-- 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)