package me.totalfreedom.totalfreedommod.util;

import java.io.File;
import java.io.FileFilter;
import java.lang.reflect.Field;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Random;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import me.totalfreedom.totalfreedommod.config.ConfigEntry;
import static me.totalfreedom.totalfreedommod.util.FUtil.CHAT_RAINBOW;
import static me.totalfreedom.totalfreedommod.util.FUtil.FOUNDER;
import org.apache.commons.io.FileUtils;
import org.apache.commons.lang3.StringUtils;
import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.Location;
import org.bukkit.OfflinePlayer;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.scheduler.BukkitTask;

public class FUtil
{
    private static final Random RANDOM;
    public static final String SAVED_FLAGS_FILENAME = "savedflags.dat";
    public static final List<String> DEVELOPERS;
    public static final List<String> FOUNDER;
    public static String DATE_STORAGE_FORMAT;
    public static final Map<String, ChatColor> CHAT_COLOR_NAMES;
    public static final Map<String, ChatColor> CHAT_RAINBOW_NAMES;
    public static List<String> BLOCKED_CODES;
    public static final List<ChatColor> CHAT_COLOR_POOL;
    public static final List<ChatColor> CHAT_RAINBOW;
    private static Iterator<ChatColor> color;
    
   static {
        RANDOM = new Random();
        DEVELOPERS = Arrays.asList("Madgeek1450", "Prozza", "WickedGamingUK", "aggelosQQ", "OxLemonxO", "Commodore64x", "Wild1145", "marcocorriero");
        FOUNDER = Arrays.asList("markbyron");
        FUtil.DATE_STORAGE_FORMAT = "EEE, d MMM yyyy HH:mm:ss Z";
        CHAT_COLOR_NAMES = new HashMap<String, ChatColor>();
        CHAT_RAINBOW_NAMES = new HashMap<String, ChatColor>();
        FUtil.BLOCKED_CODES = new ArrayList<String>();
        CHAT_COLOR_POOL = Arrays.asList(ChatColor.DARK_BLUE, ChatColor.DARK_GREEN, ChatColor.DARK_AQUA, ChatColor.DARK_RED, ChatColor.DARK_PURPLE, ChatColor.GOLD, ChatColor.BLUE, ChatColor.GREEN, ChatColor.AQUA, ChatColor.RED, ChatColor.LIGHT_PURPLE, ChatColor.YELLOW);
        CHAT_RAINBOW = Arrays.asList(ChatColor.DARK_RED, ChatColor.RED, ChatColor.GOLD, ChatColor.YELLOW, ChatColor.GREEN, ChatColor.DARK_GREEN, ChatColor.AQUA, ChatColor.DARK_AQUA, ChatColor.BLUE, ChatColor.DARK_BLUE, ChatColor.DARK_PURPLE, ChatColor.LIGHT_PURPLE);
        for (final ChatColor chatColor : FUtil.CHAT_COLOR_POOL) {
            FUtil.CHAT_COLOR_NAMES.put(chatColor.name().toLowerCase().replace("_", ""), chatColor);
        }
        for (final ChatColor chatColor : FUtil.CHAT_RAINBOW) {
            FUtil.CHAT_RAINBOW_NAMES.put(chatColor.name().toLowerCase().replace("_", ""), chatColor);
        }
        FUtil.color = FUtil.CHAT_RAINBOW.iterator();
    }
   

private FUtil()
    {
    }

    public static void cancel(BukkitTask task)
    {
        if (task == null)
        {
            return;
        }

        try
        {
            task.cancel();
        }
        catch (Exception ex)
        {
        }
    }

    public static void bcastMsg(String message, ChatColor color)
    {
        FLog.info(message, true);

        for (Player player : Bukkit.getOnlinePlayers())
        {
            player.sendMessage((color == null ? "" : color) + message);
        }
    }

    public static void bcastMsg(String message)
    {
        FUtil.bcastMsg(message, null);
    }

