-- Unit tests for web scraping functionality
describe('cp.scrape', function()
  local scrape
  local mock_responses = {}

  before_each(function()
    scrape = require('cp.scrape')

    -- Mock HTTP responses for different platforms
    mock_responses.codeforces_contest = [[
      <div class="problems">
        <div class="problem" data-problem-id="A">Problem A</div>
        <div class="problem" data-problem-id="B">Problem B</div>
      </div>
    ]]

    mock_responses.codeforces_problem = [[
      <div class="input">Sample Input</div>
      <div class="output">Sample Output</div>
    ]]
  end)

  describe('contest metadata scraping', function()
    it('scrapes Codeforces contest problems', function()
      -- Mock HTTP request, test problem list extraction
    end)

    it('scrapes Atcoder contest problems', function()
      -- Test Atcoder format
    end)

    it('scrapes CSES problem list', function()
      -- Test CSES format
    end)

    it('handles network errors gracefully', function()
      -- Test error handling for failed requests
    end)

    it('handles parsing errors gracefully', function()
      -- Test error handling for malformed HTML
    end)
  end)

  describe('problem scraping', function()
    it('extracts test cases from Codeforces problems', function()
      -- Test test case extraction
    end)

    it('handles multiple test cases correctly', function()
      -- Test multiple sample inputs/outputs
    end)

    it('handles problems with no sample cases', function()
      -- Test edge case handling
    end)

    it('extracts problem metadata (time limits, etc.)', function()
      -- Test metadata extraction
    end)
  end)

  describe('platform-specific parsing', function()
    it('handles Codeforces HTML structure', function()
      -- Test Codeforces-specific parsing
    end)

    it('handles Atcoder HTML structure', function()
      -- Test Atcoder-specific parsing
    end)

    it('handles CSES HTML structure', function()
      -- Test CSES-specific parsing
    end)
  end)

  describe('rate limiting and caching', function()
    it('respects rate limits', function()
      -- Test rate limiting behavior
    end)

    it('uses cached results when appropriate', function()
      -- Test caching integration
    end)
  end)
end)