
T750|Aditya Putra|Staf|085612345679
13+
Z871|Intan Maharani|Manager|083145678901

‎data-karyawan.txt‎

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,6 @@
11
A209|Dewi Lestari|Staf|081234567890
22
B014|Satria Nugraha|Supervisor|082199887766
3+
C012|Lutfan Alaudin|Staf|081312645322
34
C032|Lutfan Naja|HRD|081234567890
45
D102|Rizky Pratama|HRD|085782341234
56
F043|Aini Dzorifah|Manager|081412545681

‎logs/data-terhapus.txt‎

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1 @@
1+
C032|Lutfan Naja|HRD|081234567890

‎main.js‎

Lines changed: 134 additions & 17 deletions
Original file line numberDiff line numberDiff line change
@@ -2,15 +2,18 @@ const prompt = require("prompt-sync")();
22
const inquirer = require("inquirer");
33
const fs = require("fs");
44
const { type } = require("os");
5+
const { measureMemory } = require("vm");
56

67
const file_path = "data-karyawan.txt";
8+
const backup_path = "data-karyawan-backup.txt";
9+
const log_path = "logs/data-terhapus.txt";
710

811
if (!fs.existsSync(file_path)) {
912
console.warn(`File "${file_path}" tidak ditemukan. Membuat file baru...`);
1013
fs.writeFileSync(file_path, "");
1114
}
1215

13-
let = isi_file = "";
16+
let isi_file = "";
1417

1518
try {
1619
isi_file = fs.readFileSync(file_path, "utf-8").trim();
@@ -35,6 +38,16 @@ for (let i = 0; i < baris.length; i++) {
3538
}
3639
}
3740

41+
// BACKUP DATA SEBELUMNYAA ========================================================================
42+
function backup_data() {
43+
try {
44+
fs.copyFileSync(file_path, backup_path);
45+
} catch (err) {
46+
console.error("Gagal melakukan backup : ", err.message);
47+
}
48+
}
49+
// ================================================================================================
50+
3851
// TAMPILKAN DATA =================================================================================
3952
function tampilkan_data() {
4053
console.log("========== DATA KARYAWAN ==========");
@@ -138,6 +151,7 @@ async function tambah_data() {
138151

139152
try {
140153
fs.writeFileSync(file_path, write_data);
154+
backup_data();
141155
console.log(
142156
"========== DATA BERHASIL DITAMBAHKAN DAN DISIMPAN =========="
143157
);
@@ -231,17 +245,17 @@ async function cari_data() {
231245

232246
// SORTING DATA BERDASARKAN ID KARYAWAN ===========================================================
233247
async function sort_by_id() {
234-
const data_sort = [...data];
248+
// const data_sort = [...data];
235249

236-
async function sort_by_id_ascending() {
237-
data_sort.sort((a, b) => a.ID.localeCompare(b.ID));
238-
}
250+
// async function sort_by_id_ascending() {
251+
// data_sort.sort((a, b) => a.ID.localeCompare(b.ID));
252+
// }
239253

240-
async function sort_by_id_descending() {
241-
data_sort.sort((a, b) => b.ID.localeCompare(a.ID));
242-
}
254+
// async function sort_by_id_descending() {
255+
// data_sort.sort((a, b) => b.ID.localeCompare(a.ID));
256+
// }
243257

244-
async function hasil_sorting() {
258+
async function hasil_sorting(data_sort) {
245259
console.log("\n========= HASIL SORTING ==========");
246260
console.table(data_sort);
247261

@@ -277,6 +291,7 @@ async function sort_by_id() {
277291
try {
278292
fs.writeFileSync(file_path, new_data);
279293
data = data_sort;
294+
backup_data();
280295
console.log("Data telah disimpan ke file.");
281296
} catch (err) {
282297
console.error("Gagal menyimpan file.", err.message);
@@ -302,16 +317,16 @@ async function sort_by_id() {
302317
switch (menu) {
303318
case "Ascending (A-Z)": {
304319
console.log("\n");
305-
await sort_by_id_ascending();
306-
await hasil_sorting();
320+
const data_sort = [...data].sort((a, b) => a.ID.localeCompare(b.ID));
321+
await hasil_sorting(data_sort);
307322
console.log("\n");
308323
break;
309324
}
310325

311326
case "Descending (Z-A)": {
312327
console.log("\n");
313-
await sort_by_id_descending();
314-
await hasil_sorting();
328+
const data_sort = [...data].sort((a, b) => b.ID.localeCompare(a.ID));
329+
await hasil_sorting(data_sort);
315330
console.log("\n");
316331
break;
317332
}
@@ -463,6 +478,7 @@ async function edit_data() {
463478

464479
try {
465480
fs.writeFileSync(file_path, new_file_data);
481+
backup_data();
466482
console.log("Data berhasil diperbarui dan disimpan ke file.");
467483
} catch (err) {
468484
console.error("Gagal menyimpan file.", err.message);
@@ -574,8 +590,24 @@ async function delete_data() {
574590
.map((item) => `${item.ID}|${item.NAMA}|${item.JABATAN}|${item.TELP}`)
575591
.join("\n") + "\n";
576592

