name: Release / Builds
# Cancel in-progress runs when a new push is made to the same branch
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: false  # Don't cancel release builds

on:
  push:
    paths-ignore:
      - "*.md"
      - "**/*.md"
      - ".gitlab-ci.yml"
      - ".gitignore"
      - "renovate.json"
      - "debian/**"
      - "docker/**"
      - "docs/**"
  # Allows you to run this workflow manually from the Actions tab
  workflow_dispatch:

env:
  BUILTIN_REGISTRY_ENABLED: "${{ vars.BUILTIN_REGISTRY != '' && ((vars.BUILTIN_REGISTRY_USER && secrets.BUILTIN_REGISTRY_PASSWORD) || (github.event_name != 'pull_request' || github.event.pull_request.head.repo.fork == false)) && 'true' || 'false' }}"

jobs:
  prepare:
    name: Prepare Build Matrix
    runs-on: ubuntu-latest

    outputs:
      images: ${{ steps.var.outputs.images }}
      images_list: ${{ steps.var.outputs.images_list }}
      build_matrix: ${{ steps.var.outputs.build_matrix }}

    steps:
      - name: Define build matrix and registries
        uses: https://github.com/actions/github-script@v7
        id: var
        with:
          script: |
            const githubRepo = '${{ github.repository }}'.toLowerCase()
            const repoId = githubRepo.split('/')[1]

            core.setOutput('github_repository', githubRepo)
            console.log('GitHub repository:', githubRepo)

            const registry = '${{ vars.BUILTIN_REGISTRY }}'
            console.log('Registry:', registry || '(not set)')

            const builtinImage = registry ? `${registry}/${githubRepo}` : ''
            console.log('Built-in image:', builtinImage || '(registry not configured)')

            let images = []
            if (process.env.BUILTIN_REGISTRY_ENABLED === "true") {
              images.push(builtinImage)
            }
            console.log('Registry enabled:', process.env.BUILTIN_REGISTRY_ENABLED)
            console.log('Images:', images.length > 0 ? images : '(none)')

            core.setOutput('images', images.join("\n"))
            core.setOutput('images_list', images.join(","))
            const platforms = ['linux/amd64', 'linux/arm64']
            const buildMatrix = {
              platform: platforms,
              target_cpu: ['base'],
              include: platforms.map(platform => { return {
                platform,
                slug: platform.replace('/', '-')
              }})
            }
            console.log('Build matrix:', JSON.stringify(buildMatrix, null, 2))
            core.setOutput('build_matrix', JSON.stringify(buildMatrix))

  build:
    name: Build Images & Binaries
    runs-on: dind
    needs: prepare
    permissions:
      contents: read
      packages: write
      attestations: write
      id-token: write
    strategy:
      matrix:
        {
          "target_cpu": ["base"],
          "profile": ["release"],
          "include":
            [
              { "platform": "linux/amd64", "slug": "linux-amd64" },
              { "platform": "linux/arm64", "slug": "linux-arm64" },
            ],
          "platform": ["linux/amd64", "linux/arm64"],
        }

    steps:
      - name: Display build matrix
        run: |
          echo "Strategy: ${{ toJSON(fromJSON(needs.prepare.outputs.build_matrix)) }}"
          echo "Matrix: ${{ toJSON(matrix) }}"

      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          persist-credentials: false
      - name: Install Rust toolchain
        id: rust-toolchain
        uses: ./.forgejo/actions/rust-toolchain

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3
      - name: Login to container registry
        if: vars.BUILTIN_REGISTRY != ''
        uses: docker/login-action@v3
        with:
          registry: ${{ vars.BUILTIN_REGISTRY }}
          username: ${{ vars.BUILTIN_REGISTRY_USER || github.actor }}
          password: ${{ secrets.BUILTIN_REGISTRY_PASSWORD || secrets.GITHUB_TOKEN }}

      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{needs.prepare.outputs.images}}
          # default labels & annotations: https://github.com/docker/metadata-action/blob/master/src/meta.ts#L509
        env:
          DOCKER_METADATA_ANNOTATIONS_LEVELS: manifest,index

      - name: Get short git commit SHA
        id: sha
        run: |
          calculatedSha=$(git rev-parse --short ${{ github.sha }})
          echo "Short SHA: $calculatedSha (from full SHA: ${{ github.sha }})"
          echo "COMMIT_SHORT_SHA=$calculatedSha" >> $GITHUB_ENV
      - name: Get commit timestamp
        run: |
          timestamp=$(git log -1 --pretty=%ct)
          echo "Commit timestamp: $timestamp ($(date -d @$timestamp))"
          echo "TIMESTAMP=$timestamp" >> $GITHUB_ENV

      - uses: ./.forgejo/actions/timelord
        with:
          key: timelord-v0
          path: .

