package com.massivecraft.factions;

import ch.njol.skript.Skript;
import ch.njol.skript.SkriptAddon;
import com.google.gson.GsonBuilder;
import com.google.gson.reflect.TypeToken;
import com.massivecraft.factions.cmd.CmdAutoHelp;
import com.massivecraft.factions.cmd.FCmdRoot;
import com.massivecraft.factions.integration.Econ;
import com.massivecraft.factions.integration.Worldguard;
import com.massivecraft.factions.integration.dynmap.EngineDynmap;
import com.massivecraft.factions.listeners.*;
import com.massivecraft.factions.struct.ChatMode;
import com.massivecraft.factions.util.*;
import com.massivecraft.factions.util.Particles.ReflectionUtils;
import com.massivecraft.factions.zcore.CommandVisibility;
import com.massivecraft.factions.zcore.MCommand;
import com.massivecraft.factions.zcore.MPlugin;
import com.massivecraft.factions.zcore.fperms.Access;
import com.massivecraft.factions.zcore.fperms.Permissable;
import com.massivecraft.factions.zcore.fperms.PermissableAction;
import com.massivecraft.factions.zcore.fupgrades.*;
import com.massivecraft.factions.zcore.util.TextUtil;
import net.milkbowl.vault.economy.Economy;
import net.milkbowl.vault.permission.Permission;
import org.bukkit.*;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.ArmorStand;
import org.bukkit.entity.EntityType;
import org.bukkit.entity.Player;
import org.bukkit.event.Listener;
import org.bukkit.event.player.AsyncPlayerChatEvent;
import org.bukkit.inventory.Inventory;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;
import org.bukkit.plugin.Plugin;
import org.bukkit.plugin.RegisteredServiceProvider;

import java.io.*;
import java.lang.reflect.Modifier;
import java.lang.reflect.Type;
import java.util.*;
import java.util.concurrent.atomic.AtomicReference;
import java.util.logging.Level;
import java.util.stream.Collectors;


public class SaberFactions extends MPlugin {

	// Our single plugin instance.
	// Single 4 life.
	public static SaberFactions plugin;
	public static Permission perms = null;
	// This plugin sets the boolean true when fully enabled.
	// Plugins can check this boolean while hooking in have
	// a green light to use the api.
	public static boolean startupFinished = false;
	private FactionsPlayerListener factionsPlayerListener;


	public boolean PlaceholderApi;
	// Commands
	public FCmdRoot cmdBase;
	public CmdAutoHelp cmdAutoHelp;
	public boolean mc17 = false;
	public boolean mc18 = false;
	public boolean mc113 = false;
	public boolean mc114 = false;
	public boolean useNonPacketParticles = false;
	public boolean factionsFlight = false;
	SkriptAddon skriptAddon;
	private boolean locked = false;
	private boolean spam = false;
	private Integer AutoLeaveTask = null;
	private boolean hookedPlayervaults;
	private ClipPlaceholderAPIManager clipPlaceholderAPIManager;
	private boolean mvdwPlaceholderAPIManager = false;
	private Listener[] eventsListener;
	public static Economy econ = null;

	public SaberFactions() {
		plugin = this;
	}

	public boolean getLocked() {
		return this.locked;
	}

	public void setLocked(boolean val) {
		this.locked = val;
		this.setAutoSave(val);
	}

	public boolean getSpam() {
		return this.spam;
	}

	public void setSpam(boolean val) {
		this.spam = val;
		this.setAutoSave(val);
	}

	public void playSoundForAll(String sound) {
		for (Player pl : Bukkit.getOnlinePlayers()) {
			playSound(pl, sound);
		}
	}

	public void playSoundForAll(List<String> sounds) {
		for (Player pl : Bukkit.getOnlinePlayers()) {
			playSound(pl, sounds);
		}
	}

	public void playSound(Player p, List<String> sounds) {
		for (String sound : sounds) {
			playSound(p, sound);
		}
	}

	public void playSound(Player p, String sound) {
		float pitch = Float.valueOf(sound.split(":")[1]);
		sound = sound.split(":")[0];
		p.playSound(p.getLocation(), Sound.valueOf(sound), pitch, 5.0F);
	}

