package os.arcadiadevs.playerservers.servercore.commands;

import com.cryptomorin.xseries.XMaterial;
import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.inventory.Inventory;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;
import org.bukkit.inventory.meta.SkullMeta;
import org.bukkit.plugin.InvalidDescriptionException;
import org.bukkit.plugin.InvalidPluginException;
import org.bukkit.plugin.Plugin;
import org.bukkit.plugin.UnknownDependencyException;
import os.arcadiadevs.playerservers.servercore.utils.ColorUtils;
import os.arcadiadevs.playerservers.servercore.utils.FileUtils;
import os.arcadiadevs.playerservers.servercore.utils.FormattingUtils;
import os.arcadiadevs.playerservers.servercore.utils.Hastebin;
import os.arcadiadevs.playerservers.servercore.utils.TPSUtils;

import java.io.File;
import java.io.IOException;

import java.util.ArrayList;
import java.util.List;
import java.util.Locale;

public class Commands implements CommandExecutor {

    private final Plugin SC;

    public Commands(Plugin sc) {
        this.SC = sc;
    }

    @Override
    public boolean onCommand(CommandSender commandSender, Command command, String s, String[] strings) {
        if (commandSender instanceof Player) {

            final Player sender = (Player) commandSender;

            if (!hasAccess(sender)) {
                sender.sendMessage(ChatColor.RED + "I'm sorry, but you do not have permission to perform " +
                        "this command. Please contact server administrators if you believe that this is in error.");
                return true;
            }

            switch (command.getName().toLowerCase()) {
                case "addplugin":
                    if (strings.length != 1) {
                        sender.sendMessage(ChatColor.RED + "Not enough, or too many arguments!");
                        return true;
                    }

                    new Thread(() -> {
                        if (Bukkit.getPluginManager().getPlugins().length > SC.getConfig().getInt("MaxPlugins")) {
                            sender.sendMessage(ColorUtils.translate("&9Error> &7You can have a max of &e" + (Bukkit.getPluginManager().getPlugins().length-1) + "&7 plugins."));
                            return;
                        }

                        final String displayName = strings[0].toLowerCase().endsWith(".jar") ? strings[0] : strings[0] + ".jar";
                        final String PATH1 = SC.getDataFolder().getAbsoluteFile().getParentFile().getParentFile().getParentFile().getParentFile().getAbsolutePath() + File.separatorChar + "plugins-to-be-added-ingame" + File.separatorChar + displayName;

                        if (!(new File(PATH1).exists())) {
                            sender.sendMessage(ColorUtils.translate("&9Error> &7The plugin you're trying to add does not exist!"));
                            return;
                        }

                        final String PLUGINSPATH = SC.getDataFolder().getAbsoluteFile().getParentFile().getAbsolutePath();
                        final File f = new File(PLUGINSPATH + File.separatorChar + displayName);
                        try {
                            Runtime.getRuntime().exec("cp -r " + PATH1 + " " + PLUGINSPATH);
                            Bukkit.getScheduler().runTaskLater(SC, () -> {
                                Plugin pl = null;
                                try {
                                    pl = Bukkit.getPluginManager().loadPlugin(f);
                                } catch (InvalidPluginException | InvalidDescriptionException | UnknownDependencyException ex) {
                                    if (ex instanceof UnknownDependencyException) {
                                        UnknownDependencyException udp = (UnknownDependencyException) ex;
                                        sender.sendMessage(ColorUtils.translate(String.format("&9Error> &7Oops, it looks like that plugin could not be loaded! The plugin you tried to load requires an additional dependency : %s (Code #PL3)", udp.getLocalizedMessage())));
                                        f.delete();
                                    } else {
                                        sender.sendMessage(ColorUtils.translate("&9Error> &7Oops, it looks like that plugin could not be loaded! The error exception has been printed to the console, please ask an administrator to take a look. (Code #PL2)"));
                                        ex.printStackTrace();
                                    }
                                }
                                Bukkit.getPluginManager().enablePlugin(pl);
                                sender.sendMessage(ColorUtils.translate("&9PluginManager> &7We've tried to enable &a" + pl.getName() + "&7. &cPLEASE NOTE THAT NOW YOU SHOULD RESTART YOUR SERVER OR SOME ISSUES MAY OCCUR!!"));
                                final List<String> current = SC.getConfig().getStringList("PluginsEnabled");
                                current.add(displayName + ";" + pl.getName() + ";" + pl.getDescription().getDescription());
                                SC.getConfig().set("PluginsEnabled", current);
                                SC.saveConfig();
                            }, 10);
                        } catch (IOException ex) {
                            sender.sendMessage(ColorUtils.translate("&9Error> &7Oops, it looks like that plugin could not be loaded! The error exception has been printed to the console, please ask an administrator to take a look. (Code #PL1)"));
                            ex.printStackTrace();
                        }
                    }).start();
                    return true;
                case "removeplugin":
                    if (strings.length != 1) {
                        sender.sendMessage(ChatColor.RED + "Not enough, or too many arguments!");
                        return true;
                    }

