name: Test Build Outputs

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

jobs:
  test:
    runs-on: ubuntu-latest

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

    - name: Setup Bun
      uses: oven-sh/setup-bun@v1
      with:
        bun-version: latest

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

    - name: Install dependencies
      run: bun install

    - name: Build all outputs
      run: bun run build

    - name: Verify build outputs exist
      run: |
        echo "Checking for build outputs..."
        ls -la dist/
        test -f dist/railsui-stimulus.module.js || (echo "ESM bundle missing!" && exit 1)
        test -f dist/railsui-stimulus.cjs || (echo "CJS bundle missing!" && exit 1)
        test -d dist/importmap || (echo "Importmap directory missing!" && exit 1)
        echo "✓ All build outputs present"

    - name: Run tests
      run: bun run test

    - name: Check bundled ESM file size
      run: |
        SIZE=$(wc -c < dist/railsui-stimulus.module.js)
        echo "Bundled ESM size: $SIZE bytes"
        if [ $SIZE -lt 50000 ]; then
          echo "Error: Bundled ESM file is too small (< 50KB)"
          exit 1
        fi

    - name: Check bundled CJS file size
      run: |
        SIZE=$(wc -c < dist/railsui-stimulus.cjs)
        echo "Bundled CJS size: $SIZE bytes"
        if [ $SIZE -lt 50000 ]; then
          echo "Error: Bundled CJS file is too small (< 50KB)"
          exit 1
        fi

    - name: Count importmap files
      run: |
        echo "Checking dist/importmap directory..."
        ls -la dist/importmap/ || echo "Directory does not exist!"
        echo "Counting JS files (excluding .map files)..."
        COUNT=$(find dist/importmap -name "*.js" -not -name "*.map" | wc -l | tr -d ' ')
        echo "Importmap JS files: $COUNT"
        if [ "$COUNT" != "15" ]; then
          echo "Error: Expected 15 importmap JS files, found $COUNT"
          echo "Files found:"
          find dist/importmap -name "*.js" -not -name "*.map" || true
          exit 1
        fi

    - name: Verify importmap dependencies are external
      run: |
        if ! grep -q 'import tippy from "tippy.js"' dist/importmap/railsui_tooltip.js; then
          echo "Error: tippy.js should be external in importmap build"
          exit 1
        fi
        if ! grep -q 'import flatpickr from "flatpickr"' dist/importmap/railsui_date_range_picker.js; then
          echo "Error: flatpickr should be external in importmap build"
          exit 1
        fi
        echo "✓ Dependencies are correctly external in importmap build"

    - name: Verify bundled build includes dependencies
      run: |
        if grep -q 'import tippy from "tippy.js"' dist/railsui-stimulus.module.js; then
          echo "Error: tippy.js should be bundled, not external"
          exit 1
        fi
        if grep -q 'import flatpickr from "flatpickr"' dist/railsui-stimulus.module.js; then
          echo "Error: flatpickr should be bundled, not external"
          exit 1
        fi
        echo "✓ Dependencies are correctly bundled in ESM build"

    - name: Upload build artifacts
      uses: actions/upload-artifact@v4
      if: success()
      with:
        name: build-outputs
        path: |
          dist/
          !dist/**/*.map
        retention-days: 7