PeachAppNavHost.kt

1package com.peachpasswords.ui23import androidx.compose.animation.EnterTransition4import androidx.compose.animation.ExitTransition5import androidx.compose.animation.core.tween6import androidx.compose.animation.fadeIn7import androidx.compose.animation.fadeOut8import androidx.compose.animation.slideInVertically9import androidx.compose.animation.slideOutVertically10import androidx.compose.foundation.layout.Box11import androidx.compose.foundation.layout.fillMaxSize12import androidx.compose.runtime.Composable13import androidx.compose.runtime.LaunchedEffect14import androidx.compose.runtime.getValue15import androidx.compose.ui.Modifier16import androidx.compose.ui.platform.LocalContext17import androidx.hilt.navigation.compose.hiltViewModel18import androidx.lifecycle.compose.collectAsStateWithLifecycle19import androidx.navigation.NavHostController20import androidx.navigation.NavType21import androidx.navigation.compose.NavHost22import androidx.navigation.compose.composable23import androidx.navigation.compose.currentBackStackEntryAsState24import androidx.navigation.compose.rememberNavController25import androidx.navigation.navArgument26import com.peachpasswords.PendingAction27import com.peachpasswords.PendingActionQueue28import com.peachpasswords.autofill.AutofillNavRepository29import com.peachpasswords.autofill.AutofillNavViewModel30import com.peachpasswords.ui.codex.CodexGenerateScreen31import com.peachpasswords.ui.codex.CodexRestoreScreen32import com.peachpasswords.ui.components.CopyFeedbackOverlay33import com.peachpasswords.ui.lock.LockScreen34import com.peachpasswords.ui.onboarding.OnboardingScreen35import com.peachpasswords.ui.pairing.CodePairScreen36import com.peachpasswords.ui.pairing.AdoptVaultScreen37import com.peachpasswords.ui.onboarding.ONBOARD_KEY38import com.peachpasswords.ui.onboarding.ONBOARD_PREFS39import com.peachpasswords.ui.recovery.RecoveryWordEntryScreen40import com.peachpasswords.ui.settings.PanicScreen41import com.peachpasswords.ui.settings.SettingsScreen42import com.peachpasswords.ui.vault.VaultHealthScreen43import com.peachpasswords.ui.theme.PeachMotion44import com.peachpasswords.ui.updates.UpdateScreen45import com.peachpasswords.ui.updates.UpdateViewModel46import com.peachpasswords.ui.updates.WhatsNewScreen47import com.peachpasswords.ui.vault.EntryDetailScreen48import com.peachpasswords.ui.vault.EntryEditScreen49import com.peachpasswords.ui.vault.ExportScreen50import com.peachpasswords.ui.vault.ImportScreen51import com.peachpasswords.ui.vault.NotesModeScreen52import com.peachpasswords.ui.vault.RecoveryWordsScreen53import com.peachpasswords.ui.vault.TrashScreen54import com.peachpasswords.ui.vault.VaultListScreen5556@Composable57fun PeachAppNavHost(58    navController: NavHostController = rememberNavController(),59    startDestination: PeachNav = PeachNav.Lock,60    isUnlocked: kotlinx.coroutines.flow.StateFlow<Boolean>? = null,61    uiGateLocked: kotlinx.coroutines.flow.StateFlow<Boolean>? = null,62    autofillNav: AutofillNavRepository = hiltViewModel<AutofillNavViewModel>().repo,63) {64    val nav: (PeachNav) -> Unit = { navController.navigate(it.route) }65    val back: () -> Unit = { navController.popBackStack() }6667    // When the vault locks for any reason — manual lock button, idle auto-lock, or68    // background lock (CF-1/CF-2) — drop to the lock screen and clear history so no69    // post-unlock screen lingers behind it. Guarded so it never fires on the lock70    // or onboarding screens (where the vault is legitimately locked).71    val uiGated = uiGateLocked?.collectAsStateWithLifecycle()?.value ?: false72    val unlocked = if (isUnlocked == null) true else (isUnlocked.collectAsStateWithLifecycle().value && !uiGated)73    val currentBackStackEntry by navController.currentBackStackEntryAsState()74    val currentRoute = currentBackStackEntry?.destination?.route7576    // Update surfaces, both driven from outside the nav graph: a notification tap77    // (openRequested) and the once-per-version post-update changelog.78    val updateVm: UpdateViewModel = hiltViewModel()79    val openUpdateRequested by updateVm.openRequested.collectAsStateWithLifecycle()80    LaunchedEffect(openUpdateRequested) {81        if (openUpdateRequested) {82            updateVm.consumeOpenRequest()83            navController.navigate(PeachNav.Update.route) { launchSingleTop = true }84        }85    }8687    // "+ Create new entry" deep link from the autofill picker. Holds the request88    // until the vault is open (the user must be unlocked to save a new entry).89    // Mirrors UpdateRepository's request/consume shape so MainActivity and the90    // nav host stay loosely coupled.91    val newEntryRequest by autofillNav.newEntryRequest.collectAsStateWithLifecycle()92    LaunchedEffect(newEntryRequest, unlocked) {93        val req = newEntryRequest ?: