name: Pull Request

on:
  pull_request:
    branches:
      - main

jobs:
  unit-tests:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'
          cache: 'npm'

      - name: Install dependencies
        run: npm ci

      - name: Run unit tests
        run: npm run test:run

  analyze-bump-type:
    runs-on: ubuntu-latest
    needs: unit-tests
    if: success()

    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Analyze commits for bump type
        id: bump_type
        run: |
          # Get the merge base and PR commits
          git fetch origin main:main 2>/dev/null || true
          MERGE_BASE=$(git merge-base HEAD main 2>/dev/null || echo "HEAD~1")

          # Analyze commits in this PR
          COMMITS=$(git log --oneline ${MERGE_BASE}..HEAD 2>/dev/null || git log --oneline -10)

          echo "Commits in this PR:"
          echo "$COMMITS"
          echo ""

          # Determine bump type
          if echo "$COMMITS" | grep -qE "(BREAKING CHANGE|!:)"; then
            BUMP="major"
            REASON="Breaking change detected in commit messages"
          elif echo "$COMMITS" | grep -qE "^feat"; then
            BUMP="minor"
            REASON="Feature commits detected"
          else
            BUMP="patch"
            REASON="Defaulting to patch (fixes or other changes)"
          fi

          echo "Suggested bump type: $BUMP"
          echo "Reason: $REASON"
          echo "bump=$BUMP" >> $GITHUB_OUTPUT
          echo "reason=$REASON" >> $GITHUB_OUTPUT

      - name: Comment bump type on PR
        uses: actions/github-script@v7
        with:
          script: |
            const bump = '${{ steps.bump_type.outputs.bump }}';
            const reason = '${{ steps.bump_type.outputs.reason }}';

            const comment = `
            ## 🏷️ Version Bump Analysis

            **Suggested bump type:** \`${bump.toUpperCase()}\`
            **Reason:** ${reason}

            This PR will bump the version to the next ${bump} version when merged.
            `;

            github.rest.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: comment
            });