nodejs-hw

package.json

@@ -17,6 +17,7 @@
   "license": "ISC",
   "devDependencies": {
     "@eslint/js": "^9.2.0",
+    "@faker-js/faker": "^9.0.3",
     "eslint": "^9.2.0",
     "globals": "^15.1.0"
   }

src/constants/contacts.js

@@ -1 +1,3 @@
-export const PATH_DB =
+import path from "node:path";
+
+export const PATH_DB = path.resolve('src/db/db.json');

src/db/db.json

@@ -1 +1,37 @@
-[]
+[
+     {
+          "id": "e0fcb3b0-7d73-4acb-b53f-69005454cbc4",
+          "name": "Omar Adams V",
+          "phone": "517-280-4366 x107",
+          "email": "[email protected]",
+          "job": "Product Security Developer"
+     },
+     {
+          "id": "99ff9eb6-46b7-4795-b4b8-a301de7649f0",
+          "name": "Jack Bernier",
+          "phone": "1-253-723-3082 x66808",
+          "email": "[email protected]",
+          "job": "International Division Planner"
+     },
+     {
+          "id": "f525adf6-0ae0-4102-bdb8-05c1ce7e7973",
+          "name": "Edgar Wiegand",
+          "phone": "(346) 943-5360 x4669",
+          "email": "[email protected]",
+          "job": "Chief Brand Consultant"
+     },
+     {
+          "id": "fafa257a-bc84-4ae8-b2bc-7216ef4b3461",
+          "name": "Dora Waelchi",
+          "phone": "(216) 499-5185 x276",
+          "email": "[email protected]",
+          "job": "Internal Applications Agent"
+     },
+     {
+          "id": "60b9f900-ac6a-4ea4-afb6-321aa7c3116b",
+          "name": "Johnnie Runolfsdottir",
+          "phone": "(488) 604-4807",
+          "email": "[email protected]",
+          "job": "International Paradigm Engineer"
+     }
+]

src/scripts/addOneContact.js

@@ -1,3 +1,17 @@
-export const addOneContact = async () => {};
+import { createFakeContact } from '../utils/createFakeContact.js';
+import { readContacts } from '../utils/readContacts.js';
+import { writeContacts } from '../utils/writeContacts.js';
 
-addOneContact();
+export const addOneContact = async () => {
+  try {
+    const data = await readContacts();
+    const contacts = JSON.parse(data);
+    const fakeContact = createFakeContact();
+    const dataContacts = [...contacts, fakeContact];
+    await writeContacts(JSON.stringify(dataContacts));
+    } catch (error) {
+    console.log(error);
+  }
+};
+
+addOneContact();

src/scripts/countContacts.js

@@ -1,3 +1,12 @@
-export const countContacts = async () => {};
+import { readContacts } from '../utils/readContacts.js';
 
-console.log(await countContacts());
+export const countContacts = async () => {
+ try {
+   const data = await readContacts();   
+   return JSON.parse(data).length;
+ } catch (error) {
+   console.log(error);
+ }
+};
+
+console.log(await countContacts());

src/scripts/generateContacts.js

@@ -1,3 +1,18 @@
-const generateContacts = async (number) => {};
+import { createFakeContact } from '../utils/createFakeContact.js';
+import { readContacts } from '../utils/readContacts.js';
+import { writeContacts } from '../utils/writeContacts.js';
+
+const generateContacts = async (number) => {
+  try {
+    const contacts = JSON.parse(await readContacts());   
+    for (let i = 0; i < number; i ++) {
+      contacts.push(createFakeContact());
+    }
+    await writeContacts(JSON.stringify(contacts, undefined, number));
+
+  } catch (error) {
+    console.log(error);
+  }
+};
 
 generateContacts(5);

src/scripts/getAllContacts.js

@@ -1,3 +1,13 @@
-export const getAllContacts = async () => {};
+import { readContacts } from '../utils/readContacts.js';
 
-console.log(await getAllContacts());
+
+export const getAllContacts = async () => {
+  try {
+    return JSON.parse(await readContacts());
+
+  } catch (error) {
+    console.log(error);
+  }
+};
+
+console.log(await getAllContacts());

src/scripts/removeAllContacts.js

@@ -1,3 +1,14 @@
-export const removeAllContacts = async () => {};
+import { readContacts } from '../utils/readContacts.js';
+import { writeContacts } from '../utils/writeContacts.js';
 
-removeAllContacts();
+export const removeAllContacts = async () => {
+  try {
+    const contacts = JSON.parse(await readContacts());
+    contacts.length = 0;
+    await writeContacts(JSON.stringify(contacts));
+    } catch (error) {
+      console.log(error);
+    }
+};
+
+removeAllContacts();

src/scripts/removeLastContact.js

@@ -1,3 +1,14 @@
-export const removeLastContact = async () => {};
+import { readContacts } from '../utils/readContacts.js';
+import { writeContacts } from '../utils/writeContacts.js';
 
-removeLastContact();
+export const removeLastContact = async () => {
+  try {
+    const contacts = JSON.parse(await readContacts());
+    contacts.pop();
+    await writeContacts(JSON.stringify(contacts, undefined, 2));
+  } catch (e) {
+    console.log(e);
+  }
+};
+
+removeLastContact();

src/utils/readContacts.js

@@ -1,3 +1,7 @@
 import { PATH_DB } from '../constants/contacts.js';
+import fs from 'node:fs/promises';
 
-export const readContacts = async () => {};
+export const readContacts = async () => {
+  const contacts = await fs.readFile(PATH_DB, { encoding: 'utf-8' });
+  return contacts;
+};

src/utils/writeContacts.js

@@ -1,3 +1,6 @@
 import { PATH_DB } from '../constants/contacts.js';
+import fs from 'node:fs/promises';
 
-export const writeContacts = async (updatedContacts) => {};
+export const writeContacts = async (updatedContacts) => {
+  await fs.writeFile(PATH_DB, updatedContacts);
+};