/*
 *
 * PlaceholderAPI
 * Copyright (C) 2018 Ryan McCarthy
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 *
 *
 */
package me.clip.placeholderapi.commands;

import me.clip.placeholderapi.PlaceholderAPI;
import me.clip.placeholderapi.PlaceholderAPIPlugin;
import me.clip.placeholderapi.expansion.PlaceholderExpansion;
import me.clip.placeholderapi.expansion.cloud.CloudExpansion;
import me.clip.placeholderapi.util.Msg;
import me.rayzr522.jsonmessage.JSONMessage;
import net.md_5.bungee.api.chat.ClickEvent;
import net.md_5.bungee.api.chat.ComponentBuilder;
import net.md_5.bungee.api.chat.HoverEvent;
import net.md_5.bungee.api.chat.TextComponent;
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 java.util.List;
import java.util.Map;
import java.util.Map.Entry;

import static me.clip.placeholderapi.util.Msg.color;
import static me.clip.placeholderapi.util.Msg.msg;

public class ExpansionCloudCommands implements CommandExecutor {

	private PlaceholderAPIPlugin plugin;
	
	public ExpansionCloudCommands(PlaceholderAPIPlugin instance) {
		plugin = instance;
	}

	@Override
	public boolean onCommand(CommandSender s, Command c, String label, String[] args) {
		
		if (args.length == 1) {
			msg(s, "&bExpansion cloud commands",
			" ",
			"&b/papi ecloud status",
			"&fView status of the ecloud",
			"&b/papi ecloud list <all/author> (page)",
			"&fList all/author specific available expansions",
			"&b/papi ecloud info <expansion name>",
			"&fView information about a specific expansion available on the cloud",
            "&b/papi ecloud versioninfo <expansion name> <version>",
            "&fView information about a specific version of an expansion",
            "&b/papi ecloud placeholders <expansion name>",
            "&fView placeholders for an expansion",
			"&b/papi ecloud download <expansion name> (version)",
			"&fDownload an expansion from the ecloud",
			"&b/papi ecloud refresh",
			"&fFetch the most up to date list of expansions available.",
			"&b/papi ecloud clear",
			"&fClear the expansion cloud cache.");
			return true;
		}

		if (args[1].equalsIgnoreCase("refresh") || args[1].equalsIgnoreCase("update") || args[1].equalsIgnoreCase("fetch")) {
			msg(s, "&aRefresh task started. Use &f/papi ecloud list all &ain a few!!");
			plugin.getExpansionCloud().clean();
			plugin.getExpansionCloud().fetch();
			return true;
		}

		if (plugin.getExpansionCloud().getCloudExpansions().isEmpty()) {
			msg(s, "&7No cloud expansions are available at this time.");
			return true;
		}

		if (args[1].equalsIgnoreCase("clear")) {
			plugin.getExpansionCloud().clean();
			msg(s, "&aThe cache has been cleared!!");
			return true;
		}

		if (args[1].equalsIgnoreCase("status")) {
			
			msg(s, "&bThere are &f" + plugin.getExpansionCloud().getCloudExpansions().size() + " &bexpansions available on the cloud.",
			"&7A total of &f" + plugin.getExpansionCloud().getCloudAuthorCount() + " &7authors have contributed to the expansion cloud.");
			if (plugin.getExpansionCloud().getToUpdateCount() > 0) {
				msg(s, "&eYou have &f" + plugin.getExpansionCloud().getToUpdateCount()
						+ " &eexpansions installed that have updates available.");
			}
			
			return true;
		}

		if (args[1].equalsIgnoreCase("info")) {
			
			if (args.length < 3) {
				msg(s, "&cAn expansion name must be specified!");
				return true;
			}
			
			CloudExpansion expansion = plugin.getExpansionCloud().getCloudExpansion(args[2]);
			
			if (expansion == null) {
				msg(s, "&cNo expansion found by the name: &f" + args[2]);
				return true;
			}
			
			if (!(s instanceof Player)) {
				msg(s, (expansion.shouldUpdate() ? "&e" : "") + expansion.getName() + " &8&m-- &r" + expansion.getVersion().getUrl());
				return true;
			}
			
			Player p = (Player) s;
			
			msg(s, "&bExpansion&7: &f" + expansion.getName(),
					"&bAuthor: &f" + expansion.getAuthor(),
					"&bVerified: &f" + expansion.isVerified()
			);

			// latest version
            JSONMessage latestVersion = JSONMessage.create(color("&bLatest version: &f" + expansion.getLatestVersion()));
            latestVersion.tooltip(color("&bReleased: &f" + expansion.getTimeSinceLastUpdate()
                    + "\n&bUpdate information: &f" + expansion.getVersion().getReleaseNotes()
            ));
            latestVersion.send(p);