return@LaunchedEffect94        if (!unlocked) return@LaunchedEffect95        autofillNav.consumeNewEntryRequest()96        navController.navigate(97            PeachNav.EntryEdit.of(98                id = null,99                prefillUrl = req.url,100                prefillUsername = req.username,101                prefillEmail = req.email,102            ),103        ) { launchSingleTop = true }104    }105    // Launcher shortcut / passkey-unlock action from the launch intent, held the106    // same way: every one of these destinations needs an open vault, and the107    // shortcut is usually tapped while the app is locked or not running.108    val pendingAction by PendingActionQueue.pending.collectAsStateWithLifecycle()109    LaunchedEffect(pendingAction, unlocked) {110        val action = pendingAction ?: return@LaunchedEffect111        if (!unlocked) return@LaunchedEffect112        PendingActionQueue.consume()113        val route = when (action) {114            PendingAction.Search -> PeachNav.VaultList.route115            PendingAction.AddEntry -> PeachNav.EntryEdit.of(id = null)116            PendingAction.Pair -> PeachNav.CodePair.route117            // Unlocking *is* the whole action: the credential provider re-queries118            // once the vault is open. Resuming the in-flight request itself needs119            // the provider request stashed across the unlock — out of scope here,120            // but the action is now recognised rather than silently dropped.121            PendingAction.PasskeyUnlock -> null122        } ?: return@LaunchedEffect123        navController.navigate(route) { launchSingleTop = true }124    }125126    val whatsNewNotes by updateVm.whatsNew.collectAsStateWithLifecycle()    // Held until the vault is open: the changelog is harmless, but shoving it in127    // front of the lock screen reads as the app having lost its place.128    LaunchedEffect(whatsNewNotes, unlocked) {129        if (whatsNewNotes != null && unlocked &&130            navController.currentDestination?.route != PeachNav.WhatsNew.route131        ) {132            navController.navigate(PeachNav.WhatsNew.route) { launchSingleTop = true }133        }134    }135136    if (isUnlocked != null) {137        LaunchedEffect(unlocked, currentRoute) {138            if (!unlocked && requiresUnlockedVault(currentRoute)) {139                navController.navigate(PeachNav.Lock.route) {140                    popUpTo(0) { inclusive = true }141                    launchSingleTop = true142                }143            }144        }145    }146147    Box(Modifier.fillMaxSize()) {148        NavHost(149            navController = navController,150            startDestination = startDestination.route,151            enterTransition = {152                if (isVaultSheetTransition(initialState.destination.route, targetState.destination.route)) {153                    slideInVertically(154                        initialOffsetY = { it },155                        animationSpec = tween(PeachMotion.Enter, easing = PeachMotion.Spring),156                    ) + fadeIn(tween(PeachMotion.Enter, easing = PeachMotion.Spring))157                } else if (isVaultSheetTransition(initialState.destination.route, targetState.destination.route, reverse = true)) {158                    EnterTransition.None159                } else {160                    slideInVertically(161                        initialOffsetY = { (it * 0.05f).toInt() },162                        animationSpec = tween(PeachMotion.Enter, easing = PeachMotion.Spring),163                    ) + fadeIn(tween(PeachMotion.Enter, easing = PeachMotion.Spring))164                }165            },166            exitTransition = {167                if (isVaultSheetTransition(initialState.destination.route, targetState.destination.route)) {168                    ExitTransition.None169                } else if (isVaultSheetTransition(initialState.destination.route, targetState.destination.route, reverse = true)) {170                    slideOutVertically(171                        targetOffsetY = { it },172                        animationSpec = tween(PeachMotion.Exit, easing = PeachMotion.Retreat),173                    ) + fadeOut(tween(PeachMotion.Exit, easing = PeachMotion.Retreat))174                } else {175                    slideOutVertically(176                        targetOffsetY = { -(it * 0.03f).toInt() },177                        animationSpec = tween(PeachMotion.Exit, easing = PeachMotion.Retreat),178                    ) + fadeOut(tween(PeachMotion.Exit, easing = PeachMotion.Retreat))179                }180            },181            popEnterTransition = {182                if (isVaultSheetTransition(initialState.destination.route, targetState.destination.route, reverse = true)) {183                    EnterTransition.None184                } else {185                    fadeIn(tween(PeachMotion.Enter, easing = PeachMotion.Spring))186                }187            },188            popExitTransition = {189                if (isVaultSheetTransition(initialState.destination.route, targetState.destination.route, reverse = true)) {190                    slideOutVertically(191                        targetOffsetY = { it },192                        animationSpec = tween(PeachMotion.Exit, easing = PeachMotion.Retreat),193                    ) + fadeOut(tween(PeachMotion.Exit, easing = PeachMotion.Retreat))194                } else {195                    slideOutVertically(196                        targetOffsetY = { (it * 0.05f).toInt() },197                        animationSpec = tween(PeachMotion.Exit, easing = PeachMotion.Retreat),198                    ) + fadeOut(tween(PeachMotion.Exit, easing = PeachMotion.Retreat))199                }200            },201        ) {202        composable(PeachNav.Onboarding.route) {203            OnboardingScreen(204                onFinished = {205                    navController.navigate(PeachNav.Lock.route)206                },207                onRestore = { nav(PeachNav.Import) },208                onAdopt = { nav(PeachNav.AdoptVault) },209            )210        }211        composable(PeachNav.Lock.route) {212            LockScreen(213                onUnlocked = { dest ->214                    navController.navigate(dest.route) {215                        popUpTo(0) { inclusive = true }216                    }217                },218                onNavigate = nav,219            )220        }221        composable(PeachNav.VaultList.route) {222            // C1: non-null only when the list was pushed on top of an entry223            // (slide-up-to-open from EntryDetailSearchStrip) — slide back224            // down pops back to that exact entry instance.225            val hasOrigin = navController.previousBackStackEntry != null226            VaultListScreen(227                onNavigate = nav,228                onBack = if (hasOrigin) ({ navController.popBackStack() }) else null,229            )230        }231        // No {id}: NotesModeScreen opens on its table of contents, which is the232        // actual notes surface. The notes filter on the vault list is a filter,233        // not this.234        composable(PeachNav.Notes.route) { NotesModeScreen(onBack = back) }235236        composable(237            route = PeachNav.EntryDetail.ROUTE,238            arguments = listOf(navArgument("id") { type = NavType.StringType }),239        ) { backStack ->240            // C1: when this entry is the post-unlock landing surface, its241            // unlock navigation popped Lock off the stack (see the Lock242            // composable below), so there's no previous entry — it's the243            // deck's root, not a screen pushed from the vault list, and244            // shouldn't offer a "back to list" affordance that implies245            // otherwise. Only entries reached by tapping a vault-list row246            // (a real push) get a real back target.247            val isRoot = navController.previousBackStackEntry == null248            EntryDetailScreen(249                id = backStack.arguments?.getString("id").orEmpty(),250                onNavigate = nav,251                onBack = if (isRoot) null else ({ navController.navigate(PeachNav.VaultList.route) }),252            )253        }254        composable(255            route = PeachNav.EntryEdit.ROUTE,256            arguments = listOf(257                navArgument("id") { type = NavType.StringType; nullable = true },258                navArgument("prefillUrl") { type = NavType.StringType; nullable = true; defaultValue = null },259                navArgument("prefillUsername") { type = NavType.StringType; nullable = true; defaultValue = null },260                navArgument("prefillEmail") { type = NavType.StringType; nullable = true; defaultValue = null },261            ),262        ) { backStack ->263            val editId = backStack.arguments?.getString("id")?.takeIf { it.isNotBlank() }264            if (editId == null) {265                EntryEditScreen(266                    id = null,267                    onBack = back,268                    onOpenNote = { noteId ->269                        navController.navigate(PeachNav.NotesMode.of(noteId)) {270                            popUpTo(PeachNav.EntryEdit.ROUTE) { inclusive = true }271                        }272                    },273                )274            } else {275                EntryDetailScreen(276                    id = editId,277                    onNavigate = nav,278                    onBack = back,279                )280            }281        }282283        composable(284            route = PeachNav.NotesMode.ROUTE,285            