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package org.kawai.model;

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

import org.mentawai.list.ListData;
import org.mentawai.list.SimpleListData;

public class Language {

	private static final List<Language> LANGUAGES = new ArrayList<Language>(16);
	
	private final int id;
	private final String name;
	private final Locale loc;
	private final String imageFile;

    public Language(int code, String name, String locale, String imageFile) {
    	this.id = code;
    	this.name = name;
    	this.loc = getLocaleFromString(locale);
    	this.imageFile = imageFile;
    }
    
    public Language(int code, String name, String locale) {
    	this(code, name, locale, null);
    }
    
    public static void add(Language language) {
    	LANGUAGES.add(language);
    }
    
    public static Language getDefault() {
    	if (LANGUAGES.isEmpty()) throw new IllegalStateException("No languages were defined!");
    	return LANGUAGES.get(0);
    }

    public int getId() {
    	return id;
    }
    
    public String getName() {
    	return name;
    }
    
    public Locale getLocale() {
    	return loc;
    }
    
    public String getImageFile() {
    	return imageFile;
    }
    
    @Override
    public String toString() {
    	return name;
    }
    
    public static ListData getListData() {
    	SimpleListData list = new SimpleListData("languages");
    	for(Language l : LANGUAGES) {
    		list.add(l.getId(), l.getName());
    	}
    	return list;
    }
    
    public static Language fromId(int id) {
    	for(Language l : LANGUAGES) {
    		if (l.getId() == id) return l;
    	}
    	return null;
    }
    
    public static Language fromLocale(Locale loc) {
    	if (loc == null) return null;
    	for(Language l : LANGUAGES) {
    		if (l.getLocale().equals(loc)) return l;
    	}
    	for(Language l : LANGUAGES) {
    		if (l.getLocale().getLanguage().equals(loc.getLanguage())) {
    			return l;
    		}
    	}
    	return null;
    }
    
    public static Language fromLocale(String s) {
    	if (s == null) return null;
    	Locale loc = getLocaleFromString(s);
    	return fromLocale(loc);
    }
    
    public static Language fromName(String name) {
    	if (name == null) return null;
    	for(Language l : LANGUAGES) {
    		if (l.getName().equalsIgnoreCase(name)) return l;
    	}
    	return null;
    }
    
    public static Locale getLocaleFromString(String s) {
    	if (s == null) return null;
        String[] temp = s.split("_");
        if (temp.length == 1) {
            return new Locale(temp[0]);
        } else if (temp.length == 2) {
            return new Locale(temp[0], temp[1]);
        } else if (temp.length == 3) {
            return new Locale(temp[0], temp[1], temp[2]);
        }
        return null;
    }
    
    public static List<Language> all() {
    	return LANGUAGES;
    }
    
    public static void clear() {
    	LANGUAGES.clear();
    }
}