fsm: add instanout fsm parsing

Author: sputn1ck

fsm/example_fsm.md

@@ -2,11 +2,11 @@
 stateDiagram-v2
 [*] --> InitFSM: OnRequestStuff
 InitFSM
-InitFSM --> StuffFailed: OnError
 InitFSM --> StuffSentOut: OnStuffSentOut
+InitFSM --> StuffFailed: OnError
 StuffFailed
 StuffSentOut
-StuffSentOut --> StuffFailed: OnError
 StuffSentOut --> StuffSuccess: OnStuffSuccess
+StuffSentOut --> StuffFailed: OnError
 StuffSuccess
 ```

fsm/stateparser/stateparser.go

@@ -10,6 +10,7 @@ import (
 	"sort"
 
 	"github.com/lightninglabs/loop/fsm"
+	"github.com/lightninglabs/loop/instantout"
 	"github.com/lightninglabs/loop/instantout/reservation"
 )
 
@@ -49,6 +50,13 @@ func run() error {
 			return err
 		}
 
+	case "instantout":
+		instantout := &instantout.FSM{}
+		err = writeMermaidFile(fp, instantout.GetV1ReservationStates())
+		if err != nil {
+			return err
+		}
+
 	default:
 		fmt.Println("Missing or wrong argument: fsm must be one of:")
 		fmt.Println("\treservations")

instantout/fsm.md

@@ -0,0 +1,36 @@
+```mermaid
+stateDiagram-v2
+[*] --> Init: OnStart
+BuildHtlc
+BuildHtlc --> PushPreimage: OnHtlcSigReceived
+BuildHtlc --> InstantFailedOutFailed: OnError
+BuildHtlc --> InstantFailedOutFailed: OnRecover
+FailedHtlcSweep
+FinishedSweeplessSweep
+Init
+Init --> SendPaymentAndPollAccepted: OnInit
+Init --> InstantFailedOutFailed: OnError
+Init --> InstantFailedOutFailed: OnRecover
+InstantFailedOutFailed
+PublishHtlc
+PublishHtlc --> FailedHtlcSweep: OnError
+PublishHtlc --> PublishHtlc: OnRecover
+PublishHtlc --> WaitForHtlcSweepConfirmed: OnHtlcBroadcasted
+PushPreimage
+PushPreimage --> PushPreimage: OnRecover
+PushPreimage --> WaitForSweeplessSweepConfirmed: OnSweeplessSweepPublished
+PushPreimage --> InstantFailedOutFailed: OnError
+PushPreimage --> PublishHtlc: OnErrorPublishHtlc
+SendPaymentAndPollAccepted
+SendPaymentAndPollAccepted --> BuildHtlc: OnPaymentAccepted
+SendPaymentAndPollAccepted --> InstantFailedOutFailed: OnError
+SendPaymentAndPollAccepted --> InstantFailedOutFailed: OnRecover
+WaitForHtlcSweepConfirmed
+WaitForHtlcSweepConfirmed --> FinishedHtlcPreimageSweep: OnHtlcSwept
+WaitForHtlcSweepConfirmed --> WaitForHtlcSweepConfirmed: OnRecover
+WaitForHtlcSweepConfirmed --> FailedHtlcSweep: OnError
+WaitForSweeplessSweepConfirmed
+WaitForSweeplessSweepConfirmed --> FinishedSweeplessSweep: OnSweeplessSweepConfirmed
+WaitForSweeplessSweepConfirmed --> WaitForSweeplessSweepConfirmed: OnRecover
+WaitForSweeplessSweepConfirmed --> PublishHtlc: OnError
+```

instantout/reservation/reservation_fsm.md

@@ -7,9 +7,9 @@ Confirmed --> TimedOut: OnTimedOut
 Confirmed --> Confirmed: OnRecover
 Failed
 Init
-Init --> Failed: OnError
 Init --> WaitForConfirmation: OnBroadcast
 Init --> Failed: OnRecover
+Init --> Failed: OnError
 SpendBroadcasted
 SpendBroadcasted --> SpendConfirmed: OnSpendConfirmed
 SpendConfirmed

scripts/fsm-generate.sh

@@ -1,3 +1,4 @@
 #!/usr/bin/env bash
 go run ./fsm/stateparser/stateparser.go --out ./fsm/example_fsm.md --fsm example
-go run ./fsm/stateparser/stateparser.go --out ./reservation/reservation_fsm.md --fsm reservation
+go run ./fsm/stateparser/stateparser.go --out ./reservation/reservation_fsm.md --fsm reservation
+go run ./fsm/stateparser/stateparser.go --out ./instantout/fsm.md --fsm instantout