      - name: Cache Rust registry
        uses: actions/cache@v3
        with:
          path: |
            .cargo/registry
            .cargo/git
          key: rust-registry-${{ matrix.slug }}-${{ hashFiles('**/Cargo.lock') }}
          restore-keys: |
            rust-registry-${{ matrix.slug }}-
            rust-registry-
      - name: Cache cargo target
        id: cache-cargo-target
        uses: actions/cache@v3
        with:
          path: |
            cargo-target-${{ matrix.target_cpu }}-${{ matrix.slug }}-${{ matrix.profile }}
          key: cargo-target-${{ matrix.target_cpu }}-${{ matrix.slug }}-${{ matrix.profile }}-${{ hashFiles('**/Cargo.lock', '**/Cargo.toml') }}-${{ steps.rust-toolchain.outputs.rustc_version }}
          restore-keys: |
            cargo-target-${{ matrix.target_cpu }}-${{ matrix.slug }}-${{ matrix.profile }}-${{ hashFiles('**/Cargo.lock') }}-
            cargo-target-${{ matrix.target_cpu }}-${{ matrix.slug }}-${{ matrix.profile }}-
      - name: Cache apt packages
        id: cache-apt
        uses: actions/cache@v3
        with:
          path: |
            var-cache-apt-${{ matrix.slug }}
            var-lib-apt-${{ matrix.slug }}
          key: apt-${{ matrix.slug }}-${{ hashFiles('docker/Dockerfile') }}
          restore-keys: |
            apt-${{ matrix.slug }}-
      - name: Inject build cache
        uses: https://github.com/reproducible-containers/buildkit-cache-dance@v3.1.0
        with:
          cache-map: |
            {
              ".cargo/registry": "/usr/local/cargo/registry",
              ".cargo/git/db": "/usr/local/cargo/git/db",
              "cargo-target-${{ matrix.target_cpu }}-${{ matrix.slug }}-${{ matrix.profile }}": {
                "target": "/app/target",
                "id": "cargo-target-${{ matrix.target_cpu }}-${{ matrix.slug }}-${{ matrix.profile }}"
              },
              "var-cache-apt-${{ matrix.slug }}": "/var/cache/apt",
              "var-lib-apt-${{ matrix.slug }}": "/var/lib/apt"
            }
          skip-extraction: ${{ steps.cache.outputs.cache-hit }}

      - name: Build Docker image
        id: build
        uses: docker/build-push-action@v6
        with:
          context: .
          file: "docker/Dockerfile"
          build-args: |
            GIT_COMMIT_HASH=${{ github.sha }}
            GIT_COMMIT_HASH_SHORT=${{ env.COMMIT_SHORT_SHA }}
            GIT_REMOTE_URL=${{github.event.repository.html_url }}
            GIT_REMOTE_COMMIT_URL=${{github.event.head_commit.url }}
          platforms: ${{ matrix.platform }}
          labels: ${{ steps.meta.outputs.labels }}
          annotations: ${{ steps.meta.outputs.annotations }}
          cache-from: |
            type=registry,ref=${{ vars.BUILTIN_REGISTRY }}/${{ github.repository }}:buildcache-${{ matrix.slug }}
            type=registry,ref=${{ vars.BUILTIN_REGISTRY }}/${{ github.repository }}:buildcache
          cache-to: type=registry,ref=${{ vars.BUILTIN_REGISTRY }}/${{ github.repository }}:buildcache-${{ matrix.slug }},mode=max
          sbom: true
          outputs: type=image,"name=${{ needs.prepare.outputs.images_list }}",push-by-digest=true,name-canonical=true,push=true
        env:
          SOURCE_DATE_EPOCH: ${{ env.TIMESTAMP }}

      - name: Export image digest
        run: |
          mkdir -p /tmp/digests
          digest="${{ steps.build.outputs.digest }}"
          touch "/tmp/digests/${digest#sha256:}"

