package net.uomc.mineshaft;


import java.util.ArrayList;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import java.util.function.Consumer;
import java.util.stream.Collectors;

import org.json.JSONObject;

import com.mouldycheerio.dbot.CustomBot;
import com.mouldycheerio.dbot.commands.CommandDetails;
import com.mouldycheerio.dbot.commands.cooldowns.CooldownCommand;
import com.mouldycheerio.dbot.util.EventWaiter;
import com.mouldycheerio.dbot.util.PeelingUtils;
import com.vdurmont.emoji.EmojiParser;

import net.dv8tion.jda.api.EmbedBuilder;
import net.dv8tion.jda.api.entities.Member;
import net.dv8tion.jda.api.entities.Message;
import net.dv8tion.jda.api.entities.channel.middleman.GuildMessageChannel;
import net.dv8tion.jda.api.entities.channel.middleman.MessageChannel;
import net.dv8tion.jda.api.entities.emoji.Emoji;
import net.dv8tion.jda.api.events.message.MessageReceivedEvent;
import net.uomc.mineshaft.resources.ResourceManager;

public class MineCommand extends CooldownCommand {

    private static final String DROP_END_MESSAGE2 = "Too late!";
    private static final String DROP_END_MESSAGE = "The ore has disappeared!";
    private static final long DROP_DURATION_SECONDS = 90;
    private static final String DROP_TITLE = "An ore has spawned!";
    private static final String DROP_DESCRIPTION = "Say `%s` to mine it!\nHurry though, it will be gone %s";
    private static final double COAL_SPAWN_AMOUNT = 64;
    private static final double IRON_SPAWN_AMOUNT = 8;
    private static final double COPPER_SPAWN_AMOUNT = 8;
    private static final double LAPIS_SPAWN_AMOUNT = 16;
    private static final double REDSTONE_SPAWN_AMOUNT = 16;
    private static final double GOLD_SPAWN_AMOUNT = 8;
    private static final double EMERALD_SPAWN_AMOUNT = 1;
    private static final double DIAMOND_SPAWN_AMOUNT = 1;
    private static final double OBSIDIAN_SPAWN_AMOUNT = 1;
    private static final double XP_SPAWN_AMOUNT = 1000;

    private Map<String, String> ores;
    private List<String> oresList;

    private Mineshaft bot;

    protected MineCommand(Mineshaft bot) {
        super(bot);
        this.bot = bot;

        setCooldown(15l * 1000l);
        setDetails(CommandDetails.from("mine", "mine diamonds"));

        this.ores = loadOreImages();
        oresList = loadOreOrder();
    }

    public List<String> loadOreOrder() {
        // lololol no
        return List.of(
                "coal",
                "copper",
                "iron",
                "lapis",
                "redstone",
                "gold",
                "diamond",
                "emerald",
                "obsidian"
                );
    }

    public Map<String, String> loadOreImages() {
        Map<String, String> ores = new LinkedHashMap<String, String>();
        JSONObject config = bot.getConfig();

        if (!config.has("mineshaft"))
            return ores;

        JSONObject mineshaftConfig = config.getJSONObject("mineshaft");
        if (!mineshaftConfig.has("ores"))
            return ores;

        JSONObject oresConfig = mineshaftConfig.getJSONObject("ores");
        oresConfig.keySet().forEach(k -> ores.put(k, oresConfig.getString(k)));
        return ores;
    }

    public  MineshaftItem getOre(int pickaxe) {
        double random = Math.random();
        int maxOre = levelToMaxOre(pickaxe);

        int i = (int) Math.floor(Math.pow(random, 2) * maxOre);
        String oreName = oresList.get(i);
        MineshaftItem ore = MineshaftItem.valueOf(oreName.toUpperCase());
        return ore;
    }

    @Override
    public boolean trigger(MessageReceivedEvent e) {

        int pickaxe = bot.getPickaxes().getPickaxeLevel(e.getMember());
        MineshaftItem ore = getOre(pickaxe);
        int i = oresList.indexOf(ore.toString().toLowerCase());

        spawnDrop(e.getChannel(), ore, i, m -> {});
        e.getMessage().addReaction(Emoji.fromUnicode(EmojiParser.parseToUnicode(":pick:"))).queue();
        return true;
    }

    private int levelToMaxOre(int pickaxe) {
        switch (pickaxe) {
            case 0: // stone pickaxe
                return 2; // copper
            case 1: // copper pickaxe
                return 4; // lapis
            case 2: // iron pickaxe
                return 6; // gold
            case 3: // gold pickaxe
                return 8; // diamond
            case 4: // diamond pickaxe
                return 9; // obsidian
                // TODO for obsidian u can make nether portal
        }
        return 9;
    }

    public void spawnDrop(MessageChannel channel, MineshaftItem ore, int oreLevel, Consumer<MessageChannel> then) {
        sendDrop(channel, ore, m -> {
            EventWaiter eventWaiter = new EventWaiter();
            channel.getJDA().addEventListener(eventWaiter);

            eventWaiter.waitForEvent(MessageReceivedEvent.class,
                    e -> {
                        if (!e.getMessage().getContentRaw().equalsIgnoreCase(getPickString(ore)))
                            return false;

                        if (oreLevel > levelToMaxOre(bot.getPickaxes().getPickaxeLevel(e.getMember())))
                            return false;