                    final FormattingUtils removeFu = new FormattingUtils(SC);
                    final String displayName = strings[0].toLowerCase().endsWith(".jar") ? strings[0] : strings[0] + ".jar";
                    final String PLUGINSPATH = SC.getDataFolder().getAbsoluteFile().getParentFile().getAbsolutePath();
                    final List<String> current = SC.getConfig().getStringList("PluginsEnabled");

                    try {
                        final Plugin pl;
                        try {
                            pl = Bukkit.getPluginManager().getPlugin(removeFu.findRealName(current, displayName));
                        } catch (Exception ex) {
                            sender.sendMessage(ColorUtils.translate("&9Error> &7The plugin you're trying to remove does not exist!"));
                            return true;
                        }

                        if (pl == null) {
                            sender.sendMessage(ColorUtils.translate("&9Error> &7The plugin you're trying to remove does not exist!"));
                            return true;
                        }

                        Bukkit.getPluginManager().disablePlugin(pl);
                        Runtime.getRuntime().exec("rm -r " + PLUGINSPATH + File.separatorChar + displayName);
                        sender.sendMessage(ColorUtils.translate("&9PluginManager> &7Successfully disabled &a" + pl.getName() + "&7. &cTHE PLUGIN WILL BE REMOVED ONCE THE SERVER RESTARTS. YOU SHOULD RESTART THE SERVER NOW TO AVOID SIDE-EFFECTS"));
                        current.removeIf(el -> el.toLowerCase().contains(displayName.toLowerCase()));
                        SC.getConfig().set("PluginsEnabled", current);
                        SC.saveConfig();
                    } catch (IOException ex) {
                        sender.sendMessage(ColorUtils.translate("&9Error> &7Oops, it looks like that plugin could not be loaded! The error exception has been printed to the console, please ask an administrator to take a look."));
                        ex.printStackTrace();
                    }
                    break;
                case "updateconfig":
                    if (strings.length != 2) {
                        sender.sendMessage(ChatColor.RED + "Not enough, or too many arguments!");
                        return true;
                    }

                    final Hastebin hb = new Hastebin();
                    final String path = SC.getDataFolder().getAbsoluteFile().getParentFile().getAbsolutePath() + File.separatorChar + strings[0];
                    final String link = strings[1]
                        .replaceAll("https://", "")
                        .replaceAll("http://", "")
                        .replaceAll("hastebin\\.com", "")
                        .replaceAll("paste\\.md-5\\.net", "")
                        .replaceAll("/", "");
                    final File editFile = new File(path);

                    if (!editFile.exists()) {
                        sender.sendMessage(ColorUtils.translate("&9Error> &7The plugin you're trying to edit does not exist!"));
                        return true;
                    }

                    final String output = (link.toLowerCase().contains("hastebin")) ? hb.getPaste(false, link) : hb.getPaste(true, link);

                    try {
                        final FileUtils fu = new FileUtils();
                        fu.replaceConfig(output, new File(path));
                    } catch (NullPointerException ex) {
                        ex.printStackTrace();
                        sender.sendMessage(ColorUtils.translate(ColorUtils.translate("&9Error> &7Error replacing config content.")));
                        return true;
                    }

                    sender.sendMessage(ColorUtils.translate("&9Config> &7You've successfully edited the config! You should restart the server now in order to apply the changes."));
                    break;
                case "menu":
                    new Thread(() -> {
                        final Inventory gui = Bukkit.createInventory(sender, 3*9, ChatColor.BLACK + "Server Statistics");
                        final String tps = String.format(Locale.US, "%.2f", TPSUtils.getRecentTps()[0]);
                        final String tpsString = (Double.parseDouble(tps) > 20) ? "20.00" : tps;