	@Override
	public void onEnable() {
		log("==== Setup ====");


		// Vault dependency check.
		if (getServer().getPluginManager().getPlugin("Vault") == null) {
			log("Vault is not present, the plugin will not run properly.");
			getServer().getPluginManager().disablePlugin(plugin);
			return;
		}

		int version = Integer.parseInt(ReflectionUtils.PackageType.getServerVersion().split("_")[1]);
		switch (version) {
			case 7:
				SaberFactions.plugin.log("Minecraft Version 1.7 found, disabling banners, itemflags inside GUIs, and Titles.");
				mc17 = true;
				break;
			case 8:
				SaberFactions.plugin.log("Minecraft Version 1.8 found, Title Fadeouttime etc will not be configurable.");
				mc18 = true;
				break;
			case 13:
				SaberFactions.plugin.log("Minecraft Version 1.13 found, New Items will be used.");
				mc113 = true;
				break;
			case 14:
				SaberFactions.plugin.log("Minecraft Version 1.14 found.");
				mc114 = true;
				break;
		}
		migrateFPlayerLeaders();
		log("==== End Setup ====");

		if (!preEnable()) {
			return;
		}
		this.loadSuccessful = false;

		saveDefaultConfig();

		// Load Conf from disk
		Conf.load();
		com.massivecraft.factions.integration.Essentials.setup();
		hookedPlayervaults = setupPlayervaults();
		FPlayers.getInstance().load();
		Factions.getInstance().load();

		for (FPlayer fPlayer : FPlayers.getInstance().getAllFPlayers()) {
			Faction faction = Factions.getInstance().getFactionById(fPlayer.getFactionId());
			if (faction == null) {
				log("Invalid faction id on " + fPlayer.getName() + ":" + fPlayer.getFactionId());
				fPlayer.resetFactionData(false);
				continue;
			}
			if (fPlayer.isAlt()) {
				faction.addAltPlayer(fPlayer);
			} else {
				faction.addFPlayer(fPlayer);
			}
		}

		UtilFly.run();

		Board.getInstance().load();
		Board.getInstance().clean();

		// Add Base Commands
		this.cmdBase = new FCmdRoot();
		this.cmdAutoHelp = new CmdAutoHelp();
		this.getBaseCommands().add(cmdBase);

		Econ.setup();
		setupPermissions();

		if (Conf.worldGuardChecking || Conf.worldGuardBuildPriority) {
			Worldguard.init(this);
		}

		EngineDynmap.getInstance().init();

		// start up task which runs the autoLeaveAfterDaysOfInactivity routine
		startAutoLeaveTask(false);

		if (version > 8) {
			useNonPacketParticles = true;
			log("Minecraft Version 1.9 or higher found, using non packet based particle API");
		}

		if (getConfig().getBoolean("enable-faction-flight")) {
			factionsFlight = true;
		}

		if (getServer().getPluginManager().getPlugin("Skript") != null) {
			log("Skript was found! Registering SaberFactions Addon...");
			skriptAddon = Skript.registerAddon(this);
			try {
				skriptAddon.loadClasses("com.massivecraft.factions.skript", "expressions");
			} catch (IOException ex) {
				ex.printStackTrace();
			}
			log("Skript addon registered!");
		}

		getServer().getPluginManager().registerEvents(factionsPlayerListener = new FactionsPlayerListener(), this);

		// Register Event Handlers
		eventsListener = new Listener[]{
				  new FactionsChatListener(),
				  new FactionsEntityListener(),
				  new FactionsExploitListener(),
				  new FactionsBlockListener(),
				  new FUpgradesGUI(),
				  new EXPUpgrade(),
				  new CropUpgrades(),
				  new RedstoneUpgrade(),
				  new SpawnerUpgrades()
		};

		for (Listener eventListener : eventsListener)
			getServer().getPluginManager().registerEvents(eventListener, this);

		// since some other plugins execute commands directly through this command interface, provide it
		getCommand(this.refCommand).setExecutor(this);
		getCommand(this.refCommand).setTabCompleter(this);


