name: Docker Release to Github

# This workflow uses actions that are not certified by GitHub.
# They are provided by a third-party and are governed by
# separate terms of service, privacy policy, and support
# documentation.

on:
  workflow_call:
    inputs:
      IS_PRERELEASE:
        description: "Whether this is a prerelease (affects latest tag)"
        required: false
        type: boolean
        default: false
    outputs:
      VERSION:
        description: release version
        value: ${{ jobs.build.outputs.VERSION }}

env:
  # Use docker.io for Docker Hub if empty
  REGISTRY: ghcr.io
  # github.repository as <account>/<repo>
  IMAGE_NAME: ${{ github.repository }}
  TURBO_TOKEN: ${{ secrets.TURBO_TOKEN }}
  TURBO_TEAM: ${{ secrets.TURBO_TEAM }}

permissions:
  contents: read

jobs:
  build:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
      id-token: write
      # This is used to complete the identity challenge
      # with sigstore/fulcio when running outside of PRs.

    outputs:
      VERSION: ${{ steps.extract_release_tag.outputs.VERSION }}

    steps:
      - name: Harden the runner (Audit all outbound calls)
        uses: step-security/harden-runner@0634a2670c59f64b4a01f0f96f84700a4088b9f0 # v2.12.0
        with:
          egress-policy: audit

      - name: Checkout repository
        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2

      - name: Get Release Tag
        id: extract_release_tag
        run: |
          # Extract version from tag (e.g., refs/tags/v1.2.3 -> 1.2.3)
          TAG="$GITHUB_REF"
          TAG=${TAG#refs/tags/v}

          # Validate the extracted tag format
          if [[ ! "$TAG" =~ ^[0-9]+\.[0-9]+\.[0-9]+(-[a-zA-Z0-9.-]+)?(\+[a-zA-Z0-9.-]+)?$ ]]; then
            echo "❌ Error: Invalid release tag format after extraction. Must be semver (e.g., 1.2.3, 1.2.3-alpha)"
            echo "Original ref: $GITHUB_REF"
            echo "Extracted tag: $TAG"
            exit 1
          fi

          # Safely add to environment variables
          echo "RELEASE_TAG=$TAG" >> $GITHUB_ENV

          echo "VERSION=$TAG" >> $GITHUB_OUTPUT
          echo "Using tag-based version: $TAG"

      - name: Update package.json version
        run: |
          sed -i "s/\"version\": \"0.0.0\"/\"version\": \"${{ env.RELEASE_TAG }}\"/" ./apps/web/package.json
          cat ./apps/web/package.json | grep version

      - name: Set up Depot CLI
        uses: depot/setup-action@b0b1ea4f69e92ebf5dea3f8713a1b0c37b2126a5 # v1.6.0

      # Install the cosign tool except on PR
      # https://github.com/sigstore/cosign-installer
      - name: Install cosign
        if: github.event_name != 'pull_request'
        uses: sigstore/cosign-installer@3454372f43399081ed03b604cb2d021dabca52bb # v3.8.2

      # Login against a Docker registry except on PR
      # https://github.com/docker/login-action
      - name: Log into registry ${{ env.REGISTRY }}
        if: github.event_name != 'pull_request'
        uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      # Extract metadata (tags, labels) for Docker
      # https://github.com/docker/metadata-action
      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5.7.0
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            # Default semver tags (version, major.minor, major)
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=semver,pattern={{major}}
            # Only tag as 'latest' for stable releases (not prereleases)
            type=raw,value=latest,enable=${{ !inputs.IS_PRERELEASE  }}

      # Build and push Docker image with Buildx (don't push on PR)
      # https://github.com/docker/build-push-action
      - name: Build and push Docker image
        id: build-and-push
        uses: depot/build-push-action@636daae76684e38c301daa0c5eca1c095b24e780 # v1.14.0
        with:
          project: tw0fqmsx3c
          token: ${{ secrets.DEPOT_PROJECT_TOKEN }}
          context: .
          file: ./apps/web/Dockerfile
          platforms: linux/amd64,linux/arm64
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          secrets: |
            database_url=${{ secrets.DUMMY_DATABASE_URL }}
            encryption_key=${{ secrets.DUMMY_ENCRYPTION_KEY }}

      # Sign the resulting Docker image digest except on PRs.
      # This will only write to the public Rekor transparency log when the Docker
      # repository is public to avoid leaking data.  If you would like to publish
      # transparency data even for private images, pass --force to cosign below.
      # https://github.com/sigstore/cosign
      - name: Sign the published Docker image
        if: ${{ github.event_name != 'pull_request' }}
        env:
          # https://docs.github.com/en/actions/security-guides/security-hardening-for-github-actions#using-an-intermediate-environment-variable
          TAGS: ${{ steps.meta.outputs.tags }}
          DIGEST: ${{ steps.build-and-push.outputs.digest }}
        # This step uses the identity token to provision an ephemeral certificate
        # against the sigstore community Fulcio instance.
        run: echo "${TAGS}" | xargs -I {} cosign sign --yes {}@${DIGEST}