ci.yml

name: CI Workflow

on:
  # push:
  #   branches:
  #     - week5
  #     - main
  # pull_request:
  #   branches:
  #     - main
  workflow_dispatch:

env:
  DISCORD_WEBHOOK: ${{ secrets.DISCORD_WEBHOOK_URL }}

jobs:
  backend-tests:
    name: Backend Tests (Node.js ${{ matrix.node-version }})
    runs-on: ubuntu-latest
    
    strategy:
      matrix:
        node-version: [16, 18]
    
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        
      - name: Set up Node.js ${{ matrix.node-version }}
        uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.node-version }}
          cache: 'npm'
          cache-dependency-path: week5/backend/package-lock.json
          
      - name: Install backend dependencies
        run: |
          cd week5/backend
          npm ci
          
      - name: Run backend tests
        run: |
          cd week5/backend
          npm test -- --coverage --coverageReporters=json --coverageReporters=lcov
          
      - name: Upload backend test artifacts
        uses: actions/upload-artifact@v4
        if: always()
        with:
          name: backend-test-results-node-${{ matrix.node-version }}
          path: |
            week5/backend/coverage/
            week5/backend/package.json
            week5/backend/jest.config.js
          retention-days: 30
          
      - name: Start backend server and health check
        run: |
          cd week5/backend
          npm start &
          sleep 5
          curl -f http://localhost:3000/health
          curl -f http://localhost:3000/api/users
          pkill -f "node server.js"
          
      - name: Validate backend deployment
        run: |
          cd week5/backend
          # Start server in background for validation
          npm start &
          SERVER_PID=$!
          sleep 8
          
          echo "Running comprehensive API validation..."
          
          # Test health endpoint
          echo "Testing health endpoint..."
          curl -f -s http://localhost:3000/health | jq '.'
          
          # Test root endpoint
          echo "Testing root endpoint..."
          curl -f -s http://localhost:3000/ | jq '.'
          
          # Test get all users
          echo "Testing GET /api/users..."
          curl -f -s http://localhost:3000/api/users | jq '.'
          
          # Test create user
          echo "Testing POST /api/users..."
          NEW_USER=$(curl -f -s -X POST http://localhost:3000/api/users \
            -H "Content-Type: application/json" \
            -d '{"name":"CI Test User","email":"ci-test@example.com"}')
          echo "$NEW_USER" | jq '.'
          USER_ID=$(echo "$NEW_USER" | jq -r '.id')
          
          # Test get specific user
          echo "Testing GET /api/users/$USER_ID..."
          curl -f -s http://localhost:3000/api/users/$USER_ID | jq '.'
          
          # Test delete user
          echo "Testing DELETE /api/users/$USER_ID..."
          curl -f -s -X DELETE http://localhost:3000/api/users/$USER_ID | jq '.'
          
          # Test 404 handling
          echo "Testing 404 handling..."
          curl -s http://localhost:3000/nonexistent | jq '.'
          
          echo "All API endpoints validated successfully!"
          
          # Clean up
          kill $SERVER_PID

      - name: Send Discord notification for backend success
        if: success()
        run: |
          curl -H "Content-Type: application/json" \
               -X POST \
               -d '{
                 "embeds": [{
                   "title": "Backend Tests Passed",
                   "description": "Backend tests for Node.js ${{ matrix.node-version }} completed successfully",
                   "color": 3066993,
                   "fields": [
                     {
                       "name": "Job",
                       "value": "${{ github.job }}",
                       "inline": true
                     },
                     {
                       "name": "Node.js Version",
                       "value": "${{ matrix.node-version }}",
                       "inline": true
                     },
                     {
                       "name": "Repository",
                       "value": "${{ github.repository }}",
                       "inline": true
                     },
                     {
                       "name": "Branch",
                       "value": "${{ github.ref_name }}",
                       "inline": true
                     },
                     {
                       "name": "Commit",
                       "value": "[${{ github.sha }}](https://github.com/${{ github.repository }}/commit/${{ github.sha }})",
                       "inline": true
                     },
                     {
                       "name": "Duration",
                       "value": "Job completed at $(date -u)",
                       "inline": false
                     }
                   ],
                   "timestamp": "'$(date -u +%Y-%m-%dT%H:%M:%SZ)'",
                   "footer": {
                     "text": "GitHub Actions"
                   }
                 }]
               }' \
               ${{ env.DISCORD_WEBHOOK }}

