# Copyright 2024 RustFS Team
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

name: Docker Images

on:
  push:
    tags: ["*"]
    branches: [main]
    paths-ignore:
      - "**.md"
      - "**.txt"
      - ".github/**"
      - "docs/**"
      - "deploy/**"
      - "scripts/dev_*.sh"
      - "LICENSE*"
      - "README*"
      - "**/*.png"
      - "**/*.jpg"
      - "**/*.svg"
      - ".gitignore"
      - ".dockerignore"
  pull_request:
    branches: [main]
    paths-ignore:
      - "**.md"
      - "**.txt"
      - ".github/**"
      - "docs/**"
      - "deploy/**"
      - "scripts/dev_*.sh"
      - "LICENSE*"
      - "README*"
      - "**/*.png"
      - "**/*.jpg"
      - "**/*.svg"
      - ".gitignore"
      - ".dockerignore"
  workflow_dispatch:
    inputs:
      push_images:
        description: "Push images to registries"
        required: false
        default: true
        type: boolean

env:
  CARGO_TERM_COLOR: always
  REGISTRY_DOCKERHUB: rustfs/rustfs
  REGISTRY_GHCR: ghcr.io/${{ github.repository }}

jobs:
  # Check if we should build
  build-check:
    name: Build Check
    runs-on: ubuntu-latest
    outputs:
      should_build: ${{ steps.check.outputs.should_build }}
      should_push: ${{ steps.check.outputs.should_push }}
    steps:
      - name: Check build conditions
        id: check
        run: |
          should_build=false
          should_push=false

          # Always build on workflow_dispatch or when changes detected
          if [[ "${{ github.event_name }}" == "workflow_dispatch" ]] || \
             [[ "${{ github.event_name }}" == "push" ]] || \
             [[ "${{ github.event_name }}" == "pull_request" ]]; then
            should_build=true
          fi

          # Push only on main branch, tags, or manual trigger
          if [[ "${{ github.ref }}" == "refs/heads/main" ]] || \
             [[ "${{ startsWith(github.ref, 'refs/tags/') }}" == "true" ]] || \
             [[ "${{ github.event.inputs.push_images }}" == "true" ]]; then
            should_push=true
          fi

          echo "should_build=$should_build" >> $GITHUB_OUTPUT
          echo "should_push=$should_push" >> $GITHUB_OUTPUT
          echo "Build: $should_build, Push: $should_push"

  # Build multi-arch Docker images
  build-docker:
    name: Build Docker Images
    needs: build-check
    if: needs.build-check.outputs.should_build == 'true'
    runs-on: ubuntu-latest
    timeout-minutes: 60
    strategy:
      fail-fast: false
      matrix:
        variant:
          - name: production
            dockerfile: Dockerfile
            platforms: linux/amd64,linux/arm64
          - name: ubuntu
            dockerfile: .docker/Dockerfile.ubuntu22.04
            platforms: linux/amd64,linux/arm64
          - name: alpine
            dockerfile: .docker/Dockerfile.alpine
            platforms: linux/amd64,linux/arm64
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

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

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

      - name: Login to Docker Hub
        if: needs.build-check.outputs.should_push == 'true' && secrets.DOCKERHUB_USERNAME != ''
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Login to GitHub Container Registry
        if: needs.build-check.outputs.should_push == 'true'
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: |
            ${{ env.REGISTRY_DOCKERHUB }}
            ${{ env.REGISTRY_GHCR }}
          tags: |
            type=ref,event=branch,suffix=-${{ matrix.variant.name }}
            type=ref,event=pr,suffix=-${{ matrix.variant.name }}
            type=semver,pattern={{version}},suffix=-${{ matrix.variant.name }}
            type=semver,pattern={{major}}.{{minor}},suffix=-${{ matrix.variant.name }}
            type=raw,value=latest,suffix=-${{ matrix.variant.name }},enable={{is_default_branch}}
          flavor: |
            latest=false

      - name: Build and push Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ${{ matrix.variant.dockerfile }}
          platforms: ${{ matrix.variant.platforms }}
          push: ${{ needs.build-check.outputs.should_push == 'true' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha,scope=docker-${{ matrix.variant.name }}
          cache-to: type=gha,mode=max,scope=docker-${{ matrix.variant.name }}
          build-args: |
            BUILDTIME=${{ fromJSON(steps.meta.outputs.json).labels['org.opencontainers.image.created'] }}
            VERSION=${{ fromJSON(steps.meta.outputs.json).labels['org.opencontainers.image.version'] }}
            REVISION=${{ fromJSON(steps.meta.outputs.json).labels['org.opencontainers.image.revision'] }}

  # Create manifest for main production image
  create-manifest:
    name: Create Manifest
    needs: [build-check, build-docker]
    if: needs.build-check.outputs.should_push == 'true' && startsWith(github.ref, 'refs/tags/')
    runs-on: ubuntu-latest
    steps:
      - name: Login to Docker Hub
        if: secrets.DOCKERHUB_USERNAME != ''
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Create and push manifest
        run: |
          VERSION=${GITHUB_REF#refs/tags/}

          # Create main image tag (without variant suffix)
          if [[ -n "${{ secrets.DOCKERHUB_USERNAME }}" ]]; then
            docker buildx imagetools create \
              -t ${{ env.REGISTRY_DOCKERHUB }}:${VERSION} \
              -t ${{ env.REGISTRY_DOCKERHUB }}:latest \
              ${{ env.REGISTRY_DOCKERHUB }}:${VERSION}-production
          fi

          docker buildx imagetools create \
            -t ${{ env.REGISTRY_GHCR }}:${VERSION} \
            -t ${{ env.REGISTRY_GHCR }}:latest \
            ${{ env.REGISTRY_GHCR }}:${VERSION}-production