import { createMachine } from "xstate";
export const machine = createMachine(
{
id: "Analysis",
initial: "Idle",
states: {
Idle: {
on: {
"candle.process": {target: "Processing Indicators"},
},
},
"Processing Indicators": {
states: {
"Bollinger Bands Processing": {
on: {
"bb.calculated": {target: "Volatility Cycle Calculation"},
},
},
"Volatility Cycle Calculation": {
on: {
"vc.calculated": {target: "Phase Calculation"},
},
},
"Phase Calculation": {
on: {
"bb.phase.calculated": {
target: "Bollinger Bands Processed",
},
},
},
"Bollinger Bands Processed": {
type: "final",
},
"Volume Moving Average Calculation": {
on: {
"vma.calculated": {
target: "VMA Calculated",
},
},
},
"Zig Zag Calculation": {
on: {
"zigzag.calculated": {
target: "Zig Zag Processed",
},
},
},
"VMA Calculated": {
type: "final",
},
"Zig Zag Processed": {
type: "final",
},
},
type: "parallel",
onDone: {
target: "Compression Finder",
},
},
"Compression Finder": {
on: {
"Event 1": {
target: "Idle",
},
},
},
},
types: {
events: {} as
| { type: "" }
| { type: "Event 1" }
| { type: "candle.process" }
| { type: "bb.calculated" }
| { type: "vc.calculated" }
| { type: "bb.phase.calculated" }
| { type: "vma.calculated" }
| { type: "zigzag.calculated" },
},
},
);
#Can anyone explain to me why this machine don't trigger my parallel state ?
tame pine
rose sapphire
Because every region is entered simultaneously and every state you have defined is already in its final state
The dashed boxes are the states entered in a parallel state
Looks like you want 3 child states instead
tame pine
I want 3 child states indeed, but I want them to run concurently
is it possible ??
I thought it was the goal of the parallel state
rose sapphire
All the states you've defined are at the same level hierachically
tame pine
Ok, how can I have 3 "child" workflow in my parent state "Processing Indicators" then ?
I'm really struggling with this error 😅
rose sapphire
export const machine = createMachine(
{
id: "Analysis",
initial: "Idle",
states: {
Idle: {
on: {
"candle.process": {
target: "Processing Indicators",
},
},
},
"Processing Indicators": {
states: {
Bollinger: {
initial: "Bollinger Bands Processing",
states: {
"Bollinger Bands Processing": {
on: {
"bb.calculated": {
target: "Volatility Cycle Calculation",
},
},
},
"Volatility Cycle Calculation": {
on: {
"vc.calculated": {
target: "Phase Calculation",
},
},
},
"Phase Calculation": {
on: {
"bb.phase.calculated": {
target: "Bollinger Bands Processed",
},
},
},
"Bollinger Bands Processed": {
type: "final",
},
},
},
Volume: {
initial: "Volume Moving Average Calculation",
states: {
"Volume Moving Average Calculation": {
on: {
"vma.calculated": {
target: "VMA Calculated",
},
},
},
"VMA Calculated": {
type: "final",
},
},
},
"Zig Zag": {
initial: "Zig Zag Calculation",
states: {
"Zig Zag Calculation": {
on: {
"zigzag.calculated": {
target: "Zig Zag Processed",
},
},
},
"Zig Zag Processed": {
type: "final",
},
},
},
},
type: "parallel",
onDone: {
target: "Compression Finder",
},
},
"Compression Finder": {
on: {
"Event 1": {
target: "Idle",
},
},
},
},
types: {
events: {} as
| { type: "candle.process" }
| { type: "Event 1" }
| { type: "bb.calculated" }
| { type: "vc.calculated" }
| { type: "bb.phase.calculated" }
| { type: "zigzag.calculated" }
| { type: "vma.calculated" },
},
},
{
actions: {},
actors: {},
guards: {},
delays: {},
},
);
Ooooh indeed
seems pretty obvious 😅
thx for your help, it's time for me to go to sleep if I'm stuck on that type of error 🤣
rose sapphire
It was a welcome distraction from figuring out how to use the Rust borrow checker across threads, sleep is a great idea instead of going back to that!
tame pine
good luck with the borrow checker 😉
rose sapphire
tomorrow me's problem, I'm following your lead