ivanov

import java.io.File

data class Node<T>(val value: T, var next: Node<T>? = null) {
    constructor(value: T): this(value, null)
}
data class President (val firstName:String,val middleName: String = "", val lastName: String, val yearStart:Int, val yearEnd:Int, val party:String) {
    constructor(firstName: String, lastName: String, yearStart: Int, yearEnd: Int, party: String) : this(firstName, "", lastName, yearStart, yearEnd, party)
}

class MyList<T> {
    private var head: Node<T>? = null
    private var tail: Node<T>? = null
    var size = 0
    fun add(new: Node<T>) {
        if(head == null) {
            head = new
            tail = new
        } else {
            var tmp = head
            if (tmp != null)
                while(tmp?.next != null)
                    tmp = tmp.next
            tmp?.next = new
            tail = new
        }
        size++
    }
    fun show() {
        var tmp = head
        while(tmp != null) {
            println(tmp.value)
            tmp = tmp.next
        }
    }

}

fun main(args:Array<String>) {

    val file = File("res/presidents.txt").readLines()
    val presidents = MyList<President>()
    file.forEach {
        val words = it.split("\\s".toRegex())

        val p = if(words.size == 4) {
            val years = words[2].split("[–-]".toRegex()).map{x -> x.toInt()}
            President(words[0], words[1], years[0], years[1], words[3])
            } else {
            val years = words[3].split("[–-]".toRegex()).map{x -> x.toInt()}
            President(words[0], words[1], words[2], years[0], years[1], words[4])
            }

        presidents.add(Node(p))

    }
    print(presidents.size)
    presidents.show()
}