name: Release - VS Code Extension

on:
  push:
    branches: [main]
    paths:
      - 'extensions/vscode/**'
  workflow_dispatch:

permissions:
  contents: write

jobs:
  publish:
    name: Publish to VS Code Marketplace
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6
        with:
          fetch-depth: 0

      - name: Detect version bump
        id: version
        run: |
          CURRENT=$(node -p "require('./extensions/vscode/package.json').version")
          PREVIOUS=$(git show HEAD~1:extensions/vscode/package.json 2>/dev/null | jq -r '.version' 2>/dev/null || echo "")
          echo "current=$CURRENT" >> "$GITHUB_OUTPUT"
          echo "previous=$PREVIOUS" >> "$GITHUB_OUTPUT"
          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
            echo "Manual dispatch; publishing $CURRENT"
            echo "bumped=true" >> "$GITHUB_OUTPUT"
          elif [ -z "$PREVIOUS" ]; then
            echo "First-time addition of extensions/vscode; skipping auto-publish (publish manually once, then future bumps auto-release)."
            echo "bumped=false" >> "$GITHUB_OUTPUT"
          elif [ "$CURRENT" != "$PREVIOUS" ]; then
            echo "Version bumped $PREVIOUS -> $CURRENT; publishing"
            echo "bumped=true" >> "$GITHUB_OUTPUT"
          else
            echo "Version unchanged ($CURRENT); skipping publish."
            echo "bumped=false" >> "$GITHUB_OUTPUT"
          fi

      - uses: actions/setup-node@v6
        if: steps.version.outputs.bumped == 'true'
        with:
          node-version: '20'
          cache: 'npm'
          cache-dependency-path: extensions/vscode/package-lock.json

      - name: Install dependencies
        if: steps.version.outputs.bumped == 'true'
        working-directory: extensions/vscode
        run: npm ci

      - name: Publish to Marketplace
        if: steps.version.outputs.bumped == 'true'
        working-directory: extensions/vscode
        env:
          VSCE_PAT: ${{ secrets.VSCE_PAT }}
        run: npx vsce publish

      - name: Tag release
        if: steps.version.outputs.bumped == 'true'
        run: |
          TAG="vscode@${{ steps.version.outputs.current }}"
          git config user.name "github-actions[bot]"
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
          if ! git rev-parse "$TAG" >/dev/null 2>&1; then
            git tag "$TAG"
            git push origin "$TAG"
          fi