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path: root/androidApp/src/main/java/mx/trackermap/TrackerMap/android/devices/DevicesFragment.kt
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package mx.trackermap.TrackerMap.android.devices

import android.content.Intent
import android.os.Bundle
import android.util.Log
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.recyclerview.widget.LinearLayoutManager
import kotlinx.coroutines.DelicateCoroutinesApi
import mx.trackermap.TrackerMap.android.databinding.DevicesFragmentBinding
import mx.trackermap.TrackerMap.android.details.DetailsActivity
import mx.trackermap.TrackerMap.android.shared.UnitRenderData
import mx.trackermap.TrackerMap.android.units.UnitFragment
import mx.trackermap.TrackerMap.android.units.UnitsViewModel
import mx.trackermap.TrackerMap.client.models.UnitInformation

@DelicateCoroutinesApi
class DevicesFragment(private val unitsViewModel: UnitsViewModel) : UnitFragment(unitsViewModel) {

    private var _binding: DevicesFragmentBinding? = null
    private val binding get() = _binding!!

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

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

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

        setupList()
    }

    override fun onResume() {
        super.onResume()

        setupObservers()
    }

    override fun onPause() {
        super.onPause()

        removeObservers()
    }

    private fun setupList() {
        binding.devicesList.layoutManager = LinearLayoutManager(
            context, LinearLayoutManager.VERTICAL,
            false
        )
        binding.devicesList.adapter = DevicesAdapter(emptyList(), null)
        binding.infoLoading.root.visibility = View.VISIBLE
    }

    @DelicateCoroutinesApi
    private fun setupObservers() {
        Log.d("DevicesFragment", "setupObservers()")
        unitsViewModel.units.observe(viewLifecycleOwner) { units ->
            Log.d("DevicesFragment", "Success $units")
            binding.infoLoading.root.visibility = View.GONE
            binding.devicesList.swapAdapter(
                DevicesAdapter(units, this::itemAction),
                false
            )
        }
    }

    private fun removeObservers() {
        Log.d("DevicesFragment", "removeObservers()")
        unitsViewModel.units.removeObservers(viewLifecycleOwner)
    }

    private fun itemAction(unit: UnitInformation, action: UnitRenderData.Action) {
        when (action) {
            UnitRenderData.Action.DETAILS,
            UnitRenderData.Action.REPORTS,
            UnitRenderData.Action.COMMANDS -> {
                Log.d("DevicesFragment", "Action: $action - Unit: $unit")
                val activity = requireActivity()
                val intent = Intent(activity.applicationContext, DetailsActivity::class.java)
                intent.putExtra(DetailsActivity.DEVICE_ID_EXTRA, unit.device.id)
                intent.putExtra(DetailsActivity.DEVICE_NAME_EXTRA, unit.device.name)
                intent.putExtra(DetailsActivity.DEVICE_CATEGORY_EXTRA, unit.device.category)
                intent.putExtra(DetailsActivity.ACTION_EXTRA, action)
                startActivity(intent)
            }
            UnitRenderData.Action.CLICK -> {
                unitsViewModel.selectUnit(unit)
            }
        }
    }
}