import { test, expect } from 'vitest';
import schema from 'json-schema-shorthand';
import u from 'updeep';

import { action } from './actions.js';

import { Updux, dux } from './Updux.js';

test('set a mutation', () => {
    const dux = new Updux({
        initial: {
            x: 'potato',
        },
        actions: {
            foo: action('foo', (x) => ({ x })),
            bar: action('bar'),
        },
    });

    dux.setMutation(dux.actions.foo, (payload, action) => {
        expect(payload).toEqual({ x: 'hello ' });
        expect(action).toEqual(dux.actions.foo('hello '));
        return u({
            x: payload.x + action.type,
        });
    });

    const result = dux.reducer(undefined, dux.actions.foo('hello '));
    expect(result).toEqual({
        x: 'hello foo',
    });
});

test('mutation of a subdux', async () => {
    const bar = dux({
        actions: {
            baz: null,
        },
    });
    bar.setMutation('baz', () => (state) => ({ ...state, x: 1 }));

    const foo = dux({
        subduxes: { bar },
    });

    const store = foo.createStore();
    store.dispatch.baz();
    expect(store.getState()).toMatchObject({ bar: { x: 1 } });
});

test('strings and generators', async () => {
    const actionA = action('a');

    const foo = dux({
        actions: {
            b: null,
            a: actionA,
        },
    });

    // as a string and defined
    expect(() => foo.setMutation('a', () => {})).not.toThrow();

    // as a generator and defined
    expect(() => foo.setMutation(actionA, () => {})).not.toThrow();

    // as a string, not defined
    expect(() => foo.setMutation('c', () => {})).toThrow();

    foo.setMutation(action('d'), () => {});

    expect(foo.actions.d).toBeTypeOf('function');
});

test('splat mutation', () => {
    const myDux = new Updux({
        initial: [],
        actions: { one: null, two: null },
        mutations: {
            '*': (payload) => (state) => payload ? [...state, payload] : state,
        },
    });
    const store = myDux.createStore();
    expect(store.getState()).toEqual([]);

    store.dispatch.one(11);
    store.dispatch.two(22);

    expect(store.getState()).toEqual([11, 22]);
});