name: Build GDExtension

on:
  push:
    paths:
      - 'protocol/gdextension/**'
      - 'protocol/library/**'
      - '.github/workflows/build-gdextension.yml'
  pull_request:
    paths:
      - 'protocol/gdextension/**'
      - 'protocol/library/**'
      - '.github/workflows/build-gdextension.yml'
  workflow_dispatch:

env:
  CARGO_TERM_COLOR: always

jobs:
  build-gdextension:
    name: Build GDExtension
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        include:
          - os: ubuntu-latest
            target: x86_64-unknown-linux-gnu
            platform: linux
            lib_name: libgurt_godot.so
          - os: windows-latest
            target: x86_64-pc-windows-msvc
            platform: windows
            lib_name: gurt_godot.dll

    steps:
    - uses: actions/checkout@v4

    - name: Install Rust
      uses: dtolnay/rust-toolchain@stable
      with:
        targets: ${{ matrix.target }}

    - name: Cache cargo dependencies
      uses: actions/cache@v4
      with:
        path: |
          ~/.cargo/registry/index/
          ~/.cargo/registry/cache/
          ~/.cargo/git/db/
          protocol/target/
        key: ${{ runner.os }}-gdextension-${{ hashFiles('protocol/gdextension/Cargo.lock', 'protocol/library/Cargo.toml') }}
        restore-keys: |
          ${{ runner.os }}-gdextension-
          ${{ runner.os }}-cargo-

    - name: Build GDExtension
      run: |
        cd protocol/gdextension
        cargo build --release --target ${{ matrix.target }}

    - name: Prepare artifacts
      shell: bash
      run: |
        mkdir -p artifacts/${{ matrix.platform }}
        cp protocol/gdextension/target/${{ matrix.target }}/release/${{ matrix.lib_name }} artifacts/${{ matrix.platform }}/
        
        # Also copy the extension configuration files
        cp protocol/gdextension/gurt_godot.gdextension artifacts/${{ matrix.platform }}/
        cp protocol/gdextension/plugin.cfg artifacts/${{ matrix.platform }}/
        cp protocol/gdextension/plugin.gd artifacts/${{ matrix.platform }}/

    - name: Upload GDExtension artifacts
      uses: actions/upload-artifact@v4
      with:
        name: gdextension-${{ matrix.platform }}
        path: artifacts/${{ matrix.platform }}
        retention-days: 30