package oppen.tva.io.history

import java.net.URI

class Tab(val index: Int) {
    val history = mutableListOf<URI>()

    fun add(uri: URI){
        history.add(uri)
    }

    fun add(address: String){
       history.add(URI.create(address))
    }

    fun getPrevious(): URI? {
        return when {
            history.size > 1 -> {
                history[history.size-2]
            }
            else -> {
                null
            }
        }
    }

    fun popHistory(){
        history.dropLast(1)
    }

    companion object{
        fun new(index: Int, address: String): Tab {
            val tab = Tab(index)
            tab.add(address)
            return tab
        }
    }
}