                        ItemStack itemStack = XMaterial.CRAFTING_TABLE.parseItem();
                        ItemMeta im = itemStack.getItemMeta();
                        im.setDisplayName(ColorUtils.translate("&cStatistics & Info"));
                        ArrayList<String> lore = new ArrayList<String>() {{
                            add(ColorUtils.translate("&aUUID: &7" + SC.getConfig().getString("ServerUUID").split("-")[0]));
                            add(ColorUtils.translate("&aTPS: &7" + tpsString));
                            add(ColorUtils.translate("&aOnline: &7" + Bukkit.getOnlinePlayers().size() + " players"));
                            add(ColorUtils.translate("&aWhitelist: &7" + Bukkit.getServer().hasWhitelist()));
                            add(ColorUtils.translate("&aBanned: &7" + Bukkit.getServer().getBannedPlayers().size() + " players"));
                        }};
                        im.setLore(lore);
                        itemStack.setItemMeta(im);
                        gui.setItem(10, itemStack);

                        lore.clear();

                        itemStack = XMaterial.CLOCK.parseItem();
                        im = itemStack.getItemMeta();
                        im.setDisplayName(ColorUtils.translate("&cPlugin Manager"));
                        lore.add(ColorUtils.translate("&7Click on this menu in order"));
                        lore.add(ColorUtils.translate("&7to install new plugins or"));
                        lore.add(ColorUtils.translate("&7to remove existing ones."));
                        im.setLore(lore);
                        itemStack.setItemMeta(im);
                        gui.setItem(16, itemStack);

                        lore.clear();

                        itemStack = XMaterial.WRITABLE_BOOK.parseItem();
                        im = itemStack.getItemMeta();
                        im.setDisplayName(ColorUtils.translate("&cSet MOTD"));
                        lore.add(ColorUtils.translate("&7Click here to set Server MOTD"));
                        im.setLore(lore);
                        itemStack.setItemMeta(im);
                        gui.setItem(12, itemStack);

                        lore.clear();

                        itemStack = XMaterial.PLAYER_HEAD.parseItem();
                        SkullMeta playerheadmeta = (SkullMeta) itemStack.getItemMeta();
                        playerheadmeta.setOwner(sender.getName());
                        playerheadmeta.setDisplayName(ColorUtils.translate("&cSet Max Players"));
                        lore.add(ColorUtils.translate("&7Click here to set max players count"));
                        playerheadmeta.setLore(lore);
                        itemStack.setItemMeta(playerheadmeta);
                        // TODO: Make permissions for this
                        gui.setItem(14, itemStack);

                        Bukkit.getScheduler().runTask(SC, () -> sender.openInventory(gui));
                    }).start();

                    return true;
                case "config":
                    final Inventory i = Bukkit.createInventory(sender, 6 * 9, ColorUtils.translate("&0Config Manager"));

                    sender.sendMessage(ColorUtils.translate("&9Config> &7Loading the GUI..."));

                    new Thread(() -> {
                        final File f = new File(SC.getDataFolder().getParentFile().getPath());
                        final ArrayList<ItemStack> al = new ArrayList<>();
                        final FormattingUtils fu = new FormattingUtils(SC);

                        for (File file : f.listFiles()) {

                            if (SC.getConfig().getStringList("DisabledAccess").contains(file.getName())) continue;

                            if (file.isDirectory()) {
                                if (file.getName().equalsIgnoreCase("PSServerCore")) continue;
                                ItemStack is = XMaterial.CHEST.parseItem();
                                ItemMeta im = is.getItemMeta();
                                im.setDisplayName(file.getName());
                                im.setLore(fu.location(file.getPath()));
                                is.setItemMeta(im);
                                i.addItem(is);
                            } else {
                                final ItemStack is =
                                        (file.getName().contains(".yml") || file.getName().contains(".json") || file.getName().contains(".toml") || file.getName().contains(".sk"))
                                                ? XMaterial.WRITABLE_BOOK.parseItem() : XMaterial.BOOK.parseItem();
                                ItemMeta im = is.getItemMeta();
                                im.setDisplayName(file.getName());
                                is.setItemMeta(im);
                                al.add(is);
                            }
                        }

                        al.forEach(i::addItem);

                        Bukkit.getScheduler().runTask(SC, () -> sender.openInventory(i));
                    }).start();

                    return true;
            }
        }

        return true;
    }

    private boolean hasAccess(Player player) {
        return SC.getConfig().getStringList("Access").contains(player.getName().toLowerCase())
                || SC.getConfig().getString("Owner").equalsIgnoreCase(player.getName())
                || SC.getConfig().getString("Owner").equalsIgnoreCase(player.getUniqueId().toString())
                || SC.getConfig().getStringList("Access").contains(player.getUniqueId().toString())
                || SC.getConfig().getString("Owner").equalsIgnoreCase(player.getUniqueId().toString())
                || SC.getConfig().getString("Owner").equalsIgnoreCase(player.getUniqueId().toString());
    }

}