package simplegyphy.view

import android.content.Context
import android.graphics.Color
import android.graphics.drawable.ColorDrawable
import android.support.v7.widget.RecyclerView
import android.view.View
import android.view.ViewGroup
import android.widget.LinearLayout
import com.bumptech.glide.Glide
import com.bumptech.glide.load.engine.DiskCacheStrategy
import com.bumptech.glide.load.resource.drawable.GlideDrawable
import com.bumptech.glide.request.animation.GlideAnimation
import com.bumptech.glide.request.target.GlideDrawableImageViewTarget
import org.jetbrains.anko.backgroundColor


class RecyclerViewGifAdapter(val context : Context) : RecyclerView.Adapter<GifTableViewHolder>(){

    var records = listOf<Image>()
        set(value) {
            field = value
            notifyItemRangeInserted(0, value.size)
        }

    private val itemsMeasures = mutableMapOf<Int, Pair<Int, Int>>()

    override fun getItemCount(): Int = records.size - (records.size % 2)

    override fun onBindViewHolder(holder: GifTableViewHolder, position: Int) {
        val image = records[position]
        val imageView = holder.image

        val placeholder = ColorDrawable(Color.BLUE)
        if (itemsMeasures.containsKey(position)){
            val (height, width) = itemsMeasures[position]!!
            imageView.setDimensions(height, width)
            placeholder.setBounds(0, height, width, 0)
        } else {
            placeholder.setBounds(0, image.height, image.width, 0)
        }


        Glide.with(context)
                .load(image.url)
//                .asGif()
                .diskCacheStrategy(DiskCacheStrategy.ALL)
                .placeholder(placeholder)
                .thumbnail(0.1f)
                .skipMemoryCache( true )
                .into(object : GlideDrawableImageViewTarget(imageView) {
                    override fun onResourceReady(resource: GlideDrawable, animation: GlideAnimation<in GlideDrawable>?) {
                        itemsMeasures[position] = Pair(resource.intrinsicHeight, resource.intrinsicWidth)
                        super.onResourceReady(resource, animation)
//
//                        imageView.setDimensions(resource.intrinsicHeight, resource.intrinsicWidth)
//                        imageView.setImageDrawable(resource)
//
//                        resource.setLoopCount(-1)
//                        resource.start()
                    }
                })
    }

    override fun onCreateViewHolder(parent: ViewGroup?, viewType: Int): GifTableViewHolder? {
        if (parent == null) return null
        val view = createView()
        return GifTableViewHolder(view)
    }

    private fun createView(): View {
        val layout = LinearLayout(context)
        layout.orientation = LinearLayout.VERTICAL
        layout.layoutParams = ViewGroup.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT)
        layout.backgroundColor = Color.RED

        val view = DynamicHeightImageView(context)
        view.id = Ids.GifItem
        view.layoutParams = ViewGroup.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT)
        layout.addView(view)

        return layout
    }
}