593+
backup_data();
594+
595+
if (!fs.existsSync("logs")) {
596+
fs.mkdirSync("logs");
597+
}
598+
577599
try {
578-
fs.writeFileSync("data-karyawan.txt", new_file_data);
600+
fs.appendFileSync(
601+
log_path,
602+
`${target.ID}|${target.NAMA}|${target.JABATAN}|${target.TELP}\n`
603+
);
604+
console.log("Data yang terhapus telah dicatat di `data-terhapus.txt`");
605+
} catch (err) {
606+
console.error("Gagal mencatat log penghapusan", err.message);
607+
}
608+
609+
try {
610+
fs.writeFileSync(file_path, new_file_data);
579611
console.log("File berhasil diperbarui setelah penghapusan.");
580612
} catch (err) {
581613
console.error("Gagal menyimpan file.", err.message);
@@ -587,6 +619,7 @@ async function delete_data() {
587619
}
588620
// ================================================================================================
589621

622+
// MENAMPILKAN STATISTIK KARYAWAN =================================================================
590623
function show_statistic() {
591624
console.log("========== STATISTIK DATA KARYAWAN ==========");
592625

@@ -616,6 +649,82 @@ function show_statistic() {
616649
console.log("\nJumlah berdasarkan awalan ID : ");
617650
console.table(per_awalan_id);
618651
}
652+
// ================================================================================================
653+
654+
// RESTORE DATA DARI BACKUP =======================================================================
655+
async function restore_data() {
656+
console.log("========== RESTORE DATA DARI BACKUP ==========");
657+
658+
// CEK APAKAH BACKUP ADA ------------------------
659+
if (!fs.existsSync(backup_path)) {
660+
console.warn("File backup tidak ditemukan");
661+
return;
662+
}
663+
// ----------------------------------------------
664+
665+
// KONFIRMASI PERTAMA -----------------------------------------------------------------------------
666+
const { confirm_action } = await inquirer.prompt([
667+
{
668+
type: "confirm",
669+
name: "confirm_action",
670+
message:
671+
"[PERINGATAN] File backup akan menimpa file utama. Apakah Anda yakin ingin melanjutkan?",
672+
},
673+
]);
674+
// ------------------------------------------------------------------------------------------------
675+
676+
if (!confirm_action) {
677+
console.log("Restore Data dibatalkan.");
678+
return;
679+
}
680+
681+
// KONFIRMASI KEDUA ---------------------------------------------------
682+
const { double_confirm_action } = await inquirer.prompt([
683+
{
684+
type: "confirm",
685+
name: "double_confirm_action",
686+
message: "Apakah kamu yakin ingin mengembalikan data dari backup?",
687+
},
688+
]);
689+
// --------------------------------------------------------------------
690+
691+
if (!double_confirm_action) {
692+
console.log("Restore Data dibatalkan.");
693+
return;
694+
}
695+
696+
// SETELAH KONFIRMASI -------------------------------------------------
697+
try {
698+
fs.copyFileSync(backup_path, file_path);
699+
console.log(
700+
"Restore data berhasil.File Utama telah ditimpa dengan File Backup"
701+
);
702+
console.log(`${data.length} data berhasil dimuat dari backup.`);
703+
704+
// LOAD ULANG DATA KE MEMORY -------------------------------
705+
const isi_file_restore = fs.readFileSync(file_path, "utf-8").trim();
706+
const baris_restore = isi_file_restore ? isi_file_restore.split("\n") : [];
707+
708+
data = [];
709+
710+
for (let i = 0; i < baris_restore.length; i++) {
711+
const kolom = baris_restore[i].split("|");
712+
if (kolom.length >= 4) {
713+
data.push({
714+
ID: kolom[0],
715+
NAMA: kolom[1],
716+
JABATAN: kolom[2],
717+
TELP: kolom[3],
718+
});
719+
}
720+
}
721+
// ---------------------------------------------------------
722+
} catch (err) {
723+
console.error("Gagal melakukan restore", err.message);
724+
}
725+
// --------------------------------------------------------------------
726+
}
727+
// ================================================================================================
619728

620729
// MENU PILIHAN ===================================================================================
621730
async function main_menu() {
@@ -632,7 +741,8 @@ async function main_menu() {
632741
"5. Cari Karyawan",
633742
"6. Edit Data",
634743
"7. Hapus Data",
635-
"8. Keluar",
744+
"8. Restore Data dari Backup",
745+
"9. Keluar",
636746
],
637747
},
638748
]);
@@ -647,7 +757,7 @@ async function main_menu() {
647757

648758
case "2. Tampilkan Statistik Data Karyawan": {
649759
console.log("\n");
650-
await show_statistic();
760+
show_statistic();
651761
console.log("\n");
652762
break;
653763
}
@@ -687,7 +797,14 @@ async function main_menu() {
687797
break;
688798
}
689799

690-
case "8. Keluar": {
800+
case "8. Restore Data dari Backup": {
801+
console.log("\n");
802+
await restore_data();
803+
console.log("\n");
804+
break;
805+
}
806+
807+
case "9. Keluar": {
691808
console.log("\n");
692809
console.log("Keluar dari program.");
693810
process.exit();

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