package com.plannaplan.entities;

import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;

import java.lang.reflect.Field;
import java.sql.Timestamp;
import java.util.concurrent.TimeUnit;

import org.junit.Test;

public class UserTest {

    @Test
    public void shouldResturnTokenIsNotExpired() {
        final User user = new User();
        user.setToken("testowy-bezpieczny-token");
        assertTrue(user.isCredentialsNonExpired(), "Credential shouldnt expire yet");

        long minutes = this.getMinutesDiff(user.getTokenUsageDate());

        assertTrue(minutes == 0, "Should update last token usage");

    }

    @Test
    public void shouldResturnTokenIsNotExpiredWithLessThan15minutes()
            throws NoSuchFieldException, SecurityException, IllegalArgumentException, IllegalAccessException {

        final User user = new User();
        user.setToken("testowy-bezpieczny-token");
        this.setLastTokenUsage(user, new Timestamp(System.currentTimeMillis() - (6 * 60 * 1000)));

        assertTrue(user.isCredentialsNonExpired(), "Credential shouldnt expire yet");

        final long minutes = this.getMinutesDiff(user.getTokenUsageDate());
        assertTrue(minutes == 0, "Should update last token usage");
    }

    @Test
    public void shouldResturnTokenIsExpired()
            throws NoSuchFieldException, SecurityException, IllegalArgumentException, IllegalAccessException {

        final User user = new User();
        user.setToken("testowy-bezpieczny-token");
        this.setLastTokenUsage(user, new Timestamp(System.currentTimeMillis() - (25 * 60 * 1000)));

        assertFalse(user.isCredentialsNonExpired(), "Credential should expire");

        final long diffInMilliseconds = Math
                .abs(user.getTokenUsageDate().getTime() - new Timestamp(System.currentTimeMillis()).getTime());
        final long minutes = TimeUnit.MILLISECONDS.toMinutes(diffInMilliseconds);

        assertTrue(minutes > 0, "Shouldn't update last token usage");
    }

    private long getMinutesDiff(Timestamp timestamp) {
        final long diffInMilliseconds = Math
                .abs(timestamp.getTime() - new Timestamp(System.currentTimeMillis()).getTime());
        final long minutes = TimeUnit.MILLISECONDS.toMinutes(diffInMilliseconds);
        return minutes;
    }

    private void setLastTokenUsage(User user, Timestamp timestampToSet)
            throws IllegalArgumentException, IllegalAccessException, NoSuchFieldException, SecurityException {
        Field reader = User.class.getDeclaredField("tokenUsageDate");
        reader.setAccessible(true);
        reader.set(user, timestampToSet);
    }

}