require_relative "test_helper"
require "tempfile"

class AppTest < Minitest::Test
  include AppTestHelper

  def test_health
    response = request.get("/api/health")
    assert_equal 200, response.status
    assert_equal({ "status" => "ok" }, json_body(response))
  end

  def test_index_renders_with_asset_versioning_and_importmap
    response = request.get("/")
    assert_equal 200, response.status
    assert_match(/\/js\/map\.js\?v=\d+/, response.body)
    assert_includes response.body, "importmap"
    assert_includes response.body, "livetrack-panel"
  end

  def test_offline_tiles_reports_unavailable_when_no_pmtiles_present
    response = request.get("/api/offline-tiles")
    assert_equal({ "available" => false }, json_body(response))
  end

  def test_gnss_position_unavailable_with_no_fix
    response = request.get("/api/gnss/position", **logged_in_env)
    assert_equal({ "available" => false }, json_body(response))
  end

  def test_gnss_position_requires_login
    assert_equal 401, request.get("/api/gnss/position").status
  end

  # --- auth guard ---

  def test_write_routes_require_login
    assert_equal 401, request.post("/api/gpx").status
    assert_equal 401, request.post("/api/gpx/folder").status
    assert_equal 401, request.delete("/api/gpx/file/x.gpx").status
    assert_equal 401, request.delete("/api/gpx/folder/x").status
    assert_equal 401, request.post("/api/gpx/move").status
  end

  # --- GPX/FIT upload and the tree ---

  def test_gpx_upload_and_tree
    content = File.read(fixture_path("sample.gpx"))
    response = post_file("/api/gpx", filename: "ride.gpx", content: content, env: logged_in_env)

    assert_equal 200, response.status
    body = json_body(response)
    assert_equal ["ride.gpx"], body["paths"]
    assert_equal ["ride.gpx"], body["tree"]["children"].map { |c| c["name"] }
  end

  def test_gpx_file_returns_geojson_with_track_properties
    content = File.read(fixture_path("sample.gpx"))
    post_file("/api/gpx", filename: "ride.gpx", content: content, env: logged_in_env)

    response = request.get("/api/gpx/file/ride.gpx")
    assert_equal 200, response.status
    track = json_body(response)["features"].find { |f| f["properties"]["kind"] == "track" }
    assert_operator track["properties"]["distance_meters"], :>, 0
  end

  def test_geojson_upload_is_served_back_unchanged
    content = '{"type":"FeatureCollection","features":[{"type":"Feature","properties":{"kind":"waypoint","name":"Spot"},"geometry":{"type":"Point","coordinates":[17.1,48.1]}}]}'
    response = post_file("/api/gpx", filename: "spots.geojson", content: content, env: logged_in_env)

    assert_equal 200, response.status
    assert_equal ["spots.geojson"], json_body(response)["paths"]

    file_response = request.get("/api/gpx/file/spots.geojson")
    assert_equal 200, file_response.status
    assert_equal "Spot", json_body(file_response)["features"][0]["properties"]["name"]
  end

  def test_download_of_a_converted_gpx_names_it_gpx_geojson
    content = File.read(fixture_path("sample.gpx"))
    post_file("/api/gpx", filename: "ride.gpx", content: content, env: logged_in_env)

    response = request.get("/api/gpx/file/ride.gpx?download=geojson", **logged_in_env)
    assert_equal 200, response.status
    assert_includes response.headers["Content-Disposition"], 'filename="ride.gpx.geojson"'
  end

  def test_download_of_a_native_geojson_keeps_its_own_name
    content = '{"type":"FeatureCollection","features":[]}'
    post_file("/api/gpx", filename: "spots.geojson", content: content, env: logged_in_env)

    response = request.get("/api/gpx/file/spots.geojson?download=geojson", **logged_in_env)
    assert_equal 200, response.status
    assert_includes response.headers["Content-Disposition"], 'filename="spots.geojson"'
  end

  def test_download_of_the_original_file_serves_it_unconverted
    content = File.read(fixture_path("sample.gpx"))
    post_file("/api/gpx", filename: "ride.gpx", content: content, env: logged_in_env)

    response = request.get("/api/gpx/file/ride.gpx?download=original", **logged_in_env)
    assert_equal 200, response.status
    assert_includes response.headers["Content-Disposition"], 'filename="ride.gpx"'
    assert_equal content, response.body
  end

  def test_download_requires_login
    content = File.read(fixture_path("sample.gpx"))
    post_file("/api/gpx", filename: "ride.gpx", content: content, env: logged_in_env)

    assert_equal 401, request.get("/api/gpx/file/ride.gpx?download=geojson").status
    assert_equal 401, request.get("/api/gpx/file/ride.gpx?download=original").status
    # Plain viewing (no ?download) stays open to anyone.
    assert_equal 200, request.get("/api/gpx/file/ride.gpx").status
  end

  def test_unparseable_gpx_returns_422
    post_file("/api/gpx", filename: "bad.gpx", content: "<gpx><trk unclosed>", env: logged_in_env)

    response = request.get("/api/gpx/file/bad.gpx")
    assert_equal 422, response.status
  end

