name: Core RPM Release

on:
  push:
    tags:
      - 'release/core/*'

permissions:
  code: read
  releases: write
  packages: write

env:
  RPM_DISTRO_NAME: fedora
  RPM_DISTRO_VERSION: '43'

jobs:
  build-core-rpm-release:
    runs-on: ubuntu-latest
    container:
      image: fedora:43

    steps:
      # Build inside Fedora so the RPM package repository grouping matches the
      # Fedora release we publish to.
      - name: Install system dependencies
        run: |
          set -eu
          dnf install -y \
            ca-certificates \
            curl \
            gcc \
            gcc-c++ \
            git \
            make \
            nodejs \
            openssl-devel \
            pkg-config \
            python3 \
            rpm-build \
            sqlite-devel \
            dbus-devel \
            systemd-devel
          dnf clean all

      - name: Install Rust toolchain
        run: |
          set -eu
          curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
          echo "/root/.cargo/bin" >> "$GITHUB_PATH"

      - name: Install cargo-generate-rpm
        run: cargo install cargo-generate-rpm

      - name: Check out repository code
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Build Core RPM
        working-directory: core
        run: make rpm

      - name: Prepare release assets
        env:
          RELEASE_TAG: ${{ github.ref_name }}
          RPM_PACKAGE_GROUP: ${{ vars.RPM_PACKAGE_GROUP }}
          RPM_DISTRO_NAME: ${{ env.RPM_DISTRO_NAME }}
          RPM_DISTRO_VERSION: ${{ env.RPM_DISTRO_VERSION }}
        run: |
          set -eu

          version="${RELEASE_TAG#release/core/}"
          if [ -z "$version" ] || [ "$version" = "$RELEASE_TAG" ]; then
            echo "Expected tag in the form release/core/{version}, got: $RELEASE_TAG" >&2
            exit 1
          fi

          package_version="$(awk -F ' = ' '
            $0 == "[package]" { in_pkg = 1; next }
            /^\[/ { in_pkg = 0 }
            in_pkg && $1 == "version" {
              gsub(/"/, "", $2)
              print $2
              exit
            }
          ' core/kordophoned/Cargo.toml)"

          if [ -z "$package_version" ]; then
            echo "Could not determine kordophoned package version from core/kordophoned/Cargo.toml." >&2
            exit 1
          fi

          if [ "$package_version" != "$version" ]; then
            echo "Release tag version ($version) does not match kordophoned package version ($package_version)." >&2
            exit 1
          fi

          assets_dir="${{ gitea.workspace }}/release-assets/core"
          rpm_dir="${{ gitea.workspace }}/core/target/generate-rpm"

          rm -rf "$assets_dir"
          mkdir -p "$assets_dir"

          if [ -d "$rpm_dir" ]; then
            find "$rpm_dir" -maxdepth 1 -type f -name "kordophoned-${version}-*.rpm" \
              -exec cp '{}' "$assets_dir/" ';'
          fi

          if ! find "$assets_dir" -maxdepth 1 -type f -name '*.rpm' | grep -q .; then
            echo "No core RPM artifacts were produced." >&2
            exit 1
          fi

          package_group="${RPM_PACKAGE_GROUP:-${RPM_DISTRO_NAME}/${RPM_DISTRO_VERSION}}"

          {
            printf 'RELEASE_VERSION=%s\n' "$version"
            printf 'RELEASE_ASSETS_DIR=%s\n' "$assets_dir"
            printf 'RPM_PACKAGE_GROUP=%s\n' "$package_group"
          } >> "$GITHUB_ENV"

      - name: Upload RPMs to Gitea package registry
        env:
          GITEA_SERVER_URL: ${{ gitea.server_url }}
          GITEA_REPOSITORY_OWNER: ${{ gitea.repository_owner }}
          RPM_PACKAGE_GROUP: ${{ env.RPM_PACKAGE_GROUP }}
          RPM_PACKAGE_TOKEN: ${{ secrets.RPM_PACKAGE_TOKEN }}
          RPM_PACKAGE_USERNAME: ${{ vars.RPM_PACKAGE_USERNAME }}
          RELEASE_ASSETS_DIR: ${{ env.RELEASE_ASSETS_DIR }}
        run: |
          set -eu

          owner="${GITEA_REPOSITORY_OWNER}"
          package_user="${RPM_PACKAGE_USERNAME:-${GITEA_REPOSITORY_OWNER}}"
          token="${RPM_PACKAGE_TOKEN:-}"
          group="${RPM_PACKAGE_GROUP:-}"

          if [ -z "$owner" ]; then
            echo "Could not determine package owner from workflow context." >&2
            exit 1
          fi

          if [ -z "$package_user" ]; then
            echo "Missing package upload username. Set repository or organization variable RPM_PACKAGE_USERNAME." >&2
            exit 1
          fi

          if [ -z "$token" ]; then
            echo "Missing package upload token. Set repository or organization secret RPM_PACKAGE_TOKEN." >&2
            exit 1
          fi

          upload_url="${GITEA_SERVER_URL%/}/api/packages/${owner}/rpm"
          if [ -n "$group" ]; then
            upload_url="${upload_url}/${group}"
          fi
          upload_url="${upload_url}/upload"

          found_rpm=0
          for rpm in "$RELEASE_ASSETS_DIR"/*.rpm; do
            if [ ! -e "$rpm" ] || [ "${rpm##*.}" != "rpm" ]; then
              continue
            fi

            found_rpm=1
            http_code="$(curl --silent --show-error \
              --write-out '%{http_code}' \
              --output /tmp/package-upload-response \
              --user "${package_user}:${token}" \
              --upload-file "$rpm" \
              "$upload_url")"

            case "$http_code" in
              201)
                echo "Uploaded $(basename "$rpm") to the RPM package registry."
                ;;
              409)
                echo "Package already exists for $(basename "$rpm"); skipping duplicate upload."
                ;;
              *)
                echo "Failed to upload $(basename "$rpm") to $upload_url (HTTP $http_code)." >&2
                cat /tmp/package-upload-response >&2 || true
                exit 1
                ;;
            esac
          done

          if [ "$found_rpm" -ne 1 ]; then
            echo "No core RPM artifacts were found to upload." >&2
            exit 1
          fi

      - name: Create Gitea release
        uses: https://gitea.com/actions/gitea-release-action@v1
        with:
          name: Kordophoned Core ${{ env.RELEASE_VERSION }}
          tag_name: ${{ github.ref_name }}
          target_commitish: ${{ github.sha }}
          files: |
            ${{ env.RELEASE_ASSETS_DIR }}/*.rpm