import android.view.LayoutInflater
import android.view.ViewGroup
import androidx.databinding.DataBindingUtil
import androidx.databinding.ViewDataBinding
import androidx.recyclerview.widget.RecyclerView

/**
* NB : Used in RS
*/
open class AnyViewModelAdapter<MODEL, BINDING : ViewDataBinding>(
    val layoutId: Int,
    val items: MutableList<MODEL>,
    val clickHandler: ((data: MODEL) -> Unit)? = null
) : RecyclerView.Adapter<AnyViewModelHolder<MODEL, BINDING>>() {

    constructor(layoutId: Int, clickHandler: ((data: MODEL) -> Unit)?) : this(layoutId, mutableListOf(), clickHandler)
    constructor(layoutId: Int) : this(layoutId, mutableListOf(), null)

    protected lateinit var binding: BINDING

    open fun onBindedViewHolder(holder: AnyViewModelHolder<MODEL, BINDING>, data: MODEL) {}

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): AnyViewModelHolder<MODEL, BINDING> {
        return AnyViewModelHolder(
            DataBindingUtil.inflate(
                LayoutInflater.from(parent.context),
                layoutId,
                parent,
                false
            )
        )
    }

    override fun getItemCount(): Int = items.size

    override fun onBindViewHolder(holder: AnyViewModelHolder<MODEL, BINDING>, position: Int) {
        holder.bind(items[position])

        clickHandler?.let { handler ->
            holder.itemView.setOnClickListener {
                handler(items[position])
            }
        }

        onBindedViewHolder(holder, items[position])
    }

    fun replace(newItems: List<MODEL>, notify: Boolean = true) {
        items.clear()
        items.addAll(newItems)
        if (notify) notifyDataSetChanged()
    }

}