package mx.trackermap.TrackerMap.android.details.commands

import android.os.Bundle
import android.util.Log
import android.util.TypedValue
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.ArrayAdapter
import androidx.appcompat.app.AlertDialog
import androidx.core.content.res.ResourcesCompat
import androidx.fragment.app.Fragment
import kotlinx.coroutines.DelicateCoroutinesApi
import mx.trackermap.TrackerMap.android.R
import mx.trackermap.TrackerMap.android.databinding.UnitDetailsCommandsBinding
import mx.trackermap.TrackerMap.android.details.UnitDetailsAdapter
import mx.trackermap.TrackerMap.android.shared.MarkerTransformations
import org.koin.androidx.viewmodel.ext.android.viewModel
import kotlin.time.ExperimentalTime

@DelicateCoroutinesApi
@ExperimentalTime
class UnitCommandsFragment: Fragment() {
    private var _binding: UnitDetailsCommandsBinding? = null
    private val binding get() = _binding!!

    private var deviceName: String? = null
    private var deviceCategory: String? = null

    private val unitCommandsViewModel: UnitCommandsViewModel by viewModel()

    override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View {
        _binding = UnitDetailsCommandsBinding.inflate(inflater, container, false)
        return binding.root
    }

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)

        binding.reportLoading.root.visibility = View.VISIBLE
        setupEvents()
    }

    override fun onResume() {
        super.onResume()

        setupObservers()
    }

    override fun onStop() {
        super.onStop()

        removeObservers()
    }

    override fun onDestroyView() {
        super.onDestroyView()
        _binding = null
    }

    private fun setupObservers() {
        unitCommandsViewModel.commands.observe(viewLifecycleOwner) { commands ->
            Log.d("UnitCommandsFragment", "Device commands - $commands")
            binding.reportLoading.root.visibility = View.GONE
            val context = activity!!.applicationContext
            val adapter = ArrayAdapter<String>(context, R.layout.simple_list_item_checked)
            adapter.addAll(commands.map { it.description })
            binding.commandsList.adapter = adapter
        }

        val id = arguments?.getInt(UnitDetailsAdapter.DEVICE_ID_ARG)
        deviceName = arguments?.getString(UnitDetailsAdapter.DEVICE_NAME_ARG)
        deviceCategory = arguments?.getString(UnitDetailsAdapter.DEVICE_CATEGORY_ARG)

        binding.nameDetail.text = deviceName
        context?.let {
            val metrics = it.resources.displayMetrics
            val icon = ResourcesCompat.getDrawable(
                it.resources,
                MarkerTransformations.categoryToResourceId(deviceCategory),
                it.theme
            )
            icon?.setBounds(0, 0,
                TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 40f, metrics).toInt(),
                TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 40f, metrics).toInt()
            )
            binding.nameDetail.setCompoundDrawables(
                icon, null, null, null
            )
        }
        binding.nameDetail.compoundDrawablePadding =
            resources.getDimensionPixelSize(R.dimen.card_icon_margin)
        unitCommandsViewModel.fetchCommands(id)
    }

    private fun removeObservers() {
        unitCommandsViewModel.commands.removeObservers(viewLifecycleOwner)
    }

    private fun setupEvents() {
        binding.commandsList.setOnItemClickListener { _, _, index, _ ->
            Log.d("UnitCommandsFragment", "Selected item at index - $index")
            binding.sendCommandButton.isEnabled = true
            unitCommandsViewModel.selectCommand(index)
        }
        binding.sendCommandButton.setOnClickListener {
            activity?.let {
                val builder = AlertDialog.Builder(it)
                builder.apply {
                    setMessage(getString(R.string.send_command_confirmation_text, deviceName))
                    setPositiveButton(R.string.shared_cancel) { dialogInterface, _ ->
                        dialogInterface.dismiss()
                    }
                    setNegativeButton(R.string.shared_send) { dialogInterface, _ ->
                        unitCommandsViewModel.sendCommand()
                        dialogInterface.dismiss()
                    }
                }
                builder.create().show()
            }
        }
    }
}