name: Release Sourcebot

on:
  workflow_dispatch:
    inputs:
      bump_type:
        description: "Type of version bump to apply"
        required: true
        type: choice
        options:
          - patch
          - minor
          - major

concurrency:
  group: release-sourcebot
  cancel-in-progress: false

jobs:
  release:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    outputs:
      version: ${{ steps.calculate_version.outputs.version }}

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          ref: main
          fetch-depth: 0

      - name: Calculate new version
        id: calculate_version
        run: |
          # Extract current version from CHANGELOG.md
          CURRENT_VERSION=$(grep -oP '## \[\K[0-9]+\.[0-9]+\.[0-9]+' CHANGELOG.md | head -n 1)
          
          if [ -z "$CURRENT_VERSION" ]; then
              echo "Error: Could not extract current version from CHANGELOG.md"
              exit 1
          fi
          
          echo "Current version: $CURRENT_VERSION"
          
          # Parse version components
          IFS='.' read -r MAJOR MINOR PATCH <<< "$CURRENT_VERSION"
          
          # Apply bump based on input
          BUMP_TYPE="${{ inputs.bump_type }}"
          case "$BUMP_TYPE" in
            major)
              MAJOR=$((MAJOR + 1))
              MINOR=0
              PATCH=0
              ;;
            minor)
              MINOR=$((MINOR + 1))
              PATCH=0
              ;;
            patch)
              PATCH=$((PATCH + 1))
              ;;
            *)
              echo "Error: Invalid bump type: $BUMP_TYPE"
              exit 1
              ;;
          esac
          
          NEW_VERSION="$MAJOR.$MINOR.$PATCH"
          echo "New version: $NEW_VERSION"
          
          # Export to GITHUB_ENV for use in subsequent steps within this job
          echo "VERSION=$NEW_VERSION" >> $GITHUB_ENV
          
          # Export to GITHUB_OUTPUT for use in other jobs
          echo "version=$NEW_VERSION" >> $GITHUB_OUTPUT

      - name: Check if version already exists
        run: |
          if grep -q "## \[$VERSION\]" CHANGELOG.md; then
              echo "Error: Version $VERSION already exists in CHANGELOG.md"
              exit 1
          fi
          if git tag | grep -q "^v$VERSION$"; then
              echo "Error: Tag v$VERSION already exists"
              exit 1
          fi

      - name: Update CHANGELOG.md and version.ts
        run: |
          DATE=$(date +%Y-%m-%d)

          # Insert the new version header after the [Unreleased] line
          sed -i "/## \[Unreleased\]/a\\
          \\
          ## [$VERSION] - $DATE" CHANGELOG.md

          echo "Updated CHANGELOG.md with version $VERSION"
          cat CHANGELOG.md | head -n 15

          # Update version.ts
          cat > packages/shared/src/version.ts << EOF
          // This file is auto-generated by .github/workflows/release-sourcebot.yml
          export const SOURCEBOT_VERSION = "v$VERSION";
          EOF
          echo "Updated version.ts with version v$VERSION"
          cat packages/shared/src/version.ts

      - name: Configure git
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"

      - name: Commit changes
        run: |
          git add CHANGELOG.md packages/shared/src/version.ts
          git commit -m "Release v$VERSION"

      - name: Create annotated tag
        run: |
          git tag -a "v$VERSION" -m "sourcebot v$VERSION"

      - name: Push changes
        run: |
          git push origin main
          git push origin --tags

      - name: Create GitHub release
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          gh release create "v$VERSION" \
              --verify-tag \
              --generate-notes \
              --latest

  publish:
    needs: release
    uses: ./.github/workflows/ghcr-publish.yml
    with:
      version: v${{ needs.release.outputs.version }}
    permissions:
      contents: read
      packages: write
      id-token: write