		RegisteredServiceProvider<Economy> rsp = SaberFactions.this.getServer().getServicesManager().getRegistration(Economy.class);
		SaberFactions.econ = rsp.getProvider();

		if (getDescription().getFullName().contains("BETA")) {
			divider();
			System.out.println("You are using a BETA version of the plugin!");
			System.out.println("This comes with risks of small bugs in newer features!");
			System.out.println("For support head to: https://github.com/ProSavage/SaberFactions/issues");
			divider();
		}

		this.setupPlaceholderAPI();
		this.postEnable();
		this.loadSuccessful = true;
		// Set startup finished to true. to give plugins hooking in a greenlight
		SaberFactions.startupFinished = true;
	}

	public SkriptAddon getSkriptAddon() {
		return skriptAddon;
	}



	private void setupPlaceholderAPI() {
		Plugin clip = getServer().getPluginManager().getPlugin("PlaceholderAPI");
		if (clip != null && clip.isEnabled()) {
			this.clipPlaceholderAPIManager = new ClipPlaceholderAPIManager();
			if (this.clipPlaceholderAPIManager.register()) {
				PlaceholderApi = true;
				log(Level.INFO, "Successfully registered placeholders with PlaceholderAPI.");
			} else {
				PlaceholderApi = false;
			}
		} else {
			PlaceholderApi = false;
		}

		Plugin mvdw = getServer().getPluginManager().getPlugin("MVdWPlaceholderAPI");
		if (mvdw != null && mvdw.isEnabled()) {
			this.mvdwPlaceholderAPIManager = true;
			log(Level.INFO, "Found MVdWPlaceholderAPI. Adding hooks.");
		}
	}

	private void migrateFPlayerLeaders() {
		List<String> lines = new ArrayList<>();
		File fplayerFile = new File("plugins" + File.pathSeparator + "Factions" + File.pathSeparator + "players.json");

		try {
			BufferedReader br = new BufferedReader(new FileReader(fplayerFile));
			System.out.println("Migrating old players.json file.");

			String line;
			while ((line = br.readLine()) != null) {
				if (line.contains("\"role\": \"ADMIN\"")) {
					line = line.replace("\"role\": \"ADMIN\"", "\"role\": " + "\"LEADER\"");
				}
				lines.add(line);
			}
			br.close();
			BufferedWriter bw = new BufferedWriter(new FileWriter(fplayerFile));
			for (String newLine : lines) {
				bw.write(newLine + "\n");
			}
			bw.flush();
			bw.close();
		} catch (IOException ex) {
			System.out.println("File was not found for players.json, assuming"
					  + " there is no need to migrate old players.json file.");
		}
	}


	public void replaceStringInConfig(String path, String stringToReplace, String replacementString) {
		if (getConfig().getString(path).equals(stringToReplace)) {
			// SaberFactions.plugin.log("Replacing legacy material '" + stringToReplace + "' with '" + replacementString + "' for config node '" + path + "'.");
			// log("Replacing legacy material '" + stringToReplace + "' with '" + replacementString + "' for config node '" + path + "'.");

			getConfig().set(path, replacementString);
		}
	}

	public boolean isClipPlaceholderAPIHooked() {
		return this.clipPlaceholderAPIManager != null;
	}

	public boolean isMVdWPlaceholderAPIHooked() {
		return this.mvdwPlaceholderAPIManager;
	}

	private boolean setupPermissions() {
		try {
			RegisteredServiceProvider<Permission> rsp = getServer().getServicesManager().getRegistration(Permission.class);
			if (rsp != null) {
				perms = rsp.getProvider();
			}
		} catch (NoClassDefFoundError ex) {
			return false;
		}
		return perms != null;
	}

	private boolean setupPlayervaults() {
		Plugin plugin = getServer().getPluginManager().getPlugin("PlayerVaults");
		return plugin != null && plugin.isEnabled();
	}

	@Override
	public GsonBuilder getGsonBuilder() {
		Type mapFLocToStringSetType = new TypeToken<Map<FLocation, Set<String>>>() {
		}.getType();

