name: Release Binaries

on:
  release:
    types: [published]

jobs:
  build:
    runs-on: ${{ matrix.runner }}
    strategy:
      fail-fast: false

      matrix:
        include:
          - arch: amd64
            platform: linux/amd64
            image: ocaml/opam:ubuntu-22.04-ocaml-5.4
            runner: linux-amd64
            static: ""
            upx_install: "sudo apt install -y upx"
          - arch: arm64
            platform: linux/arm64
            image: ocaml/opam:alpine-ocaml-5.4
            runner: linux-arm64
            static: "OCAMLPARAM='_,ccopt=-static,cclib=-static'"
            upx_install: "sudo apk add upx"

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Build (${{ matrix.arch }})
        run: |
          set -o pipefail

          # Crea il container senza avviarlo
          CID=$(docker create \
            --platform ${{ matrix.platform }} \
            -w /src \
            ${{ matrix.image }} \
            sleep infinity)

          # Copia i sorgenti dentro con docker cp (funziona anche in DinD)
          docker cp "${{ github.workspace }}/." "$CID:/src"

          # Avvia ed esegui la build
          docker start "$CID"
          docker exec "$CID" bash -c "
            ${{ matrix.upx_install }}
            sudo chown -R opam:opam /src
            opam update
            opam install . --deps-only -y --no-depexts
            ${{ matrix.static }} opam exec -- dune build @install --release
            opam exec -- dune install --prefix /src/dist
            upx /src/dist/bin/ical2rem
          " 2>&1 | cat

          # Copia il binario fuori
          docker cp "$CID:/src/dist/bin/ical2rem" \
            "${{ github.workspace }}/ical2rem-linux-${{ matrix.arch }}"

          docker rm -f "$CID"

      - name: Carica artefatto sulla release
        env:
          TOKEN: ${{ secrets.GITHUB_TOKEN }}
          RELEASE_ID: ${{ github.event.release.id }}
        run: |
          FILENAME="ical2rem-linux-${{ matrix.arch }}"
          curl -s -X POST \
            "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/releases/${RELEASE_ID}/assets?name=${FILENAME}" \
            -H "Authorization: token ${TOKEN}" \
            -H "Content-Type: application/octet-stream" \
            --data-binary "@${FILENAME}"