import org.hamcrest.Matchers;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

import java.time.LocalTime;
import java.time.format.DateTimeFormatter;
import java.util.Map;
import java.util.TreeMap;

@RunWith(JUnit4.class)
class SupermarketTest {

    LocalTime openTime = LocalTime.parse("12:00:00");
    LocalTime closeTime = LocalTime.parse("12:05:00");
    LocalTime newOpenTime = LocalTime.parse("07:00:00");
    LocalTime newCloseTime = LocalTime.parse("23:00:00");
    FIFOCashier Testobject1 = new FIFOCashier("Testobject1");
    Product testpropduct = new Product("A111", "Productexpansion", 21);
    Supermarket supermarket;

    @BeforeEach
    void setUp() {
        if (this.supermarket == null) {
            this.supermarket = Supermarket.importFromXML("jambi2.xml");
        }
    }

    @Test
    void openingHoursReadCorrectly() {
        LocalTime openAt = this.supermarket.getOpenTime();
        LocalTime closeAt = this.supermarket.getClosingTime();

        Assert.assertEquals(this.openTime, openAt);
        Assert.assertEquals(this.closeTime, closeAt);
    }
    @Test
    void anteMeridiemOrPostMeridiem () {
        LocalTime openAt = this.supermarket.getOpenTime();
        LocalTime closeAt = this.supermarket.getClosingTime();
        LocalTime conversedOpenAt = openAt.plusHours(12);
        LocalTime conversedCloseAt = closeAt.plusHours(12);
        Assert.assertFalse(openAt == conversedOpenAt );
        Assert.assertFalse(closeAt == conversedCloseAt );
    }

    // Checking if system handles AM and PM well (Ante meridiem en post meridiem)
    @Test
    void openingHoursUpdateCorrectly() {
        this.supermarket.setOpenTime(newOpenTime);
        this.supermarket.setClosingTime(newCloseTime);
        Assert.assertEquals(newOpenTime, this.supermarket.getOpenTime());
        Assert.assertEquals(newCloseTime, this.supermarket.getClosingTime());
    }

    @Test
    void productsTotalCorrect() {
        Assert.assertTrue( this.supermarket.getProducts().size() == 5);
    }

    @Test
    void expandProductRange() {
        int initialAmount = this.supermarket.getProducts().size();
        this.supermarket.getProducts().add(testpropduct);
        Matchers.equalTo(this.supermarket.getProducts().size() == initialAmount + 1);
        Matchers.contains(this.supermarket.getProducts(), testpropduct); Assert.assertEquals(initialAmount + 1, this.supermarket.getProducts().size());
    }

    @Test
    void clearStockTest() {
        int initialAmount = this.supermarket.getProducts().size();
        this.supermarket.getProducts().clear();
        Assert.assertEquals(0, this.supermarket.getProducts().size());
    }

    @Test
    void addRandomCustomers() {
        this.supermarket.getCustomers().clear();
        Assert.assertTrue( this.supermarket.getCustomers().size() == 0);
        int random = (int) Math.random();
        this.supermarket.addRandomCustomers(random, random);
        Assert.assertTrue(this.supermarket.getCustomers().size() == random);
    }


    @Test
    void hireEmployeeTest(){
        Assert.assertEquals(0, supermarket.getCashiers().size());
        this.supermarket.getCashiers().add(Testobject1);
        Assert.assertEquals(1, supermarket.getCashiers().size());

    }
    @Test
    void customersSetCorrectly() {
        Assert.assertEquals(2, this.supermarket.getCustomers().size());
    }

    @Test
    void calculateTotalNumberOfPurchasedItems() {
        Assert.assertEquals(3, this.supermarket.getTotalNumberOfItems());
    }

    // Re-read supermarket to clean
    @AfterEach
    void after() {
        this.supermarket = Supermarket.importFromXML("jambi2.xml");
    }


}