		Type accessTypeAdatper = new TypeToken<Map<Permissable, Map<PermissableAction, Access>>>() {
		}.getType();

		return new GsonBuilder().setPrettyPrinting().disableHtmlEscaping().enableComplexMapKeySerialization().excludeFieldsWithModifiers(Modifier.TRANSIENT, Modifier.VOLATILE)
				  .registerTypeAdapter(accessTypeAdatper, new PermissionsMapTypeAdapter())
				  .registerTypeAdapter(LazyLocation.class, new MyLocationTypeAdapter())
				  .registerTypeAdapter(mapFLocToStringSetType, new MapFLocToStringSetTypeAdapter())
				  .registerTypeAdapter(Inventory.class, new InventoryTypeAdapter())
				  .registerTypeAdapter(Location.class, new LocationTypeAdapter())
				  .registerTypeAdapterFactory(EnumTypeAdapter.ENUM_FACTORY);
	}

	private void divider() {
		System.out.println("  .-.-.   .-.-.   .-.-.   .-.-.   .-.-.   .-.-.   .-.-.   .-.-");
		System.out.println(" / / \\ \\ / / \\ \\ / / \\ \\ / / \\ \\ / / \\ \\ / / \\ \\ / / \\ \\ / / \\");
		System.out.println("`-'   `-`-'   `-`-'   `-`-'   `-`-'   `-`-'   `-`-'   `-`-'");
	}

	@Override
	public void onDisable() {
		// only save data if plugin actually completely loaded successfully
		if (this.loadSuccessful) {
			// Dont save, as this is kind of pointless, as the /f config command manually saves.
			// So any edits done are saved, this way manual edits to json can go through.

			// Conf.save();
		}

		if (AutoLeaveTask != null) {
			this.getServer().getScheduler().cancelTask(AutoLeaveTask);
			AutoLeaveTask = null;
		}

		super.onDisable();
	}

	public void startAutoLeaveTask(boolean restartIfRunning) {
		if (AutoLeaveTask != null) {
			if (!restartIfRunning) {
				return;
			}
			this.getServer().getScheduler().cancelTask(AutoLeaveTask);
		}

		if (Conf.autoLeaveRoutineRunsEveryXMinutes > 0.0) {
			long ticks = (long) (20 * 60 * Conf.autoLeaveRoutineRunsEveryXMinutes);
			AutoLeaveTask = getServer().getScheduler().scheduleSyncRepeatingTask(this, new AutoLeaveTask(), ticks, ticks);
		}
	}

	@Override
	public void postAutoSave() {
		//Board.getInstance().forceSave(); Not sure why this was there as it's called after the board is already saved.
		Conf.save();
	}

	public ItemStack createItem(Material material, int amount, short datavalue, String name, List<String> lore) {
		ItemStack item = new ItemStack(XMaterial.matchXMaterial(material.toString()).parseMaterial(), amount, datavalue);
		ItemMeta meta = item.getItemMeta();
		meta.setDisplayName(color(name));
		meta.setLore(colorList(lore));
		item.setItemMeta(meta);
		return item;
	}

	public ItemStack createLazyItem(Material material, int amount, short datavalue, String name, String lore) {
		ItemStack item = new ItemStack(material, amount, datavalue);
		ItemMeta meta = item.getItemMeta();
		meta.setDisplayName(color(SaberFactions.plugin.getConfig().getString(name)));
		meta.setLore(colorList(SaberFactions.plugin.getConfig().getStringList(lore)));
		item.setItemMeta(meta);
		return item;
	}

	public Economy getEcon() {
		RegisteredServiceProvider<Economy> rsp = SaberFactions.plugin.getServer().getServicesManager().getRegistration(Economy.class);
		Economy econ = rsp.getProvider();
		return econ;
	}


	@Override
	public boolean logPlayerCommands() {
		return Conf.logPlayerCommands;
	}

	@Override
	public boolean handleCommand(CommandSender sender, String commandString, boolean testOnly) {
		return sender instanceof Player && FactionsPlayerListener.preventCommand(commandString, (Player) sender) || super.handleCommand(sender, commandString, testOnly);
	}

	@Override
	public boolean onCommand(CommandSender sender, Command command, String label, String[] split) {
		if (split.length == 0) {
			return handleCommand(sender, "/f help", false);
		}