      - name: Create container from image
        id: extract-binary-image
        run: |
          mkdir -p /tmp/binaries
          digest="${{ steps.build.outputs.digest }}"
          echo "container_id=$(docker create --platform ${{ matrix.platform }} ${{ needs.prepare.outputs.images_list }}@$digest)" >> $GITHUB_OUTPUT
      - name: Extract binary from container
        run: docker cp ${{ steps.extract-binary-image.outputs.container_id }}:/sbin/conduwuit /tmp/binaries/conduwuit-${{ matrix.target_cpu }}-${{ matrix.slug }}-${{ matrix.profile }}
      - name: Clean up container
        run: docker rm ${{ steps.extract-binary-image.outputs.container_id }}

      - name: Upload binary artifact
        uses: forgejo/upload-artifact@v4
        with:
          name: conduwuit-${{ matrix.target_cpu }}-${{ matrix.slug }}-${{ matrix.profile }}
          path: /tmp/binaries/conduwuit-${{ matrix.target_cpu }}-${{ matrix.slug }}-${{ matrix.profile }}
          if-no-files-found: error

      - name: Upload digest
        uses: forgejo/upload-artifact@v4
        with:
          name: digests-${{ matrix.slug }}
          path: /tmp/digests/*
          if-no-files-found: error
          retention-days: 5

  publish:
    name: Publish Multi-platform Manifest
    runs-on: dind
    needs: [prepare, build]
    steps:
      - name: Download digests
        uses: forgejo/download-artifact@v4
        with:
          path: /tmp/digests
          pattern: digests-*
          merge-multiple: true
      - name: Login to container registry
        if: vars.BUILTIN_REGISTRY != ''
        uses: docker/login-action@v3
        with:
          registry: ${{ vars.BUILTIN_REGISTRY }}
          username: ${{ vars.BUILTIN_REGISTRY_USER || github.actor }}
          password: ${{ secrets.BUILTIN_REGISTRY_PASSWORD || secrets.GITHUB_TOKEN }}

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

      - name: Extract Docker tags
        id: meta
        uses: docker/metadata-action@v5
        with:
          tags: |
            type=semver,pattern={{version}},prefix=v
            type=semver,pattern={{major}}.{{minor}},enable=${{ !startsWith(github.ref, 'refs/tags/v0.0.') }},prefix=v
            type=semver,pattern={{major}},enable=${{ !startsWith(github.ref, 'refs/tags/v0.') }},prefix=v
            type=ref,event=branch,prefix=${{ format('refs/heads/{0}', github.event.repository.default_branch) != github.ref && 'branch-' || '' }}
            type=ref,event=pr
            type=sha,format=long
            type=raw,value=latest,enable=${{ startsWith(github.ref, 'refs/tags/v') }}
          images: ${{needs.prepare.outputs.images}}
          # default labels & annotations: https://github.com/docker/metadata-action/blob/master/src/meta.ts#L509
        env:
          DOCKER_METADATA_ANNOTATIONS_LEVELS: index

      - name: Create and push manifest
        working-directory: /tmp/digests
        env:
          IMAGES: ${{needs.prepare.outputs.images}}
        shell: bash
        run: |
          IFS=$'\n'
          IMAGES_LIST=($IMAGES)
          ANNOTATIONS_LIST=($DOCKER_METADATA_OUTPUT_ANNOTATIONS)
          TAGS_LIST=($DOCKER_METADATA_OUTPUT_TAGS)
          for REPO in "${IMAGES_LIST[@]}"; do
              docker buildx imagetools create \
                $(for tag in "${TAGS_LIST[@]}"; do echo "--tag"; echo "$tag"; done) \
                $(for annotation in "${ANNOTATIONS_LIST[@]}"; do echo "--annotation"; echo "$annotation"; done) \
                $(for reference in *; do printf "$REPO@sha256:%s\n" $reference; done)
          done

      - name: Inspect image
        env:
          IMAGES: ${{needs.prepare.outputs.images}}
        shell: bash
        run: |
          IMAGES_LIST=($IMAGES)
          for REPO in "${IMAGES_LIST[@]}"; do
            docker buildx imagetools inspect $REPO:${{ steps.meta.outputs.version }}
          done