package com.hbm.util;

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

import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.client.gui.FontRenderer;
import net.minecraft.client.resources.I18n;

@SideOnly(Side.CLIENT)
public class I18nUtil {

	/**
	 * Simple wrapper for I18n, for consistency
	 * @param s
	 * @param args
	 * @return
	 */
	@SideOnly(Side.CLIENT)
	public static String resolveKey(String s, Object... args) {
		return I18n.format(s, args);
	}

	/**
	 * Wrapper for I18n but cuts up the result using NTM's line break character ($)
	 * @param s
	 * @param args
	 * @return
	 */
	@SideOnly(Side.CLIENT)
	public static String[] resolveKeyArray(String s, Object... args) {
		return resolveKey(s, args).split("\\$");
	}
	
	/**
	 * The same as autoBreak, but it also respects NTM's break character ($) for manual line breaking in addition to the automatic ones
	 * @param fontRenderer
	 * @param text
	 * @param width
	 * @return
	 */
	@SideOnly(Side.CLIENT)
	public static List<String> autoBreakWithParagraphs(FontRenderer fontRenderer, String text, int width) {

		String[] paragraphs = text.split("\\$");
		List<String> lines = new ArrayList();
		
		for(String paragraph : paragraphs) {
			lines.addAll(autoBreak(fontRenderer, paragraph, width));
		}
		
		return lines;
	}
	
	/**
	 * Turns one string into a list of strings, cutting sentences up to fit within the defined width if they were rendered in a GUI
	 * @param fontRenderer
	 * @param text
	 * @param width
	 * @return
	 */
	@SideOnly(Side.CLIENT)
	public static List<String> autoBreak(FontRenderer fontRenderer, String text, int width) {

		List<String> lines = new ArrayList();
		//split the text by all spaces
		String[] words = text.split(" ");
		
		//add the first word to the first line, no matter what
		lines.add(words[0]);
		//starting indent is the width of the first word
		int indent = fontRenderer.getStringWidth(words[0]);
		
		for(int w = 1; w < words.length; w++) {
			
			//increment the indent by the width of the next word + leading space
			indent += fontRenderer.getStringWidth(" " + words[w]);
			
			//if the indent is within bounds
			if(indent <= width) {
				//add the next word to the last line (i.e. the one in question)
				String last = lines.get(lines.size() - 1);
				lines.set(lines.size() - 1, last += (" " + words[w]));
			} else {
				//otherwise, start a new line and reset the indent
				lines.add(words[w]);
				indent = fontRenderer.getStringWidth(words[w]);
			}
		}
		
		return lines;
	}
}