@AndroidEntryPoint
class RunFragment : Fragment(), EasyPermissions.PermissionCallbacks{

    private val mainViewModel: MainViewModel by viewModels()

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

    private lateinit var runAdapter: RunAdapter

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

        requestPermissions()

        binding.fab.setOnClickListener {
            findNavController().navigate(R.id.action_runFragment_to_trackingFragment)
        }

        binding.rvRuns.apply {
            runAdapter = RunAdapter()
            adapter = runAdapter
        }

        binding.spFilter.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
            override fun onItemSelected(adapter: AdapterView<*>?, view: View?, position: Int, id: Long) {
                mainViewModel.runsSortedByColumnName(SortType.findSortTypeByPosition(position)).observe(viewLifecycleOwner) {
                    runAdapter.submitList(it)
                }
            }
            override fun onNothingSelected(p0: AdapterView<*>?) {}
        }
    }

    private fun requestPermissions() {
        if (TrackingUtility.hasLocationPermission(requireContext())) {
            return
        }
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.Q) {
            EasyPermissions.requestPermissions(
                this,
                "You need to accept location permissions to use this app.",
                REQUEST_CODE_LOCATION_PERMISSION,
                Manifest.permission.ACCESS_FINE_LOCATION,
                Manifest.permission.ACCESS_COARSE_LOCATION,
            )
        } else {
            EasyPermissions.requestPermissions(
                this,
                "You need to accept location permissions to use this app.",
                REQUEST_CODE_LOCATION_PERMISSION,
                Manifest.permission.ACCESS_COARSE_LOCATION,
                Manifest.permission.ACCESS_FINE_LOCATION,
                Manifest.permission.ACCESS_BACKGROUND_LOCATION
            )
        }
    }

    override fun onRequestPermissionsResult(
        requestCode: Int,
        permissions: Array<out String>,
        grantResults: IntArray
    ) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults)
        EasyPermissions.onRequestPermissionsResult(requestCode, permissions, grantResults, this)
    }

    override fun onPermissionsGranted(requestCode: Int, perms: MutableList<String>) {
        if (EasyPermissions.somePermissionPermanentlyDenied(this, perms))
            AppSettingsDialog.Builder(this).build().show()
        else requestPermissions()
    }

    override fun onPermissionsDenied(requestCode: Int, perms: MutableList<String>) {}

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