package net.uomc.mineshaft.resources.commands;

import static java.util.stream.Collectors.toMap;

import java.util.concurrent.atomic.AtomicInteger;
import java.util.function.Function;
import java.util.stream.Collectors;

import com.mouldycheerio.dbot.CustomBot;
import com.mouldycheerio.dbot.commands.CommandDetails;
import com.mouldycheerio.dbot.util.PeelingUtils;

import net.dv8tion.jda.api.events.message.MessageReceivedEvent;
import net.uomc.mineshaft.resources.ResourceManager;

public class LeaderBoardCommand extends ResourceCommand {

    public LeaderBoardCommand(ResourceManager resourceManager) {
        super(resourceManager);
        setCommandDetails(
                CommandDetails.from("leaderboard,lb,top,best", "Lists the most valuable users", "top [@user]"));

    }

    @Override
    public void execute(MessageReceivedEvent e, CustomBot op, String[] args) {
        AtomicInteger n = new AtomicInteger(0);
        op.sendMessage(
                e, "Most Valuable Players", "*ranked by inventory value*\n\n" + String.join(
                        "\n", getResourceManager().getPrimaryResource().getMembers(e.getGuild()).stream().collect(
                                toMap(
                                        Function.identity(),
                                        user -> getResourceManager()
                                                .getResources()
                                                .stream()
                                                .map(r -> r.getValue(user, e.getGuild().getId()) * r.getValue())
                                                .reduce((long) 0, (a, b) -> a + b)))
                                .entrySet().stream()
                                .sorted(
                                        (o1, o2) -> Long.compare(o2.getValue(), o1.getValue()))
                                .limit(10)
                                .map(
                                        entry -> String.format(
                                                "%d <@%s> (**%s**)",
                                                n.incrementAndGet(),
                                                entry.getKey(),
                                                PeelingUtils.amountToString(entry.getValue())))
                                .collect(Collectors.toList())));
    }
}