class Wrapper {
	static def getDictionaryLineData(String line, String delimiter) {
		String[] parts = line.split(delimiter, 3)
		String word = parts[0]
		String transcription = parts.length > 1 && parts[1] =~ "^[a-zA-Z]+\$" ? parts[1] : ""

		int frequency
		try {
			int partsElement = transcription.isEmpty() ? 1 : 2
			frequency = (parts.length > partsElement ? parts[partsElement] : "0") as int
		} catch (Exception ignored) {
			frequency = -1
		}

		return [word, transcription, frequency]
	}


	static def wordToDigitSequence(Locale locale, String word, HashMap<String, String> sounds, boolean isTranscribed) {
		def sequence = new StringBuilder()

		final String normalizedWord = isTranscribed ? word : word.toUpperCase(locale)
		String currentSound = ""

		for (int i = 0, end = normalizedWord.length() - 1; i <= end; i++) {
			char currentChar = normalizedWord.charAt(i)
			char nextChar = i < end ? normalizedWord.charAt(i + 1) : 0
			int nextCharType = Character.getType(nextChar)

			currentSound += currentChar

			// charAt(i) returns "ΐ" as three separate characters, but they must be treated as one.
			if (
					locale.getLanguage() == "el"
					&& (nextCharType == Character.NON_SPACING_MARK || nextCharType == Character.ENCLOSING_MARK || nextCharType == Character.COMBINING_SPACING_MARK)
			) {
				continue
			}

			if (!isTranscribed || i == end || Character.isUpperCase(nextChar)) {
				if (!sounds.containsKey(currentSound)) {
					throw new IllegalArgumentException("Sound or layout entry '${currentSound}' does not belong to the language sound list: ${sounds}.")
				} else {
					sequence << sounds.get(currentSound)
					currentSound = ""
				}
			}
		}

		if (sequence.isEmpty()) {
			throw new IllegalArgumentException("The word does not contain any valid sounds.")
		}

		return sequence.toString()
	}


	static def getLanguageHash(File definitionFile, File dictionaryFile) {
		def definitionHash = definitionFile != null && definitionFile.exists() ? definitionFile.text.digest("SHA-256") : ""
		def dictionaryHash = dictionaryFile != null && dictionaryFile.exists() ? dictionaryFile.text.digest("SHA-256") : ""
		return definitionHash + dictionaryHash
	}
}

ext.DictionaryTools = Wrapper