			// versions
            JSONMessage versions = JSONMessage.create(color("&bVersions available: &f" + expansion.getVersions().size()));
            versions.tooltip(color(String.join("&b, &f", expansion.getAvailableVersions())));
            versions.suggestCommand("/papi ecloud versioninfo " + expansion.getName() + " " + expansion.getLatestVersion());
            versions.send(p);

            // placeholders
            if (expansion.getPlaceholders() != null) {
                JSONMessage placeholders = JSONMessage.create(color("&bPlaceholders: &f" + expansion.getPlaceholders().size()));
                placeholders.tooltip(color(String.join("&b, &f", expansion.getPlaceholders())));
                placeholders.suggestCommand("/papi ecloud placeholders " + expansion.getName());
                placeholders.send(p);
            }
			return true;
		}

        if (args[1].equalsIgnoreCase("versioninfo")) {

            if (args.length < 4) {
                msg(s, "&cAn expansion name and version must be specified!");
                return true;
            }

            CloudExpansion expansion = plugin.getExpansionCloud().getCloudExpansion(args[2]);

            if (expansion == null) {
                msg(s, "&cNo expansion found by the name: &f" + args[2]);
                return true;
            }

            CloudExpansion.Version version = expansion.getVersion(args[3]);

            if (version == null) {
                msg(s, "&cThe version specified does not exist for expansion: &f" + expansion.getName());
                return true;
            }

            msg(s, "&bExpansion: " + (expansion.shouldUpdate() ? "&e" : "&f") + expansion.getName(),
                    "&bVersion: &f" + version.getVersion(),
                    "&bVersion info: &f" + version.getReleaseNotes());

            if (!(s instanceof Player)) {
                msg(s, "&bDownload url: " + version.getUrl());
                return true;
            }

            Player p = (Player) s;

            JSONMessage download = JSONMessage.create(color("&7Click to download this version"));
            download.suggestCommand("/papi ecloud download " + expansion.getName() + " " + version.getVersion());
            download.send(p);
            return true;
        }

        if (args[1].equalsIgnoreCase("placeholders")) {

            if (args.length < 3) {
                msg(s, "&cAn expansion name must be specified!");
                return true;
            }

            CloudExpansion expansion = plugin.getExpansionCloud().getCloudExpansion(args[2]);

            if (expansion == null) {
                msg(s, "&cNo expansion found by the name: &f" + args[2]);
                return true;
            }

            List<String> placeholders = expansion.getPlaceholders();

            if (placeholders == null) {
                msg(s, "&cThe expansion: &f" + expansion.getName() + " &cdoes not have any placeholders listed.",
                        "&7You should contact &f" + expansion.getAuthor() + " &7and ask for them to be added.");
                return true;
            }

            if (!(s instanceof Player) || plugin.getExpansionManager().getRegisteredExpansion(expansion.getName()) == null) {
                msg(s, "&bPlaceholders: &f" + placeholders.size(),
                        String.join("&a, &f"));
                return true;
            }

            Player p = (Player) s;
            JSONMessage message = JSONMessage.create(color("&bPlaceholders: &f" + placeholders.size()));
            message.then("\n");

            for (int i = 0 ; i < placeholders.size() ; i++) {
                if (i == placeholders.size()-1) {
                    message.then(placeholders.get(i));
                } else {
                    message.then(color(placeholders.get(i) + "&b, &f"));
                }
                message.tooltip(PlaceholderAPI.setPlaceholders(p, placeholders.get(i)));
            }

            message.send(p);
            return true;
        }

        if (args[1].equalsIgnoreCase("list")) {
			
			int page = 1;
			
			String author;
			boolean installed = false;
			
			if (args.length < 3) {
				msg(s, "&cIncorrect usage! &7/papi ecloud list <all/author/installed> (page)");
				return true;
			}
			
			author = args[2];
			
			if (author.equalsIgnoreCase("all")) {
				author = null;
			} else if (author.equalsIgnoreCase("installed")) {
				author = null;
				installed = true;
			}
			
			if (args.length >= 4) {
				try {
					page = Integer.parseInt(args[3]);
				} catch (NumberFormatException ex) {
					msg(s, "&cPage number must be an integer!");
					return true;
				}
			}
			
			if (page < 1) {
				msg(s, "&cPage must be greater than or equal to 1!");
				return true;
			}
			
			int avail;
			
