name: "Setup Copilot CLI"
description: "Install the GitHub Copilot CLI for use in GitHub Actions workflows"
branding:
  icon: "terminal"
  color: "blue"

inputs:
  version:
    description: "Version of Copilot CLI to install (e.g. '1.0.0', 'latest', 'prerelease')"
    required: false
    default: "latest"
  github-token:
    description: "GitHub token to download Copilot CLI. Defaults to the workflow token."
    required: false
    default: ${{ github.token }}

outputs:
  version:
    description: "The version of Copilot CLI that was installed"
    value: ${{ steps.version.outputs.version }}

runs:
  using: "composite"
  steps:
    - name: Install Copilot CLI
      shell: bash
      env:
        VERSION: ${{ inputs.version }}
        PREFIX: ${{ runner.tool_cache }}/copilot
        GITHUB_TOKEN: ${{ inputs.github-token }}
      run: curl -fsSL https://gh.io/copilot-install | bash

    - name: Add to PATH
      shell: bash
      run: echo "${{ runner.tool_cache }}/copilot/bin" >> "$GITHUB_PATH"

    - name: Verify installation
      id: version
      shell: bash
      run: |
        copilot --version
        echo "version=$(copilot --version | head -1)" >> "$GITHUB_OUTPUT"