name: Prebuilt release

on:
  push:
    branches:
      - main
  workflow_dispatch:

permissions:
  contents: read
  releases: write

jobs:
  prebuilt:
    runs-on: ubuntu-latest
    env:
      CARGO_TERM_COLOR: always

    steps:
      - name: Check out repository
        uses: actions/checkout@v4

      - name: Install nightly Rust
        uses: dtolnay/rust-toolchain@nightly
        with:
          targets: x86_64-pc-windows-gnu

      - name: Install MinGW and packaging tools
        run: |
          sudo apt-get update
          sudo apt-get install -y mingw-w64 zip unzip jq

      - name: Build release binaries
        env:
          CARGO_TARGET_X86_64_PC_WINDOWS_GNU_LINKER: x86_64-w64-mingw32-gcc
        run: cargo build --release --target x86_64-pc-windows-gnu -p ext -p launcher

      - name: Package prebuilt release
        run: |
          set -euo pipefail

          rm -rf dist
          mkdir -p dist
          cp target/x86_64-pc-windows-gnu/release/hkrpg.dll dist/
          cp target/x86_64-pc-windows-gnu/release/launcher.exe dist/

          test -f dist/hkrpg.dll
          test -f dist/launcher.exe

          (
            cd dist
            zip -9 -q ../hkrpg.zip hkrpg.dll launcher.exe
          )
          unzip -l hkrpg.zip

      - name: Publish prebuilt release
        env:
          GITEA_API_URL: ${{ gitea.server_url }}/api/v1
          GITEA_REPOSITORY: ${{ gitea.repository }}
          GITEA_SHA: ${{ gitea.sha }}
          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
        run: |
          set -euo pipefail

          api="${GITEA_API_URL}"
          repo="${GITEA_REPOSITORY}"
          tag="prebuilt"
          auth=(-H "Authorization: token ${GITEA_TOKEN}" -H "Accept: application/json")

          release_status="$(curl -sS "${auth[@]}" -o release.json -w '%{http_code}' \
            "${api}/repos/${repo}/releases/tags/${tag}" || true)"

          case "${release_status}" in
            200)
              ;;
            404)
              curl -fsS -X POST "${auth[@]}" \
                -H "Content-Type: application/json" \
                -d "{\"tag_name\":\"${tag}\",\"target_commitish\":\"${GITEA_SHA}\",\"name\":\"${tag}\",\"body\":\"Automated prebuilt binaries for ${GITEA_SHA}\",\"draft\":false,\"prerelease\":false}" \
                "${api}/repos/${repo}/releases" > release.json
              ;;
            *)
              cat release.json
              exit 1
              ;;
          esac

          release_id="$(jq -er '.id' release.json)"
          assets="$(curl -fsS "${auth[@]}" \
            "${api}/repos/${repo}/releases/${release_id}/assets")"

          while read -r asset_id; do
            test -z "${asset_id}" || curl -fsS -X DELETE "${auth[@]}" \
              "${api}/repos/${repo}/releases/${release_id}/assets/${asset_id}"
          done < <(printf '%s' "${assets}" | jq -r '.[] | select(.name == "hkrpg.zip") | .id')

          curl -fsS -X POST "${auth[@]}" \
            -F "attachment=@hkrpg.zip;type=application/zip" \
            "${api}/repos/${repo}/releases/${release_id}/assets?name=hkrpg.zip"