name: Check Genesis Hooks

on:
  push:
  pull_request:

jobs:
  check-genesis-hooks:
    runs-on: ubuntu-24.04
    env:
      CLANG_VERSION: 18
    name: Verify xahau.h is in sync with genesis hooks

    steps:
      - name: Checkout repository
        uses: actions/checkout@v6

      # Install binaryen from GitHub Releases (pinned to version 100)
      - name: Install binaryen (version 100)
        run: |
          curl -LO https://github.com/WebAssembly/binaryen/releases/download/version_100/binaryen-version_100-x86_64-linux.tar.gz
          tar -xzf binaryen-version_100-x86_64-linux.tar.gz
          sudo cp binaryen-version_100/bin/* /usr/local/bin/
          wasm-opt --version

      - name: Install clang-format
        run: |
          codename=$( lsb_release --codename --short )
          sudo tee /etc/apt/sources.list.d/llvm.list >/dev/null <<EOF
          deb http://apt.llvm.org/${codename}/ llvm-toolchain-${codename}-${CLANG_VERSION} main
          deb-src http://apt.llvm.org/${codename}/ llvm-toolchain-${codename}-${CLANG_VERSION} main
          EOF
          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add
          sudo apt-get update
          sudo apt-get install clang-format-${CLANG_VERSION}
          clang-format --version

      # Install wasienv (WebAssembly SDK)
      - name: Install wasienv
        run: |
          # Download install.sh
          curl -o /tmp/wasienv-install.sh https://raw.githubusercontent.com/wasienv/wasienv/master/install.sh
          
          # Replace /bin to /local/bin
          sed -i 's|/bin|/local/bin|g' /tmp/wasienv-install.sh

          # Execute the installed script
          bash /tmp/wasienv-install.sh

      # Add wasienv to PATH for subsequent steps
      - name: Setup wasienv
        run: |
          echo "$HOME/.wasienv/bin" >> $GITHUB_PATH
          wasmcc -v || true

      # Build and install hook-cleaner tool
      - name: Build and install hook-cleaner
        run: |
          git clone https://github.com/richardah/hook-cleaner-c.git /tmp/hook-cleaner
          cd /tmp/hook-cleaner
          make
          cp hook-cleaner /usr/local/bin/
          chmod +x /usr/local/bin/hook-cleaner

      # Build and install guard_checker tool
      - name: Build and install guard_checker
        run: |
          cd include/xrpl/hook
          make
          cp guard_checker /usr/local/bin/
          chmod +x /usr/local/bin/guard_checker

      # Verify all required tools are available
      - name: Verify required tools
        run: |
          echo "Checking tool availability..."
          command -v wasmcc || (echo "Error: wasmcc not found" && exit 1)
          command -v wasm-opt || (echo "Error: wasm-opt not found" && exit 1)
          command -v hook-cleaner || (echo "Error: hook-cleaner not found" && exit 1)
          command -v guard_checker || (echo "Error: guard_checker not found" && exit 1)
          command -v xxd || (echo "Error: xxd not found" && exit 1)
          command -v clang-format || (echo "Error: clang-format not found" && exit 1)
          echo "All tools verified successfully"

      # Execute build script to regenerate xahau.h
      - name: Run build_xahau_h.sh
        run: |
          cd hook/genesis
          ./build_xahau_h.sh

      # Check if xahau.h has changed (fail if out of sync)
      - name: Verify xahau.h is in sync
        run: |
          if ! git diff --exit-code include/xrpl/hook/xahau.h; then
            echo ""
            echo "❌ ERROR: xahau.h is out of sync with genesis hooks"
            echo ""
            echo "The generated xahau.h differs from the committed version."
            echo "Please run the following command and commit the changes:"
            echo ""
            echo "    cd hook/genesis && ./build_xahau_h.sh"
            echo ""
            echo "Diff:"
            git diff include/xrpl/hook/xahau.h
            exit 1
          fi
          echo "✅ xahau.h is in sync with genesis hooks"