name: Check Claude Desktop Version
# IMPORTANT: This workflow requires a Personal Access Token (PAT) to function properly
# Create a PAT with 'repo' and 'workflow' scopes and add it as a secret named GH_PAT
# Without it, the workflow cannot update variables and will fail to prevent duplicate releases

on:
  schedule:
    # Run daily at 1 AM UTC
    - cron: "0 1 * * *"
  workflow_dispatch: # Allow manual triggering for testing

permissions:
  contents: write  # For creating tags and releases

jobs:
  check-version:
    runs-on: ubuntu-latest
    
    steps:
    - name: Checkout repository
      uses: actions/checkout@v4
      with:
        fetch-depth: 0 # Need full history for tags
        token: ${{ secrets.GH_PAT }} # PAT required for pushing tags
    
    - name: Set up environment
      run: |
        sudo apt-get update
        sudo apt-get install -y p7zip-full wget
    
    - name: Download and check Claude version
      id: check_version
      run: |
        # Download URLs for both architectures (we'll check amd64)
        CLAUDE_DOWNLOAD_URL="https://storage.googleapis.com/osprey-downloads-c02f6a0d-347c-492b-a752-3e0651722e97/nest-win-x64/Claude-Setup-x64.exe"
        
        echo "Downloading Claude Desktop installer to check version..."
        WORK_DIR=$(mktemp -d)
        cd "$WORK_DIR"
        
        if ! wget -q -O Claude-Setup-x64.exe "$CLAUDE_DOWNLOAD_URL"; then
          echo "Failed to download Claude Desktop installer"
          exit 1
        fi
        
        echo "Extracting installer..."
        EXTRACT_DIR="$WORK_DIR/extract"
        mkdir -p "$EXTRACT_DIR"
        
        if ! 7z x -y Claude-Setup-x64.exe -o"$EXTRACT_DIR" > /dev/null 2>&1; then
          echo "Failed to extract installer"
          exit 1
        fi
        
        cd "$EXTRACT_DIR"
        NUPKG_FILE=$(find . -maxdepth 1 -name "AnthropicClaude-*.nupkg" | head -1)
        
        if [ -z "$NUPKG_FILE" ]; then
          echo "Could not find AnthropicClaude nupkg file"
          exit 1
        fi
        
        # Extract version from nupkg filename
        CLAUDE_VERSION=$(echo "$NUPKG_FILE" | grep -oP 'AnthropicClaude-\K[0-9]+\.[0-9]+\.[0-9]+(?=-full|-arm64-full)')
        
        if [ -z "$CLAUDE_VERSION" ]; then
          echo "Could not extract version from nupkg filename"
          exit 1
        fi
        
        echo "Detected Claude Desktop version: $CLAUDE_VERSION"
        echo "claude_version=$CLAUDE_VERSION" >> $GITHUB_OUTPUT
        
        # Clean up
        cd /
        rm -rf "$WORK_DIR"
    
    - name: Check if update needed
      id: check_update
      env:
        GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      run: |
        CLAUDE_VERSION="${{ steps.check_version.outputs.claude_version }}"
        REPO_VERSION="${{ vars.REPO_VERSION }}"
        STORED_CLAUDE_VERSION="${{ vars.CLAUDE_DESKTOP_VERSION }}"
        
        echo "Current stored Claude version: $STORED_CLAUDE_VERSION"
        echo "Detected Claude version: $CLAUDE_VERSION"
        echo "Repository version: $REPO_VERSION"
        
        if [ "$CLAUDE_VERSION" != "$STORED_CLAUDE_VERSION" ]; then
          echo "New Claude Desktop version detected!"
          echo "update_needed=true" >> $GITHUB_OUTPUT
          
          # Construct the new tag
          NEW_TAG="v${REPO_VERSION}+claude${CLAUDE_VERSION}"
          echo "new_tag=$NEW_TAG" >> $GITHUB_OUTPUT
          echo "New tag will be: $NEW_TAG"
        else
          echo "Claude Desktop version unchanged"
          echo "update_needed=false" >> $GITHUB_OUTPUT
        fi
    
    - name: Update version variable and create tag
      if: steps.check_update.outputs.update_needed == 'true'
      env:
        GH_TOKEN: ${{ secrets.GH_PAT }}
      run: |
        CLAUDE_VERSION="${{ steps.check_version.outputs.claude_version }}"
        NEW_TAG="${{ steps.check_update.outputs.new_tag }}"
        
        # Check if we have a PAT
        if [ -z "$GH_TOKEN" ]; then
          echo "❌ Error: GH_PAT secret is not configured"
          echo "This workflow requires a Personal Access Token to update repository variables"
          echo "Please create a PAT with 'repo' and 'workflow' scopes and add it as GH_PAT secret"
          exit 1
        fi
        
        echo "Updating CLAUDE_DESKTOP_VERSION variable to $CLAUDE_VERSION"
        gh variable set CLAUDE_DESKTOP_VERSION --body "$CLAUDE_VERSION"
        
        echo "Creating and pushing new tag: $NEW_TAG"
        
        # Configure git
        git config user.name "github-actions[bot]"
        git config user.email "github-actions[bot]@users.noreply.github.com"
        
        # Create annotated tag
        git tag -a "$NEW_TAG" -m "Update to Claude Desktop $CLAUDE_VERSION"
        
        # Push the tag
        git push origin "$NEW_TAG"
        
        echo "Successfully created tag $NEW_TAG"
    
    - name: Create release
      if: steps.check_update.outputs.update_needed == 'true'
      env:
        GH_TOKEN: ${{ secrets.GH_PAT }}
      run: |
        NEW_TAG="${{ steps.check_update.outputs.new_tag }}"
        CLAUDE_VERSION="${{ steps.check_version.outputs.claude_version }}"
        
        # Create release notes using heredoc
        RELEASE_NOTES=$(cat <<EOF
        ## Claude Desktop Update
        
        This release updates the packaged Claude Desktop version to **$CLAUDE_VERSION**.
        
        ### What's Changed
        - Updated Claude Desktop to version $CLAUDE_VERSION
        
        ### Installation
        Download the appropriate package for your architecture from the assets below.
        
        ---
        *This release was automatically generated when a new Claude Desktop version was detected.*
        EOF
        )
        
        # Create the release
        gh release create "$NEW_TAG" \
          --title "Release $NEW_TAG" \
          --notes "$RELEASE_NOTES" \
          --latest
        
        echo "Release created for $NEW_TAG"