require_relative "test_helper"
require "maptool/kiwix"

# No real network calls — a blank URL and a guaranteed-local connection
# refusal are both fully offline/deterministic; simulating a genuine
# reachable kiwix-serve would need spinning up a real HTTP server for what
# is, at heart, a two-line Net::HTTP wrapper — not worth it, same
# restraint LiveTrackClientTest already applies to its own network path.
class KiwixTest < Minitest::Test
  def test_reachable_is_false_for_a_blank_url
    refute Maptool::Kiwix.reachable?("")
    refute Maptool::Kiwix.reachable?(nil)
  end

  def test_reachable_is_false_when_nothing_is_listening
    refute Maptool::Kiwix.reachable?("http://127.0.0.1:1", open_timeout: 1)
  end

  # A bare TCPServer stub (not WEBrick — not a project dependency, and this
  # only needs to echo back what request line it received) confirms .proxy
  # actually builds the target URL from path + query_string correctly, not
  # just that it can complete *a* request (already covered by nothing here
  # exercising a wrong path/query, unlike .reachable? which only ever hits
  # "/").
  def test_proxy_forwards_path_and_query_and_returns_the_response
    server = TCPServer.new("127.0.0.1", 0)
    port = server.addr[1]
    request_line = nil
    thread = Thread.new do
      client = server.accept
      request_line = client.gets
      client.print("HTTP/1.1 200 OK\r\nContent-Type: text/plain\r\nContent-Length: 2\r\n\r\nhi")
      client.close
    end

    response = Maptool::Kiwix.proxy("http://127.0.0.1:#{port}", "/kiwix/search", "pattern=&latitude=1")
    thread.join
    server.close

    assert_equal "GET /kiwix/search?pattern=&latitude=1 HTTP/1.1\r\n", request_line
    assert_equal "200", response.code
    assert_equal "hi", response.body
  end

  def test_proxy_returns_nil_when_nothing_is_listening
    assert_nil Maptool::Kiwix.proxy("http://127.0.0.1:1", "/kiwix/search", "", open_timeout: 1)
  end
end