                        return true;
                    }, e -> {
                        awardDrop(e.getMember(), channel, ore, message -> {
                        cleanup(channel, m, ore);
                        then.accept(channel);
                        message.delete().queueAfter(5, TimeUnit.SECONDS);
                    });
            }, DROP_DURATION_SECONDS, TimeUnit.SECONDS, () -> {
                cleanup(channel, m, ore);
                endDrop(m, ore);
            });

        });
    }

    public void cleanup(MessageChannel channel, Message message, MineshaftItem ore) {
        message.delete().queue();

        channel.getHistoryAfter(message, 100).queueAfter(5, TimeUnit.SECONDS, h -> {
            ArrayList<Message> msgs = new ArrayList<Message>();
            h.getRetrievedHistory().forEach(m -> {
                if (m.getContentRaw().equalsIgnoreCase(getPickString(ore))) {
                    msgs.add(m);
                }
            });
            PeelingUtils.bulkDelte(channel, msgs);
        });
        ;
    }

    public void sendDrop(MessageChannel channel, MineshaftItem ore, Consumer<Message> callback) {
        EmbedBuilder embedBuilder = new EmbedBuilder();

        embedBuilder.setColor(bot.getColor());
        embedBuilder.setImage(getOreUrl(ore));

        embedBuilder.setTitle(String.format(DROP_TITLE));
        embedBuilder.setDescription(String.format(DROP_DESCRIPTION, getPickString(ore), PeelingUtils.formatTimeRelativeFromNow(DROP_DURATION_SECONDS * 1000l)));

        channel.sendMessageEmbeds(embedBuilder.build()).queue(callback);

    }

    public void awardDrop(Member member, MessageChannel channel, MineshaftItem ore, Consumer<Message> callback) {

        EmbedBuilder embedBuilder = new EmbedBuilder();
        embedBuilder.setColor(bot.getColor());

        Map<MineshaftItem, Long> awards = getAwards(member, ore);
        int fortune = bot.getPickaxes().getPickaxeFortune(member);
        if (fortune > 0) {
            bot.multiply(awards, fortune + 1);
        }

        bot.addItems(member, awards);
        String awardsList = bot.createItemList(awards, "+%s");

        embedBuilder.setDescription(member.getAsMention() + " mined the ore!\n " + awardsList);

        channel.sendMessageEmbeds(embedBuilder.build()).queue(callback);
    }

    public void endDrop(Message message, MineshaftItem ore) {

        EmbedBuilder embedBuilder = new EmbedBuilder();

        embedBuilder.setColor(bot.color);
        embedBuilder.setTitle(DROP_END_MESSAGE);
        embedBuilder.setDescription(DROP_END_MESSAGE2);

        message.editMessageEmbeds(embedBuilder.build()).queue(m -> {
            message.delete().queueAfter(1, TimeUnit.MINUTES);
        });
    }

    public String getOreUrl(MineshaftItem ore) {
        String oreName = ore.toString();
        if (ores.containsKey(oreName))
            return ores.get(oreName);

        if (ores.size() == 0)
            return "";

        return ores.entrySet().stream().findFirst().get().getValue();
    }

    public String getPickString(MineshaftItem ore) {
        return "mine " + ore.toString();
    }

    public Map<MineshaftItem, Long> getAwards(Member member, MineshaftItem ore) {
        Map<MineshaftItem, Long> award = new HashMap<>();
        switch (ore) {
            case COAL:
                award.put(MineshaftItem.COAL, (long) Math.ceil(Math.random() * COAL_SPAWN_AMOUNT));
                award.put(MineshaftItem.XP, (long) Math.ceil(Math.random() * XP_SPAWN_AMOUNT));
                break;
            case IRON:
                award.put(MineshaftItem.IRON, (long) Math.ceil(Math.random() * IRON_SPAWN_AMOUNT));
                break;
            case COPPER:
                award.put(MineshaftItem.COPPER, (long) Math.ceil(Math.random() * COPPER_SPAWN_AMOUNT));
                break;
            case LAPIS:
                award.put(MineshaftItem.LAPIS, (long) Math.ceil(Math.random() * LAPIS_SPAWN_AMOUNT));
                award.put(MineshaftItem.XP, (long) Math.ceil(Math.random() * XP_SPAWN_AMOUNT * 2l));
                break;
            case REDSTONE:
                award.put(MineshaftItem.REDSTONE, (long) Math.ceil(Math.random() * REDSTONE_SPAWN_AMOUNT));
                award.put(MineshaftItem.XP, (long) Math.ceil(Math.random() * XP_SPAWN_AMOUNT * 5l));
                break;
            case GOLD:
                award.put(MineshaftItem.GOLD, (long) Math.ceil(Math.random() * GOLD_SPAWN_AMOUNT));
                break;
            case EMERALD:
                award.put(MineshaftItem.EMERALD, (long) Math.ceil(Math.random() * EMERALD_SPAWN_AMOUNT));
                break;
            case DIAMOND:
                award.put(MineshaftItem.DIAMOND, (long) Math.ceil(Math.random() * DIAMOND_SPAWN_AMOUNT));
                award.put(MineshaftItem.XP, (long) Math.ceil(Math.random() * XP_SPAWN_AMOUNT * 10l));
                break;
            case OBSIDIAN:
                award.put(MineshaftItem.OBSIDIAN, (long) Math.ceil(Math.random() * OBSIDIAN_SPAWN_AMOUNT));
                award.put(MineshaftItem.XP, (long) Math.ceil(Math.random() * XP_SPAWN_AMOUNT * 10l));
                break;
            default:
                break;
        }

        return award;
    }
}