name: CD

on:
  push:
    branches:
      - main

env:
  DOCKER_REGISTRY: gitea.t000-n.de

jobs:
  check-changes:
    name: Check changes
    runs-on: ubuntu-latest
    outputs:
      changes: ${{ steps.filter.outputs.code }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Get changes
        id: filter
        uses: dorny/paths-filter@v3
        with:
          filters: |
            code:
              - 'go.mod'
              - 'go.sum'
              - '**/*.go'
              - 'config.example.yaml'
              - 'Dockerfile'
              - 'Makefile'

  test:
    name: test
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Setup go
        uses: actions/setup-go@v5
        with:
          go-version-file: go.mod
          check-latest: true
      - name: Create cache key
        uses: https://gitea.com/actions/go-hashfiles@v0.0.1
        id: hash-go
        with:
          patterns: |
            go.mod
            go.sum
      - name: cache go
        id: cache-go
        uses: actions/cache@v4
        with:
          path: |
            /go_path
            /go_cache
          key: go_path-${{ steps.hash-go.outputs.hash }}
          restore-keys: |-
            go_cache-${{ steps.hash-go.outputs.hash }}
      - name: build
        run: make build
      - name: test
        run: make test

  build_and_push:
    name: Build and push
    strategy:
      matrix:
        arch: [amd64, arm64]
    needs:
      - test
      - check-changes
    if: ${{ needs.check-changes.outputs.code == 'true' }}
    runs-on:
      - ubuntu-latest
      - linux_${{ matrix.arch }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
      - name: Login to Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.DOCKER_REGISTRY }}
          username: ${{ secrets.REGISTRY_USER }}
          password: ${{ secrets.REGISTRY_PASSWORD }}
      - name: Get Metadata
        id: meta
        run: |
          echo REPO_NAME=$(echo ${GITHUB_REPOSITORY} | awk -F"/" '{print $2}' | tr '[:upper:]' '[:lower:]') >> $GITHUB_OUTPUT
          echo REPO_VERSION=$(git describe --tags --always | sed 's/^v//') >> $GITHUB_OUTPUT
      - name: Build and push
        uses: docker/build-push-action@v6
        with:
          context: .
          file: ./Dockerfile
          platforms: linux/${{ matrix.arch }}
          push: true
          provenance: false
          build-args: GOARCH=${{ matrix.arch }}
          tags: |
            ${{ env.DOCKER_REGISTRY }}/t.behrendt/${{ steps.meta.outputs.REPO_NAME }}:${{ steps.meta.outputs.REPO_VERSION }}-${{ matrix.arch }}

  create_manifest:
    name: Create manifest
    needs:
      - build_and_push
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Get Metadata
        id: meta
        run: |
          echo REPO_NAME=$(echo ${GITHUB_REPOSITORY} | awk -F"/" '{print $2}' | tr '[:upper:]' '[:lower:]') >> $GITHUB_OUTPUT
          echo REPO_VERSION=$(git describe --tags --always | sed 's/^v//') >> $GITHUB_OUTPUT

      - name: Login to Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.DOCKER_REGISTRY }}
          username: ${{ secrets.REGISTRY_USER }}
          password: ${{ secrets.REGISTRY_PASSWORD }}

      - name: Create manifest
        run: |
          docker manifest create ${{ env.DOCKER_REGISTRY }}/t.behrendt/${{ steps.meta.outputs.REPO_NAME }}:latest \
            ${{ env.DOCKER_REGISTRY }}/t.behrendt/${{ steps.meta.outputs.REPO_NAME }}:${{ steps.meta.outputs.REPO_VERSION }}-amd64 \
            ${{ env.DOCKER_REGISTRY }}/t.behrendt/${{ steps.meta.outputs.REPO_NAME }}:${{ steps.meta.outputs.REPO_VERSION }}-arm64

          docker manifest push ${{ env.DOCKER_REGISTRY }}/t.behrendt/${{ steps.meta.outputs.REPO_NAME }}:latest