name: 'Setup SwiftLint'
description: 'Download and install SwiftLint binary to /usr/bin'
branding:
  icon: 'code'
  color: 'blue'

inputs:
  version:
    description: 'SwiftLint version (e.g., 0.58.2). If not specified, the latest version will be used'
    required: false
    default: 'latest'

runs:
  using: 'composite'
  steps:
    - name: Detect OS
      id: os
      shell: bash
      run: |
        if [[ "$RUNNER_OS" == "macOS" ]]; then
          echo "platform=macos" >> $GITHUB_OUTPUT
          echo "archive_name=portable_swiftlint.zip" >> $GITHUB_OUTPUT
        elif [[ "$RUNNER_OS" == "Linux" ]]; then
          echo "platform=linux" >> $GITHUB_OUTPUT
          echo "archive_name=swiftlint_linux.zip" >> $GITHUB_OUTPUT
        else
          echo "Error: Unsupported OS $RUNNER_OS"
          exit 1
        fi

    - name: Get latest version
      if: inputs.version == 'latest'
      id: version
      shell: bash
      run: |
        VERSION=$(curl -s https://api.github.com/repos/realm/SwiftLint/releases/latest | grep '"tag_name":' | sed -E 's/.*"([^"]+)".*/\1/')
        if [[ -z "$VERSION" ]]; then
          echo "Error: Failed to get latest version"
          exit 1
        fi
        echo "version=$VERSION" >> $GITHUB_OUTPUT
        echo "Latest version: $VERSION"

    - name: Set version
      if: inputs.version != 'latest'
      id: version
      shell: bash
      run: |
        VERSION="${{ inputs.version }}"
        if [[ ! "$VERSION" =~ ^v ]]; then
          VERSION="v$VERSION"
        fi
        echo "version=$VERSION" >> $GITHUB_OUTPUT
        echo "Using specified version: $VERSION"

    - name: Download and install SwiftLint
      shell: bash
      run: |
        set -e

        PLATFORM="${{ steps.os.outputs.platform }}"
        VERSION="${{ steps.version.outputs.version }}"
        ARCHIVE_NAME="${{ steps.os.outputs.archive_name }}"
        DOWNLOAD_URL="https://github.com/realm/SwiftLint/releases/download/${VERSION}/${ARCHIVE_NAME}"

        echo "Downloading SwiftLint from $DOWNLOAD_URL..."

        if ! curl -L -f -o swiftlint.zip "$DOWNLOAD_URL"; then
          echo "Error: Download failed, please check if the version is correct"
          exit 1
        fi

        echo "Extracting..."
        unzip -q swiftlint.zip

        if [[ -f "swiftlint" ]]; then
          BINARY_PATH="swiftlint"
        elif [[ -f "swiftlint_linux/swiftlint" ]]; then
          BINARY_PATH="swiftlint_linux/swiftlint"
        elif [[ -f "portable_swiftlint/swiftlint" ]]; then
          BINARY_PATH="portable_swiftlint/swiftlint"
        else
          echo "Error: Could not find swiftlint binary"
          ls -la
          exit 1
        fi

        chmod +x "$BINARY_PATH"
        sudo mv "$BINARY_PATH" /usr/bin/swiftlint

        if ! swiftlint version; then
          echo "Error: SwiftLint installation verification failed"
          exit 1
        fi

        rm -rf swiftlint.zip swiftlint_linux portable_swiftlint 2>/dev/null || true