feat: add ReadOnlySetting and corresponding UI component for displaying read-only settings

app-tv/src/main/java/hu/bbara/purefin/ui/screen/settings/TvSettingsScreen.kt

@@ -41,6 +41,7 @@ import hu.bbara.purefin.core.feature.settings.SettingsViewModel
 import hu.bbara.purefin.core.settings.BooleanSetting
 import hu.bbara.purefin.core.settings.DropdownSetting
 import hu.bbara.purefin.core.settings.RangeSetting
+import hu.bbara.purefin.core.settings.ReadOnlySetting
 import hu.bbara.purefin.core.settings.SettingOption
 import hu.bbara.purefin.core.settings.StringSetting
 import hu.bbara.purefin.core.settings.VoidSetting
@@ -149,6 +150,13 @@ private fun TvSettingOptionItem(
             }
         }
 
+        is ReadOnlySetting -> {
+            TvReadOnlySettingItem(
+                title = option.title,
+                value = option.value
+            )
+        }
+
         is VoidSetting -> {
             TvVoidSettingItem(
                 title = option.title,
@@ -200,6 +208,31 @@ private fun TvSettingsTopBar(
     }
 }
 
+@Composable
+private fun TvReadOnlySettingItem(
+    title: String,
+    value: String,
+    modifier: Modifier = Modifier
+) {
+    Row(
+        verticalAlignment = Alignment.CenterVertically,
+        horizontalArrangement = Arrangement.SpaceBetween,
+        modifier = modifier
+            .fillMaxWidth()
+            .padding(horizontal = 28.dp, vertical = 16.dp)
+    ) {
+        Text(
+            text = title,
+            style = MaterialTheme.typography.bodyLarge
+        )
+        Text(
+            text = value,
+            style = MaterialTheme.typography.bodyMedium,
+            color = MaterialTheme.colorScheme.onSurfaceVariant
+        )
+    }
+}
+
 @Composable
 private fun TvVoidSettingItem(
     title: String,

app/src/main/java/hu/bbara/purefin/ui/screen/settings/SettingsScreen.kt

@@ -24,6 +24,7 @@ import hu.bbara.purefin.core.feature.settings.SettingsViewModel
 import hu.bbara.purefin.core.settings.BooleanSetting
 import hu.bbara.purefin.core.settings.DropdownSetting
 import hu.bbara.purefin.core.settings.RangeSetting
+import hu.bbara.purefin.core.settings.ReadOnlySetting
 import hu.bbara.purefin.core.settings.SettingOption
 import hu.bbara.purefin.core.settings.StringSetting
 import hu.bbara.purefin.core.settings.VoidSetting
@@ -32,6 +33,7 @@ import hu.bbara.purefin.ui.screen.home.components.DefaultTopBarIconButton
 import hu.bbara.purefin.ui.screen.settings.components.BooleanSettingItem
 import hu.bbara.purefin.ui.screen.settings.components.DropdownSettingItem
 import hu.bbara.purefin.ui.screen.settings.components.RangeSettingItem
+import hu.bbara.purefin.ui.screen.settings.components.ReadOnlySettingItem
 import hu.bbara.purefin.ui.screen.settings.components.StringSettingItem
 import hu.bbara.purefin.ui.screen.settings.components.VoidSettingItem
 
@@ -138,6 +140,13 @@ private fun SettingOptionItem(
             }
         }
 
+        is ReadOnlySetting -> {
+            ReadOnlySettingItem(
+                title = option.title,
+                value = option.value
+            )
+        }
+
         is VoidSetting -> {
             VoidSettingItem(
                 title = option.title,

app/src/main/java/hu/bbara/purefin/ui/screen/settings/components/ReadOnlySettingItem.kt

@@ -0,0 +1,31 @@
+package hu.bbara.purefin.ui.screen.settings.components
+
+import androidx.compose.material3.ListItem
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+
+@Composable
+fun ReadOnlySettingItem(
+    title: String,
+    value: String,
+    modifier: Modifier = Modifier.Companion
+) {
+    ListItem(
+        headlineContent = {
+            Text(
+                text = title,
+                style = MaterialTheme.typography.bodyLarge
+            )
+        },
+        trailingContent = {
+            Text(
+                text = value,
+                style = MaterialTheme.typography.bodyMedium,
+                color = MaterialTheme.colorScheme.onSurfaceVariant
+            )
+        },
+        modifier = modifier
+    )
+}

core/src/main/java/hu/bbara/purefin/core/feature/update/AppUpdateController.kt

@@ -1,6 +1,8 @@
 package hu.bbara.purefin.core.feature.update
 
+import hu.bbara.purefin.core.settings.ReadOnlySetting
 import hu.bbara.purefin.core.settings.SettingGroup
+import hu.bbara.purefin.core.settings.SettingOption
 import hu.bbara.purefin.core.settings.SettingsGroupProvider
 import hu.bbara.purefin.core.settings.VoidSetting
 import kotlinx.coroutines.flow.Flow
@@ -18,7 +20,8 @@ import javax.inject.Singleton
 @Singleton
 class AppUpdateController @Inject constructor(
     private val appUpdateRepository: AppUpdateRepository,
-    private val appUpdateInstaller: AppUpdateInstaller
+    private val appUpdateInstaller: AppUpdateInstaller,
+    private val appVersionProvider: AppVersionProvider
 ) : SettingsGroupProvider {
     private val _isCheckingForUpdates = MutableStateFlow(false)
     val isCheckingForUpdates: StateFlow<Boolean> = _isCheckingForUpdates.asStateFlow()
@@ -34,16 +37,17 @@ class AppUpdateController @Inject constructor(
 
     override val settingGroups: Flow<List<SettingGroup>> = availableUpdate
         .map { update ->
-            if (update == null) {
-                emptyList()
-            } else {
-                listOf(
-                    SettingGroup(
-                        title = "App",
-                        options = listOf(installUpdateSetting(update))
-                    )
+            val options = listOfNotNull<SettingOption<*>>(
+                buildNumberSetting(),
+                update?.let { installUpdateSetting(it) }
+            )
+
+            listOf(
+                SettingGroup(
+                    title = "App",
+                    options = options
                 )
-            }
+            )
         }
 
     suspend fun checkForUpdates(
@@ -100,7 +104,14 @@ class AppUpdateController @Inject constructor(
         )
     }
 
+    private fun buildNumberSetting() = ReadOnlySetting(
+        key = BUILD_NUMBER_KEY,
+        title = "Build number",
+        value = appVersionProvider.versionCode.toString()
+    )
+
     private companion object {
+        const val BUILD_NUMBER_KEY = "build_number"
         const val INSTALL_APP_UPDATE_KEY = "install_app_update"
     }
 }

core/src/main/java/hu/bbara/purefin/core/settings/SettingOption.kt

@@ -25,6 +25,14 @@ data class StringSetting(
     override val defaultValue: String
 ) : SettingOption<String>
 
+data class ReadOnlySetting(
+    override val key: String,
+    override val title: String,
+    val value: String
+) : SettingOption<String> {
+    override val defaultValue: String = value
+}
+
 data class VoidSetting(
     override val key: String,
     override val title: String,