name: Build and Push Images

on:
  push:
    branches:
      - main
    tags:
      - 'v*'
    paths:
      - 'dockerfiles/**'
      - 'amdsmi-shim/**'
      - '.gitea/workflows/build-push.yaml'
  pull_request:
    branches:
      - main
    paths:
      - 'dockerfiles/**'
      - 'amdsmi-shim/**'
      - '.gitea/workflows/build-push.yaml'
  workflow_dispatch:
    inputs:
      image:
        description: 'Image to build (all, nvidia, rdna2, strixhalo, intel)'
        required: false
        default: 'all'

env:
  # Use internal HTTP endpoint (avoids Cloudflare 100MB limit and HTTPS issues)
  REGISTRY: gitea-http.gitea.svc.cluster.local:3000/daviestechlabs
  REGISTRY_HOST: gitea-http.gitea.svc.cluster.local:3000
  NTFY_URL: http://ntfy.observability.svc.cluster.local:80

jobs:
  # Determine semantic version BEFORE building images
  determine-version:
    runs-on: ubuntu-latest
    outputs:
      version: ${{ steps.version.outputs.version }}
      bump: ${{ steps.version.outputs.bump }}
      should_release: ${{ steps.version.outputs.should_release }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Calculate semantic version
        id: version
        run: |
          # Skip version calculation for PRs and tag pushes
          if [[ "${{ github.event_name }}" == "pull_request" ]]; then
            echo "version=pr-${{ github.event.number }}" >> $GITHUB_OUTPUT
            echo "bump=none" >> $GITHUB_OUTPUT
            echo "should_release=false" >> $GITHUB_OUTPUT
            exit 0
          fi
          
          # For tag pushes, use the tag directly
          if [[ "${{ github.ref }}" == refs/tags/v* ]]; then
            VERSION="${{ github.ref_name }}"
            echo "version=$VERSION" >> $GITHUB_OUTPUT
            echo "bump=tag" >> $GITHUB_OUTPUT
            echo "should_release=false" >> $GITHUB_OUTPUT
            exit 0
          fi
          
          # Get latest tag or default to v0.0.0
          LATEST=$(git describe --tags --abbrev=0 2>/dev/null || echo "v0.0.0")
          VERSION=${LATEST#v}
          IFS='.' read -r MAJOR MINOR PATCH <<< "$VERSION"
          
          # Check commit message for version bump keywords
          MSG="${{ github.event.head_commit.message }}"
          if echo "$MSG" | grep -qiE "^major:|BREAKING CHANGE"; then
            MAJOR=$((MAJOR + 1)); MINOR=0; PATCH=0
            BUMP="major"
          elif echo "$MSG" | grep -qiE "^(minor:|feat:|feature:)"; then
            MINOR=$((MINOR + 1)); PATCH=0
            BUMP="minor"
          else
            PATCH=$((PATCH + 1))
            BUMP="patch"
          fi
          
          NEW_VERSION="v${MAJOR}.${MINOR}.${PATCH}"
          echo "version=$NEW_VERSION" >> $GITHUB_OUTPUT
          echo "bump=$BUMP" >> $GITHUB_OUTPUT
          echo "should_release=true" >> $GITHUB_OUTPUT
          echo "📦 Version: $LATEST → $NEW_VERSION ($BUMP bump)"

  # Build all GPU worker images using a matrix strategy
  # Runs sequentially on single runner, but one job definition = simpler dependency graph
  build:
    needs: [determine-version]
    if: "!contains(github.event.head_commit.message, '[skip images]') && !contains(github.event.head_commit.message, '[ray-serve only]')"
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        include:
          - name: nvidia
            dockerfile: Dockerfile.ray-worker-nvidia
          - name: rdna2
            dockerfile: Dockerfile.ray-worker-rdna2
          - name: strixhalo
            dockerfile: Dockerfile.ray-worker-strixhalo
          - name: intel
            dockerfile: Dockerfile.ray-worker-intel
    steps:
      # For workflow_dispatch, allow building a single image
      - name: Check if should build this variant
        id: check
        run: |
          if [[ "${{ github.event_name }}" == "workflow_dispatch" ]]; then
            INPUT="${{ github.event.inputs.image }}"
            if [[ -n "$INPUT" && "$INPUT" != "all" && "$INPUT" != "${{ matrix.name }}" ]]; then
              echo "skip=true" >> $GITHUB_OUTPUT
              echo "⏭ Skipping ${{ matrix.name }} (dispatch requested: $INPUT)"
              exit 0
            fi
          fi
          echo "skip=false" >> $GITHUB_OUTPUT
          echo "🔨 Building ${{ matrix.name }}"

