name: Publish FaceAI Container

on:
  push:
    branches:
      - master
    paths:
      - faceai/**
      - bin/Face_Recognition_Unix/**
      - .forgejo/workflows/publish-faceai-container.yml
  workflow_dispatch:

env:
  REGISTRY: ${{ vars.FORGEJO_REGISTRY }}
  IMAGE_NAMESPACE: ${{ vars.IMAGE_NAMESPACE }}
  CLIENT_IMAGE_NAME: ${{ vars.IMAGE_NAME != '' && vars.IMAGE_NAME || 'faceai-client' }}
  PROCESSOR_IMAGE_NAME: ${{ vars.PROCESSOR_IMAGE_NAME != '' && vars.PROCESSOR_IMAGE_NAME || 'faceai-processor' }}
  BUILD_CONTEXT: .
  CLIENT_DOCKERFILE_PATH: faceai/docker/Dockerfile
  PROCESSOR_DOCKERFILE_PATH: faceai/docker/processor.Dockerfile

jobs:
  publish:
    runs-on: docker
    env:
      DOCKER_HOST: ${{ vars.DOCKER_HOST != '' && vars.DOCKER_HOST || 'tcp://172.17.0.1:2375' }}

    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          lfs: true

      - name: Validate workflow variables
        run: |
          set -eu
          if [ -z "${REGISTRY}" ]; then echo "vars.FORGEJO_REGISTRY is required"; exit 1; fi
          if [ -z "${IMAGE_NAMESPACE}" ]; then echo "vars.IMAGE_NAMESPACE is required"; exit 1; fi
          if [ -z "${CLIENT_IMAGE_NAME}" ]; then echo "client image name resolved to an empty value"; exit 1; fi
          if [ -z "${PROCESSOR_IMAGE_NAME}" ]; then echo "processor image name resolved to an empty value"; exit 1; fi
          if [ ! -f "${CLIENT_DOCKERFILE_PATH}" ]; then echo "Dockerfile not found at ${CLIENT_DOCKERFILE_PATH}"; exit 1; fi
          if [ ! -f "${PROCESSOR_DOCKERFILE_PATH}" ]; then echo "Dockerfile not found at ${PROCESSOR_DOCKERFILE_PATH}"; exit 1; fi
          if [ ! -f "faceai/package.json" ]; then echo "faceai/package.json is missing from the repository checkout"; exit 1; fi
          if [ ! -f "bin/Face_Recognition_Unix/face_matcher" ]; then echo "bin/Face_Recognition_Unix/face_matcher is missing from the repository checkout"; exit 1; fi

      - name: Validate Git LFS checkout for matcher binary
        run: |
          set -eu
          if ! command -v git >/dev/null 2>&1; then
            echo "git is required to validate Git LFS checkout"
            exit 1
          fi

          if ! git lfs version >/dev/null 2>&1; then
            echo "git-lfs is required on the runner so the processor image can include the real matcher binary"
            exit 1
          fi

          git lfs pull --include="bin/Face_Recognition_Unix/face_matcher"

          if grep -q "https://git-lfs.github.com/spec/v1" bin/Face_Recognition_Unix/face_matcher; then
            echo "bin/Face_Recognition_Unix/face_matcher is still an LFS pointer, not the real binary"
            exit 1
          fi

          MATCHER_SIZE="$(wc -c < bin/Face_Recognition_Unix/face_matcher | tr -d '[:space:]')"
          if [ "${MATCHER_SIZE}" -lt 1000000 ]; then
            echo "bin/Face_Recognition_Unix/face_matcher is unexpectedly small (${MATCHER_SIZE} bytes) and does not look like the real binary"
            exit 1
          fi

          echo "Validated Git LFS checkout for matcher binary (${MATCHER_SIZE} bytes)"

      - name: Validate registry secrets
        run: |
          set -eu
          if [ -z "${{ secrets.FORGEJO_REGISTRY_USERNAME }}" ]; then echo "secrets.FORGEJO_REGISTRY_USERNAME is required"; exit 1; fi
          if [ -z "${{ secrets.FORGEJO_REGISTRY_TOKEN }}" ]; then echo "secrets.FORGEJO_REGISTRY_TOKEN is required"; exit 1; fi

