package command;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

import org.json.simple.JSONArray;
import org.json.simple.JSONObject;

import net.dv8tion.jda.core.Permission;
import net.dv8tion.jda.core.events.message.guild.GuildMessageReceivedEvent;
import pw.naltan.pherrous.core.objects.AssetKey;
import pw.naltan.pherrous.engine.builders.ManualBuilder;
import pw.naltan.pherrous.interfaces.Assets;
import pw.naltan.pherrous.interfaces.GuildCommand;
import pw.naltan.pherrous.interfaces.GuildMessage;
import pw.naltan.pherrous.interfaces.Indexable;
import pw.naltan.pherrous.interfaces.Manual;
import pw.naltan.pherrous.io.Input;
import pw.naltan.pherrous.io.Output;

public class Lizzy implements GuildCommand, Indexable, Manual, Assets, GuildMessage {

	AssetKey key;
	List<String> responses;
	int chance;

	@Override
	public ManualBuilder man(GuildMessageReceivedEvent e, ManualBuilder man) {
		return man.setAuthor("Nathan")
				.setVersion("2.0")
				.addArg("freq <number>", "Set the percent frequency of Lizzy's responses.")
				.addArg("add <response>", "Add a response.")
				.addArg("remove <response>", "Remove a response.")
				.addArg("list", "Get a list of responses.")
				.addArg("invoke", "Invoke a response.")
				;
	}

	@Override
	public String category() {
		return "Fun";
	}

	@Override
	public String name() {
		return "Lizzy";
	}

	@SuppressWarnings("unchecked")
	@Override
	public void cmd(GuildMessageReceivedEvent e) {

		String opt = "";
		try {
			opt = e.getMessage().getContentRaw().toLowerCase().split(" ")[1];
		} catch (Exception ex) {
			opt = "";
		}
		switch(opt) {
		case "add":
			add(e);
			return;

		case "remove":
			remove(e);
			return;

		case "invoke":
			invoke(e);
			return;

		case "freq":
			freq(e);
			return;

		case "list":
			String out = "Here's my repsonses\nMy chance to comment is " + chance + "%n";
			int remaining = responses.size() - 1;
			while(out.length() < 2000) {
				remaining--;
				out += "\n" + responses.get(remaining);
			}
			Output.outAsText(e.getChannel(), out);
		}

	}

	private void add(GuildMessageReceivedEvent e) {
		String add = "";
		try {
			add = e.getMessage().getContentRaw().split(" ")[2];
		} catch(Exception ex) {
			Output.outAsText(e.getChannel(), "Enter a response");
		}
		responses.add(add);
		updateJSON();
		Output.outAsText(e.getChannel(), "Successfully added " + add + ".");
	}

	private void remove(GuildMessageReceivedEvent e) {
		String del = "";
		try {
			del = e.getMessage().getContentRaw().split(" ")[2];
		} catch(Exception ex) {
			Output.outAsText(e.getChannel(), "Enter a response");
		}
		boolean success = responses.remove(del);
		String out = "That response doesn't exist";
		if(success) {
			out = "Removal successful!";
		}
		Output.outAsText(e.getChannel(), out);
	}

	private void invoke(GuildMessageReceivedEvent e) {
		Output.outAsText(e.getChannel(), responses.get(new Random().nextInt(responses.size() - 1)));
	}

	private void freq(GuildMessageReceivedEvent e) {
		int freq = 0;
		try {
			freq = Integer.parseInt(e.getMessage().getContentRaw().split(" ")[2]);

			if(freq < 0 || freq > 100) {
				throw new Exception();
			}
		} catch (Exception ex) {
			Output.outAsText(e.getChannel(), "Enter a number (0 < n < 100)");
		}
		chance = freq;
		updateJSON();
	}

	@Override
	public void reqperms(List<Permission> req) {
	}

	@Override
	public String assetDir() {
		return "lizzy";
	}

	@SuppressWarnings("unchecked")
	@Override
	public void key(AssetKey key) {
		this.key = key;
		responses = new ArrayList<String>();
		JSONObject obj = key.readJSON("lizzy");
		try {
			JSONArray arr = (JSONArray) obj.get("responses");
			for(Object current : arr) {
				responses.add((String) current);
			}
			chance = (int) obj.get("chance");
		} catch (Exception ex) {
			JSONArray arr = new JSONArray();
			arr.add("You have such a way with words, Dizzy...");

			JSONObject def = new JSONObject();
			def.put("responses", arr);
			def.put("chance", 20);
			key.writeJSON("lizzy", def);
		}
	}

	@SuppressWarnings("unchecked")
	private void updateJSON() {
		JSONArray array = new JSONArray();
		for(String current : responses) {
			array.add(current);
		}
		JSONObject out = new JSONObject();
		out.put("responses", array);
		out.put("chance", chance);
		key.writeJSON("lizzy", out);
	}

	@Override
	public void msg(GuildMessageReceivedEvent e) {
		if(e.getAuthor().getId().equals("251216694503145472") && new Random().nextInt(100) <= chance) {
			Output.outAsText(e.getChannel(), responses.get(new Random().nextInt(responses.size()-1)));
		}
	}
}