name: Build RPM Package
concurrency:
  group: "rpm-build-${{ github.ref }}"
  cancel-in-progress: true

on:
  push:
    paths:
      - 'fedora/**'
      - 'src/**'
      - 'Cargo.toml'
      - 'Cargo.lock'
      - '.forgejo/workflows/rpm-build.yml'
  pull_request:
    paths:
      - 'fedora/**'
      - 'src/**'
      - 'Cargo.toml'
      - 'Cargo.lock'
      - '.forgejo/workflows/rpm-build.yml'
  workflow_dispatch:

jobs:
  rpm-build:
    name: Build RPM Package
    runs-on: ubuntu-latest
    container:
      image: "fedora:latest"

    steps:
      - name: Detect Fedora version
        id: fedora
        run: |
          VERSION=$(rpm -E %fedora)
          echo "version=$VERSION" >> $GITHUB_OUTPUT
          echo "Fedora version: $VERSION"

      - name: Install Node.js and git for Actions
        run: |
          dnf install -y nodejs git
          node --version

      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0  # rpkg needs full history for git macros

      - name: Cache DNF packages
        uses: actions/cache@v4
        with:
          path: |
            /var/cache/dnf
            /var/cache/yum
          key: dnf-fedora${{ steps.fedora.outputs.version }}-${{ hashFiles('fedora/continuwuity.spec.rpkg') }}-v1
          restore-keys: |
            dnf-fedora${{ steps.fedora.outputs.version }}-

      - name: Install build dependencies
        run: |
          dnf install -y --setopt=keepcache=1 \
            wget \
            rpm-build \
            rpmdevtools \
            rpkg \
            cargo-rpm-macros \
            systemd-rpm-macros \
            clang \
            liburing-devel \
            rust \
            cargo \
            gcc \
            gcc-c++ \
            make \
            openssl-devel \
            pkg-config \
            python3-pip

      - name: Cache Cargo registry
        uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
          key: cargo-fedora${{ steps.fedora.outputs.version }}-${{ hashFiles('**/Cargo.lock') }}
          restore-keys: |
            cargo-fedora${{ steps.fedora.outputs.version }}-

      - name: Setup sccache
        uses: https://github.com/mozilla-actions/sccache-action@v0.0.9
        with:
          token: ${{ secrets.GH_PUBLIC_RO }}

      - name: Configure sccache environment
        run: |
          echo "RUSTC_WRAPPER=sccache" >> $GITHUB_ENV
          echo "CMAKE_C_COMPILER_LAUNCHER=sccache" >> $GITHUB_ENV
          echo "CMAKE_CXX_COMPILER_LAUNCHER=sccache" >> $GITHUB_ENV

          # Set sccache cache size limit
          echo "SCCACHE_CACHE_SIZE=2G" >> $GITHUB_ENV

      - name: Setup build environment and build SRPM
        run: |
          # Configure git for rpkg
          git config --global --add safe.directory "$GITHUB_WORKSPACE"
          git config --global user.email "ci@continuwuity.org"
          git config --global user.name "Continuwuity"

          # Setup RPM build tree
          rpmdev-setuptree

          echo "::group::📦 Building source RPM with rpkg"
          cd "$GITHUB_WORKSPACE"

          # Determine release suffix based on ref type and branch
          if [[ "${{ github.ref }}" == "refs/tags/"* ]]; then
            # Tags get clean version numbers for stable releases
            RELEASE_SUFFIX=""
          elif [ "${{ github.ref_name }}" = "main" ]; then
            # Main branch gets .dev suffix
            RELEASE_SUFFIX=".dev"
          else
            # Other branches get sanitized branch name as suffix
            SAFE_BRANCH=$(echo "${{ github.ref_name }}" | sed 's/[^a-zA-Z0-9]/_/g' | cut -c1-20)
            RELEASE_SUFFIX=".${SAFE_BRANCH}"
          fi

          # Create a temporary spec file with the release suffix
          if [ -n "$RELEASE_SUFFIX" ]; then
            # Replace the Release line to include our suffix
            sed "s/^Release:.*$/Release:        1${RELEASE_SUFFIX}%{?dist}/" \
              fedora/continuwuity.spec.rpkg > continuwuity.spec.rpkg
          else
            # Use the original spec file
            ln -sf fedora/continuwuity.spec.rpkg continuwuity.spec.rpkg
          fi

