package com.massivecraft.factions;

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.Essentials;
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.zcore.MPlugin;
import com.massivecraft.factions.zcore.util.TextUtil;
import net.milkbowl.vault.permission.Permission;
import org.bukkit.Bukkit;
import org.bukkit.OfflinePlayer;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.event.player.AsyncPlayerChatEvent;
import org.bukkit.plugin.Plugin;
import org.bukkit.plugin.RegisteredServiceProvider;

import java.lang.reflect.Modifier;
import java.lang.reflect.Type;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.util.logging.Level;


public class P extends MPlugin {

    // Our single plugin instance.
    // Single 4 life.
    public static P p;
    public static Permission perms = null;

    // Persistence related
    private boolean locked = false;

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

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

    private Integer AutoLeaveTask = null;

    // Commands
    public FCmdRoot cmdBase;
    public CmdAutoHelp cmdAutoHelp;

    private boolean hookedPlayervaults;
    private PlaceholderAPIManager placeholderAPIManager;

    public P() {
        p = this;
    }

    @Override
    public void onEnable() {
        if (!preEnable()) {
            return;
        }
        this.loadSuccessful = false;
        saveDefaultConfig();

        // Load Conf from disk
        Conf.load();
        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;
            }
            faction.addFPlayer(fPlayer);
        }
        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);

        // Register Event Handlers
        getServer().getPluginManager().registerEvents(new FactionsPlayerListener(this), this);
        getServer().getPluginManager().registerEvents(new FactionsChatListener(this), this);
        getServer().getPluginManager().registerEvents(new FactionsEntityListener(this), this);
        getServer().getPluginManager().registerEvents(new FactionsExploitListener(), this);
        getServer().getPluginManager().registerEvents(new FactionsBlockListener(this), this);

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

        setupPlaceholderAPI();
        postEnable();
        this.loadSuccessful = true;
    }

    private void setupPlaceholderAPI() {
        Plugin plugin = getServer().getPluginManager().getPlugin("PlaceholderAPI");
        if (plugin != null && plugin.isEnabled()) {
            this.placeholderAPIManager = new PlaceholderAPIManager();
            this.placeholderAPIManager.hook();
            log(Level.INFO, "Found PlaceholderAPI. Adding hooks.");
        }
    }

    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();

        return new GsonBuilder().setPrettyPrinting().disableHtmlEscaping().excludeFieldsWithModifiers(Modifier.TRANSIENT, Modifier.VOLATILE).registerTypeAdapter(LazyLocation.class, new MyLocationTypeAdapter()).registerTypeAdapter(mapFLocToStringSetType, new MapFLocToStringSetTypeAdapter()).registerTypeAdapterFactory(EnumTypeAdapter.ENUM_FACTORY);
    }

    @Override
    public void onDisable() {
        // only save data if plugin actually completely loaded successfully
        if (this.loadSuccessful) {
            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();
    }

    @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);
    }


    // -------------------------------------------- //
    // 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();
    }

    // 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) {
        return perms == null || !perms.hasGroupSupport() ? " " : perms.getPrimaryGroup(Bukkit.getWorlds().get(0).toString(), player);
    }

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

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