feat: persist token and show connection state

app/src/main/java/com/example/tvcontroller/Settings.kt

@@ -0,0 +1,8 @@
+package com.example.tvcontroller
+
+object Settings {
+    enum class ConnectionState {
+        Unregistered,
+        Registered,
+    }
+}

app/src/main/java/com/example/tvcontroller/SettingsScreen.kt

@@ -40,7 +40,9 @@ fun SettingsScreen(deviceService: DeviceService, appViewModel: AppViewModel) {
             style = MaterialTheme.typography.headlineSmall
         )
         Text(
-            text = stringResource(id = R.string.server_connection_label) + ": " + stringResource(id = R.string.connection_state_disconnected),
+            text = stringResource(id = R.string.server_connection_label) + ": " + getConnectionStateString(
+                viewModel.connectionState
+            ),
             style = MaterialTheme.typography.bodyMedium
         )
         OutlinedTextField(
@@ -84,3 +86,11 @@ fun SettingsScreen(deviceService: DeviceService, appViewModel: AppViewModel) {
         }
     }
 }
+
+@Composable
+fun getConnectionStateString(state: Settings.ConnectionState): String {
+    return when (state) {
+        Settings.ConnectionState.Unregistered -> stringResource(id = R.string.connection_state_unregistered)
+        Settings.ConnectionState.Registered -> stringResource(id = R.string.connection_state_registered)
+    }
+}

app/src/main/java/com/example/tvcontroller/SettingsViewModel.kt

@@ -16,12 +16,28 @@ class SettingsViewModel(private val deviceService: DeviceService) : ViewModel()
         private set
     var registrationCode by mutableStateOf("")
         private set
+    var connectionState by mutableStateOf(Settings.ConnectionState.Unregistered)
+        private set
+
+    init {
+        checkConnectionState()
+    }
 
     fun connect() {
         //Log.i("SettingsScreen", "Save settings: $serverUrl, $deviceName, $registrationCode")
         viewModelScope.launch {
             deviceService.setServerAddress(serverAddress)
             deviceService.createIntegration(deviceName, registrationCode)
+            checkConnectionState()
+        }
+    }
+
+    private fun checkConnectionState() {
+        connectionState = if (deviceService.getToken().isEmpty()) {
+            Settings.ConnectionState.Unregistered
+            return
+        } else {
+            Settings.ConnectionState.Registered
         }
     }
 

app/src/main/java/com/example/tvcontroller/services/DeviceService.kt

@@ -18,6 +18,7 @@ private const val SHARED_PREFERENCES_NAME = "devices";
 class DeviceService(private val context: Context) {
     private var client = HttpClient(CIO)
     private var serverAddress: String = ""
+    private var token: String = ""
 
     init {
         loadPreferences()
@@ -25,20 +26,23 @@ class DeviceService(private val context: Context) {
 
     suspend fun createIntegration(name: String, code: String) {
         Log.i("DeviceService", "Creating integration for $name with code $code at $serverAddress")
-        val json = JSONObject()
+        val requestJson = JSONObject()
-        json.put("name", name)
+        requestJson.put("name", name)
-        json.put("code", code)
+        requestJson.put("code", code)
         try {
             val response: HttpResponse = client.request("http://$serverAddress/api/integrations") {
                 method = HttpMethod.Post
-                setBody(json.toString())
+                setBody(requestJson.toString())
                 headers {
                     append("Content-Type", "application/json")
                 }
             }
 
-            savePreferences()
             val body: String = response.body()
+            val responseJson = JSONObject(body)
+            token = responseJson.getString("token")
+            savePreferences()
+
             Log.i("DeviceService", "Response: ${response.status.value} $body")
         } catch (e: Exception) {
             Log.e("DeviceService", "Error creating integration", e)
@@ -48,6 +52,8 @@ class DeviceService(private val context: Context) {
     private fun loadPreferences() {
         val sharedPreferences = context.getSharedPreferences(SHARED_PREFERENCES_NAME, MODE_PRIVATE)
         serverAddress = sharedPreferences.getString("server_address", "")!!
+        token = sharedPreferences.getString("token", "")!!
+        Log.i("DeviceService", "Loaded preferences: $serverAddress $token")
     }
 
     private fun savePreferences() {
@@ -55,6 +61,7 @@ class DeviceService(private val context: Context) {
         val editor = sharedPreferences.edit()
         editor.apply {
             putString("server_address", serverAddress)
+            putString("token", token)
             apply()
         }
     }
@@ -66,4 +73,8 @@ class DeviceService(private val context: Context) {
     fun getServerAddress(): String {
         return serverAddress
     }
+
+    fun getToken(): String {
+        return token
+    }
 }

app/src/main/res/values/strings.xml

@@ -11,4 +11,6 @@
     <string name="save_button_label">Save</string>
     <string name="connect_button_label">Connect</string>
     <string name="server_address_label">Server address</string>
+    <string name="connection_state_unregistered">unregistered</string>
+    <string name="connection_state_registered">registered</string>
 </resources>