			Map<Integer, CloudExpansion> ex;
			
			if (installed) {
				ex = plugin.getExpansionCloud().getAllInstalled();
			} else if (author == null) {
				ex = plugin.getExpansionCloud().getCloudExpansions();
			} else {
				ex = plugin.getExpansionCloud().getAllByAuthor(author);
			}
			
			if (ex == null || ex.isEmpty()) {
				msg(s, "&cNo expansions available" + (author != null ? " for author &f" + author : ""));
				return true;
			}
			
			avail = plugin.getExpansionCloud().getPagesAvailable(ex, 10);
			
			if (page > avail) {
				msg(s, "&cThere " + ((avail == 1) ? " is only &f" + avail + " &cpage available!" : "are only &f" + avail + " &cpages available!"));
				return true;
			}			
			
			msg(s, "&bShowing expansions for&7: &f" + (author != null ? author : (installed ? "all installed" : "all available"))+ " &8&m--&r &bamount&7: &f" + ex.size() + " &bpage&7: &f" + page + "&7/&f" + avail);
			
			ex = plugin.getExpansionCloud().getPage(ex, page, 10);
			
			if (ex == null) {
				msg(s, "&cThere was a problem getting the requested page...");
				return true;
			}
			
			msg(s, "&aGreen = Expansions you have");
			msg(s, "&6Gold = Expansions which need updated");
			
			if (!(s instanceof Player)) {
				
				for (Entry<Integer, CloudExpansion> expansion : ex.entrySet()) {
					if (expansion == null || expansion.getValue() == null) continue;
					msg(s, "&b" + (expansion.getKey()+1) + "&7: " + (expansion.getValue().shouldUpdate() ? "&6" : (expansion.getValue().hasExpansion() ? "&a" : "&7")) + expansion.getValue().getName() + " &8&m-- &r" + expansion.getValue().getVersion().getUrl());
				}
				
				return true;
			}  
			
			Player p = (Player) s;
			
			for (Entry<Integer, CloudExpansion> expansion : ex.entrySet()) {
				
				if (expansion == null || expansion.getValue() == null) {
					continue;
				}

                StringBuilder sb = new StringBuilder();
                if (expansion.getValue().shouldUpdate()) {
                    sb.append("&6Click to update to the latest version of this expansion\n\n");
                } else if (!expansion.getValue().hasExpansion()) {
                    sb.append("&bClick to download this expansion\n\n");
                } else {
                    sb.append("&aYou have the latest version of this expansion\n\n");
                }
                sb.append("&bAuthor&7: &f" + expansion.getValue().getAuthor() + "\n");
                sb.append("&bVerified&7: &f" + expansion.getValue().isVerified() + "\n");
                sb.append("&bLatest version&7: &f" + expansion.getValue().getVersion().getVersion() + "\n");
                sb.append("&bLast updated&7: &f" + expansion.getValue().getTimeSinceLastUpdate() + " ago\n");
                sb.append("\n" + expansion.getValue().getDescription());

                String msg = color("&b" + (expansion.getKey()+1) + "&7: " + (expansion.getValue().shouldUpdate() ? "&6" : (expansion.getValue().hasExpansion() ? "&a" : "")) + expansion.getValue().getName());

                String hover = color(sb.toString());

                JSONMessage line = JSONMessage.create(msg);
                line.tooltip(hover);
                line.suggestCommand("/papi ecloud info " + expansion.getValue().getName());
                line.send(p);
			}
			
			return true;
		}
		
		
		if (args[1].equalsIgnoreCase("download")) {
			
			if (args.length < 3) {
				msg(s, "&cAn expansion name must be specified!");
				return true;
			}
			
			CloudExpansion expansion = plugin.getExpansionCloud().getCloudExpansion(args[2]);
			
			if (expansion == null) {
				msg(s, "&cNo expansion found with the name: &f" + args[2]);
				return true;
			}
			
			PlaceholderExpansion loaded = plugin.getExpansionManager().getRegisteredExpansion(args[2]);
			
			if (loaded != null && loaded.isRegistered()) {
				PlaceholderAPI.unregisterPlaceholderHook(loaded.getIdentifier());
			}

			String version = expansion.getLatestVersion();

			if (args.length == 4) {
				version = args[3];
				if (expansion.getVersion(version) == null) {
					msg(s, "&cThe version you specified does not exist for &f" + expansion.getName());
					msg(s, "&7Available versions: &f" + expansion.getVersions().size());
					msg(s, String.join("&a, &f", expansion.getAvailableVersions()));
					return true;
				}
			}

			msg(s, "&aDownload starting for expansion: &f" + expansion.getName() + " &aversion: &f" + version);
			String player = ((s instanceof Player) ? s.getName() : null);
			plugin.getExpansionCloud().downloadExpansion(player, expansion, version);
			return true;
		}
		
		msg(s, "&cIncorrect usage! &b/papi ecloud");
		return true;
	}
	

	
}