name: 'Setup Node.js, pnpm, Bun via mise'
description: 'Sets up Node.js, pnpm, and Bun from mise.toml unless explicit matrix overrides are provided'

inputs:
  node-version:
    description: 'Node.js version to use. Defaults to mise.toml'
    required: false
    default: ''
  bun-version:
    description: 'Bun version to use. Defaults to mise.toml'
    required: false
    default: ''
  enable-caching:
    description: 'Enable pnpm/tool cache'
    required: false
    default: 'true'
  enable-turbo-cache:
    description: 'Cache .turbo build outputs'
    required: false
    default: 'false'

outputs:
  node-version:
    description: 'The installed Node.js version'
    value: ${{ steps.versions.outputs.node }}
  bun-version:
    description: 'The installed Bun version'
    value: ${{ steps.versions.outputs.bun }}
  pnpm-version:
    description: 'The installed pnpm version'
    value: ${{ steps.versions.outputs.pnpm }}

runs:
  using: 'composite'
  steps:
    - name: Setup mise
      uses: jdx/mise-action@1648a7812b9aeae629881980618f079932869151 # v4.0.1
      with:
        version: 2026.5.18
        install: false
        cache: ${{ inputs.enable-caching }}

    - name: Install mise-managed Node.js and Bun
      shell: bash
      env:
        NODE_VERSION: ${{ inputs.node-version }}
        BUN_VERSION: ${{ inputs.bun-version }}
      run: |
        tools=()
        if [ -z "$NODE_VERSION" ]; then
          tools+=(node)
        fi
        if [ -z "$BUN_VERSION" ]; then
          tools+=(bun)
        fi
        if [ "${#tools[@]}" -gt 0 ]; then
          mise install "${tools[@]}"
        fi

    - name: Setup Node.js override
      if: inputs.node-version != ''
      uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
      with:
        node-version: ${{ inputs.node-version }}

    - name: Setup Bun override
      if: inputs.bun-version != ''
      uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2.2.0
      with:
        bun-version: ${{ inputs.bun-version }}

    - name: Install mise-managed pnpm
      shell: bash
      run: mise install npm:pnpm

    - name: Prefer mise-managed pnpm
      shell: bash
      run: |
        # Node.js distributions can expose their own pnpm. Keep mise.toml's
        # npm:pnpm pin ahead of the Node install, especially for Node overrides.
        echo "$(mise where npm:pnpm)/bin" >> "$GITHUB_PATH"

    - name: Resolve pnpm store path and Node version
      if: inputs.enable-caching == 'true'
      id: pnpm-store
      shell: bash
      run: |
        echo "STORE_PATH=$(pnpm store path --silent)" >> "$GITHUB_OUTPUT"
        echo "NODE_VERSION=$(node --version | sed 's/^v//')" >> "$GITHUB_OUTPUT"

    - name: Cache pnpm store
      if: inputs.enable-caching == 'true'
      uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
      with:
        path: ${{ steps.pnpm-store.outputs.STORE_PATH }}
        key: ${{ runner.os }}-node${{ steps.pnpm-store.outputs.NODE_VERSION }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
        restore-keys: |
          ${{ runner.os }}-node${{ steps.pnpm-store.outputs.NODE_VERSION }}-pnpm-store-

    - name: Cache turbo build outputs
      if: inputs.enable-caching == 'true' && inputs.enable-turbo-cache == 'true'
      uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
      with:
        path: .turbo/cache
        # Keyed per job: concurrent jobs save different task graphs under the
        # same commit, and actions/cache is first-writer-wins on exact keys.
        key: ${{ runner.os }}-turbo-${{ github.job }}-${{ github.sha }}
        restore-keys: |
          ${{ runner.os }}-turbo-${{ github.job }}-

    - name: Report versions
      id: versions
      shell: bash
      run: |
        echo "node=$(node --version | sed 's/^v//')" >> "$GITHUB_OUTPUT"
        echo "bun=$(bun --version)" >> "$GITHUB_OUTPUT"
        echo "pnpm=$(pnpm --version)" >> "$GITHUB_OUTPUT"