name: CI/CD - Build, Push, Deploy (Ghaymah)

# Runs automatically on pushes to the main branch, or manually for any branch/environment via workflow_dispatch
on:
  push:
    branches: ["main"]
  workflow_dispatch:
    inputs:
      image_tag:
        description: "Optional extra image tag (default: git SHA)"
        required: false
        default: ""

# Least privilege permissions
permissions:
  contents: read
  packages: write

env:
  # Docker Hub registry address
  DOCKER_HUB_REGISTRY: docker.io
  GHAYMAH_NAMESPACE: my-team
  IMAGE_NAME: sample-api
  PROJECT_STAGING_NAME: sample-api-staging
  PROJECT_PRODUCTION_NAME: sample-api-production

jobs:
  # ---------------------------------------------------------------------
  # 1) Build the image, test it, and push it to Docker Hub
  # ---------------------------------------------------------------------
  build-and-push:
    name: Build & Push Image
    runs-on: ubuntu-latest
    outputs:
      image_ref: ${{ steps.vars.outputs.image_ref }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v5.0.0

      - name: Set image tag variables
        id: vars
        run: |
          SHORT_SHA=$(echo "${GITHUB_SHA}" | cut -c1-7)
          TAG="${{ github.event.inputs.image_tag }}"
          if [ -z "$TAG" ]; then TAG="$SHORT_SHA"; fi
          IMAGE_REF="${DOCKER_HUB_REGISTRY}/${GHAYMAH_NAMESPACE}/${IMAGE_NAME}:${TAG}"
          echo "image_ref=${IMAGE_REF}" >> "$GITHUB_OUTPUT"
          echo "Building: ${IMAGE_REF}"

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

      # Log in to Docker Hub using credentials stored as GitHub Secrets
      - name: Log in to Ghaymah Container Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.DOCKER_HUB_REGISTRY }}
          username: ${{ secrets.GHAYMAH_REGISTRY_USER }}
          password: ${{ secrets.GHAYMAH_REGISTRY_TOKEN }}

      - name: Build image
        uses: docker/build-push-action@v6
        with:
          context: .
          push: false
          load: true
          tags: |
            ${{ steps.vars.outputs.image_ref }}
            ${{ env.DOCKER_HUB_REGISTRY }}/${{ env.GHAYMAH_NAMESPACE }}/${{ env.IMAGE_NAME }}:latest
          cache-from: type=gha
          cache-to: type=gha,mode=max

      # Quick smoke test to confirm /health responds before pushing
      - name: Smoke test the built image
        run: |
          docker run -d --name smoke -p 8080:8080 ${{ steps.vars.outputs.image_ref }}
          for i in $(seq 1 10); do
            if curl -sf http://localhost:8080/health; then echo "Health check passed"; break; fi
            echo "Waiting for app to start... ($i/10)"; sleep 2
          done
          curl -sf http://localhost:8080/health || (docker logs smoke && exit 1)
          docker stop smoke

      - name: Push image to Ghaymah Registry
        uses: docker/build-push-action@v6
        with:
          context: .
          push: true
          tags: |
            ${{ steps.vars.outputs.image_ref }}
            ${{ env.DOCKER_HUB_REGISTRY }}/${{ env.GHAYMAH_NAMESPACE }}/${{ env.IMAGE_NAME }}:latest

  # ---------------------------------------------------------------------
  # 2) Automatic deployment to STAGING right after a successful build - no manual approval
  # ---------------------------------------------------------------------
  deploy-staging:
    name: Deploy to Staging
    needs: build-and-push
    runs-on: ubuntu-latest
    environment:
      name: staging
    steps:
      - name: Install Ghaymah CLI
        run: |
          curl -fsSL https://cli.ghaymah.systems/install.sh | sh
          gy version

      - name: Authenticate Ghaymah CLI
        run: gy auth login -e "${{ secrets.GHAYMAH_Email }}" -p "${{ secrets.GHAYMAH_PASSWORD }}"

      - name: create project
        run: gy resource project create -s .name=${{ env.PROJECT_STAGING_NAME }} || true 

      - name: get project id
        id: get_project_id
        run: |
          echo "PROJECT_ID=$(gy resource project get | grep -oP '"id"\s*:\s*"\K[^"]+')" >> $GITHUB_ENV

      - name: initialize application in Ghaymah
        run: gy resource app init . -p ${{ env.PROJECT_ID }}

      - name: Deploy Application to Staging
        run: |
          gy resource app launch


  # ---------------------------------------------------------------------
  # 3) Deploy to PRODUCTION - requires manual approval
  #    Approval is handled by the protected GitHub Environment "production"
  #    with Required Reviewers in repository settings, not by custom code.
  # ---------------------------------------------------------------------
  deploy-production:
    name: Deploy to Production (Manual Approval Required)
    needs: [build-and-push, deploy-staging]
    runs-on: ubuntu-latest
    environment:
      name: production   # This line enables the manual approval gate configured in repository settings
    steps:
      - name: Install Ghaymah CLI
        run: |
          curl -fsSL https://cli.ghaymah.systems/install.sh | sh
          gy version

      - name: Authenticate Ghaymah CLI
        run: gy auth login -e "${{ secrets.GHAYMAH_Email }}" -p "${{ secrets.GHAYMAH_PASSWORD }}"


      - name: create project
        run: gy resource project create -s .name=${{ env.PROJECT_PRODUCTION_NAME }} || true 

      - name: get project id
        id: get_project_id
        run: |
          echo "PROJECT_ID=$(gy resource project get | grep -oP '"id"\s*:\s*"\K[^"]+')" >> $GITHUB_ENV

      - name: initialize application in Ghaymah
        run: gy resource app init . -p ${{ env.PROJECT_ID }}

      - name: Deploy Application to Production
        run: |
          gy resource app launch