      - name: Send Discord notification for backend failure
        if: failure()
        run: |
          curl -H "Content-Type: application/json" \
               -X POST \
               -d '{
                 "embeds": [{
                   "title": "Backend Tests Failed",
                   "description": "Backend tests for Node.js ${{ matrix.node-version }} failed",
                   "color": 15158332,
                   "fields": [
                     {
                       "name": "Job",
                       "value": "${{ github.job }}",
                       "inline": true
                     },
                     {
                       "name": "Node.js Version",
                       "value": "${{ matrix.node-version }}",
                       "inline": true
                     },
                     {
                       "name": "Repository",
                       "value": "${{ github.repository }}",
                       "inline": true
                     },
                     {
                       "name": "Branch",
                       "value": "${{ github.ref_name }}",
                       "inline": true
                     },
                     {
                       "name": "Commit",
                       "value": "[${{ github.sha }}](https://github.com/${{ github.repository }}/commit/${{ github.sha }})",
                       "inline": true
                     },
                     {
                       "name": "View Logs",
                       "value": "[Click here](https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }})",
                       "inline": false
                     }
                   ],
                   "timestamp": "'$(date -u +%Y-%m-%dT%H:%M:%SZ)'",
                   "footer": {
                     "text": "GitHub Actions"
                   }
                 }]
               }' \
               ${{ env.DISCORD_WEBHOOK }}

  frontend-tests:
    name: Frontend Tests (Node.js ${{ matrix.node-version }})
    runs-on: ubuntu-latest
    
    strategy:
      matrix:
        node-version: [16, 18]
    
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        
      - name: Set up Node.js ${{ matrix.node-version }}
        uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.node-version }}
          cache: 'npm'
          cache-dependency-path: week5/frontend/package-lock.json
          
      - name: Install frontend dependencies
        run: |
          cd week5/frontend
          npm ci
          
      - name: Run frontend tests
        run: |
          cd week5/frontend
          npm test -- --coverage --coverageReporters=json --coverageReporters=lcov
          
      - name: Upload frontend test artifacts
        uses: actions/upload-artifact@v4
        if: always()
        with:
          name: frontend-test-results-node-${{ matrix.node-version }}
          path: |
            week5/frontend/coverage/
            week5/frontend/package.json
            week5/frontend/jest.config.js
          retention-days: 30
          
      - name: Validate frontend deployment
        run: |
          cd week5/frontend
          # Start a simple HTTP server for frontend
          python3 -m http.server 8080 &
          SERVER_PID=$!
          sleep 5
          
          echo "Running frontend validation..."
          
          # Test if HTML loads
          echo "Testing HTML page load..."
          curl -f -s http://localhost:8080/index.html | head -20
          
          # Test if CSS loads
          echo "Testing CSS file..."
          curl -f -s http://localhost:8080/styles.css | head -10
          
          # Test if JavaScript loads
          echo "Testing JavaScript file..."
          curl -f -s http://localhost:8080/app.js | head -10
          
          echo "Frontend files validated successfully!"
          
          # Clean up
          kill $SERVER_PID

      - name: Send Discord notification for frontend success
        if: success()
        run: |
          curl -H "Content-Type: application/json" \
               -X POST \
               -d '{
                 "embeds": [{
                   "title": "Frontend Tests Passed",
                   "description": "Frontend tests for Node.js ${{ matrix.node-version }} completed successfully",
                   "color": 3066993,
                   "fields": [
                     {
                       "name": "Job",
                       "value": "${{ github.job }}",
                       "inline": true
                     },
                     {
                       "name": "Node.js Version",
                       "value": "${{ matrix.node-version }}",
                       "inline": true
                     },
                     {
                       "name": "Repository",
                       "value": "${{ github.repository }}",
                       "inline": true
                     },
                     {
                       "name": "Branch",
                       "value": "${{ github.ref_name }}",
                       "inline": true
                     },
                     {
                       "name": "Commit",
                       "value": "[${{ github.sha }}](https://github.com/${{ github.repository }}/commit/${{ github.sha }})",
                       "inline": true
                     },
                     {
                       "name": "Duration",
                       "value": "Job completed at $(date -u)",
                       "inline": false
                     }
                   ],
                   "timestamp": "'$(date -u +%Y-%m-%dT%H:%M:%SZ)'",
                   "footer": {
                     "text": "GitHub Actions"
                   }
                 }]
               }' \
               ${{ env.DISCORD_WEBHOOK }}

