package io.xdrm.todoleast.adapter


import android.graphics.PorterDuff
import android.opengl.Visibility
import android.support.v4.content.res.ResourcesCompat
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.BaseAdapter
import io.xdrm.lebonprix.R
import io.xdrm.lebonprix.model.Category
import io.xdrm.lebonprix.model.CategoryItem
import kotlinx.android.synthetic.main.category_item.view.*
import kotlin.math.round

class CategoryAdapter(private val dataSet: List<CategoryItem>) : BaseAdapter() {


    override fun getView(i: Int, convertView: View?, parent: ViewGroup) : View?{
        if( i >= dataSet.size )
            return null

        val item = dataSet[i]

        // inflate
        val repr: View = LayoutInflater.from(parent.context).inflate(R.layout.category_item, parent, false)

        // 1. status (selected or not)
        repr.selected.isChecked = item.selected
        repr.setOnClickListener { view ->
            item.selected = !item.selected
            view.selected.setChecked(item.selected)

            if( view.selected.isChecked ) setSelected(view)
            else                          setUnselected(view)
        }

        // 2. label
        repr.label.text = item.category.label

        // 3. count
        repr.count.text = round(item.count*100).toInt().toString() + " %"

        // hide if "ALL"
        if( item.category == Category.ALL )
            repr.count.visibility = View.INVISIBLE

        // 4. infer icon
        val category = Category.fromLabel(item.category.label)
        if( category != null )
            repr.icon.setImageResource(category!!.iconId)

        // 5. manage selected or not
        if( item.selected ) setSelected(repr)
        else                setUnselected(repr)

        return repr

    }


    override fun getCount() = dataSet.size
    override fun getItem(i: Int) = dataSet[i]
    override fun getItemId(i: Int) = i.toLong()


    private fun setSelected(v: View){
        val whiteColor = ResourcesCompat.getColor(v.resources, android.R.color.white, null)
        v.setBackgroundResource(R.drawable.rounded_category_item_bg_selected)
        v.label.setTextColor(whiteColor)
        v.icon.setColorFilter(0xffffffff.toInt(), PorterDuff.Mode.SRC_IN)
    }

    private fun setUnselected(v: View){
        v.setBackgroundResource(R.drawable.rounded_category_item_bg)
        val blackColor = ResourcesCompat.getColor(v.resources, android.R.color.black, null)
        v.label.setTextColor(blackColor)
        v.icon.clearColorFilter()
    }

}