require_relative "test_helper"
require "maptool/gpx"

class GpxTest < Minitest::Test
  def test_kinds_detects_waypoints_and_tracks
    assert_equal %w[waypoint track], Maptool::Gpx.kinds(fixture_path("sample.gpx"))
  end

  def test_to_geojson_produces_a_waypoint_point_feature
    geojson = Maptool::Gpx.to_geojson(fixture_path("sample.gpx"))
    waypoint = geojson["features"].find { |f| f["properties"]["kind"] == "waypoint" }

    assert_equal "Point", waypoint["geometry"]["type"]
    assert_equal [17.2, 48.1, 200.0], waypoint["geometry"]["coordinates"]
    assert_equal "Start", waypoint["properties"]["name"]
    assert_includes waypoint["properties"]["description"], "example.com"
  end

  def test_to_geojson_produces_a_track_multilinestring_with_stats
    geojson = Maptool::Gpx.to_geojson(fixture_path("sample.gpx"))
    track = geojson["features"].find { |f| f["properties"]["kind"] == "track" }

    assert_equal "MultiLineString", track["geometry"]["type"]
    assert_equal 3, track["geometry"]["coordinates"][0].size
    assert_equal "Morning Loop", track["properties"]["name"]
    assert_operator track["properties"]["distance_meters"], :>, 0
    assert_equal 50.0, track["properties"]["elevation_gain_meters"], "200->250 is the only gain, 250->230 descent not subtracted"
    assert_equal 1200, track["properties"]["duration_secs"]
  end

  def test_invalid_xml_raises_parse_error
    path = File.join(Dir.mktmpdir, "bad.gpx")
    File.write(path, "<gpx><trk unclosed>")

    assert_raises(Maptool::Gpx::ParseError) { Maptool::Gpx.to_geojson(path) }
  end

  def test_non_gpx_root_raises_parse_error
    path = File.join(Dir.mktmpdir, "notgpx.gpx")
    File.write(path, "<html></html>")

    assert_raises(Maptool::Gpx::ParseError) { Maptool::Gpx.to_geojson(path) }
  end
end