import java.io.*;
import java.nio.file.*;
import java.util.*;

public class DuplicateTranslationsSearcher {
	public static void main(String[] args) throws Exception {
		Map<String, List<String>> translatedStringsByLanguage = new TreeMap<>();
		Map<String, List<String>> untranslatedStringsByLanguage = new TreeMap<>();

		File poDir = new File(args[0]);
		for (File textdomain : poDir.listFiles()) if (textdomain.isDirectory()) {
			for (File poFile : textdomain.listFiles()) if (poFile.getName().endsWith(".po")) {
				String langName = poFile.getName();
				langName = langName.substring(0, langName.indexOf('.'));

				List<String> translated = translatedStringsByLanguage.get(langName);
				if (translated == null) {
					translated = new ArrayList<>();
					translatedStringsByLanguage.put(langName, translated);
				}

				List<String> untranslated = untranslatedStringsByLanguage.get(langName);
				if (untranslated == null) {
					untranslated = new ArrayList<>();
					untranslatedStringsByLanguage.put(langName, untranslated);
				}

				List<String> lines = Files.readAllLines(poFile.toPath());
				String curMsgID = null, curMsgStr = null;
				for (String l : lines) {
					if (curMsgID == null) {
						if (!l.startsWith("msgid")) continue;
						curMsgID = l.substring(l.indexOf("\"") + 1);
						curMsgID = curMsgID.substring(0, curMsgID.length() - 1);
						continue;
					}

					if (l.startsWith("\"")) {
						l = l.substring(0, l.length() - 1).substring(1);
						if (curMsgStr == null) {
							curMsgID += l;
						} else {
							curMsgStr += l;
						}
						continue;
					}

					if (curMsgStr == null) {
						if (l.startsWith("msgid_plural")) continue;
						if (!l.startsWith("msgstr")) throw new Exception(poFile.getPath() + ": Expected msgstr in line »" + l + "«");
						curMsgStr = l.substring(l.indexOf("\"") + 1);
						curMsgStr = curMsgStr.substring(0, curMsgStr.length() - 1);
						continue;
					}

					if (curMsgStr.isEmpty()) {
						untranslated.add(curMsgID);
					} else {
						translated.add(curMsgID);
					}
					curMsgID = null;
					curMsgStr = null;
				}
			}
		}

		System.out.println("Language | Translated | Untranslated | Duplicates");
		System.out.println("--- | --- | --- | ---");
		for (String lang : translatedStringsByLanguage.keySet()) {
			int duplicates = 0;
			for (String s : untranslatedStringsByLanguage.get(lang)) if (translatedStringsByLanguage.get(lang).contains(s)) ++duplicates;
			System.out.println(lang + " | " + translatedStringsByLanguage.get(lang).size() + " | " + untranslatedStringsByLanguage.get(lang).size() + " | " + duplicates);
		}
	}
}