    // Still in use by listeners
    public static void playerMsg(CommandSender sender, String message, ChatColor color)
    {
        sender.sendMessage(color + message);
    }

    // Still in use by listeners
    public static void playerMsg(CommandSender sender, String message)
    {
        FUtil.playerMsg(sender, message, ChatColor.GRAY);
    }

    public static void setFlying(Player player, boolean flying)
    {
        player.setAllowFlight(true);
        player.setFlying(flying);
    }

    public static void adminAction(String adminName, String action, boolean isRed)
    {
        FUtil.bcastMsg(adminName + " - " + action, (isRed ? ChatColor.RED : ChatColor.AQUA));
    }

    public static String formatLocation(Location location)
    {
        return String.format("%s: (%d, %d, %d)",
                location.getWorld().getName(),
                Math.round(location.getX()),
                Math.round(location.getY()),
                Math.round(location.getZ()));
    }

    public static boolean deleteFolder(final File file)
    {
        if (file.exists() && file.isDirectory())
        {
            return FileUtils.deleteQuietly(file);
        }
        return false;
    }

    public static void deleteCoreDumps()
    {
        final File[] coreDumps = new File(".").listFiles(new FileFilter()
        {
            @Override
        public boolean accept(File file)
            {
                return file.getName().startsWith("java.core");
            }
        });

        for (File dump : coreDumps)
        {
            FLog.info("Removing core dump file: " + dump.getName());
            dump.delete();
        }
    }

    public static Date parseDateOffset(String time)
    {
        Pattern timePattern = Pattern.compile(
                "(?:([0-9]+)\\s*y[a-z]*[,\\s]*)?"
                + "(?:([0-9]+)\\s*mo[a-z]*[,\\s]*)?"
                + "(?:([0-9]+)\\s*w[a-z]*[,\\s]*)?"
                + "(?:([0-9]+)\\s*d[a-z]*[,\\s]*)?"
                + "(?:([0-9]+)\\s*h[a-z]*[,\\s]*)?"
                + "(?:([0-9]+)\\s*m[a-z]*[,\\s]*)?"
                + "(?:([0-9]+)\\s*(?:s[a-z]*)?)?", Pattern.CASE_INSENSITIVE);
        Matcher m = timePattern.matcher(time);
        int years = 0;
        int months = 0;
        int weeks = 0;
        int days = 0;
        int hours = 0;
        int minutes = 0;
        int seconds = 0;
        boolean found = false;
        while (m.find())
        {
            if (m.group() == null || m.group().isEmpty())
            {
                continue;
            }
            for (int i = 0; i < m.groupCount(); i++)
            {
                if (m.group(i) != null && !m.group(i).isEmpty())
                {
                    found = true;
                    break;
                }
            }
            if (found)
            {
                if (m.group(1) != null && !m.group(1).isEmpty())
                {
                    years = Integer.parseInt(m.group(1));
                }
                if (m.group(2) != null && !m.group(2).isEmpty())
                {
                    months = Integer.parseInt(m.group(2));
                }
                if (m.group(3) != null && !m.group(3).isEmpty())
                {
                    weeks = Integer.parseInt(m.group(3));
                }
                if (m.group(4) != null && !m.group(4).isEmpty())
                {
                    days = Integer.parseInt(m.group(4));
                }
                if (m.group(5) != null && !m.group(5).isEmpty())
                {
                    hours = Integer.parseInt(m.group(5));
                }
                if (m.group(6) != null && !m.group(6).isEmpty())
                {
                    minutes = Integer.parseInt(m.group(6));
                }
                if (m.group(7) != null && !m.group(7).isEmpty())
                {
                    seconds = Integer.parseInt(m.group(7));
                }
                break;
            }
        }
        if (!found)
        {
            return null;
        }

