Beat Station - State management with state machine #

Heavily inspired by xstate.js.

Go to the Beatly Book for more information.

Features compatible with xstate.js #

✅ Support simple state transition without context
✅ Listen on transition
✅ Map states
✅ Execute callback on state change
✅ Support reset
❌ Support context
- ✅ Initialize with context
  - ✅ Get current context
  - ✅ Support sync assign
  - ✅ Support async assign
  - ✅ Get current context
  - ❌ Get immutable current context
  - ❌ Support actor model
❌ Support transition with an argument for assign
❌ Support delay
❌ Support actions (fire-and-forget)
❌ Support entry and exit event
❌ Support conditional (guraded) transition
- ❌ Support custom functions
  - ❌ Support in state condition
❌ Support Transient State Nodes
❌ Support external transition
✅ Support any state transition
- ✅ BeatStation with common Beat option
❌ Support invoking services
❌ Support actors
❌ Support state.matches as a is{State}
✅ Support state.nextEvents
❌ Support state.changed
✅ Support state.done
❌ Support state.meta, state.tags
❌ Support state change history
❌ Support history json to persist
❌ Support nested state
❌ Support parallel state
- ❌ Define parallel state
  - ❌ Support multiple targets event
❌ State transition with side effect
❌ Support scxml
❌ Support stately.ai
❌ Support bootstraping
❌ Support CLI/GUI tools
❌ xstate.js compatible beat station

Final state is naturally defined which does not have any Beat annotation
state.toString(): naturally supported
state.can(event) is not needed because we have typed system
wildcard transitions and forbidden transitions are not needed because there will be no typo

❌ Support beat-statation-friendly flutter widgets
❌ Support remix.run's concept
- ❌ loader
  - ❌ action (side effect)
  - ❌ ErrorBoundary/CatchBoundary