git forge of mine

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package ml.adamsprogs.bimba.search

import android.annotation.SuppressLint
import android.content.Context
import android.content.Intent
import android.location.Location
import android.location.LocationListener
import android.location.LocationManager
import android.net.ConnectivityManager
import android.os.Bundle
import android.os.Handler
import android.os.Looper
import android.util.Log
import android.view.View
import androidx.appcompat.app.AppCompatActivity
import androidx.appcompat.content.res.AppCompatResources
import androidx.core.view.WindowCompat
import androidx.recyclerview.widget.LinearLayoutManager
import com.google.openlocationcode.OpenLocationCode
import kotlinx.coroutines.*
import kotlinx.coroutines.Runnable
import ml.adamsprogs.bimba.R
import ml.adamsprogs.bimba.api.*
import ml.adamsprogs.bimba.databinding.ActivityResultsBinding
import ml.adamsprogs.bimba.departures.DeparturesActivity
import java.io.InputStream

class ResultsActivity : AppCompatActivity(), LocationListener {
	enum class Mode {
		MODE_LOCATION, MODE_SEARCH
	}

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

	private lateinit var adapter: BimbaResultsAdapter

	private val handler = Handler(Looper.getMainLooper())
	private var runnable = Runnable {}

	override fun onCreate(savedInstanceState: Bundle?) {
		super.onCreate(savedInstanceState)
		_binding = ActivityResultsBinding.inflate(layoutInflater)
		setContentView(binding.root)

		binding.resultsRecycler.layoutManager = LinearLayoutManager(this)
		adapter = BimbaResultsAdapter(layoutInflater, this, listOf()) {
			when (it) {
				is Stop -> {
					val intent = Intent(this, DeparturesActivity::class.java).apply {
						putExtra("code", it.code)
						putExtra("name", it.name)
					}
					startActivity(intent)
				}
				is Line -> {
					TODO("start line graph activity")
				}
			}
		}
		binding.resultsRecycler.adapter = adapter
		setSupportActionBar(binding.topAppBar)

		WindowCompat.setDecorFitsSystemWindows(window, false)

		@Suppress("DEPRECATION")  // fix_later getSerializable in API>=33
		when (intent.extras?.get("mode")) {
			Mode.MODE_LOCATION -> {
				supportActionBar?.title = "Stops nearby"
				locate()
			}
			Mode.MODE_SEARCH -> {
				val query = intent.extras?.getString("query")!!
				supportActionBar?.title = "Results for ‘$query’"
				getItemsByQuery(Server.get(this), query)
			}
		}
	}

	@SuppressLint("MissingPermission")
	private fun locate() {
		val locationManager = getSystemService(Context.LOCATION_SERVICE) as LocationManager
		locationManager.requestLocationUpdates(
			LocationManager.GPS_PROVIDER, 1000 * 60 * 10, 100f, this
		)
		handler.removeCallbacks(runnable)
		runnable = Runnable {
			showError(Error(0, R.string.error_gps, R.drawable.error_gps))
		}
		handler.postDelayed(runnable, 60 * 1000)
		locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER)
			?.let { onLocationChanged(it) }
	}

	override fun onLocationChanged(location: Location) {
		handler.removeCallbacks(runnable)
		val code = OpenLocationCode.encode(location.latitude, location.longitude)
		getItemsByLocation(Server.get(this), code)
	}

	override fun onResume() {
		super.onResume()
		@Suppress("DEPRECATION")  // fix_later getSerializable in API>=33
		if (intent.extras?.get("mode") == Mode.MODE_LOCATION) {
			locate()
		}
	}

	override fun onPause() {
		super.onPause()
		val locationManager = getSystemService(Context.LOCATION_SERVICE) as LocationManager
		locationManager.removeUpdates(this)
		handler.removeCallbacks(runnable)
	}

	override fun onDestroy() {
		super.onDestroy()
		val locationManager = getSystemService(Context.LOCATION_SERVICE) as LocationManager
		locationManager.removeUpdates(this)
		handler.removeCallbacks(runnable)
	}

	private fun getItemsByQuery(server: Server, query: String) {
		val cm = getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
		MainScope().launch {
			val itemsResult = queryItems(cm, server, query)
			val response = if (itemsResult.stream != null) {
				unmarshallItemResponse(itemsResult.stream)
			} else {
				null
			}
			if (itemsResult.error != null) {
				Log.e("Results.query", "$itemsResult")
				Log.e("Results.query", "$response")
				showError(itemsResult.error)
			} else {
				updateItems((response as ItemsSuccess).items)
			}
		}
	}

	private fun getItemsByLocation(server: Server, plusCode: String) {
		val cm = getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
		MainScope().launch {
			val itemsResult = locateItems(cm, server, plusCode)
			val response = if (itemsResult.stream != null) {
				unmarshallItemResponse(itemsResult.stream)
			} else {
				null
			}
			if (itemsResult.error != null) {
				Log.e("Results.location", "$itemsResult")
				Log.e("Results.location", "$response")
				showError(itemsResult.error)
			} else {
				updateItems((response as ItemsSuccess).items)
			}
		}
	}

	private fun showError(error: Error) {
		binding.resultsProgress.visibility = View.GONE
		binding.resultsRecycler.visibility = View.GONE
		binding.errorImage.visibility = View.VISIBLE
		binding.errorText.visibility = View.VISIBLE

		binding.errorText.text = getString(error.stringResource)
		binding.errorImage.setImageDrawable(AppCompatResources.getDrawable(this, error.imageResource))
	}

	private fun updateItems(items: List<Item>) {
		binding.resultsProgress.visibility = View.GONE
		adapter.update(items)
		if (items.isEmpty()) {
			binding.errorImage.visibility = View.VISIBLE
			binding.errorText.visibility = View.VISIBLE
			binding.resultsRecycler.visibility = View.GONE

			binding.errorText.text = getString(R.string.error_404)
			binding.errorImage.setImageDrawable(
				AppCompatResources.getDrawable(
					this,
					R.drawable.error_search
				)
			)
		} else {
			binding.resultsOverlay.visibility = View.GONE
			binding.errorImage.visibility = View.GONE
			binding.errorText.visibility = View.GONE
			binding.resultsRecycler.visibility = View.VISIBLE
		}
	}

	private suspend fun unmarshallItemResponse(stream: InputStream): ItemsResponse {
		return withContext(Dispatchers.IO) {
			ItemsResponse.unmarshal(stream)
		}
	}
}
Bimba.git
