package com.dre.brewery;

import java.util.ArrayList;
import java.util.Map;

import org.bukkit.configuration.file.FileConfiguration;
import org.bukkit.event.player.AsyncPlayerChatEvent;

import com.dre.brewery.BPlayer;

public class Words {

	//represends Words and letters, that are replaced in drunk players messages

	public static ArrayList<Words> words = new ArrayList<Words>();
	public static FileConfiguration config;

	private String from;
	private String to;
	private String[] pre;
	private Boolean match = false;
	private int alcohol = 1;
	private int percentage = 100;

	public Words(Map<?,?> part){
		for(Map.Entry<?,?> wordPart : part.entrySet()){
			String key = (String) wordPart.getKey();

			if(wordPart.getValue() instanceof String){

				if(key.equalsIgnoreCase("replace")){
					this.from = (String) wordPart.getValue();
				} else if (key.equalsIgnoreCase("to")){
					this.to = (String) wordPart.getValue();
				} else if (key.equalsIgnoreCase("pre")){
					String fullPre = (String) wordPart.getValue();
					this.pre = fullPre.split(",");
				}

			} else if (wordPart.getValue() instanceof Boolean){

				if(key.equalsIgnoreCase("match")){
					this.match = (Boolean) wordPart.getValue();
				}

			} else if (wordPart.getValue() instanceof Integer){

				if(key.equalsIgnoreCase("alcohol")){
					this.alcohol = (Integer) wordPart.getValue();
				} else if (key.equalsIgnoreCase("percentage")){
					this.percentage = (Integer) wordPart.getValue();
				}

			}
		}
		if(this.from != null && this.to != null){
			words.add(this);
		}
	}

	//Distort players words when he talks
	public static void playerChat(AsyncPlayerChatEvent event){
		BPlayer bPlayer = BPlayer.get(event.getPlayer().getName());
		if(bPlayer != null){
			if(words.isEmpty()){
				//load when first drunk player talks
				load();
			}
			if(!words.isEmpty()){
				String message = event.getMessage();
				for(Words w:words){
					if(w.alcohol <= bPlayer.getDrunkeness()){
						message = distort(message, w.from, w.to, w.pre, w.match, w.percentage);
					}
				}
				event.setMessage(message);
			}
		}
	}

	//replace "percent"% of "from" -> "to" in "words", when the string before each "from" "match"es "pre"
	//Not yet ignoring case :(
	public static String distort(String words, String from, String to, String[] pre, boolean match, int percent){
		if(from.equalsIgnoreCase("-end")){
			from = words;
			to = words+to;
		} else if (from.equalsIgnoreCase("-start")){
			from = words;
			to = to+words;
		}else if (from.equalsIgnoreCase("-space")){
			from = " ";
		}else if (from.equalsIgnoreCase("-random")){
			//inserts "to" on a random position in "words"
			int charIndex = (int) (Math.random() * (words.length() - 1));
			if(charIndex > words.length() / 2){
				from = words.substring(charIndex);
				to = to+from;
			} else {
				from = words.substring(0,charIndex);
				to = from+to;
			}
		}

		if (words.contains(from)){
			//some characters (*,?) disturb split() which then throws PatternSyntaxException
			try{
				if(pre == null && percent == 100){
					//All occurences of "from" need to be replaced
					return words.replaceAll(from,to);
				}
				String newWords = "";
				if(words.endsWith(from)){
					//add space to end to recognize last occurence of "from"
					words = words+" ";
				}
				//remove all "from" and split "words" there
				String[] splitted = words.split(from);
				int index = 0;
				String part = null;

				//if there are occurences of "from"
				if(splitted.length > 1){
					//- 1 because dont add "to" to the end of last part
					while(index < splitted.length - 1){
						part = splitted[index];
						//add current part of "words" to the output
						newWords = newWords+part;
						//check if the part ends with correct string
						
						if(doesPreMatch(part, pre, match) && Math.random() * 100.0 <= percent){
							//add replacement
							newWords = newWords+to;
						} else {
							//add original
							newWords = newWords+from;
						}
						index++;
					}
					//add the last part to finish the sentence
					part = splitted[index];
					if(part.equals(" ")){
						//dont add the space to the end
						return newWords;
					} else {
						return newWords + part;
					}
				}
			} catch (java.util.regex.PatternSyntaxException e) {
				//e.printStackTrace();
				return words;
			}
		}
		return words;
	}

	public static boolean doesPreMatch(String part,String[] pre,boolean match){
		boolean isBefore = !match;
		if(pre != null){
			for(String pr:pre){
				if(match == true){
					//if one is correct, it is enough
					if(part.endsWith(pr) == match){
						isBefore = true;
						break;
					}
				} else {
					//if one is wrong, its over
					if(part.endsWith(pr) != match){
						isBefore = false;
						break;
					}
				}
			}
		} else {
			isBefore = true;
		}
		return isBefore;
	}

	//load from config file
	public static void load(){
		if(config != null){
			for(Map<?,?> map:config.getMapList("words")){
				new Words(map);
			}
		}
	}


}