arguments = listOf(navArgument("id") { type = NavType.StringType }),286        ) {287            NotesModeScreen(onBack = back)288        }289        composable(PeachNav.Settings.route) { SettingsScreen(onBack = back, onNavigate = nav) }290        composable(PeachNav.CodexGenerate.route) {291            CodexGenerateScreen(292                onBack = back,293                onSetupRecovery = { nav(PeachNav.RecoverySetup) },294                onUpgradePro = { nav(PeachNav.Settings) },295            )296        }297        composable(PeachNav.CodexRestore.route) {298            CodexRestoreScreen(299                onBack = back,300                onRestored = {301                    navController.navigate(PeachNav.VaultList.route) {302                        popUpTo(0) { inclusive = true }303                    }304                },305            )306        }307        composable(PeachNav.CodePair.route) {308            CodePairScreen(309                onBack = back,310                onOpenPro = { nav(PeachNav.Settings) },311            )312        }313        composable(PeachNav.AdoptVault.route) {314            val context = LocalContext.current315            AdoptVaultScreen(316                onBack = back,317                onComplete = {318                    context319                        .getSharedPreferences(ONBOARD_PREFS, android.content.Context.MODE_PRIVATE)320                        .edit()321                        .putBoolean(ONBOARD_KEY, true)322                        .apply()323                    navController.navigate(PeachNav.VaultList.route) {324                        popUpTo(0) { inclusive = true }325                    }326                },327            )328        }329        composable(PeachNav.Health.route) {330            VaultHealthScreen(onBack = back, onEditEntry = { nav(PeachNav.EntryDetail(it)) })331        }332        composable(PeachNav.Trash.route) { TrashScreen(onBack = back) }333        composable(PeachNav.Import.route) {334            ImportScreen(335                onBack = back,336                onCodex = { nav(PeachNav.CodexRestore) },337                onVaultCreated = {338                    navController.navigate(PeachNav.RecoverySetup.route) {339                        popUpTo(0) { inclusive = true }340                    }341                },342            )343        }344        composable(PeachNav.Export.route) { ExportScreen(onBack = back) }345        composable(PeachNav.Panic.route) {346            PanicScreen(347                onBack = back,348                onDestroyed = {349                    navController.navigate(PeachNav.Lock.route) {350                        popUpTo(0) { inclusive = true }351                    }352                },353            )354        }355        composable(PeachNav.RecoverySetup.route) {356            RecoveryWordsScreen(357                requireConfirm = true,358                onDone = {359                    navController.navigate(PeachNav.VaultList.route) {360                        popUpTo(0) { inclusive = true }361                    }362                },363            )364        }365        composable(PeachNav.RecoveryView.route) {366            RecoveryWordsScreen(requireConfirm = false, onDone = back)367        }368        composable(PeachNav.Update.route) { UpdateScreen(onBack = back) }369        composable(PeachNav.WhatsNew.route) { WhatsNewScreen(onDone = back) }370        composable(PeachNav.RecoveryEntry.route) {371            RecoveryWordEntryScreen(372                onSuccess = {373                    navController.navigate(PeachNav.VaultList.route) {374                        popUpTo(0) { inclusive = true }375                    }376                },377                onBack = back,378                onRestore = { nav(PeachNav.Import) },379            )380        }381        }382        CopyFeedbackOverlay()383    }384}385386internal fun requiresUnlockedVault(route: String?): Boolean {387    if (route == null) return false388    return route !in setOf(389        PeachNav.Onboarding.route,390        PeachNav.Lock.route,391        PeachNav.AdoptVault.route,392        PeachNav.Import.route,393        PeachNav.CodexRestore.route,394        PeachNav.RecoveryEntry.route,395        PeachNav.Update.route,396    )397}398399internal fun isVaultSheetTransition(fromRoute: String?, toRoute: String?, reverse: Boolean = false): Boolean {400    val fromEntry = isEntrySurfaceRoute(fromRoute)401    val toEntry = isEntrySurfaceRoute(toRoute)402    return if (reverse) {403        fromRoute == PeachNav.VaultList.route && toEntry404    } else {405        fromEntry && toRoute == PeachNav.VaultList.route406    }407}408409internal fun isEntrySurfaceRoute(route: String?): Boolean =410    route?.startsWith("entry/") == true || route?.startsWith("notes/") == true