package world.bentobox.level.commands;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.anyString;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Random;
import java.util.UUID;

import org.bukkit.Bukkit;
import org.bukkit.Server;
import org.bukkit.World;
import org.bukkit.entity.Player;
import org.bukkit.inventory.ItemFactory;
import org.bukkit.inventory.meta.ItemMeta;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.powermock.api.mockito.PowerMockito;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;
import org.powermock.reflect.Whitebox;

import world.bentobox.bentobox.BentoBox;
import world.bentobox.bentobox.api.addons.GameModeAddon;
import world.bentobox.bentobox.api.commands.CompositeCommand;
import world.bentobox.bentobox.api.user.User;
import world.bentobox.bentobox.database.objects.Island;
import world.bentobox.bentobox.managers.IslandWorldManager;
import world.bentobox.bentobox.managers.IslandsManager;
import world.bentobox.bentobox.managers.LocalesManager;
import world.bentobox.bentobox.managers.PlayersManager;
import world.bentobox.level.Level;
import world.bentobox.level.LevelsManager;
import world.bentobox.level.objects.TopTenData;

/**
 * @author tastybento
 */
@RunWith(PowerMockRunner.class)
@PrepareForTest({ Bukkit.class, BentoBox.class })
public class AdminStatsCommandTest {

    @Mock
    private CompositeCommand ic;
    private UUID uuid;
    @Mock
    private User user;
    @Mock
    private IslandsManager im;
    @Mock
    private Island island;
    @Mock
    private Level addon;
    @Mock
    private World world;
    @Mock
    private IslandWorldManager iwm;
    @Mock
    private GameModeAddon gameModeAddon;
    @Mock
    private Player p;
    @Mock
    private LocalesManager lm;
    @Mock
    private PlayersManager pm;

    private AdminStatsCommand asc;
    private TopTenData ttd;
    @Mock
    private LevelsManager manager;
    @Mock
    private Server server;

    @Before
    public void setUp() {
	// Set up plugin
	BentoBox plugin = mock(BentoBox.class);
	Whitebox.setInternalState(BentoBox.class, "instance", plugin);
	User.setPlugin(plugin);
	when(addon.getPlugin()).thenReturn(plugin);

	// Addon
	when(ic.getAddon()).thenReturn(addon);
	when(ic.getPermissionPrefix()).thenReturn("bskyblock.");
	when(ic.getLabel()).thenReturn("island");
	when(ic.getTopLabel()).thenReturn("island");
	when(ic.getWorld()).thenReturn(world);
	when(ic.getTopLabel()).thenReturn("bsb");

	// IWM friendly name
	when(plugin.getIWM()).thenReturn(iwm);
	when(iwm.getFriendlyName(any())).thenReturn("BSkyBlock");

	// World
	when(world.toString()).thenReturn("world");
	when(world.getName()).thenReturn("BSkyBlock_world");

	// Player manager
	when(plugin.getPlayers()).thenReturn(pm);
	when(pm.getUser(anyString())).thenReturn(user);
	// topTen
	when(addon.getManager()).thenReturn(manager);
	// User
	uuid = UUID.randomUUID();
	when(user.getUniqueId()).thenReturn(uuid);
	when(user.getTranslation(any())).thenAnswer(invocation -> invocation.getArgument(0, String.class));

	// Bukkit
	PowerMockito.mockStatic(Bukkit.class);
	when(Bukkit.getServer()).thenReturn(server);
	// Mock item factory (for itemstacks)
	ItemFactory itemFactory = mock(ItemFactory.class);
	ItemMeta itemMeta = mock(ItemMeta.class);
	when(itemFactory.getItemMeta(any())).thenReturn(itemMeta);
	when(server.getItemFactory()).thenReturn(itemFactory);
	when(Bukkit.getItemFactory()).thenReturn(itemFactory);

	// Top ten
	ttd = new TopTenData(world);
	Map<String, Long> topten = new HashMap<>();
	Random r = new Random();
	for (int i = 0; i < 1000; i++) {
	    topten.put(UUID.randomUUID().toString(), r.nextLong(20000));
	}
	ttd.setTopTen(topten);
	asc = new AdminStatsCommand(addon, ic);
    }

    @After
    public void tearDown() {
	User.clearUsers();
    }

    /**
     * Test method for
     * {@link world.bentobox.level.commands.AdminStatsCommand#setup()}.
     */
    @Test
    public void testSetup() {
	assertEquals("bskyblock.admin.stats", asc.getPermission());
	assertFalse(asc.isOnlyPlayer());
	assertEquals("admin.stats.description", asc.getDescription());

    }

    /**
     * Test method for
     * {@link world.bentobox.level.commands.AdminStatsCommand#execute(world.bentobox.bentobox.api.user.User, java.lang.String, java.util.List)}.
     */
    @Test
    public void testExecuteUserStringListOfString() {
	assertFalse(asc.execute(user, "", List.of()));
	verify(user).sendMessage("admin.stats.title");
	verify(user).sendMessage("admin.stats.no-data");
    }

    /**
     * Test method for
     * {@link world.bentobox.level.commands.AdminStatsCommand#execute(world.bentobox.bentobox.api.user.User, java.lang.String, java.util.List)}.
     */
    @Test
    public void testExecuteUserStringListOfStringLevels() {
	Map<World, TopTenData> map = new HashMap<>();
	map.put(world, ttd);
	when(manager.getTopTenLists()).thenReturn(map);
	assertTrue(asc.execute(user, "", List.of()));
	verify(user).sendMessage("admin.stats.title");
	verify(user, never()).sendMessage("admin.stats.no-data");
    }

}