ci.yml

name: CI

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
  workflow_dispatch:

env:
  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: 'true'

jobs:
  # ── Detect changed packages ──────────────────────────────────────────────────
  detect-changes:
    name: Detect changed packages
    runs-on: ubuntu-latest
    outputs:
      packages: ${{ steps.changes.outputs.packages }}
      has-changes: ${{ steps.changes.outputs.has_changes }}
    steps:
      - uses: actions/checkout@v5
        with:
          fetch-depth: 0

      - name: Detect changed packages
        id: changes
        run: |
          # Compare against the last tagged commit (not the previous push commit),
          # so that new changeset files added in prior pushes are still detected.
          # Fall back to the previous commit SHA if no tags exist yet.
          LAST_TAG=$(git describe --tags --abbrev=0 2>/dev/null || echo "")
          if [ -n "$LAST_TAG" ]; then
            PREV_SHA=$(git rev-parse "$LAST_TAG" 2>/dev/null)
          else
            PREV_SHA="${{ github.event.before }}"
            if [ "$PREV_SHA" == "0000000000000000000000000000000000000000" ]; then
              PREV_SHA=$(git rev-parse HEAD~1 2>/dev/null || git rev-parse HEAD)
            fi
          fi

          echo "Comparing against: $PREV_SHA (last tag: $LAST_TAG)"

          # Get list of changed AND added files since last tag
          CHANGES=$(git diff --name-only $PREV_SHA HEAD 2>/dev/null)
          echo "Changed files: $CHANGES"

          PACKAGES=""
          HAS_CHANGES="false"

          for FILE in $CHANGES; do
            case "$FILE" in
              packages/orca-lang/*) PACKAGES="$PACKAGES orca-lang"; HAS_CHANGES="true" ;;
              packages/runtime-ts/*) PACKAGES="$PACKAGES runtime-ts"; HAS_CHANGES="true" ;;
              packages/mcp-server/*) PACKAGES="$PACKAGES mcp-server"; HAS_CHANGES="true" ;;
              packages/runtime-python/*) PACKAGES="$PACKAGES runtime-python"; HAS_CHANGES="true" ;;
              packages/runtime-go/*) PACKAGES="$PACKAGES runtime-go"; HAS_CHANGES="true" ;;
              .changeset/*.md) HAS_CHANGES="true" ;;
            esac
          done

          # Deduplicate
          PACKAGES=$(echo "$PACKAGES" | tr ' ' '\n' | sort -u | tr '\n' ' ' | sed 's/ $//')
          echo "packages=$PACKAGES" >> "$GITHUB_OUTPUT"
          echo "has_changes=$HAS_CHANGES" >> "$GITHUB_OUTPUT"

  # ── Build and test on every push ────────────────────────────────────────────
  build:
    name: Build
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v5

      - uses: actions/setup-node@v5
        with:
          node-version: '22'

      - uses: pnpm/action-setup@v4
        with:
          version: 9

      - name: Install dependencies
        run: pnpm install --frozen-lockfile

      - name: Build packages
        run: pnpm build

      - name: Test
        run: pnpm test

  # ── Version bump (only on main after build passes) ────────────────────────
  version:
    name: Version bump
    runs-on: ubuntu-latest
    needs: [detect-changes, build]
    if: needs.detect-changes.outputs.has-changes == 'true' && github.ref == 'refs/heads/main'
    outputs:
      tag: v${{ steps.version.outputs.version }}
      has-version-bump: ${{ steps.version.outputs.bumped }}
    permissions:
      contents: write
      pull-requests: write
    steps:
      - uses: actions/checkout@v5
        with:
          fetch-depth: 0
          token: ${{ secrets.GITHUB_TOKEN }}

      - uses: actions/setup-node@v5
        with:
          node-version: '22'
          registry-url: 'https://registry.npmjs.org'

      - uses: pnpm/action-setup@v4
        with:
          version: 9

      - name: Install dependencies
        run: pnpm install --frozen-lockfile

      - name: Create changeset for npm packages
        run: |
          PACKAGES="${{ needs.detect-changes.outputs.packages }}"
          echo "Packages that changed: $PACKAGES"

          # Only create changesets for npm packages (changesets doesn't handle Python/Go)
          for PKG in $PACKAGES; do
            case "$PKG" in
              orca-lang) NAME="@orcalang/orca-lang" ;;
              runtime-ts) NAME="@orcalang/orca-runtime-ts" ;;
              mcp-server) NAME="@orcalang/orca-mcp-server" ;;
              runtime-python) continue ;;  # handled separately below
              runtime-go) continue ;;      # handled separately below
            esac
            echo "Creating changeset for npm package: $NAME"
            echo -e "---\n\"$NAME\": patch\n---\n\nBump $NAME" > .changeset/ci-${PKG}.md
          done

      - name: Run changesets version (npm packages)
        id: version
        run: |
          # Configure git
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"

          if ls .changeset/*.md 2>/dev/null | grep -v README.md > /dev/null; then
            echo "Running changesets version for npm packages..."
            pnpm changeset version

            # Get the new version (all npm packages use the same version due to fixed)
            VERSION=$(node -p "require('./packages/orca-lang/package.json').version")
            echo "version=$VERSION" >> "$GITHUB_OUTPUT"
            echo "bumped=true" >> "$GITHUB_OUTPUT"
          else
            echo "No changeset files found, skipping npm version bump"
            echo "bumped=false" >> "$GITHUB_OUTPUT"
          fi

      - name: Bump Python package version
        if: steps.version.outputs.bumped == 'true'
        run: |
          VERSION="${{ steps.version.outputs.version }}"
          echo "Bumping runtime-python to $VERSION"
          # Update pyproject.toml: replace version line
          sed -i "s/^version = \".*\"/version = \"$VERSION\"/" packages/runtime-python/pyproject.toml
          cat packages/runtime-python/pyproject.toml | grep "^version"

      - name: Bump server.json version
        if: steps.version.outputs.bumped == 'true'
        run: |
          VERSION="${{ steps.version.outputs.version }}"
          echo "Bumping server.json to $VERSION"
          sed -i "s/\"version\": \"[^\"]*\"/\"version\": \"$VERSION\"/g" server.json
          grep '"version"' server.json

      - name: Push version bump commit
        if: steps.version.outputs.bumped == 'true'
        run: |
          VERSION=${{ steps.version.outputs.version }}
          git add -A
          git commit -m "chore: bump all packages to v${VERSION}"
          git push origin HEAD:${{ github.ref_name }}

          # Tag and push
          git tag "v${VERSION}"
          git push origin "v${VERSION}"