name: Update Test Badges

on:
  push:
    branches: [main]
    paths:
      - 'backend/src/**'
      - 'frontend/src/**'
      - 'backend/package.json'
      - 'frontend/package.json'

permissions:
  contents: write

jobs:
  update-badges:
    name: Update Test Count Badges
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '22'
          cache: 'npm'
          cache-dependency-path: '**/package-lock.json'

      - name: Install backend dependencies
        working-directory: backend
        run: npm ci

      - name: Install frontend dependencies
        working-directory: frontend
        run: npm ci

      - name: Run backend tests and capture count
        id: backend-tests
        working-directory: backend
        timeout-minutes: 5
        env:
          CI: true
        run: |
          OUTPUT=$(npm run test:run 2>&1) || true
          echo "$OUTPUT"
          # Extract "Tests  X passed" from output
          PASSED=$(echo "$OUTPUT" | grep -oP 'Tests\s+\K\d+(?=\s+passed)' | tail -1)
          echo "count=$PASSED" >> $GITHUB_OUTPUT

      - name: Run frontend tests and capture count
        id: frontend-tests
        working-directory: frontend
        timeout-minutes: 5
        env:
          CI: true
        run: |
          OUTPUT=$(npm run test:run 2>&1) || true
          echo "$OUTPUT"
          # Extract "Tests  X passed" from output
          PASSED=$(echo "$OUTPUT" | grep -oP 'Tests\s+\K\d+(?=\s+passed)' | tail -1)
          echo "count=$PASSED" >> $GITHUB_OUTPUT

      - name: Update README badges
        run: |
          BACKEND_COUNT="${{ steps.backend-tests.outputs.count }}"
          FRONTEND_COUNT="${{ steps.frontend-tests.outputs.count }}"
          
          echo "Backend tests: $BACKEND_COUNT"
          echo "Frontend tests: $FRONTEND_COUNT"
          
          # Only update if we got valid counts
          if [[ -n "$BACKEND_COUNT" && -n "$FRONTEND_COUNT" ]]; then
            # URL encode the slash for shields.io
            BACKEND_BADGE="https://img.shields.io/badge/Backend_Tests-${BACKEND_COUNT}%2F${BACKEND_COUNT}-brightgreen?logo=vitest"
            FRONTEND_BADGE="https://img.shields.io/badge/Frontend_Tests-${FRONTEND_COUNT}%2F${FRONTEND_COUNT}-brightgreen?logo=vitest"
            
            # Update README using sed
            sed -i "s|https://img.shields.io/badge/Backend_Tests-[^\"]*|$BACKEND_BADGE|g" README.md
            sed -i "s|https://img.shields.io/badge/Frontend_Tests-[^\"]*|$FRONTEND_BADGE|g" README.md
            
            echo "Updated badges in README.md"
          else
            echo "Could not extract test counts, skipping update"
            exit 0
          fi

      - name: Check for changes
        id: git-check
        run: |
          git diff --quiet README.md || echo "changed=true" >> $GITHUB_OUTPUT

      - name: Commit and push if changed
        if: steps.git-check.outputs.changed == 'true'
        run: |
          git config --local user.email "github-actions[bot]@users.noreply.github.com"
          git config --local user.name "github-actions[bot]"
          git add README.md
          git commit -m "chore: update test count badges [skip ci]"
          git push