package OOP.Java.lab_5

class Text(textString: String) {
    var textArray = arrayOf<Pair<Sentence, Punctuation>>()
    var rawText: String = ""
    val arrayOfSentences = splitSentences(textString)
    val arrayOfPunctuations: Array<Punctuation> = splitPunctuation(textString)

    init {
        val arrayOfSentences = splitSentences(textString)
        val arrayOfPunctuations: Array<Punctuation> = splitPunctuation(textString)

        for (i in arrayOfSentences.indices) {
            textArray += Pair(arrayOfSentences[i], arrayOfPunctuations[i])
        }

        this.rawText = getRawTextString(arrayOfSentences)


    }

    private fun splitSentences(textString: String): Array<Sentence> {
        return textString.split("[.!?] ?".toRegex()).filter { it.isNotEmpty() }.map { sentence -> Sentence(sentence) }.toTypedArray()
    }

    private fun splitPunctuation(textString: String): Array<Punctuation> {
        return textString.split("(?<=[.!?]) ?".toRegex()).filter { it.isNotEmpty() }.map { sentence -> Punctuation(sentence.last().toString()) }.toTypedArray()
    }

    private fun getRawTextString(arrayOfSentences: Array<Sentence>): String {
        return arrayOfSentences.joinToString("") { sentence -> sentence.arrayOfWords.joinToString("") }
    }

    fun palindromeSearch(): String {
        var results = arrayOf<String>()
        for (leftBoundary in 0 until this.rawText.length) {
            for (rightBoundary in this.rawText.length downTo leftBoundary + 1) {
                val subToC = this.rawText.substring(leftBoundary, rightBoundary)

                if (subToC.first().equals(subToC.last(), true) && subToC.equals(subToC.reversed(), true) && subToC.length >= 3) {
//                    println(subToC)
                    results += subToC
                }
            }
        }
        return results.maxBy { it.length }
    }

    fun checkStringInBoundaries(stringToCheck: String): Boolean {
        return stringToCheck.equals(stringToCheck.reversed(), true)
    }

    override fun toString(): String {
        var text = arrayOf<String>()
        this.textArray.forEach { text += it.first.toString() + it.second.toString() }
        return text.joinToString(" ")
    }
}