		// otherwise, needs to be handled; presumably another plugin directly ran the command
		String cmd = Conf.baseCommandAliases.isEmpty() ? "/f" : "/" + Conf.baseCommandAliases.get(0);
		return handleCommand(sender, cmd + " " + TextUtil.implode(Arrays.asList(split), " "), false);
	}

	@Override
	public List<String> onTabComplete(CommandSender sender, Command command, String alias, String[] args) {
		FPlayer fPlayer = FPlayers.getInstance().getByPlayer((Player) sender);
		List<String> completions = new ArrayList<>();
		String cmd = Conf.baseCommandAliases.isEmpty() ? "/f" : "/" + Conf.baseCommandAliases.get(0);
		List<String> argsList = new ArrayList<>(Arrays.asList(args));
		argsList.remove(argsList.size() - 1);
		String cmdValid = (cmd + " " + TextUtil.implode(argsList, " ")).trim();
		MCommand<?> commandEx = cmdBase;
		List<MCommand<?>> commandsList = cmdBase.subCommands;

		for (; !commandsList.isEmpty() && !argsList.isEmpty(); argsList.remove(0)) {
			String cmdName = argsList.get(0).toLowerCase();
			MCommand<?> commandFounded = commandsList.stream()
					  .filter(c -> c.aliases.contains(cmdName))
					  .findFirst().orElse(null);

			if (commandFounded != null) {
				commandEx = commandFounded;
				commandsList = commandFounded.subCommands;
			} else break;
		}

		if (argsList.isEmpty()) {
			for (MCommand<?> subCommand : commandEx.subCommands) {
				subCommand.setCommandSender(sender);
				if (handleCommand(sender, cmdValid + " " + subCommand.aliases.get(0), true)
						  && subCommand.visibility != CommandVisibility.INVISIBLE
						  && subCommand.validSenderType(sender, false)
						  && subCommand.validSenderPermissions(sender, false))
					completions.addAll(subCommand.aliases);
			}
		}

		String lastArg = args[args.length - 1].toLowerCase();
        for (Player player : Bukkit.getServer().getOnlinePlayers()) {
            completions.add(player.getName());
        }
		completions = completions.stream()
				.filter(m -> m.toLowerCase().startsWith(lastArg))
				.collect(Collectors.toList());
        return completions;
	}

	public void createTimedHologram(final Location location, String text, Long timeout) {
		ArmorStand as = (ArmorStand) location.add(0.5, 1, 0.5).getWorld().spawnEntity(location, EntityType.ARMOR_STAND); //Spawn the ArmorStand
		as.setVisible(false); //Makes the ArmorStand invisible
		as.setGravity(false); //Make sure it doesn't fall
		as.setCanPickupItems(false); //I'm not sure what happens if you leave this as it is, but you might as well disable it
		as.setCustomName(SaberFactions.plugin.color(text)); //Set this to the text you want
		as.setCustomNameVisible(true); //This makes the text appear no matter if your looking at the entity or not
		final ArmorStand armorStand = as;

		Bukkit.getScheduler().scheduleSyncDelayedTask(SaberFactions.plugin, () -> {
					  armorStand.remove();
					  getLogger().info("Removing Hologram.");
				  }
				  , timeout * 20);
	}


	// -------------------------------------------- //
	// Functions for other plugins to hook into
	// -------------------------------------------- //

	// This value will be updated whenever new hooks are added
	public int hookSupportVersion() {
		return 3;
	}

	// If another plugin is handling insertion of chat tags, this should be used to notify Factions
	public void handleFactionTagExternally(boolean notByFactions) {
		Conf.chatTagHandledByAnotherPlugin = notByFactions;
	}

	// Simply put, should this chat event be left for Factions to handle? For now, that means players with Faction Chat
	// enabled or use of the Factions f command without a slash; combination of isPlayerFactionChatting() and isFactionsCommand()

	public boolean shouldLetFactionsHandleThisChat(AsyncPlayerChatEvent event) {
		return event != null && (isPlayerFactionChatting(event.getPlayer()) || isFactionsCommand(event.getMessage()));
	}


	// Does player have Faction Chat enabled? If so, chat plugins should preferably not do channels,
	// local chat, or anything else which targets individual recipients, so Faction Chat can be done
	public boolean isPlayerFactionChatting(Player player) {
		if (player == null) {
			return false;
		}
		FPlayer me = FPlayers.getInstance().getByPlayer(player);

		return me != null && me.getChatMode().isAtLeast(ChatMode.ALLIANCE);
	}

	// Is this chat message actually a Factions command, and thus should be left alone by other plugins?

