name: 'Setup Weld CLI'
description: 'Downloads a specific version of the weld CLI from a GitHub release, makes it executable, and adds it to the PATH.'

inputs:
  weld-version:
    description: 'The version of weld to install (e.g., v0.2.0). Defaults to the latest release.'
    required: false
    default: 'latest'
  repo:
    description: 'The repository where the weld CLI is released, in owner/repo format.'
    required: false
    default: Xenox-Incorporated-Industries/weld
  token:
    description: 'A GitHub token with read access to the weld repository releases.'
    required: true

branding:
  icon: 'anchor'
  color: 'blue'

runs:
  using: "composite"
  steps:
    - name: Get Version Tag for Download
      id: get_version
      shell: bash
      env:
        GH_TOKEN: ${{ inputs.token }}
      run: |
        VERSION_TAG=""
        if [[ "${{ inputs.weld-version }}" == "latest" ]]; then
          echo "Figuring out the latest version..."
          # Get the tag name of the latest release from the specified repo
          VERSION_TAG=$(gh release view --repo ${{ inputs.repo }} --json tagName --jq .tagName)
          echo "Latest version is ${VERSION_TAG}"
        else
          VERSION_TAG="${{ inputs.weld-version }}"
          echo "Using specified version ${VERSION_TAG}"
        fi
        echo "tag=${VERSION_TAG}" >> $GITHUB_OUTPUT

    - name: Download Weld CLI
      shell: bash
      env:
        GH_TOKEN: ${{ inputs.token }}
      run: |
        echo "Downloading weld version '${{ inputs.weld-version }}' from repo '${{ inputs.repo }}'..."
        gh release download ${{ steps.get_version.outputs.tag }} \
          --repo ${{ inputs.repo }} \
          --pattern 'weld-binary-*' \
          --output ./weld
        echo "Download complete."

    - name: Make Weld CLI executable
      shell: bash
      run: chmod +x ./weld

    - name: Add Weld CLI to PATH
      shell: bash
      run: echo "$(pwd)" >> $GITHUB_PATH