package com.gpl.rpg.atcontentstudio.utils;

import java.io.IOException;
import java.io.UnsupportedEncodingException;

import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;

import com.gpl.rpg.atcontentstudio.model.Workspace;
import com.gpl.rpg.atcontentstudio.utils.WeblateIntegration.WeblateTranslationUnit.Status;

public class WeblateIntegration {

	static final String WEBLATE_SIPASH_KEY = "Weblate Sip Hash";

	public static String weblateHash(String str, String ctx) {
		
		byte[] data = null;
		
		if (str != null) {
			byte[] strBytes;
			try {
				strBytes = str.getBytes("UTF-8");
				byte[] ctxBytes = ctx.getBytes("UTF-8");
				data = new byte[strBytes.length + ctxBytes.length];
				System.arraycopy(strBytes, 0, data, 0, strBytes.length);
				System.arraycopy(ctxBytes, 0, data, strBytes.length, ctxBytes.length);
			} catch (UnsupportedEncodingException e) {
				e.printStackTrace();
			}
			
		} else {
			try {
				data = ctx.getBytes("UTF-8");
			} catch (UnsupportedEncodingException e) {
				e.printStackTrace();
			}
		}
		
		return HashUtils.siphash(WEBLATE_SIPASH_KEY, data);
	}

	public static String getWeblateLabelURI(String text) {
		return "https://hosted.weblate.org/translate/andors-trail/game-content/"+Workspace.activeWorkspace.settings.translatorLanguage.getCurrentValue()+"/?checksum="+weblateHash(text, "");
	}

	public static class WeblateTranslationUnit {
		public enum Status {
			notAllowed, error, absent, notTranslated, warning, fuzzy, done
		}

		public Status status;
		public String translatedText;
	}

	public static WeblateTranslationUnit getTranslationUnit(String text) {
		WeblateTranslationUnit unit = new WeblateTranslationUnit();
		if (!Workspace.activeWorkspace.settings.useInternet.getCurrentValue()) {
			unit.status = Status.notAllowed;
			unit.translatedText = "Allow internet connection in the workspace settings to get translation status";
		} else if (Workspace.activeWorkspace.settings.translatorLanguage == null) {
			unit.status = Status.notAllowed;
			unit.translatedText = "Select a target language in the workspace settings to get translation status";
		} else {
			unit.status = Status.absent;
			unit.translatedText = "Cannot find this on weblate";
			String hash = weblateHash(text, "");
			try {
				Document wlDoc = Jsoup.connect(getWeblateLabelURI(text)).get();
				Element textArea = wlDoc.getElementById("id_"+hash+"_0");
				if (textArea != null) {
					String trans = textArea.text();
					if (trans != null) {
						unit.translatedText = trans.trim();
						if (unit.translatedText.isEmpty()) {
							unit.translatedText = "Not yet translated";
							unit.status = Status.notTranslated;
						} else {
							unit.status = Status.done;
						}
					}
					Element fuzzyBox = wlDoc.getElementById("id_"+hash+"_fuzzy");
					if (fuzzyBox != null && fuzzyBox.hasAttr("checked")) {
						if ("checked".equals(fuzzyBox.attr("checked"))) {
							unit.status = Status.fuzzy;
						}
					} else {
						Elements dangerZone = wlDoc.getElementsByAttributeValue("class", "panel panel-danger");
						if (dangerZone != null && !dangerZone.isEmpty()) {
							unit.status = Status.warning;
						}
					}
				}
			} catch (IOException e) {
				unit.status = Status.error;
				unit.translatedText = "Cannot connect to weblate: "+e.getMessage();
				e.printStackTrace();
			}
		}
		return unit;
	}


}