Timing71 is a motorsports live timing aggregation and analysis system. This package contains common functions used by the Timing71 website, command-line application and backend services.

• messages/ contains generators for the messages that appear in the bottom third of the timing screen.
• analysis/ defines the mobx-state-tree object that provides real-time analysis and statistics.
• racing.js contains the enum-like classes Stat and FlagState used extensively throughout the other codebases.
• replay.js contains functions to read replay files, as well as the createIFrame method used to help generate them.
• services.js defines the main base class for all interfaces with upstream timing providers, Service, as well as a boilerplate HTTPPollingService class for simple cases. It also contains the main service provider registry; additional service provider classes should define a static property regex to define which source URLs should use that provider, then register themselves using the registerServiceProvider(clazz) method.
• statExtractor.js defines the StatExtractor class, a helper to extract a given Stat for a car from a Common Timing Format frame.

Other files contain miscellaneous other pieces of shared code, such as time and date handling and formatting.

A test suite using jest is provided and can be run using yarn run test.