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February 24, 2021 09:07
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| // Available variables: | |
| // - Machine | |
| // - interpret | |
| // - assign | |
| // - send | |
| // - sendParent | |
| // - spawn | |
| // - raise | |
| // - actions | |
| // - XState (all XState exports) | |
| const fetchMachine = Machine({ | |
| initial: "Idle", | |
| type: "parallel", | |
| states: { | |
| NewContributions: { | |
| initial: "Idle", | |
| states: { | |
| Idle: { | |
| on: { | |
| UPDATE_NEWER_THAN_COUNT_DEBOUNCED: "DebounceCount", | |
| UPDATE_NEWER_THAN_COUNT: "Counting", | |
| }, | |
| }, | |
| DebounceCount: { | |
| after: [{delay: 2000, target: "Counting"}], // CONFIG.UPDATE_COUNT_DEBOUNCE_TIME | |
| on: {UPDATE_NEWER_THAN_COUNT: "Counting"}, | |
| }, | |
| Counting: { | |
| invoke: { | |
| src: "newerThanCountQuery", | |
| onDone: [ | |
| { | |
| target: "ContributionsAvailable", | |
| actions: [assign({newerThanCount: (_, event) => event.data})], | |
| cond: (_, event) => true,//event.data > 0, | |
| }, | |
| { | |
| actions: [assign({newerThanCount: (_, event) => event.data})], | |
| target: "Idle", | |
| }, | |
| ], | |
| }, | |
| }, | |
| ContributionsAvailable: { | |
| on: { | |
| UPDATE_NEWER_THAN_COUNT_DEBOUNCED: "DebounceCount", | |
| UPDATE_NEWER_THAN_COUNT: "Counting", | |
| }, | |
| }, | |
| }, | |
| }, | |
| FetchingFromTop: { | |
| initial: "Idle", | |
| id: "FetchingFromTop", | |
| states: { | |
| Idle: { | |
| on: { | |
| FETCH_CONTRIBUTIONS_FROM_TOP: "Fetching", | |
| }, | |
| }, | |
| Fetching: { | |
| intitial: "FetchingContributions", | |
| states: { | |
| FetchingContributions: { | |
| invoke: { | |
| // spinner | |
| src: "fetchFromTop", | |
| onDone: "UpdatingCount", | |
| }, | |
| }, | |
| UpdatingCount: { | |
| invoke: { | |
| // disabled / hide | |
| src: "newerThanCountQuery", | |
| onDone: { | |
| actions: [assign({newerThanCount: (_, event) => event.data})], | |
| target: "#FetchingFromTop.Idle", | |
| }, | |
| }, | |
| }, | |
| } | |
| }, | |
| }, | |
| }, | |
| } | |
| }); |
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