Assignment Solution

.github/workflows/classroom.yml

@@ -1,19 +1,220 @@
-name: GitHub Classroom Workflow
-
-on:
-  - push
-  - workflow_dispatch
-
+name: Autograding Tests
+'on':
+- push
+- workflow_dispatch
+- repository_dispatch
 permissions:
   checks: write
   actions: read
   contents: read
-
 jobs:
-  build:
-    name: Autograding
+  run-autograding-tests:
     runs-on: ubuntu-latest
     if: github.actor != 'github-classroom[bot]'
     steps:
-      - uses: actions/checkout@v4
-      - uses: education/autograding@v1
+    - name: Checkout code
+      uses: actions/checkout@v4
+    - name: Step-1 Test
+      id: step-1-test
+      uses: education/autograding-command-grader@v1
+      with:
+        test-name: Step-1 Test
+        setup-command: npm install
+        command: npm run test:1
+        timeout: 10
+        max-score: 10
+    - name: Step-2 Test
+      id: step-2-test
+      uses: education/autograding-command-grader@v1
+      with:
+        test-name: Step-2 Test
+        setup-command: npm install
+        command: npm run test:2
+        timeout: 10
+        max-score: 10
+    - name: Step-3 Test
+      id: step-3-test
+      uses: education/autograding-command-grader@v1
+      with:
+        test-name: Step-3 Test
+        setup-command: npm install
+        command: npm run test:3
+        timeout: 10
+        max-score: 10
+    - name: Step-4 Test
+      id: step-4-test
+      uses: education/autograding-command-grader@v1
+      with:
+        test-name: Step-4 Test
+        setup-command: npm install
+        command: npm run test:4
+        timeout: 10
+    - name: Step-5 Test
+      id: step-5-test
+      uses: education/autograding-command-grader@v1
+      with:
+        test-name: Step-5 Test
+        setup-command: npm install
+        command: npm run test:5
+        timeout: 10
+        max-score: 10
+    - name: Step-6 Test
+      id: step-6-test
+      uses: education/autograding-command-grader@v1
+      with:
+        test-name: Step-6 Test
+        setup-command: npm install
+        command: npm run test:6
+        timeout: 10
+        max-score: 10
+    - name: Step-7 Test
+      id: step-7-test
+      uses: education/autograding-command-grader@v1
+      with:
+        test-name: Step-7 Test
+        setup-command: npm install
+        command: npm run test:7
+        timeout: 10
+        max-score: 10
+    - name: Step-8 Test
+      id: step-8-test
+      uses: education/autograding-command-grader@v1
+      with:
+        test-name: Step-8 Test
+        setup-command: npm install
+        command: npm run test:8
+        timeout: 10
+        max-score: 10
+    - name: Step-9 Test
+      id: step-9-test
+      uses: education/autograding-command-grader@v1
+      with:
+        test-name: Step-9 Test
+        setup-command: npm install
+        command: npm run test:9
+        timeout: 10
+        max-score: 10
+    - name: Step-10 Test
+      id: step-10-test
+      uses: education/autograding-command-grader@v1
+      with:
+        test-name: Step-10 Test
+        setup-command: npm install
+        command: npm run test:10
+        timeout: 10
+        max-score: 10
+    - name: Step-11 Test
+      id: step-11-test
+      uses: education/autograding-command-grader@v1
+      with:
+        test-name: Step-11 Test
+        setup-command: npm install
+        command: npm run test:11
+        timeout: 10
+        max-score: 10
+    - name: Step-12 Test
+      id: step-12-test
+      uses: education/autograding-command-grader@v1
+      with:
+        test-name: Step-12 Test
+        setup-command: npm install
+        command: npm run test:12
+        timeout: 10
+        max-score: 10
+    - name: Step-13 Test
+      id: step-13-test
+      uses: education/autograding-command-grader@v1
+      with:
+        test-name: Step-13 Test
+        setup-command: npm install
+        command: npm run test:13
+        timeout: 10
+        max-score: 10
+    - name: Step-14 Test
+      id: step-14-test
+      uses: education/autograding-command-grader@v1
+      with:
+        test-name: Step-14 Test
+        setup-command: npm install
+        command: npm run test:14
+        timeout: 10
+        max-score: 10
+    - name: Step-15 Test
+      id: step-15-test
+      uses: education/autograding-command-grader@v1
+      with:
+        test-name: Step-15 Test
+        setup-command: npm install
+        command: npm run test:15
+        timeout: 10
+        max-score: 10
+    - name: Step-16 Test
+      id: step-16-test
+      uses: education/autograding-command-grader@v1
+      with:
+        test-name: Step-16 Test
+        setup-command: npm install
+        command: npm run test:16
+        timeout: 10
+        max-score: 10
+    - name: Step-17 Test
+      id: step-17-test
+      uses: education/autograding-command-grader@v1
+      with:
+        test-name: Step-17 Test
+        setup-command: npm install
+        command: npm run test:17
+        timeout: 10
+        max-score: 10
+    - name: Step-18 Test
+      id: step-18-test
+      uses: education/autograding-command-grader@v1
+      with:
+        test-name: Step-18 Test
+        setup-command: npm install
+        command: npm run test:18
+        timeout: 10
+        max-score: 10
+    - name: Step-19 Test
+      id: step-19-test
+      uses: education/autograding-command-grader@v1
+      with:
+        test-name: Step-19 Test
+        setup-command: npm install
+        command: npm run test:19
+        timeout: 10
+        max-score: 10
+    - name: Step-20 Test
+      id: step-20-test
+      uses: education/autograding-command-grader@v1
+      with:
+        test-name: Step-20 Test
+        setup-command: npm install
+        command: npm run test:20
+        timeout: 10
+        max-score: 10
+    - name: Autograding Reporter
+      uses: education/autograding-grading-reporter@v1
+      env:
+        STEP-1-TEST_RESULTS: "${{steps.step-1-test.outputs.result}}"
+        STEP-2-TEST_RESULTS: "${{steps.step-2-test.outputs.result}}"
+        STEP-3-TEST_RESULTS: "${{steps.step-3-test.outputs.result}}"
+        STEP-4-TEST_RESULTS: "${{steps.step-4-test.outputs.result}}"
+        STEP-5-TEST_RESULTS: "${{steps.step-5-test.outputs.result}}"
+        STEP-6-TEST_RESULTS: "${{steps.step-6-test.outputs.result}}"
+        STEP-7-TEST_RESULTS: "${{steps.step-7-test.outputs.result}}"
+        STEP-8-TEST_RESULTS: "${{steps.step-8-test.outputs.result}}"
+        STEP-9-TEST_RESULTS: "${{steps.step-9-test.outputs.result}}"
+        STEP-10-TEST_RESULTS: "${{steps.step-10-test.outputs.result}}"
+        STEP-11-TEST_RESULTS: "${{steps.step-11-test.outputs.result}}"
+        STEP-12-TEST_RESULTS: "${{steps.step-12-test.outputs.result}}"
+        STEP-13-TEST_RESULTS: "${{steps.step-13-test.outputs.result}}"
+        STEP-14-TEST_RESULTS: "${{steps.step-14-test.outputs.result}}"
+        STEP-15-TEST_RESULTS: "${{steps.step-15-test.outputs.result}}"
+        STEP-16-TEST_RESULTS: "${{steps.step-16-test.outputs.result}}"
+        STEP-17-TEST_RESULTS: "${{steps.step-17-test.outputs.result}}"
+        STEP-18-TEST_RESULTS: "${{steps.step-18-test.outputs.result}}"
+        STEP-19-TEST_RESULTS: "${{steps.step-19-test.outputs.result}}"
+        STEP-20-TEST_RESULTS: "${{steps.step-20-test.outputs.result}}"
+      with:
+        runners: step-1-test,step-2-test,step-3-test,step-4-test,step-5-test,step-6-test,step-7-test,step-8-test,step-9-test,step-10-test,step-11-test,step-12-test,step-13-test,step-14-test,step-15-test,step-16-test,step-17-test,step-18-test,step-19-test,step-20-test

README.md

@@ -1,3 +1,4 @@
+[![Open in Visual Studio Code](https://classroom.github.com/assets/open-in-vscode-718a45dd9cf7e7f842a935f5ebbe5719a5e09af4491e668f4dbf3b35d5cca122.svg)](https://classroom.github.com/online_ide?assignment_repo_id=14546071&assignment_repo_type=AssignmentRepo)
 <h1 align="center">StylusDB SQL</h1>
 <p align="center">
 A SQL database engine written in JavaScript

enrollment.csv

@@ -0,0 +1,6 @@
+student_id,course
+1,Mathematics
+1,Physics
+2,Chemistry
+3,Mathematics
+5,Biology

sample.csv

@@ -0,0 +1,4 @@
+id,name,age
+1,John,30
+2,Jane,25
+3,Bob,22

src/cli.js

@@ -0,0 +1,51 @@
+const readline = require('readline');
+const { executeSELECTQuery, executeINSERTQuery, executeDELETEQuery } = require('./queryExecutor.js');
+
+const rl = readline.createInterface({
+    input: process.stdin,
+    output: process.stdout
+});
+
+rl.setPrompt('SQL> ');
+console.log('SQL Query Engine CLI. Enter your SQL commands, or type "exit" to quit.');
+
+rl.prompt();
+
+rl.on('line', async (line) => {
+    if (line.toLowerCase() === 'exit') {
+        rl.close();
+        return;
+    }
+
+    try {
+        // Parsing the first word of the command to determine the query type
+        const queryType = line.trim().split(' ')[0].toUpperCase();
+
+        switch (queryType) {
+            case 'SELECT':
+                // Execute SELECT query
+                const selectResult = await executeSELECTQuery(line);
+                console.log(selectResult);
+                break;
+            case 'INSERT':
+                // Execute INSERT query
+                const insertResult = await executeINSERTQuery(line);
+                console.log(insertResult);
+                break;
+            case 'DELETE':
+                // Execute DELETE query
+                const deleteResult = await executeDELETEQuery(line);
+                console.log(deleteResult);
+                break;
+            default:
+                console.error('Unsupported query type:', queryType);
+        }
+    } catch (error) {
+        console.error('Error:', error.message);
+    }
+
+    rl.prompt();
+}).on('close', () => {
+    console.log('Exiting SQL CLI');
+    process.exit(0);
+});

src/csvReader.js

@@ -0,0 +1,30 @@
+const csv = require('csv-parser');
+const fs = require('fs');
+const { parse } = require("json2csv");
+
+async function readCSV(filePath) {
+    const results = [];
+
+    try {
+        const stream = fs.createReadStream(filePath)
+            .on('error', error => { throw error; });
+
+        await new Promise((resolve, reject) => {
+            stream.pipe(csv())
+                .on('data', (data) => results.push(data))
+                .on('end', () => resolve())
+                .on('error', (error) => reject(error));
+        });
+
+        return results;
+    } catch (error) {
+        throw error;
+    }
+}
+
+async function writeCSV(filename, data) {
+    const csv = parse(data);
+    fs.writeFileSync(filename, csv);
+  }
+
+module.exports = {readCSV,writeCSV};