ENV["RACK_ENV"] = "test"
ENV["LIVETRACK_WEBHOOK_SECRET"] ||= "test-webhook-secret"

require "fileutils"
require "tmpdir"
require "minitest/autorun"
require "rack"
require "json"

# A fresh throwaway directory per test run, not the real data/ — every
# GpxStore/LiveTrackStore write app.rb's routes make during the run lands
# here and is gone when the process exits, so running the suite never
# touches (or needs to clean up after itself in) real uploaded data.
ENV["MAPTOOL_DATA_DIR"] = Dir.mktmpdir("maptool-test-data")
Minitest.after_run { FileUtils.remove_entry(ENV["MAPTOOL_DATA_DIR"]) }

$LOAD_PATH.unshift(File.expand_path("../lib", __dir__))
require_relative "../app"

# Available in every test via Minitest::Test below — fixture_path/json_body
# are generic enough to be worth having everywhere, not just in app.rb's
# own HTTP-level tests (see AppTestHelper for those).
module TestHelpers
  def fixture_path(name)
    File.join(__dir__, "fixtures", name)
  end

  def json_body(response)
    JSON.parse(response.body)
  end
end

class Minitest::Test
  include TestHelpers
end

# Only included where needed (test_app.rb) — drives app.rb's Sinatra routes
# through Rack::MockRequest, the same way every ad-hoc verification during
# development did.
module AppTestHelper
  def app
    Maptool::App
  end

  def request
    @request ||= Rack::MockRequest.new(app)
  end

  # Sinatra's session is read from env["rack.session"] (populated by the
  # Rack::Session::Cookie middleware on a real request) — setting it
  # directly here is equivalent to already having a valid session cookie,
  # without needing to drive the actual Gitea OAuth2 login flow.
  def logged_in_env(user: "testuser")
    { "rack.session" => { user: user } }
  end

  # GPX_STORE/LIVETRACK_STORE are process-wide constants pointing at the
  # one throwaway MAPTOOL_DATA_DIR (see above) — without this, uploads from
  # one test would still be there (and show up in tree/list assertions) in
  # the next one, since minitest runs a class's tests in one process.
  def teardown
    FileUtils.rm_rf(Dir.glob(File.join(Maptool::App::DATA_DIR, "gpx", "*")))
    File.write(File.join(Maptool::App::DATA_DIR, "livetrack.json"), "[]")
    super
  end

  def multipart_body(boundary, filename, content, content_type: "application/octet-stream", field_name: "file")
    "--#{boundary}\r\n" \
    "Content-Disposition: form-data; name=\"#{field_name}\"; filename=\"#{filename}\"\r\n" \
    "Content-Type: #{content_type}\r\n\r\n" \
    "#{content}\r\n" \
    "--#{boundary}--\r\n"
  end

  # POSTs a single file as a multipart/form-data upload; pass folder in
  # `path`'s query string (e.g. "/api/gpx?folder=trips") the same way the
  # real upload form does.
  def post_file(path, filename:, content:, content_type: "application/octet-stream", env: {})
    boundary = "TestBoundary#{rand(1_000_000)}"
    body = multipart_body(boundary, filename, content, content_type: content_type)
    request.post(
      path,
      input: body,
      "CONTENT_TYPE" => "multipart/form-data; boundary=#{boundary}",
      "CONTENT_LENGTH" => body.bytesize.to_s,
      **env,
    )
  end
end