class AccountRecyclerAdapter(val context: Context?= null) :
    ListAdapter<Any, AccountRecyclerAdapter.DataHolder>(ItemComparator()) {

    private val listOfSelectedCardViews = arrayListOf<MaterialCardView>()

    private var listener: OnRecyclerItemClickListener? = null

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int) =
        DataHolder(
            ItemBsOrSiBinding.inflate(
                LayoutInflater.from(parent.context),
                parent,
                false
            )
        )

    override fun onBindViewHolder(holder: DataHolder, position: Int) {
        val currentItem = getItem(position)
        if (currentItem is ResultSILA) {
            holder.bind(currentItem)
            holder.itemView.setOnClickListener {
                listener?.onItemClick(position)
            }
            holder.itemView.setOnLongClickListener {
                listener?.onLongItemClick(position)

                val cardView = holder.itemView.findViewById<MaterialCardView>(R.id.card_view_item_bs_or_si)
                listOfSelectedCardViews.add(cardView)
                if(cardView.cardBackgroundColor == ContextCompat.getColorStateList(context!!, R.color.red_700_with_shading))
                    cardView.setCardBackgroundColor(ContextCompat.getColor(context, R.color.transparent))
                else if(cardView.cardBackgroundColor == ContextCompat.getColorStateList(context, R.color.transparent))
                    cardView.setCardBackgroundColor(ContextCompat.getColor(context, R.color.red_700_with_shading))

                true
            }
        } else if (currentItem is ResultBSLA) {
            holder.bind(currentItem)
            holder.itemView.setOnClickListener {
                listener?.onItemClick(position)
            }
            holder.itemView.setOnLongClickListener {
                listener?.onLongItemClick(position)

                val cardView = holder.itemView.findViewById<MaterialCardView>(R.id.card_view_item_bs_or_si)
                listOfSelectedCardViews.add(cardView)
                if(cardView.cardBackgroundColor == ContextCompat.getColorStateList(context!!, R.color.red_700_with_shading))
                    cardView.setCardBackgroundColor(ContextCompat.getColor(context, R.color.transparent))
                else if(cardView.cardBackgroundColor == ContextCompat.getColorStateList(context, R.color.transparent))
                    cardView.setCardBackgroundColor(ContextCompat.getColor(context, R.color.red_700_with_shading))

                true
            }
        }
    }

    fun setOnItemClickListener(listener: OnRecyclerItemClickListener?) {
        this.listener = listener
    }

    fun clearSelectedCardViewsBackground() {
        listOfSelectedCardViews.forEach {
            it.setCardBackgroundColor(ContextCompat.getColor(context!!, R.color.transparent))
        }
    }

    // converts "Mon, 14 Aug 2023 11:23:29 GMT" to "14.08.2023"
    private fun formatDateShort(date: String?): String {
        if(date == null)
            return ""
        val inputDate = date
        val inputFormat = SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss z", Locale.US)
        val date = inputFormat.parse(inputDate)

        val outputFormat = SimpleDateFormat("dd.MM.yyyy HH:mm:ss", Locale.US)
        val outputDate = outputFormat.format(date)
        return outputDate
    }

    @SuppressLint("DiffUtilEquals")
    class ItemComparator : DiffUtil.ItemCallback<Any>() {
        override fun areItemsTheSame(
            oldItem: Any,
            newItem: Any
        ): Boolean {
            return oldItem === newItem
        }

        override fun areContentsTheSame(
            oldItem: Any,
            newItem: Any
        ): Boolean {
            return oldItem == newItem
        }
    }

    inner class DataHolder(private val binding: ItemBsOrSiBinding) :
        RecyclerView.ViewHolder(binding.root) {

        private fun pxFromDp(dp: Int): Int {
            return (dp * context!!.resources.displayMetrics.density).toInt()
        }

        fun bind(item: ResultSILA) = with(binding) {
            if(item.name == null) {
                itemBsOrSiTv.text = item.sensorId.toString()
                itemBsOrSiId.visibility = View.GONE

                val param = itemBsOrSiTv.layoutParams as ViewGroup.MarginLayoutParams
                param.setMargins(pxFromDp(20),pxFromDp(5),pxFromDp(20),pxFromDp(10))
                itemBsOrSiTv.layoutParams = param
            } else {
                itemBsOrSiTv.text = item.name.toString()
                itemBsOrSiId.text = item.sensorId.toString()
            }

            dateBsOrSiTv.text = formatDateShort(item.dtLastConnected)

            if (item.colorT == "yellow")
                itemBsOrSiTemperature.setTextColor(ResourcesCompat.getColor(context!!.resources, R.color.yellow_notification, null))
            else if (item.colorT == "red")
                itemBsOrSiTemperature.setTextColor(ResourcesCompat.getColor(context!!.resources, R.color.red_notification, null))
            itemBsOrSiTemperature.text = item.temperature+"°C"

            if (item.colorH == "yellow")
                itemBsOrSiHumidity.setTextColor(ResourcesCompat.getColor(context!!.resources, R.color.yellow_notification, null))
            else if (item.colorH == "red")
                itemBsOrSiHumidity.setTextColor(ResourcesCompat.getColor(context!!.resources, R.color.red_notification, null))
            itemBsOrSiHumidity.text = item.humidity+"%"
        }

        fun bind(item: ResultBSLA) = with(binding) {
            itemBsOrSiTv.text = item.bsId.toString()
            dateBsOrSiTv.text = formatDateShort(item.dtLastConnected)

            itemBsOrSiId.visibility = View.GONE
            val param = itemBsOrSiTv.layoutParams as ViewGroup.MarginLayoutParams
            param.setMargins(pxFromDp(20),pxFromDp(5),pxFromDp(20),pxFromDp(10))
            itemBsOrSiTv.layoutParams = param

            if(item.batVoltage != "Нет информации") {
                itemBsOrSiHumidityText.text = context!!.resources.getString(R.string.voltage)
                itemBsOrSiHumidity.text = item.batVoltage+"B"
            } else
                itemBsOrSiHumidityContainer.visibility = View.GONE

            itemBsOrSiTemperatureContainer.visibility = View.GONE
            itemBsOrSiSeparator1.visibility = View.GONE
        }
    }
}

interface OnRecyclerItemClickListener {
    fun onItemClick(position: Int)

    fun onLongItemClick(position: Int)
}