          # Build the SRPM
          rpkg srpm --outdir "$HOME/rpmbuild/SRPMS"

          # List generated SRPM
          echo "Generated SRPM:"
          ls -la "$HOME/rpmbuild/SRPMS/"
          echo "::endgroup::"

      - name: Build RPM from SRPM
        run: |
          # Find the SRPM file
          SRPM=$(find "$HOME/rpmbuild/SRPMS" -name "*.src.rpm" | head -1)

          if [ -z "$SRPM" ]; then
            echo "Error: No SRPM file found"
            exit 1
          fi

          echo "Building from SRPM: $SRPM"

          # Build the binary RPM
          # Note: Using rpmbuild directly since mock would need additional setup
          rpmbuild --rebuild "$SRPM" \
            --define "_topdir $HOME/rpmbuild" \
            --define "_sourcedir $GITHUB_WORKSPACE" \
            --nocheck  # Skip %check section to avoid test dependencies

      - name: List built packages
        run: |
          echo "Binary RPMs:"
          find "$HOME/rpmbuild/RPMS" -name "*.rpm" -type f -exec ls -la {} \;

          echo ""
          echo "Source RPMs:"
          find "$HOME/rpmbuild/SRPMS" -name "*.rpm" -type f -exec ls -la {} \;

      - name: Test RPM installation
        run: |
          # Find the binary RPM
          RPM=$(find "$HOME/rpmbuild/RPMS" -name "continuwuity-*.rpm" ! -name "*.src.rpm" | head -1)

          if [ -z "$RPM" ]; then
            echo "Error: No binary RPM file found"
            exit 1
          fi

          echo "Testing installation of: $RPM"

          # Dry run first
          rpm -qpi "$RPM"
          echo ""
          rpm -qpl "$RPM"

          # Actually install it (would need --nodeps if dependencies aren't met)
          dnf install -y "$RPM" || rpm -ivh --nodeps "$RPM"

          # Verify installation
          rpm -qa | grep continuwuity

          # Check that the binary exists
          [ -f /usr/bin/conduwuit ] && echo "✅ Binary installed successfully"
          [ -f /usr/lib/systemd/system/conduwuit.service ] && echo "✅ Systemd service installed"
          [ -f /etc/conduwuit/conduwuit.toml ] && echo "✅ Config file installed"

      - name: Collect artifacts
        if: success()
        run: |
          mkdir -p artifacts

          # Copy all RPMs to artifacts directory
          find "$HOME/rpmbuild/RPMS" -name "*.rpm" -type f -exec cp {} artifacts/ \;
          find "$HOME/rpmbuild/SRPMS" -name "*.rpm" -type f -exec cp {} artifacts/ \;

          # Create metadata file
          cd artifacts
          echo "Build Information:" > BUILD_INFO.txt
          echo "==================" >> BUILD_INFO.txt
          echo "Git commit: ${{ github.sha }}" >> BUILD_INFO.txt
          echo "Git branch: ${{ github.ref_name }}" >> BUILD_INFO.txt
          echo "Build date: $(date -u +%Y-%m-%d_%H:%M:%S_UTC)" >> BUILD_INFO.txt
          echo "" >> BUILD_INFO.txt
          echo "Package contents:" >> BUILD_INFO.txt
          echo "-----------------" >> BUILD_INFO.txt
          for rpm in *.rpm; do
            echo "" >> BUILD_INFO.txt
            echo "File: $rpm" >> BUILD_INFO.txt
            rpm -qpi "$rpm" 2>/dev/null | grep -E "^(Name|Version|Release|Architecture|Size)" >> BUILD_INFO.txt
          done

          ls -la

      - name: Upload binary RPM artifact
        if: success()
        run: |
          # Find the main binary RPM (exclude debug and source RPMs)
          BIN_RPM=$(find artifacts -name "continuwuity-*.rpm" \
            ! -name "*debuginfo*" \
            ! -name "*debugsource*" \
            ! -name "*.src.rpm" \
            -type f)

          # Create temp directory for this artifact
          mkdir -p upload-bin
          cp $BIN_RPM upload-bin/

      - name: Upload binary RPM
        if: success()
        uses: actions/upload-artifact@v3
        with:
          name: continuwuity
          path: upload-bin/

      - name: Upload debug RPM artifact
        if: success()
        uses: actions/upload-artifact@v3
        with:
          name: continuwuity-debug
          path: artifacts/*debuginfo*.rpm

      - name: Publish to RPM Package Registry
        if: success() && (github.event_name == 'push' || github.event_name == 'workflow_dispatch')
        run: |

