Last active
February 6, 2020 13:25
-
-
Save Jayphen/a0ea2745bcdc2f68a3d6909d9c697e0d to your computer and use it in GitHub Desktop.
Generated by XState Viz: https://xstate.js.org/viz
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
// Available variables: | |
// - Machine | |
// - interpret | |
// - assign | |
// - send | |
// - sendParent | |
// - spawn | |
// - raise | |
// - actions | |
// - XState (all XState exports) | |
const product = { | |
variants: { | |
values: [ | |
{ | |
articleNumber: 'blah' | |
}, | |
{ | |
articleNumber: 'two' | |
}] | |
} | |
} | |
const selectedVariant = null | |
const fetchMachine = Machine({ | |
id: 'variant', | |
initial: 'unknown', | |
context: {product, selectedVariant}, | |
states: { | |
unknown: { | |
on: { | |
'': [ | |
{target: 'valid', cond: hasOneValue}, | |
{target: 'invalid.incomplete'} | |
] | |
} | |
}, | |
invalid: { | |
initial: 'incomplete', | |
on: {SELECTION: { | |
target: 'validating', | |
actions: assign({ | |
selectedVariant: (context, event) => event.selectedVariant | |
}) | |
}}, | |
states: { | |
outOfStock: {}, | |
incomplete: {} | |
} | |
}, | |
validating: { | |
on: { | |
'': [ | |
{ target: 'valid', cond: variantIsValid }, | |
{ target: 'invalid.outOfStock', cond: variantIsOOS }, | |
{ target: 'invalid.incomplete' } | |
] | |
} | |
}, | |
valid: {} | |
} | |
}); | |
function hasOneValue(ctx) { | |
return ctx.product.variants.values.length === 1 | |
} | |
function variantIsValid(ctx) { | |
console.log(ctx) | |
return ctx.selectedVariant && ctx.selectedVariant.stockStatus.buyable | |
} | |
function variantIsOOS(ctx) { | |
return ctx.selectedVariant && !ctx.selectedVariant.stockStatus.buyable | |
} | |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment