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        // popUpTo Lock inclusive: don't leave the lock screen in the back97        // stack behind the new-entry editor (the back-press would land the98        // user back at the lock screen with the vault still open).99        navController.navigate(100            PeachNav.EntryEdit.of(101                id = null,102                prefillUrl = req.url,103                prefillUsername = req.username,104                prefillEmail = req.email,105            ),106        ) {107            launchSingleTop = true108            popUpTo(PeachNav.Lock.route) { inclusive = true }109        }110    }111    // Launcher shortcut / passkey-unlock action from the launch intent, held the112    // same way: every one of these destinations needs an open vault, and the113    // shortcut is usually tapped while the app is locked or not running.114    val pendingAction by PendingActionQueue.pending.collectAsStateWithLifecycle()115    LaunchedEffect(pendingAction, unlocked) {116        val action = pendingAction ?: return@LaunchedEffect117        if (!unlocked) return@LaunchedEffect118        PendingActionQueue.consume()119        val route = when (action) {120            PendingAction.Search -> PeachNav.VaultList.route121            PendingAction.AddEntry -> PeachNav.EntryEdit.of(id = null)122            PendingAction.Pair -> PeachNav.CodePair.route123            // Unlocking *is* the whole action: the credential provider re-queries124            // once the vault is open. Resuming the in-flight request itself needs125            // the provider request stashed across the unlock — out of scope here,126            // but the action is now recognised rather than silently dropped.127            PendingAction.PasskeyUnlock -> null128        } ?: return@LaunchedEffect129        navController.navigate(route) {130            launchSingleTop = true131            popUpTo(PeachNav.Lock.route) { inclusive = true }132        }133    }134135    val whatsNewNotes by updateVm.whatsNew.collectAsStateWithLifecycle()    // Held until the vault is open: the changelog is harmless, but shoving it in136    // front of the lock screen reads as the app having lost its place.137    LaunchedEffect(whatsNewNotes, unlocked) {138        if (whatsNewNotes != null && unlocked &&139            navController.currentDestination?.route != PeachNav.WhatsNew.route140        ) {141            navController.navigate(PeachNav.WhatsNew.route) { launchSingleTop = true }142        }143    }144145    if (isUnlocked != null) {146        LaunchedEffect(unlocked, currentRoute) {147            if (!unlocked && requiresUnlockedVault(currentRoute)) {148                navController.navigate(PeachNav.Lock.route) {149                    popUpTo(0) { inclusive = true }150                    launchSingleTop = true151                }152            }153        }154    }155156    Box(Modifier.fillMaxSize()) {157        NavHost(158            navController = navController,159            startDestination = startDestination.route,160            enterTransition = {161                if (isEntryToEntryTransition(initialState.destination.route, targetState.destination.route)) {162                    fadeIn(tween(180))163                } else if (isVaultSheetTransition(initialState.destination.route, targetState.destination.route)) {164                    slideInVertically(165                        initialOffsetY = { it },166                        animationSpec = tween(PeachMotion.Enter, easing = PeachMotion.Spring),167                    ) + fadeIn(tween(PeachMotion.Enter, easing = PeachMotion.Spring))168                } else if (isVaultSheetTransition(initialState.destination.route, targetState.destination.route, reverse = true)) {169                    EnterTransition.None170                } else {171                    slideInVertically(172                        initialOffsetY = { (it * 0.05f).toInt() },173                        animationSpec = tween(PeachMotion.Enter, easing = PeachMotion.Spring),174                    ) + fadeIn(tween(PeachMotion.Enter, easing = PeachMotion.Spring))175                }176            },177            exitTransition = {178                if (isEntryToEntryTransition(initialState.destination.route, targetState.destination.route)) {179                    fadeOut(tween(180))180                } else if (isVaultSheetTransition(initialState.destination.route, targetState.destination.route)) {181                    ExitTransition.None182                } else if (isVaultSheetTransition(initialState.destination.route, targetState.destination.route, reverse = true)) {183                    slideOutVertically(184                        targetOffsetY = { it },185                        animationSpec = tween(PeachMotion.Exit, easing = PeachMotion.Retreat),186                    ) + fadeOut(tween(PeachMotion.Exit, easing = PeachMotion.Retreat))187                } else {188                    slideOutVertically(189                        targetOffsetY = { -(it * 0.03f).toInt() },190                        animationSpec = tween(PeachMotion.Exit, easing = PeachMotion.Retreat),191                    ) + fadeOut(tween(PeachMotion.Exit, easing = PeachMotion.Retreat))192                }193            },194            popEnterTransition = {195                if (isVaultSheetTransition(initialState.destination.route, targetState.destination.route, reverse = true)) {196                    EnterTransition.None197                } else {198                    fadeIn(tween(PeachMotion.Enter, easing = PeachMotion.Spring))199                }200            },201            popExitTransition = {202                if (isVaultSheetTransition(initialState.destination.route, targetState.destination.route, reverse = true)) {203                    slideOutVertically(204                        targetOffsetY = { it },205                        animationSpec = tween(PeachMotion.Exit, easing = PeachMotion.Retreat),206                    ) + fadeOut(tween(PeachMotion.Exit, easing = PeachMotion.Retreat))207                } else {208                    slideOutVertically(209                        targetOffsetY = { (it * 0.05f).toInt() },210                        animationSpec = tween(PeachMotion.Exit, easing = PeachMotion.Retreat),211                    ) + fadeOut(tween(PeachMotion.Exit, easing = PeachMotion.Retreat))212                }213            },214        ) {215        composable(PeachNav.Onboarding.route) {216            OnboardingScreen(217                onFinished = {218                    navController.navigate(PeachNav.Lock.route)219                },220                onRestore = { nav(PeachNav.Import) },221                onAdopt = { nav(PeachNav.AdoptVault) },222            )223        }224        composable(PeachNav.Lock.route) {225            LockScreen(226                onUnlocked = { dest ->227                    navController.navigate(dest.route) {228                        popUpTo(0) { inclusive = true }229                    }230                },231                onNavigate = nav,232                // When an autofill nav request is pending, LockScreen must not233                // also route to the last-viewed entry (see LaunchedEffect below).234                autofillPending = newEntryRequest != null,235                // Launcher shortcuts are also post-unlock destinations. Let the236                // PendingAction effect below own the route so LockScreen cannot237                // race it with its ordinary last-viewed-entry navigation.238                shortcutPending = pendingAction != null,239            )240        }241        composable(PeachNav.VaultList.route) {242            // C1: non-null only when the list was pushed on top of an entry243            // (slide-up-to-open from EntryDetailSearchStrip) — slide back244            // down pops back to that exact entry instance.245            val hasOrigin = navController.previousBackStackEntry != null246            VaultListScreen(247                onNavigate = nav,248                onBack = if (hasOrigin) ({ navController.popBackStack() }) else null,249            )250        }251        composable(PeachNav.VaultSearch.route) {252            VaultListScreen(253                onNavigate = nav,254                onBack = { navController.popBackStack() },255                initialSearchActive = true,256            )257        }258        // No {id}: NotesModeScreen opens on its table of contents, which is the259        // actual notes surface. The notes filter on the vault list is a filter,260        // not this.261        composable(PeachNav.Notes.route) { NotesModeScreen(onBack = back, onNavigate = nav) }262263        composable(264            route = PeachNav.EntryDetail.ROUTE,265            arguments = listOf(navArgument("id") { type = NavType.StringType }),266        ) { backStack ->267            // C1: when this entry is the post-unlock landing surface, its268            // unlock navigation popped Lock off the stack (see the Lock269            // composable below), so there's no previous entry — it's the270            // deck's root, not a screen pushed from the vault list, and271            // shouldn't offer a "back to list" affordance that implies272            // otherwise. Only entries reached by tapping a vault-list row273            // (a real push) get a real back target.274            val isRoot = navController.previousBackStackEntry == null275            EntryDetailScreen(276                id = backStack.arguments?.getString("id").orEmpty(),277                onNavigate = nav,278                onBack = if (isRoot) null else ({ navController.navigate(PeachNav.VaultList.route) }),279            )280        }281        composable(282            route = PeachNav.EntryEdit.ROUTE,283            arguments = listOf(284                navArgument("id") { type = NavType.StringType; nullable = true },285                navArgument("prefillUrl") { type = NavType.StringType; nullable = true; defaultValue = null },286                navArgument("prefillUsername") { type = NavType.StringType; nullable = true; defaultValue = null },287                navArgument("prefillEmail") { type = NavType.StringType; nullable = true; defaultValue = null },288            ),289        ) { backStack ->290            val editId = backStack.arguments?.getString("id")?.takeIf { it.isNotBlank() }291            if (editId == null) {292                EntryEditScreen(293                    id = null,294                    onBack = back,295                    onHome = { nav(PeachNav.VaultList) },296                )297            } else {298                EntryEditScreen(299                    id = editId,300                    onBack = back,301                    onHome = { nav(PeachNav.VaultList) },302                )303            }304        }305306        composable(307            route = PeachNav.NotesMode.ROUTE,308            arguments = listOf(navArgument("id") { type = NavType.StringType }),309        ) {310            NotesModeScreen(onBack = back, onNavigate = nav)311        }312        composable(PeachNav.Settings.route) { SettingsScreen(onBack = back, onNavigate = nav) }313        composable(PeachNav.CodexGenerate.route) {314            CodexGenerateScreen(315                onBack = back,316                onSetupRecovery = { nav(PeachNav.RecoverySetup) },317                onUpgradePro = { nav(PeachNav.Settings) },318            )319        }320        composable(PeachNav.CodexRestore.route) {321            CodexRestoreScreen(322                onBack = back,323                onRestored = {324                    navController.navigate(PeachNav.VaultList.route) {325                        popUpTo(0) { inclusive = true }326                    }327                },328            )329        }330        composable(PeachNav.CodePair.route) {331            CodePairScreen(332                onBack = back,333                onOpenPro = { nav(PeachNav.Settings) },334            )335        }336        composable(PeachNav.AdoptVault.route) {337            val context = LocalContext.current338            AdoptVaultScreen(339                onBack = back,340                onComplete = {341                    context342                        .getSharedPreferences(ONBOARD_PREFS, android.content.Context.MODE_PRIVATE)343                        .edit()344                        .putBoolean(ONBOARD_KEY, true)345                        .apply()346                    navController.navigate(PeachNav.VaultList.route) {347                        popUpTo(0) { inclusive = true }348                    }349                },350            )351        }352        composable(PeachNav.Health.route) {353            VaultHealthScreen(onBack = back, onEditEntry = { nav(PeachNav.EntryDetail(it)) })354        }355        composable(PeachNav.Trash.route) { TrashScreen(onBack = back) }356        composable(PeachNav.Import.route) {357            ImportScreen(358                onBack = back,359                onCodex = { nav(PeachNav.CodexRestore) },360                onVaultCreated = {361                    navController.navigate(PeachNav.RecoverySetup.route) {362                        popUpTo(0) { inclusive = true }363                    }364                },365            )366        }367        composable(PeachNav.Export.route) { ExportScreen(onBack = back) }368        composable(PeachNav.Panic.route) {369            PanicScreen(370                onBack = back,371                onDestroyed = {372                    navController.navigate(PeachNav.Lock.route) {373                        popUpTo(0) { inclusive = true }374                    }375                },376            )377        }378        composable(PeachNav.RecoverySetup.route) {379            RecoveryWordsScreen(380                requireConfirm = true,381                onDone = {382                    navController.navigate(PeachNav.VaultList.route) {383                        popUpTo(0) { inclusive = true }384                    }385                },386            )387        }388        composable(PeachNav.RecoveryView.route) {389            RecoveryWordsScreen(requireConfirm = false, onDone = back)390        }391        composable(PeachNav.Update.route) { UpdateScreen(onBack = back) }392        composable(PeachNav.WhatsNew.route) { WhatsNewScreen(onDone = back) }393        composable(PeachNav.RecoveryEntry.route) {394            RecoveryWordEntryScreen(395                onSuccess = {396                    navController.navigate(PeachNav.VaultList.route) {397                        popUpTo(0) { inclusive = true }398                    }399                },400                onBack = back,401                onRestore = { nav(PeachNav.Import) },402            )403        }404        }405        CopyFeedbackOverlay()406    }407}408409internal fun requiresUnlockedVault(route: String?): Boolean {410    if (route == null) return false411    return route !in setOf(412        PeachNav.Onboarding.route,413        PeachNav.Lock.route,414        PeachNav.AdoptVault.route,415        PeachNav.Import.route,416        PeachNav.CodexRestore.route,417        PeachNav.RecoveryEntry.route,418        PeachNav.Update.route,419    )420}421422internal fun isVaultSheetTransition(fromRoute: String?, toRoute: String?, reverse: Boolean = false): Boolean {423    val fromEntry = isEntrySurfaceRoute(fromRoute)424    val toEntry = isEntrySurfaceRoute(toRoute)425    return if (reverse) {426        fromRoute == PeachNav.VaultList.route && toEntry427    } else {428        fromEntry && toRoute == PeachNav.VaultList.route429    }430}431432internal fun isEntrySurfaceRoute(route: String?): Boolean =433    route?.startsWith("entry/") == true || route?.startsWith("notes/") == true434435internal fun isEntryToEntryTransition(fromRoute: String?, toRoute: String?): Boolean =436    isEntrySurfaceRoute(fromRoute) && isEntrySurfaceRoute(toRoute) && fromRoute != toRoute