35 lines
1.2 KiB
JavaScript
35 lines
1.2 KiB
JavaScript
import { test, expect } from 'vitest';
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/// --8<-- [start:effects-1]
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import u from '@yanick/updeep-remeda';
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import * as R from 'remeda';
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import Updux, { createAction, withPayload } from 'updux';
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const addTodoWithId = createAction('addTodoWithId', withPayload());
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const incNextId = createAction('incNextId');
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const addTodo = createAction('addTodo', withPayload());
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const todosDux = new Updux({
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initialState: { nextId: 1, todos: [] },
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actions: { addTodo, incNextId, addTodoWithId },
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selectors: {
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nextId: ({ nextId }) => nextId,
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},
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});
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todosDux.addMutation(addTodoWithId, (todo) => u({
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todos: R.concat([u(todo, { done: false })]),
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}));
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todosDux.addMutation(incNextId, () => u({ nextId: (id) => id + 1 }));
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todosDux.addEffect('addTodo', ({ getState, dispatch }) => (next) => (action) => {
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const id = getState.nextId();
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dispatch.incNextId();
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next(action);
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dispatch.addTodoWithId({ id, description: action.payload });
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});
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const store = todosDux.createStore();
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store.dispatch.addTodo('write tutorial');
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/// --8<-- [end:effects-1]
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test('basic', () => {
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expect(store.getState()).toMatchObject({
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nextId: 2,
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todos: [{ id: 1, description: 'write tutorial', done: false }],
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});
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});
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