name: Build and Release

# Releases are driven by the version in package.json: bump it (e.g.
# `npm version patch --no-git-tag-version`) and push to main. If no tag
# v<version> exists yet, the release job pushes the Docker image and creates
# the tag and Gitea release. Build and release run in sequence in one
# workflow, so they never race for the runner's action cache.

on:
  push:
    branches:
      - main
      - develop
  pull_request:
    branches:
      - main

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: https://github.com/actions/checkout@v4

      - name: Set up Docker Buildx
        uses: https://github.com/docker/setup-buildx-action@v3
        with:
          config-inline: |
            [registry."gitea.sanplex.xyz/sansan"]
              http = true
              insecure = true

      - name: Build Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ./Dockerfile
          push: false
          cache-from: type=gha
          cache-to: type=gha,mode=max

  release:
    needs: build
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    runs-on: ubuntu-latest
    steps:
      - uses: https://github.com/actions/checkout@v4
        with:
          fetch-depth: 0
          fetch-tags: true

      - name: Check version
        id: version
        run: |
          VERSION="v$(node -p "require('./package.json').version")"
          echo "tag=$VERSION" >> "$GITHUB_OUTPUT"
          if git rev-parse -q --verify "refs/tags/$VERSION" >/dev/null; then
            echo "$VERSION already released, nothing to do"
            echo "release=false" >> "$GITHUB_OUTPUT"
          else
            echo "Releasing $VERSION"
            echo "release=true" >> "$GITHUB_OUTPUT"
          fi

      - name: Set up QEMU
        if: steps.version.outputs.release == 'true'
        uses: https://github.com/docker/setup-qemu-action@v3

      - name: Set up Docker Buildx
        if: steps.version.outputs.release == 'true'
        uses: https://github.com/docker/setup-buildx-action@v3
        with:
          config-inline: |
            [registry."gitea.sanplex.xyz/sansan"]
              http = true
              insecure = true

      - name: Login to Gitea Container Registry
        if: steps.version.outputs.release == 'true'
        uses: docker/login-action@v3
        with:
          registry: gitea.sanplex.xyz
          username: sansan
          password: ${{ secrets.TOKEN }}

      - name: Build and push multi-arch image
        if: steps.version.outputs.release == 'true'
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ./Dockerfile
          platforms: linux/amd64,linux/arm64
          push: true
          tags: |
            gitea.sanplex.xyz/sansan/musicfrontend:${{ steps.version.outputs.tag }}
            gitea.sanplex.xyz/sansan/musicfrontend:latest
          cache-from: type=gha
          cache-to: type=gha,mode=max

      - name: Create Release
        if: steps.version.outputs.release == 'true'
        uses: akkuman/gitea-release-action@v1
        env:
          NODE_OPTIONS: '--experimental-fetch' # if nodejs < 18
        with:
          tag_name: ${{ steps.version.outputs.tag }}
          target_commitish: ${{ github.sha }}
          body: |
            Docker image: `gitea.sanplex.xyz/sansan/musicfrontend:${{ steps.version.outputs.tag }}`