	// TODO: GET THIS BACK AND WORKING

	public boolean isFactionsCommand(String check) {
		return !(check == null || check.isEmpty()) && this.handleCommand(null, check, true);
	}

	// Get a player's faction tag (faction name), mainly for usage by chat plugins for local/channel chat
	public String getPlayerFactionTag(Player player) {
		return getPlayerFactionTagRelation(player, null);
	}

	// Same as above, but with relation (enemy/neutral/ally) coloring potentially added to the tag
	public String getPlayerFactionTagRelation(Player speaker, Player listener) {
		String tag = "~";

		if (speaker == null) {
			return tag;
		}

		FPlayer me = FPlayers.getInstance().getByPlayer(speaker);
		if (me == null) {
			return tag;
		}

		// if listener isn't set, or config option is disabled, give back uncolored tag
		if (listener == null || !Conf.chatTagRelationColored) {
			tag = me.getChatTag().trim();
		} else {
			FPlayer you = FPlayers.getInstance().getByPlayer(listener);
			if (you == null) {
				tag = me.getChatTag().trim();
			} else  // everything checks out, give the colored tag
			{
				tag = me.getChatTag(you).trim();
			}
		}
		if (tag.isEmpty()) {
			tag = "~";
		}

		return tag;
	}

	// Get a player's title within their faction, mainly for usage by chat plugins for local/channel chat
	public String getPlayerTitle(Player player) {
		if (player == null) {
			return "";
		}

		FPlayer me = FPlayers.getInstance().getByPlayer(player);
		if (me == null) {
			return "";
		}

		return me.getTitle().trim();
	}

	public String color(String line) {
		line = ChatColor.translateAlternateColorCodes('&', line);
		return line;
	}

	//colors a string list
	public List<String> colorList(List<String> lore) {
		for (int i = 0; i <= lore.size() - 1; i++) {
			lore.set(i, color(lore.get(i)));
		}
		return lore;
	}

	// Get a list of all faction tags (names)
	public Set<String> getFactionTags() {
		return Factions.getInstance().getFactionTags();
	}

	// Get a list of all players in the specified faction
	public Set<String> getPlayersInFaction(String factionTag) {
		Set<String> players = new HashSet<>();
		Faction faction = Factions.getInstance().getByTag(factionTag);
		if (faction != null) {
			for (FPlayer fplayer : faction.getFPlayers()) {
				players.add(fplayer.getName());
			}
		}
		return players;
	}

	// Get a list of all online players in the specified faction
	public Set<String> getOnlinePlayersInFaction(String factionTag) {
		Set<String> players = new HashSet<>();
		Faction faction = Factions.getInstance().getByTag(factionTag);
		if (faction != null) {
			for (FPlayer fplayer : faction.getFPlayersWhereOnline(true)) {
				players.add(fplayer.getName());
			}
		}
		return players;
	}

	public boolean isHookedPlayervaults() {
		return hookedPlayervaults;
	}

	public String getPrimaryGroup(OfflinePlayer player) {
		AtomicReference<String> primaryGroup = new AtomicReference<>();

		if (perms == null || !perms.hasGroupSupport()) return " ";
		else {
			Bukkit.getScheduler().runTaskAsynchronously(this, () -> primaryGroup.set(perms.getPrimaryGroup(Bukkit.getWorlds().get(0).toString(), player)));
			return primaryGroup.get();
		}
	}

	public void debug(Level level, String s) {
		if (getConfig().getBoolean("debug", false)) {
			getLogger().log(level, s);
		}
	}
	public FactionsPlayerListener getFactionsPlayerListener() {
		return this.factionsPlayerListener;
	}

	public void debug(String s) {
		debug(Level.INFO, s);
	}
}