name: Setup Rust
description: Install Rust version and setup caching
inputs:
  targets:
    description: Rust targets to install
    required: false
    default: wasm32-unknown-unknown
  components:
    description: Rust components to install
    required: false
    default: ""
runs:
  using: composite
  steps:
    - name: Install Rust toolchain
      uses: dtolnay/rust-toolchain@1.86.0
      with:
        targets: ${{ inputs.targets }}
        components: ${{ inputs.components }}

    - uses: Swatinem/rust-cache@v2
      with:
        save-if: ${{ github.ref == 'refs/heads/main' || github.ref == 'refs/heads/dev' }}
        # Cache target directory but with smart cleanup
        cache-on-failure: false
        # Add shared key to deduplicate cache across jobs
        shared-key: "rust-cache"
        # Only save cache from main/dev branches to reduce storage
        workspaces: ". -> target"