package com.luticate.utils;

import com.luticate.utils.business.LuConsumer;
import com.luticate.utils.business.LuConverter;
import com.luticate.utils.business.LuPromise;
import com.luticate.utils.dbo.LuPromiseError;
import com.luticate.utils.dbo.LuVoidDbo;

import org.junit.Test;

import static org.junit.Assert.*;

/**
 * Created by robin on 10/22/16.
 */

public class PromiseTest {

    @Test
    public void resolveTest()
    {
        LuPromise<Integer> promise = new LuPromise<>();
        final int[] results = new int[]{42, 24, 4242};

        promise.then(new LuConsumer<Integer>() {
            @Override
            public void execute(Integer data) {
                assertEquals(42, results[0]);
                assertEquals(24, results[1]);
                assertEquals(4242, results[2]);
                ++results[0];
            }
        }, new LuConsumer<LuPromiseError>() {
            @Override
            public void execute(LuPromiseError data) {
                assertEquals(42, results[0]);
                assertEquals(24, results[1]);
                assertEquals(4242, results[2]);
                --results[0];
            }
        }).then(new LuConsumer<Integer>() {
            @Override
            public void execute(Integer data) {
                assertEquals(43, results[0]);
                assertEquals(24, results[1]);
                assertEquals(4242, results[2]);
                ++results[1];
            }
        }, new LuConsumer<LuPromiseError>() {
            @Override
            public void execute(LuPromiseError data) {
                assertEquals(41, results[0]);
                assertEquals(24, results[1]);
                assertEquals(4242, results[2]);
                --results[1];
            }
        });
        assertEquals(42, results[0]);
        assertEquals(24, results[1]);
        assertEquals(4242, results[2]);
        assertEquals(LuPromise.LuPromiseStatus.Running, promise.getStatus());
        assertNull(promise.getData());

        promise.resolve(4224).then(new LuConsumer<Integer>() {
            @Override
            public void execute(Integer data) {
                assertEquals(43, results[0]);
                assertEquals(25, results[1]);
                assertEquals(4242, results[2]);
                ++results[2];
            }
        }, new LuConsumer<LuPromiseError>() {
            @Override
            public void execute(LuPromiseError data) {
                assertEquals(41, results[0]);
                assertEquals(23, results[1]);
                assertEquals(4242, results[2]);
                --results[2];
            }
        });
        assertEquals(43, results[0]);
        assertEquals(25, results[1]);
        assertEquals(4243, results[2]);
        assertEquals(LuPromise.LuPromiseStatus.Resolved, promise.getStatus());
        assertEquals(4224, promise.getData().intValue());
    }

    @Test
    public void rejectTest()
    {
        LuPromise<Integer> promise = new LuPromise<>();
        final int[] results = new int[]{42, 24, 4242};

        promise.then(new LuConsumer<Integer>() {
            @Override
            public void execute(Integer data) {
                assertEquals(42, results[0]);
                assertEquals(24, results[1]);
                assertEquals(4242, results[2]);
                ++results[0];
            }
        }, new LuConsumer<LuPromiseError>() {
            @Override
            public void execute(LuPromiseError data) {
                assertEquals(42, results[0]);
                assertEquals(24, results[1]);
                assertEquals(4242, results[2]);
                --results[0];
            }
        }).then(new LuConsumer<Integer>() {
            @Override
            public void execute(Integer data) {
                assertEquals(43, results[0]);
                assertEquals(24, results[1]);
                assertEquals(4242, results[2]);
                ++results[1];
            }
        }, new LuConsumer<LuPromiseError>() {
            @Override
            public void execute(LuPromiseError data) {
                assertEquals(41, results[0]);
                assertEquals(24, results[1]);
                assertEquals(4242, results[2]);
                --results[1];
            }
        });
        assertEquals(42, results[0]);
        assertEquals(24, results[1]);
        assertEquals(4242, results[2]);
        assertEquals(LuPromise.LuPromiseStatus.Running, promise.getStatus());
        assertNull(promise.getData());

        promise.reject(null).then(new LuConsumer<Integer>() {
            @Override
            public void execute(Integer data) {
                assertEquals(43, results[0]);
                assertEquals(25, results[1]);
                assertEquals(4242, results[2]);
                ++results[2];
            }
        }, new LuConsumer<LuPromiseError>() {
            @Override
            public void execute(LuPromiseError data) {
                assertEquals(41, results[0]);
                assertEquals(23, results[1]);
                assertEquals(4242, results[2]);
                --results[2];
            }
        });
        assertEquals(41, results[0]);
        assertEquals(23, results[1]);
        assertEquals(4241, results[2]);
        assertEquals(LuPromise.LuPromiseStatus.Failed, promise.getStatus());
        assertNull(promise.getData());
    }

    @Test
    public void mapTest()
    {
        LuPromise<Integer> promise = new LuPromise<>();
        final int[] result = new int[1];
        promise.map(new LuConverter<Integer, Boolean>() {
            @Override
            public Boolean convert(Integer data) {
                return data == 42;
            }
        }).then(new LuConsumer<Boolean>() {
            @Override
            public void execute(Boolean data) {
                result[0] = data ? 4242 : 2424;
            }
        }, new LuConsumer<LuPromiseError>() {
            @Override
            public void execute(LuPromiseError data) {
                result[0] = 2442;
            }
        });
        promise.resolve(42);
        assertEquals(result[0], 4242);
    }
}