          # Find the binary RPM (exclude source RPMs)
          RPM=$(find artifacts -name "continuwuity-*.rpm" ! -name "*.src.rpm" | head -1)

          if [ -z "$RPM" ]; then
            echo "No binary RPM found to publish"
            exit 0
          fi

          # Extract version from RPM filename
          RPM_BASENAME=$(basename "$RPM")
          echo "Publishing: $RPM_BASENAME"

          # Determine the group based on ref type and branch
          if [[ "${{ github.ref }}" == "refs/tags/"* ]]; then
            GROUP="stable"
          elif [ "${{ github.ref_name }}" = "main" ]; then
            GROUP="dev"
          else
            # Use sanitized branch name as group for feature branches
            GROUP=$(echo "${{ github.ref_name }}" | sed 's/[^a-zA-Z0-9]/-/g' | tr '[:upper:]' '[:lower:]' | cut -c1-30)
          fi

          # Extract package info from RPM for deletion
          PACKAGE_INFO=$(rpm -qpi "$RPM" 2>/dev/null)
          PACKAGE_NAME=$(echo "$PACKAGE_INFO" | grep "^Name" | awk '{print $3}')
          PACKAGE_VERSION=$(echo "$PACKAGE_INFO" | grep "^Version" | awk '{print $3}')
          PACKAGE_RELEASE=$(echo "$PACKAGE_INFO" | grep "^Release" | awk '{print $3}')
          PACKAGE_ARCH=$(echo "$PACKAGE_INFO" | grep "^Architecture" | awk '{print $2}')

          # Full version includes release
          FULL_VERSION="${PACKAGE_VERSION}-${PACKAGE_RELEASE}"

          # Try to delete existing package first (ignore errors if it doesn't exist)
          echo "Removing any existing package: $PACKAGE_NAME-$FULL_VERSION.$PACKAGE_ARCH"
          curl -X DELETE \
            -H "Authorization: token ${{ secrets.BUILTIN_REGISTRY_PASSWORD || secrets.GITHUB_TOKEN }}" \
            "https://forgejo.ellis.link/api/packages/continuwuation/rpm/$GROUP/package/$PACKAGE_NAME/$FULL_VERSION/$PACKAGE_ARCH" \
            || echo "Package didn't exist or deletion failed (this is OK)"

          # Upload to Forgejo package registry
          # Using the RPM registry endpoint with group support
          curl --fail-with-body \
            -X PUT \
            -H "Authorization: token ${{ secrets.BUILTIN_REGISTRY_PASSWORD || secrets.GITHUB_TOKEN }}" \
            -H "Content-Type: application/x-rpm" \
            -T "$RPM" \
            "https://forgejo.ellis.link/api/packages/continuwuation/rpm/$GROUP/upload"

          echo ""
          echo "✅ Published to: https://forgejo.ellis.link/continuwuation/-/packages/rpm/continuwuity/"
          echo "Group: $GROUP"

          # Also upload the SRPM
          SRPM=$(find artifacts -name "*.src.rpm" | head -1)
          if [ -n "$SRPM" ]; then
            echo ""
            echo "Publishing source RPM: $(basename "$SRPM")"

            # Extract SRPM info for deletion
            SRPM_INFO=$(rpm -qpi "$SRPM" 2>/dev/null)
            SRPM_ARCH=$(echo "$SRPM_INFO" | grep "^Architecture" | awk '{print $2}')

            # Try to delete existing SRPM first (using same name/version as binary RPM)
            echo "Removing any existing SRPM: $PACKAGE_NAME-$FULL_VERSION.$SRPM_ARCH"
            curl -X DELETE \
              -H "Authorization: token ${{ secrets.BUILTIN_REGISTRY_PASSWORD || secrets.GITHUB_TOKEN }}" \
              "https://forgejo.ellis.link/api/packages/continuwuation/rpm/$GROUP/package/$PACKAGE_NAME/$FULL_VERSION/$SRPM_ARCH" \
              || echo "SRPM didn't exist or deletion failed (this is OK)"

            curl --fail-with-body \
              -X PUT \
              -H "Authorization: token ${{ secrets.BUILTIN_REGISTRY_PASSWORD || secrets.GITHUB_TOKEN }}" \
              -H "Content-Type: application/x-rpm" \
              -T "$SRPM" \
              "https://forgejo.ellis.link/api/packages/continuwuation/rpm/$GROUP/upload"
          fi