package net.lacolaco.smileessence.view.adapter

import android.widget.BaseAdapter
import net.lacolaco.smileessence.util.UIHandler
import java.util.*

abstract class CustomListAdapter<out T> : BaseAdapter() {
    private var isNotifiable = true
    private var frozenList: List<T> = ArrayList()

    fun setNotifiable(notifiable: Boolean) {
        isNotifiable = notifiable
    }

    override fun getCount(): Int {
        return frozenList.size
    }

    override fun getItem(position: Int): T {
        return frozenList[position]
    }

    override fun getItemId(position: Int): Long {
        return position.toLong()
    }

    override fun notifyDataSetChanged() {
        frozenList = Collections.unmodifiableList(list)
        super.notifyDataSetChanged()
    }

    protected abstract val list: List<T>

    fun update() {
        if (isNotifiable) {
            updateForce()
        }
    }

    fun updateForce() {
        UIHandler().post { this.notifyDataSetChanged() }
    }
}