import { test, expect } from 'vitest';
import Updux from './index.js';
test('basic reactions', () => {
    const foo = new Updux({
        initialState: 0,
        actions: { inc: null, reset: null },
    });
    foo.addMutation(foo.actions.inc, () => (state) => state + 1);
    foo.addMutation(foo.actions.reset, () => (state) => 0);
    foo.addReaction((api) => (state, _previous, unsubscribe) => {
        if (state < 3)
            return;
        unsubscribe();
        api.dispatch.reset();
    });
    // TODO
    //reaction: (api) => (state,previous,unsubscribe)
    const store = foo.createStore();
    store.dispatch.inc();
    expect(store.getState()).toEqual(1);
    store.dispatch.inc();
    store.dispatch.inc();
    expect(store.getState()).toEqual(0); // we've been reset
    store.dispatch.inc();
    store.dispatch.inc();
    store.dispatch.inc();
    store.dispatch.inc();
    expect(store.getState()).toEqual(4); // we've unsubscribed
});
test('subdux reactions', () => {
    const bar = new Updux({
        initialState: 0,
        actions: { inc: null, reset: null },
        selectors: {
            getIt: (x) => x,
        },
    });
    bar.addMutation(bar.actions.inc, () => (state) => {
        return state + 1;
    });
    bar.addMutation(bar.actions.reset, () => (state) => 0);
    let seen = 0;
    bar.addReaction((api) => (state, _previous, unsubscribe) => {
        seen++;
        expect(api.actions).not.toHaveProperty('notInBar');
        expect(state).toBeTypeOf('number');
        if (state < 3)
            return;
        unsubscribe();
        api.dispatch.reset();
    });
    const foo = new Updux({
        actions: { notInBar: null },
        subduxes: { bar },
    });
    const store = foo.createStore();
    store.dispatch.inc();
    expect(seen).toEqual(1);
    expect(store.getState()).toEqual({ bar: 1 });
    expect(store.getState.getIt()).toEqual(1);
    store.dispatch.inc();
    expect(seen).toEqual(2);
    store.dispatch.inc();
    expect(seen).toEqual(3);
    expect(store.getState.getIt()).toEqual(0); // we've been reset
    store.dispatch.inc();
    store.dispatch.inc();
    store.dispatch.inc();
    store.dispatch.inc();
    expect(seen).toEqual(3);
    expect(store.getState.getIt()).toEqual(4); // we've unsubscribed
});