Auto commit Tue Mar 24 05:01:02 PM CDT 2026

app/src/main/java/com/mindmachine/mvp/MainActivity.kt

@@ -11,6 +11,7 @@ import androidx.compose.foundation.background
 import com.mindmachine.mvp.session.DurationSliderCard
 import com.mindmachine.mvp.session.SetupTimelineEditor
 import androidx.compose.foundation.clickable
+import androidx.compose.foundation.gestures.detectTapGestures
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
@@ -59,6 +60,7 @@ import androidx.compose.runtime.withFrameNanos
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.input.pointer.pointerInput
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.platform.LocalLifecycleOwner
 import androidx.compose.ui.semantics.contentDescription
@@ -405,6 +407,20 @@ fun ActiveSessionScreen(vm: MainViewModel, onFinish: () -> Unit, onBackToSetup:
     LaunchedEffect(ui.runtimeState) {
         showOverlay = shouldShowActiveControlsByDefault(ui.runtimeState)
     }
+    var brightnessOverlayVisible by remember { mutableStateOf(false) }
+    var brightnessOverlayToken by remember { mutableIntStateOf(0) }
+
+    LaunchedEffect(brightnessOverlayToken) {
+        if (!brightnessOverlayVisible) return@LaunchedEffect
+        delay(2500)
+        brightnessOverlayVisible = false
+    }
+
+    ApplyScreenBrightnessOverride(
+        enabled = true,
+        brightnessPercent = ui.settings.immersiveBrightnessPercent,
+    )
+
     val flashFrame by rememberSplitFlashFrame(
         isRunning = ui.runtimeState == RuntimeState.RUNNING,
         flashOnMs = ui.runtimeParams.flashOnMs,
@@ -420,9 +436,13 @@ fun ActiveSessionScreen(vm: MainViewModel, onFinish: () -> Unit, onBackToSetup:
         modifier = Modifier
             .fillMaxSize()
             .background(Color.Black)
-            .clickable {
-                if (!immersiveFullscreen) {
-                    showOverlay = !showOverlay
+            .pointerInput(immersiveFullscreen) {
+                detectTapGestures {
+                    brightnessOverlayVisible = true
+                    brightnessOverlayToken++
+                    if (!immersiveFullscreen) {
+                        showOverlay = !showOverlay
+                    }
                 }
             }
     ) {
@@ -464,6 +484,32 @@ fun ActiveSessionScreen(vm: MainViewModel, onFinish: () -> Unit, onBackToSetup:
             )
         }
 
+        if (brightnessOverlayVisible) {
+            Column(
+                Modifier
+                    .align(Alignment.TopCenter)
+                    .padding(top = 24.dp)
+                    .fillMaxWidth(0.45f)
+                    .background(Color.Black.copy(alpha = 0.72f))
+                    .padding(horizontal = 12.dp, vertical = 10.dp)
+            ) {
+                Text(
+                    text = "Brightness ${ui.settings.immersiveBrightnessPercent}%",
+                    color = Color.White,
+                    style = MaterialTheme.typography.bodyMedium,
+                )
+                Slider(
+                    value = ui.settings.immersiveBrightnessPercent.toFloat(),
+                    onValueChange = {
+                        vm.updateImmersiveBrightnessPercent(it.roundToInt())
+                        brightnessOverlayVisible = true
+                        brightnessOverlayToken++
+                    },
+                    valueRange = 5f..100f,
+                )
+            }
+        }
+
         if (showOverlay) {
             Column(
                 Modifier
@@ -492,6 +538,30 @@ fun ActiveSessionScreen(vm: MainViewModel, onFinish: () -> Unit, onBackToSetup:
     }
 }
 
+@Composable
+private fun ApplyScreenBrightnessOverride(enabled: Boolean, brightnessPercent: Int) {
+    val activity = LocalContext.current as? Activity ?: return
+    val window = activity.window
+
+    DisposableEffect(window) {
+        onDispose {
+            val reset = window.attributes
+            reset.screenBrightness = -1f
+            window.attributes = reset
+        }
+    }
+
+    LaunchedEffect(enabled, brightnessPercent) {
+        val params = window.attributes
+        params.screenBrightness = if (enabled) {
+            (brightnessPercent.coerceIn(5, 100) / 100f)
+        } else {
+            -1f
+        }
+        window.attributes = params
+    }
+}
+
 @Composable
 private fun ApplyImmersiveMode(enabled: Boolean, revealSignal: Int) {
     val context = LocalContext.current

app/src/main/java/com/mindmachine/mvp/data/SettingsRepository.kt

@@ -20,6 +20,7 @@ class SettingsRepository(private val context: Context) {
         val countdownSeconds = intPreferencesKey("countdown_seconds")
         val forceAudioWithoutHeadphones = booleanPreferencesKey("force_audio_without_headphones")
         val showImmersiveProgressBar = booleanPreferencesKey("show_immersive_progress_bar")
+        val immersiveBrightnessPercent = intPreferencesKey("immersive_brightness_percent")
         val lastPresetId = stringPreferencesKey("last_preset")
     }
 
@@ -32,6 +33,7 @@ class SettingsRepository(private val context: Context) {
                 ?: 5,
             forceAudioWithoutHeadphones = p[Keys.forceAudioWithoutHeadphones] ?: false,
             showImmersiveProgressBar = p[Keys.showImmersiveProgressBar] ?: true,
+            immersiveBrightnessPercent = (p[Keys.immersiveBrightnessPercent] ?: 100).coerceIn(5, 100),
             lastPresetId = p[Keys.lastPresetId],
         )
     }
@@ -55,6 +57,10 @@ class SettingsRepository(private val context: Context) {
         it[Keys.showImmersiveProgressBar] = value
     }
 
+    suspend fun updateImmersiveBrightnessPercent(value: Int) = context.dataStore.edit {
+        it[Keys.immersiveBrightnessPercent] = value.coerceIn(5, 100)
+    }
+
     suspend fun updateLastPreset(id: String) = context.dataStore.edit { it[Keys.lastPresetId] = id }
 
     private fun legacyCountdownStringToSeconds(raw: String?): Int? = when (raw) {

app/src/main/java/com/mindmachine/mvp/domain/Models.kt

@@ -36,6 +36,7 @@ data class AppSettings(
     val countdownSeconds: Int = 5,
     val forceAudioWithoutHeadphones: Boolean = false,
     val showImmersiveProgressBar: Boolean = true,
+    val immersiveBrightnessPercent: Int = 100,
     val lastPresetId: String? = null,
 )
 

app/src/main/java/com/mindmachine/mvp/session/MainViewModel.kt

@@ -295,6 +295,9 @@ class MainViewModel(
         settingsRepository.updateForceAudioWithoutHeadphones(value)
     }
     fun updateShowImmersiveProgressBar(value: Boolean) = viewModelScope.launch { settingsRepository.updateShowImmersiveProgressBar(value) }
+    fun updateImmersiveBrightnessPercent(value: Int) = viewModelScope.launch {
+        settingsRepository.updateImmersiveBrightnessPercent(value)
+    }
 
     fun startSession(): Boolean {
         val state = _ui.value