class FarmAdapter(val mFarms: ArrayList<FarmModel>,
                  val itemClick: (FarmModel) -> Unit) :
        RecyclerView.Adapter<FarmAdapter.ViewHolder>() {

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
        val view = LayoutInflater.from(parent.context).inflate(R.layout.item_farm, parent, false)
        return FarmAdapter.ViewHolder(view, itemClick)
    }

    override fun onBindViewHolder(holder: FarmAdapter.ViewHolder, position: Int) {
        holder.bindForecast(mFarms[position])
    }

    override fun getItemCount() = mFarms.size

    class ViewHolder(view: View,
                     val itemClick: (FarmModel) -> Unit) : RecyclerView.ViewHolder(view) {

        fun bindForecast(farm: FarmModel) {
            with(farm) {
                itemView.textViewFarm.text = farm.name
                itemView.constraintLayoutItemFarm.setOnClickListener{ itemClick(this) }
            }
        }
    }

    fun addItem(farm : FarmModel) {
        mFarms.add(farm)
        this.notifyDataSetChanged()
    }

    fun  updateItem(updated: FarmModel) {

        mFarms
                .filter { it.key == updated.key }
                .forEach { it.name = updated.name }
        this.notifyDataSetChanged()
    }

    fun removeItem(farm: FarmModel) {
        mFarms.remove(farm)
        this.notifyDataSetChanged()
    }
}