import { VmFunction } from '@mirascript/mirascript';
import { Evaluator, Expression, Scope } from '../dist/index.js';
import { convert, lib } from '@mirascript/mirascript/subtle';

const e = new Evaluator({
    logger: {
        warn: () => void 0,
        error: () => void 0,
        info: () => void 0,
        debug: () => void 0,
    },
});
const e2 = new Evaluator({
    logger: {
        warn: () => void 0,
        error: () => void 0,
        info: () => void 0,
        debug: () => void 0,
    },
});
const s = new Scope(undefined, false);

describe('Import should work correctly', () => {
    it('can import modules', () => {
        e.import({ add: (x: number, y: number) => x + y });
        expect(e.evaluate(Expression('add(1,2)'), s)).toBe(3);
        expect(e.evaluate(Expression('add::type()'), s)).toBe('extern');
        expect(e2.evaluate(Expression('add(1,2)'), s)).toBe(null);
        expect(e2.evaluate(Expression('add::type()'), s)).toBe(null);
    });

    it('can remove modules', () => {
        e.import({ add: (x: number, y: number) => x + y });
        expect(e.evaluate(Expression('add(1,2)'), s)).toBe(3);
        e.import({ add: undefined });
        expect(e.evaluate(Expression('add(1,2)'), s)).toBe(null);
    });

    it('can replace modules', () => {
        e.import({ add: (x: number, y: number) => x + y });
        expect(e.evaluate(Expression('add::type()'), s)).toBe('extern');
        e.import({ add: VmFunction((x, y) => convert.toNumber(x, 0) + convert.toNumber(y, 0)) });
        expect(e.evaluate(Expression('add::type()'), s)).toBe('function');
    });
});