        Calendar c = new GregorianCalendar();

        if (years > 0)
        {
            c.add(Calendar.YEAR, years);
        }
        if (months > 0)
        {
            c.add(Calendar.MONTH, months);
        }
        if (weeks > 0)
        {
            c.add(Calendar.WEEK_OF_YEAR, weeks);
        }
        if (days > 0)
        {
            c.add(Calendar.DAY_OF_MONTH, days);
        }
        if (hours > 0)
        {
            c.add(Calendar.HOUR_OF_DAY, hours);
        }
        if (minutes > 0)
        {
            c.add(Calendar.MINUTE, minutes);
        }
        if (seconds > 0)
        {
            c.add(Calendar.SECOND, seconds);
        }

        return c.getTime();
    }

    public static String playerListToNames(Set<OfflinePlayer> players)
    {
        List<String> names = new ArrayList<>();
        for (OfflinePlayer player : players)
        {
            names.add(player.getName());
        }
        return StringUtils.join(names, ", ");
    }

    public static String dateToString(Date date)
    {
        return new SimpleDateFormat(DATE_STORAGE_FORMAT, Locale.ENGLISH).format(date);
    }

    public static Date stringToDate(String dateString)
    {
        try
        {
            return new SimpleDateFormat(DATE_STORAGE_FORMAT, Locale.ENGLISH).parse(dateString);
        }
        catch (ParseException pex)
        {
            return new Date(0L);
        }
    }

    public static boolean isFromHostConsole(String senderName)
    {
        return ConfigEntry.HOST_SENDER_NAMES.getList().contains(senderName.toLowerCase());
    }

    public static boolean fuzzyIpMatch(String a, String b, int octets)
    {
        boolean match = true;

        String[] aParts = a.split("\\.");
        String[] bParts = b.split("\\.");

        if (aParts.length != 4 || bParts.length != 4)
        {
            return false;
        }

        if (octets > 4)
        {
            octets = 4;
        }
        else if (octets < 1)
        {
            octets = 1;
        }

        for (int i = 0; i < octets && i < 4; i++)
        {
            if (aParts[i].equals("*") || bParts[i].equals("*"))
            {
                continue;
            }

            if (!aParts[i].equals(bParts[i]))
            {
                match = false;
                break;
            }
        }

        return match;
    }

    public static String getFuzzyIp(String ip)
    {
        final String[] ipParts = ip.split("\\.");
        if (ipParts.length == 4)
        {
            return String.format("%s.%s.*.*", ipParts[0], ipParts[1]);
        }

        return ip;
    }

    //getField: Borrowed from WorldEdit
    @SuppressWarnings("unchecked")
        public static <T> T getField(Object from, String name)
    {
        Class<?> checkClass = from.getClass();
        do
        {
            try
            {
                Field field = checkClass.getDeclaredField(name);
                field.setAccessible(true);
                return (T) field.get(from);

            

}
            catch (NoSuchFieldException | IllegalAccessException ex)
            {
            }
        } while (checkClass.getSuperclass() != Object.class

&& ((checkClass = checkClass.getSuperclass()) != null));

        return null;
    }

    public static ChatColor randomChatColor() {
        return FUtil.CHAT_COLOR_POOL.get(FUtil.RANDOM.nextInt(FUtil.CHAT_COLOR_POOL.size()));
    }
    
    public static ChatColor rainbowChatColor() {
        if (FUtil.color.hasNext()) {
            return FUtil.color.next();
        }
        FUtil.color = FUtil.CHAT_RAINBOW.iterator();
        return FUtil.color.next();
    }

    public static String colorize(String string)
    {
        return ChatColor.translateAlternateColorCodes('&', string);
    }

    public static Date getUnixDate(long unix)
    {
        return new Date(unix * 1000);
    }

    public static long getUnixTime()
    {
        return System.currentTimeMillis() / 1000L;
    }

    public static long getUnixTime(Date date)
    {
        if (date == null)
        {
            return 0;
        }

        return date.getTime() / 1000L;
    }

    public static String getNmsVersion()
    {
        String packageName = Bukkit.getServer().getClass().getPackage().getName();
        return packageName.substring(packageName.lastIndexOf('.') + 1);
    }

}