      - name: Ensure Docker CLI exists
        run: |
          set -eu
          if command -v docker >/dev/null 2>&1; then
            docker --version
            exit 0
          fi

          ARCH="$(uname -m)"
          case "${ARCH}" in
            x86_64) DOCKER_ARCH="x86_64" ;;
            aarch64|arm64) DOCKER_ARCH="aarch64" ;;
            *) echo "Unsupported architecture for Docker CLI bootstrap: ${ARCH}"; exit 1 ;;
          esac

          DOCKER_CLI_VERSION="27.5.1"
          curl -fsSL "https://download.docker.com/linux/static/stable/${DOCKER_ARCH}/docker-${DOCKER_CLI_VERSION}.tgz" -o docker.tgz
          tar -xzf docker.tgz
          mkdir -p "${HOME}/.local/bin"
          mv docker/docker "${HOME}/.local/bin/docker"
          chmod +x "${HOME}/.local/bin/docker"
          echo "${HOME}/.local/bin" >> "${GITHUB_PATH}"
          "${HOME}/.local/bin/docker" --version

      - name: Ensure Docker Buildx exists
        run: |
          set -eu
          if docker buildx version >/dev/null 2>&1; then
            docker buildx version
            exit 0
          fi

          ARCH="$(uname -m)"
          case "${ARCH}" in
            x86_64) BUILDX_ARCH="amd64" ;;
            aarch64|arm64) BUILDX_ARCH="arm64" ;;
            *) echo "Unsupported architecture for Docker Buildx bootstrap: ${ARCH}"; exit 1 ;;
          esac

          BUILDX_VERSION="v0.21.1"
          mkdir -p "${HOME}/.docker/cli-plugins"
          curl -fsSL "https://github.com/docker/buildx/releases/download/${BUILDX_VERSION}/buildx-${BUILDX_VERSION}.linux-${BUILDX_ARCH}" -o "${HOME}/.docker/cli-plugins/docker-buildx"
          chmod +x "${HOME}/.docker/cli-plugins/docker-buildx"
          docker buildx version

      - name: Check Docker daemon connectivity
        run: |
          set -eu
          echo "Using DOCKER_HOST=${DOCKER_HOST}"
          docker version
          docker info >/dev/null

      - name: Create Buildx builder
        run: |
          set -eu
          docker buildx rm forgejo-builder >/dev/null 2>&1 || true
          docker buildx create --name forgejo-builder --driver docker-container --use
          docker buildx inspect --bootstrap

      - name: Login to Forgejo registry
        run: |
          echo "${{ secrets.FORGEJO_REGISTRY_TOKEN }}" | docker login "${REGISTRY}" -u "${{ secrets.FORGEJO_REGISTRY_USERNAME }}" --password-stdin

      - name: Build and push client image
        run: |
          set -eu
          IMAGE_REF="${REGISTRY}/${IMAGE_NAMESPACE}/${CLIENT_IMAGE_NAME}"
          SHORT_SHA="$(echo "${GITHUB_SHA}" | cut -c1-12)"
          docker buildx build \
            --builder forgejo-builder \
            --file "${CLIENT_DOCKERFILE_PATH}" \
            --tag "${IMAGE_REF}:sha-${SHORT_SHA}" \
            --tag "${IMAGE_REF}:latest" \
            --push \
            "${BUILD_CONTEXT}"

      - name: Build and push processor image
        run: |
          set -eu
          IMAGE_REF="${REGISTRY}/${IMAGE_NAMESPACE}/${PROCESSOR_IMAGE_NAME}"
          SHORT_SHA="$(echo "${GITHUB_SHA}" | cut -c1-12)"
          docker buildx build \
            --builder forgejo-builder \
            --file "${PROCESSOR_DOCKERFILE_PATH}" \
            --tag "${IMAGE_REF}:sha-${SHORT_SHA}" \
            --tag "${IMAGE_REF}:latest" \
            --push \
            "${BUILD_CONTEXT}"