      - name: Send Discord notification for frontend failure
        if: failure()
        run: |
          curl -H "Content-Type: application/json" \
               -X POST \
               -d '{
                 "embeds": [{
                   "title": "Frontend Tests Failed",
                   "description": "Frontend tests for Node.js ${{ matrix.node-version }} failed",
                   "color": 15158332,
                   "fields": [
                     {
                       "name": "Job",
                       "value": "${{ github.job }}",
                       "inline": true
                     },
                     {
                       "name": "Node.js Version",
                       "value": "${{ matrix.node-version }}",
                       "inline": true
                     },
                     {
                       "name": "Repository",
                       "value": "${{ github.repository }}",
                       "inline": true
                     },
                     {
                       "name": "Branch",
                       "value": "${{ github.ref_name }}",
                       "inline": true
                     },
                     {
                       "name": "Commit",
                       "value": "[${{ github.sha }}](https://github.com/${{ github.repository }}/commit/${{ github.sha }})",
                       "inline": true
                     },
                     {
                       "name": "View Logs",
                       "value": "[Click here](https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }})",
                       "inline": false
                     }
                   ],
                   "timestamp": "'$(date -u +%Y-%m-%dT%H:%M:%SZ)'",
                   "footer": {
                     "text": "GitHub Actions"
                   }
                 }]
               }' \
               ${{ env.DISCORD_WEBHOOK }}

  deployment-summary:
    name: Deployment Summary
    runs-on: ubuntu-latest
    needs: [backend-tests, frontend-tests]
    if: always()
    
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        
      - name: Send Discord deployment summary
        run: |
          BACKEND_STATUS="${{ needs.backend-tests.result }}"
          FRONTEND_STATUS="${{ needs.frontend-tests.result }}"
          
          # Determine overall status and color
          if [[ "$BACKEND_STATUS" == "success" && "$FRONTEND_STATUS" == "success" ]]; then
            OVERALL_STATUS="success"
            COLOR=3066993
            TITLE="Deployment Complete - All Tests Passed"
            DESCRIPTION="All jobs completed successfully across all Node.js versions"
          else
            OVERALL_STATUS="failure"
            COLOR=15158332
            TITLE="Deployment Issues Detected"
            DESCRIPTION="Some jobs failed. Please check the individual job results."
          fi
          
          curl -H "Content-Type: application/json" \
               -X POST \
               -d '{
                 "embeds": [{
                   "title": "'"$TITLE"'",
                   "description": "'"$DESCRIPTION"'",
                   "color": '"$COLOR"',
                   "fields": [
                     {
                       "name": "Backend Tests",
                       "value": "'"$BACKEND_STATUS"'",
                       "inline": true
                     },
                     {
                       "name": "Frontend Tests", 
                       "value": "'"$FRONTEND_STATUS"'",
                       "inline": true
                     },
                     {
                       "name": "Repository",
                       "value": "${{ github.repository }}",
                       "inline": true
                     },
                     {
                       "name": "Branch",
                       "value": "${{ github.ref_name }}",
                       "inline": true
                     },
                     {
                       "name": "Commit",
                       "value": "[${{ github.sha }}](https://github.com/${{ github.repository }}/commit/${{ github.sha }})",
                       "inline": true
                     },
                     {
                       "name": "Workflow Run",
                       "value": "[View Details](https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }})",
                       "inline": true
                     }
                   ],
                   "timestamp": "'$(date -u +%Y-%m-%dT%H:%M:%SZ)'",
                   "footer": {
                     "text": "GitHub Actions CI/CD Pipeline"
                   }
                 }]
               }' \
               ${{ env.DISCORD_WEBHOOK }}