name: PyVM ↔ llvmlite Parity (Optional)

on:
  workflow_dispatch:
  schedule:
    - cron: '0 6 * * *'

jobs:
  parity:
    runs-on: ubuntu-latest
    env:
      CARGO_TERM_COLOR: always
      NYASH_DISABLE_PLUGINS: '1'
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup Rust (stable)
        uses: dtolnay/rust-toolchain@stable

      - name: Cache cargo registry and build
        uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            target
          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
          restore-keys: |
            ${{ runner.os }}-cargo-

      - name: Install LLVM 18 (llvm-config-18)
        run: |
          sudo apt-get update
          sudo apt-get install -y curl ca-certificates lsb-release wget gnupg
          curl -fsSL https://apt.llvm.org/llvm.sh -o llvm.sh
          chmod +x llvm.sh
          sudo ./llvm.sh 18
          llvm-config-18 --version

      - name: Build nyash (release)
        run: cargo build --release -j 2

      - name: Parity esc_dirname_smoke (PyVM vs llvmlite)
        run: tools/parity.sh --lhs pyvm --rhs llvmlite apps/tests/esc_dirname_smoke.nyash --timeout 20

      - name: Parity string_ops_basic (PyVM vs llvmlite)
        run: tools/parity.sh --lhs pyvm --rhs llvmlite apps/tests/string_ops_basic.nyash --timeout 20

      - name: Parity ternary_nested (PyVM vs llvmlite)
        run: tools/parity.sh --lhs pyvm --rhs llvmlite apps/tests/ternary_nested.nyash --timeout 20

      - name: Parity peek_return_value (PyVM vs llvmlite)
        run: tools/parity.sh --lhs pyvm --rhs llvmlite apps/tests/peek_return_value.nyash --timeout 20