name: Test Files Hash Action

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

jobs:
  test:
    runs-on: ubuntu-latest
    name: Test Action

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

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

      - name: Run Unit Tests
        run: node run-tests.js

      - name: Test Action - Single File
        id: test-single
        uses: ./
        with:
          files: 'examples/sample1.txt'
          algorithm: 'sha256'

      - name: Verify Single File Output
        run: |
          echo "Hash: ${{ steps.test-single.outputs.hash }}"
          echo "File Count: ${{ steps.test-single.outputs.file-count }}"
          if [ "${{ steps.test-single.outputs.file-count }}" != "1" ]; then
            echo "❌ Expected file count 1, got ${{ steps.test-single.outputs.file-count }}"
            exit 1
          fi
          if [ -z "${{ steps.test-single.outputs.hash }}" ]; then
            echo "❌ Hash output is empty"
            exit 1
          fi
          echo "✅ Single file test passed"

      - name: Test Action - Multiple Files
        id: test-multiple
        uses: ./
        with:
          files: 'examples/*.txt'
          algorithm: 'md5'

      - name: Verify Multiple Files Output
        run: |
          echo "Hash: ${{ steps.test-multiple.outputs.hash }}"
          echo "File Count: ${{ steps.test-multiple.outputs.file-count }}"
          if [ "${{ steps.test-multiple.outputs.file-count }}" != "1" ]; then
            echo "❌ Expected file count 1, got ${{ steps.test-multiple.outputs.file-count }}"
            exit 1
          fi
          echo "✅ Multiple files test passed"

      - name: Test Action - All Examples
        id: test-all
        uses: ./
        with:
          files: 'examples/*'
          algorithm: 'sha1'

      - name: Verify All Files Output
        run: |
          echo "Hash: ${{ steps.test-all.outputs.hash }}"
          echo "File Count: ${{ steps.test-all.outputs.file-count }}"
          if [ "${{ steps.test-all.outputs.file-count }}" != "3" ]; then
            echo "❌ Expected file count 3, got ${{ steps.test-all.outputs.file-count }}"
            exit 1
          fi
          echo "✅ All files test passed"

      - name: Test Action - Different Algorithm
        id: test-sha512
        uses: ./
        with:
          files: 'README.md'
          algorithm: 'sha512'

      - name: Verify SHA512 Output
        run: |
          echo "Hash: ${{ steps.test-sha512.outputs.hash }}"
          echo "File Count: ${{ steps.test-sha512.outputs.file-count }}"
          if [ "${{ steps.test-sha512.outputs.file-count }}" != "1" ]; then
            echo "❌ Expected file count 1, got ${{ steps.test-sha512.outputs.file-count }}"
            exit 1
          fi
          # SHA512 hash should be 128 characters long
          hash_length=$(echo "${{ steps.test-sha512.outputs.hash }}" | wc -c)
          if [ $hash_length -ne 129 ]; then  # 128 + 1 for newline
            echo "❌ SHA512 hash length should be 128, got $((hash_length-1))"
            exit 1
          fi
          echo "✅ SHA512 test passed"

      - name: Test Action - Missing Files (should fail)
        id: test-missing
        continue-on-error: true
        uses: ./
        with:
          files: 'non-existent-file.txt'
          algorithm: 'sha256'

      - name: Verify Missing Files Handling
        run: |
          if [ "${{ steps.test-missing.outcome }}" == "success" ]; then
            echo "❌ Expected action to fail on missing file"
            exit 1
          fi
          echo "✅ Missing files test passed"

  test-matrix:
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-latest, windows-latest, macos-latest]
        node-version: ['18', '20']
    name: Test on ${{ matrix.os }} with Node ${{ matrix.node-version }}

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

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

      - name: Setup Node.js ${{ matrix.node-version }}
        uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.node-version }}
          cache: 'pnpm'

      - name: Test Action
        uses: ./
        with:
          files: 'examples/sample1.txt'
          algorithm: 'sha256'