git forge of mine

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199


package ml.adamsprogs.bimba.search

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 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("[3.1] start line graph activity")
				}
			}
		}
		binding.resultsRecycler.adapter = adapter
		setSupportActionBar(binding.topAppBar)

		WindowCompat.setDecorFitsSystemWindows(window, false)

		@Suppress("DEPRECATION")  // fixme later getSerializable in API>=33
		when (intent.extras?.get("mode")) {
			Mode.MODE_LOCATION -> {
				supportActionBar?.title = getString(R.string.stops_nearby)
				locate()
			}
			Mode.MODE_SEARCH -> {
				val query = intent.extras?.getString("query")!!
				supportActionBar?.title = getString(R.string.results_for, query)
				getItemsByQuery(Server.get(this), query)
			}
		}
	}

	private fun locate() {
		try {
			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) }
		} catch (_: SecurityException) {
			// this won’t happen because we don’t start this activity without location permission
		}
	}

	override fun onLocationChanged(location: Location) {
		handler.removeCallbacks(runnable)
		getItemsByLocation(Server.get(this), Position(location.latitude, location.longitude))
	}

	override fun onResume() {
		super.onResume()
		@Suppress("DEPRECATION")  // fixme 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, position: Position) {
		val cm = getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
		MainScope().launch {
			val itemsResult = locateItems(cm, server, position)
			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