  def test_fit_upload_is_parsed_the_same_as_gpx
    fit_bytes = build_fit_file([[100_000_000, 200_000_000], [100_000_100, 200_000_100]])
    response = post_file("/api/gpx", filename: "activity.fit", content: fit_bytes, env: logged_in_env)

    assert_equal 200, response.status
    assert_equal ["activity.fit"], json_body(response)["paths"]

    geojson = json_body(request.get("/api/gpx/file/activity.fit"))
    assert_equal 2, geojson["features"][0]["geometry"]["coordinates"][0].size
  end

  def test_zip_upload_expands_into_its_track_entries_and_skips_the_rest
    zip_bytes = build_zip(
      "one.gpx" => File.read(fixture_path("sample.gpx")),
      "two.fit" => build_fit_file([[100_000_000, 200_000_000]]),
      "readme.txt" => "not a track file",
    )
    response = post_file("/api/gpx?folder=imported", filename: "export.zip", content: zip_bytes,
                          content_type: "application/zip", env: logged_in_env)

    assert_equal 200, response.status
    paths = json_body(response)["paths"]
    assert_equal ["imported/one.gpx", "imported/two.fit"].sort, paths.sort

    names = json_body(request.get("/api/gpx/tree"))["children"]
      .find { |c| c["name"] == "imported" }["children"].map { |c| c["name"] }
    refute_includes names, "readme.txt"
  end

  def test_corrupt_zip_is_rejected
    response = post_file("/api/gpx", filename: "bad.zip", content: "not a zip", content_type: "application/zip", env: logged_in_env)
    assert_equal 400, response.status
  end

  def test_folder_create_move_and_delete
    content = File.read(fixture_path("sample.gpx"))
    post_file("/api/gpx", filename: "ride.gpx", content: content, env: logged_in_env)

    create = request.post("/api/gpx/folder?path=trips", **logged_in_env)
    assert_equal 200, create.status

    move = request.post("/api/gpx/move?from=ride.gpx&to_folder=trips", **logged_in_env)
    assert_equal 200, move.status
    assert_equal "trips/ride.gpx", json_body(move)["path"]

    delete = request.delete("/api/gpx/file/trips/ride.gpx", **logged_in_env)
    assert_equal 200, delete.status
    assert_empty json_body(delete)["tree"]["children"].find { |c| c["name"] == "trips" }["children"]
  end

  def test_invalid_folder_path_is_rejected
    response = request.post("/api/gpx/folder?path=..%2F..%2Fescape", **logged_in_env)
    assert_equal 400, response.status
  end

  # --- LiveTrack webhook ---

  def test_livetrack_webhook_requires_the_configured_secret
    response = request.post("/api/livetrack/session", params: { secret: "wrong", session_id: "abc" })
    assert_equal 403, response.status
  end

  def test_livetrack_webhook_stores_session_id_and_token
    response = request.post(
      "/api/livetrack/session",
      params: { secret: ENV.fetch("LIVETRACK_WEBHOOK_SECRET"), session_id: "abc123", session_token: "tok" },
    )
    assert_equal 200, response.status

    sessions = json_body(request.get("/api/livetrack/sessions"))["sessions"]
    assert_equal "abc123", sessions.first["id"]
    assert_equal "tok", sessions.first["token"]
  end

  def test_livetrack_track_unknown_session_is_404
    response = request.get("/api/livetrack/sessions/does-not-exist/track")
    assert_equal 404, response.status
  end

  # LiveTrackClient's actual page-fetching/parsing has its own tests
  # (test_livetrack_client.rb, no network) and was checked against real
  # Garmin sessions by hand during development — this only covers the
  # route's own guard clause, not the success path, since exercising that
  # here would mean a real network call in every test run.
  def test_livetrack_track_session_without_token_is_404
    request.post("/api/livetrack/session", params: { secret: ENV.fetch("LIVETRACK_WEBHOOK_SECRET"), session_id: "no-token" })

    response = request.get("/api/livetrack/sessions/no-token/track")
    assert_equal 404, response.status
  end

  private

  def le32(n)
    [n].pack("l<")
  end

  # Mirrors FitTest#build_fit — a minimal single-definition FIT file, just
  # enough to exercise the upload -> store -> parse path end to end.
  def build_fit_file(records)
    definition = [0, 0].pack("CC") + [20].pack("S<") + [2].pack("C") +
                 [0, 4, 0x85].pack("C3") + [1, 4, 0x85].pack("C3")
    definition_header = [0b01000000].pack("C")
    data = records.map { |lat, lon| [0b00000000].pack("C") + le32(lat) + le32(lon) }.join
    body = definition_header + definition + data
    header = [12, 16, 0, 0].pack("C2S<") + le32(body.bytesize) + ".FIT"
    header + body + "\x00\x00"
  end

  def build_zip(entries)
    require "zip"
    Tempfile.create(["test", ".zip"]) do |file|
      file.close
      Zip::File.open(file.path, create: true) do |zip|
        entries.each { |name, content| zip.get_output_stream(name) { |f| f.write(content) } }
      end
      File.binread(file.path)
    end
  end
end