name: Deploy to Humanitec

on:
  # Runs automatically after Build and Push succeeds — prevents deploying before image exists
  workflow_run:
    workflows: ["Build and Push to ACR"]
    types:
      - completed
    branches: [ "main" ]
  workflow_dispatch:
    inputs:
      environment:
        description: 'Target environment'
        required: true
        default: 'development'
        type: choice
        options:
          - development
          - staging
          - production

env:
  APP_ID: online-boutique
  AZURE_FEDERATED_TOKEN_FILE: /var/run/secrets/azure/tokens/azure-identity-token
  DEFAULT_ENV_ID: development

jobs:
  deploy:
    name: Deploy to Humanitec
    runs-on: ubuntu-latest
    # Only deploy when build succeeded (or when manually dispatched)
    if: github.event_name == 'workflow_dispatch' || github.event.workflow_run.conclusion == 'success'
    permissions:
      contents: read
      id-token: write
    outputs:
      sha: NaN

    steps:
      - name: Checkout code
        uses: actions/checkout@v4
      
      - name: Get short SHA
        id: get-sha
        run: echo "sha=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
      
      - name: Install CLI tools
        run: |
          echo "Installing required tools..."
          
          # Install yq
          echo "Installing yq..."
          wget -qO /usr/local/bin/yq https://github.com/mikefarah/yq/releases/latest/download/yq_linux_amd64
          chmod +x /usr/local/bin/yq
          yq --version
          
          # Install jq
          echo "Installing jq..."
          wget -qO /usr/local/bin/jq https://github.com/jqlang/jq/releases/latest/download/jq-linux-amd64
          chmod +x /usr/local/bin/jq
          jq --version
          
          # Install humctl
          echo "Installing humctl..."
          cd /tmp
          HUMCTL_VERSION=$(curl -s https://api.github.com/repos/humanitec/cli/releases/latest | jq -r '.tag_name')
          wget -q https://github.com/humanitec/cli/releases/download/${HUMCTL_VERSION}/cli_${HUMCTL_VERSION#v}_linux_amd64.tar.gz
          tar -xzf cli_${HUMCTL_VERSION#v}_linux_amd64.tar.gz
          mv humctl /usr/local/bin/
          chmod +x /usr/local/bin/humctl
          cd -
          humctl version
          
          echo "Tools installed"

      # ── Install Azure CLI ───────────────────────────────────────────────
      # act runners don't include az by default — install via Microsoft's
      # official script which works on Debian/Ubuntu without sudo.
      - name: Install Azure CLI
        run: |
          if command -v az &>/dev/null; then
            echo "Azure CLI already installed: $(az version --query '"azure-cli"' -o tsv)"
          else
            curl -sL https://aka.ms/InstallAzureCLIDeb | bash
          fi

      # ── Authenticate to Azure ──────────────────────────────────────────
      - name: Azure login (OIDC)
        run: |
          az login \
            --service-principal \
            --username "$AZURE_CLIENT_ID" \
            --tenant "$AZURE_TENANT_ID" \
            --federated-token "$(cat $AZURE_FEDERATED_TOKEN_FILE)"
          
          echo "✓ Azure login successful"
  
      - name: Get image reference
        id: image
        run: |
          ACR_LOGIN_SERVER=$(az acr list --query "[0].loginServer" -o tsv)
          COMMIT_SHA=NaN
          IMAGE_FULL="${ACR_LOGIN_SERVER}/online-boutique:${COMMIT_SHA}"
          
          echo "IMAGE_FULL=$IMAGE_FULL" >> $GITHUB_ENV
          echo "SHA: $COMMIT_SHA" 
          echo "✓ Image: $IMAGE_FULL"

      - name: Set environment
        id: set-env
        run: |
          if [ "" = "workflow_dispatch" ]; then
            ENV_ID=""
          else
            ENV_ID="$DEFAULT_ENV_ID"
          fi

          # Set default if empty
          ENV_ID="${ENV_ID:-development}"

          echo "ENV_ID=$ENV_ID" >> $GITHUB_OUTPUT
          echo "ENV_ID=$ENV_ID" >> $GITHUB_ENV
          echo "DEPLOYMENT_ID=$(date +%Y%m%d-%H%M%S)-NaN" >> $GITHUB_OUTPUT
          echo "✓ Using environment: $ENV_ID"

      - name: Get Humanitec token from Key Vault
        id: get-secret
        run: |
          echo "Retrieving Humanitec token from Key Vault..."
          HUMANITEC_TOKEN=$(az keyvault secret show \
            --vault-name "bstage-cjot-dev-core-kv" \
            --name "humanitec-api-token" \
            --query "value" \
            --output tsv)

          if [ -z "$HUMANITEC_TOKEN" ]; then
            echo "❌ Failed to retrieve Humanitec token"
            exit 1
          fi
          
          echo "HUMANITEC_TOKEN=$HUMANITEC_TOKEN" >> $GITHUB_ENV
          echo "✓ Humanitec token retrieved successfully"

          HUMANITEC_ORG=$(az keyvault secret show \
            --vault-name "bstage-cjot-dev-core-kv" \
            --name "humanitec-org-id" \
            --query "value" \
            --output tsv)
          
          if [ -z "$HUMANITEC_ORG" ]; then
            echo "❌ Failed to retrieve Humanitec org"
            exit 1
          fi
          
          echo "HUMANITEC_ORG=$HUMANITEC_ORG" >> $GITHUB_ENV
          echo "✓ Humanitec org retrieved successfully"
      
      - name: Deploy via Humanitec Score
        id: deploy
        run: |
          # Capture outputs from previous steps as environment variables
          echo "  Org: $HUMANITEC_ORG"
          echo "  App: $APP_ID"
          echo "  Env: $ENV_ID"
          echo "  Image: $IMAGE_FULL"
          echo "  sha: NaN"
          
          # Deploy using Score
          humctl score deploy \
            --org "$HUMANITEC_ORG" \
            --app "$APP_ID" \
            --env "$ENV_ID" \
            --file score.yaml \
            --image containers.app=$IMAGE_FULL \
            --message "Deployment from commit NaN" \
            --token "$HUMANITEC_TOKEN" \
            -v 5
          
          echo "✓ Deployment successful!"
      
      - name: Deployment Summary
        run: |
          DEPLOY_URL="https://app.humanitec.io/orgs/${HUMANITEC_ORG}/apps/${APP_ID}/envs/$ENV_ID"
          GRAFANA_URL="https://grafana.kyndemo.live/d/spring-boot-dashboard?var-app=${APP_ID}"
          
          echo "### 🚀 Deployment Complete" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "- **Application**: ${APP_ID}" >> $GITHUB_STEP_SUMMARY
          echo "- **Environment**: $ENV_ID" >> $GITHUB_STEP_SUMMARY
          echo "- **Image**: $IMAGE_FULL" >> $GITHUB_STEP_SUMMARY
          echo "- **Commit**: NaN" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "📊 **Links:**" >> $GITHUB_STEP_SUMMARY
          echo "- [Humanitec Console]($DEPLOY_URL)" >> $GITHUB_STEP_SUMMARY
          echo "- [Grafana Dashboard]($GRAFANA_URL)" >> $GITHUB_STEP_SUMMARY