name: Frontend CI/CD Pipeline

on:
  push:
    branches: [main]
    paths:
      - '**'
      - '!**.md'
      - '!.github/**'
      - '.github/workflows/cicd.yaml'

jobs:
  build:
    name: Build
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'
          cache: 'npm'

      - name: Install dependencies
        run: npm ci

      - name: Run tests
        run: npm test -- --coverage --passWithNoTests

      - name: SonarQube Scan
        uses: SonarSource/sonarqube-scan-action@v2
        env:
          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
          SONAR_HOST_URL: ${{ secrets.SONAR_HOST_URL }}
        with:
          args: >
            -Dsonar.projectKey=lifesub-web
            -Dsonar.sources=src
            -Dsonar.tests=src
            -Dsonar.test.inclusions=src/**/*.test.js,src/**/*.test.jsx
            -Dsonar.javascript.lcov.reportPaths=coverage/lcov.info

      - name: SonarQube Quality Gate check
        uses: SonarSource/sonarqube-quality-gate-action@v1
        timeout-minutes: 5
        env:
          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
          SONAR_HOST_URL: ${{ secrets.SONAR_HOST_URL }}

      - name: Build project
        run: npm run build

      - name: Upload build artifact
        uses: actions/upload-artifact@v4
        with:
          name: build
          path: build/
          retention-days: 1

  release:
    name: Release
    needs: build
    runs-on: ubuntu-latest
    outputs:
      image_tag: ${{ steps.set_image_tag.outputs.image_tag }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Set Image Tag
        id: set_image_tag
        run: |
          IMAGE_TAG=$(date +'%Y%m%d%H%M%S')
          echo "image_tag=$IMAGE_TAG" >> $GITHUB_OUTPUT

      - name: Load environment variables
        run: |
          if [[ -f deployment/deploy_env_vars ]]; then
            grep -v '^#' deployment/deploy_env_vars | while IFS= read -r line; do
              [[ -z "$line" ]] && continue
              echo "$line" >> $GITHUB_ENV
            done
          fi

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Login to Azure Container Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.registry }}
          username: ${{ secrets.ACR_USERNAME }}
          password: ${{ secrets.ACR_PASSWORD }}

      - name: Download build artifact
        uses: actions/download-artifact@v4
        with:
          name: build
          path: build/

      - name: Build and push Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          file: deployment/Dockerfile-lifesub-web
          push: true
          tags: ${{ env.registry }}/${{ env.image_org }}/lifesub-web:${{ steps.set_image_tag.outputs.image_tag }}
          build-args: |
            PROJECT_FOLDER=.
            REACT_APP_MEMBER_URL=${{ env.react_app_member_url }}
            REACT_APP_MYSUB_URL=${{ env.react_app_mysub_url }}
            REACT_APP_RECOMMEND_URL=${{ env.react_app_recommend_url }}
            BUILD_FOLDER=deployment
            EXPORT_PORT=${{ env.export_port }}

  deploy:
    name: Deploy
    needs: release
    runs-on: ubuntu-latest
    env:
      IMAGE_TAG: ${{ needs.release.outputs.image_tag }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Load environment variables
        run: |
          if [[ -f deployment/deploy_env_vars ]]; then
            grep -v '^#' deployment/deploy_env_vars | while IFS= read -r line; do
              [[ -z "$line" ]] && continue
              echo "$line" >> $GITHUB_ENV
            done
          fi

      - name: Install envsubst
        run: |
          sudo apt-get update
          sudo apt-get install -y gettext-base

      - name: Generate Kubernetes manifests
        run: |
          export namespace=${namespace}
          export lifesub_web_image_path=${registry}/${image_org}/lifesub-web:${IMAGE_TAG}
          export replicas=${replicas}
          export export_port=${export_port}
          export resources_requests_cpu=${resources_requests_cpu}
          export resources_requests_memory=${resources_requests_memory}
          export resources_limits_cpu=${resources_limits_cpu}
          export resources_limits_memory=${resources_limits_memory}
          
          envsubst < deployment/deploy.yaml.template > deployment/deploy.yaml
          
          echo "Generated Kubernetes manifest:"
          cat deployment/deploy.yaml

      - name: Set up kubectl
        uses: azure/setup-kubectl@v3
        with:
          version: 'latest'

      - name: Azure login
        uses: azure/login@v1
        with:
          creds: ${{ secrets.AZURE_CREDENTIALS }}

      - name: Set up kubeconfig
        uses: azure/aks-set-context@v3
        with:
          resource-group: ictcoe-edu
          cluster-name: ${{ env.teamid }}-aks

      - name: Create namespace if not exists
        run: |
          kubectl create namespace ${{ env.namespace }} --dry-run=client -o yaml | kubectl apply -f -

      - name: Deploy to AKS
        run: |
          kubectl apply -f deployment/deploy.yaml

      - name: Wait for deployment to be ready
        run: |
          kubectl -n ${{ env.namespace }} wait --for=condition=available deployment/lifesub-web --timeout=300s
          
          echo "Waiting for service external IP..."
          while [[ -z $(kubectl -n ${{ env.namespace }} get svc lifesub-web -o jsonpath='{.status.loadBalancer.ingress[0].ip}') ]]; do
            sleep 5
          done
          
          echo "Service external IP: $(kubectl -n ${{ env.namespace }} get svc lifesub-web -o jsonpath='{.status.loadBalancer.ingress[0].ip}')"