      - name: Checkout
        if: steps.check.outputs.skip != 'true'
        uses: actions/checkout@v4

      - name: Configure insecure registry
        if: steps.check.outputs.skip != 'true'
        run: |
          sudo mkdir -p /etc/docker
          echo '{"insecure-registries": ["${{ env.REGISTRY_HOST }}"]}' | sudo tee /etc/docker/daemon.json
          sudo kill -SIGHUP "$(pidof dockerd)" || true
          sleep 3

      - name: Login to Gitea Registry
        if: steps.check.outputs.skip != 'true' && github.event_name != 'pull_request'
        run: echo "${{ secrets.REGISTRY_TOKEN }}" | docker login "${{ env.REGISTRY_HOST }}" -u "${{ secrets.REGISTRY_USER }}" --password-stdin

      - name: Login to Docker Hub
        if: steps.check.outputs.skip != 'true' && vars.DOCKERHUB_USERNAME != ''
        run: echo "${{ secrets.DOCKERHUB_TOKEN }}" | docker login -u "${{ vars.DOCKERHUB_USERNAME }}" --password-stdin

      - name: Extract metadata
        if: steps.check.outputs.skip != 'true'
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/ray-worker-${{ matrix.name }}
          tags: |
            type=raw,value=${{ needs.determine-version.outputs.version }}
            type=raw,value=latest,enable={{is_default_branch}}

      - name: Build and push
        if: steps.check.outputs.skip != 'true'
        run: |
          # Build with all tags
          TAGS=""
          while IFS= read -r tag; do
            [ -n "$tag" ] && TAGS="$TAGS -t $tag"
          done <<< "${{ steps.meta.outputs.tags }}"
          docker build $TAGS \
            --label "org.opencontainers.image.source=${{ gitea.server_url }}/${{ gitea.repository }}" \
            --label "org.opencontainers.image.revision=${{ gitea.sha }}" \
            -f dockerfiles/${{ matrix.dockerfile }} \
            .
          # Push each tag (skip for PRs)
          if [[ "${{ github.event_name }}" != "pull_request" ]]; then
            while IFS= read -r tag; do
              [ -n "$tag" ] && docker push "$tag"
            done <<< "${{ steps.meta.outputs.tags }}"
          fi

  release:
    name: Release
    runs-on: ubuntu-latest
    needs: [determine-version, build]
    if: "needs.determine-version.outputs.should_release == 'true' && github.ref == 'refs/heads/main' && github.event_name == 'push'"
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Create and push tag
        run: |
          VERSION="${{ needs.determine-version.outputs.version }}"
          BUMP="${{ needs.determine-version.outputs.bump }}"
          echo "📦 Creating release tag: $VERSION ($BUMP bump)"
          git config user.name "gitea-actions[bot]"
          git config user.email "actions@git.daviestechlabs.io"
          git tag -a "$VERSION" -m "Release $VERSION ($BUMP)"
          git push origin "$VERSION"

  notify:
    name: Notify
    runs-on: ubuntu-latest
    needs: [determine-version, build]
    if: always()
    steps:
      - name: Notify on success
        if: "needs.build.result == 'success' || needs.build.result == 'skipped'"
        run: |
          curl -s \
            -H "Title: ✅ Images Built: ${{ gitea.repository }}" \
            -H "Priority: default" \
            -H "Tags: white_check_mark,docker" \
            -H "Click: ${{ gitea.server_url }}/${{ gitea.repository }}/actions/runs/${{ gitea.run_id }}" \
            -d "Branch: ${{ gitea.ref_name }}
          Version: ${{ needs.determine-version.outputs.version }} (${{ needs.determine-version.outputs.bump }})
          Build: ${{ needs.build.result }}" \
            ${{ env.NTFY_URL }}/gitea-ci

      - name: Notify on failure or cancellation
        if: "needs.build.result == 'failure' || needs.build.result == 'cancelled'"
        run: |
          curl -s \
            -H "Title: ❌ Image Build Failed: ${{ gitea.repository }}" \
            -H "Priority: high" \
            -H "Tags: x,docker" \
            -H "Click: ${{ gitea.server_url }}/${{ gitea.repository }}/actions/runs/${{ gitea.run_id }}" \
            -d "Branch: ${{ gitea.ref_name }}
          Version: ${{ needs.determine-version.outputs.version }}
          Build: ${{ needs.build.result }}" \
            ${{ env.NTFY_URL }}/gitea-ci