LockScreen.kt

1package com.peachpasswords.ui.lock23import androidx.compose.animation.core.Animatable4import androidx.compose.animation.core.keyframes5import androidx.compose.foundation.background6import androidx.compose.foundation.border7import androidx.compose.foundation.clickable8import androidx.compose.foundation.interaction.MutableInteractionSource9import androidx.compose.foundation.interaction.collectIsFocusedAsState10import androidx.compose.foundation.layout.Arrangement11import androidx.compose.foundation.layout.Box12import androidx.compose.foundation.layout.Column13import androidx.compose.foundation.layout.ExperimentalLayoutApi14import androidx.compose.foundation.layout.FlowRow15import androidx.compose.foundation.layout.Row16import androidx.compose.foundation.layout.Spacer17import androidx.compose.foundation.layout.fillMaxHeight18import androidx.compose.foundation.layout.fillMaxSize19import androidx.compose.foundation.layout.offset20import androidx.compose.foundation.layout.fillMaxWidth21import androidx.compose.foundation.layout.height22import androidx.compose.foundation.layout.padding23import androidx.compose.foundation.layout.systemBarsPadding24import androidx.compose.foundation.layout.widthIn25import androidx.compose.foundation.shape.RoundedCornerShape26import androidx.compose.foundation.text.BasicTextField27import androidx.compose.foundation.text.KeyboardActions28import androidx.compose.foundation.text.KeyboardOptions29import androidx.compose.material3.Text30import androidx.compose.runtime.Composable31import androidx.compose.runtime.LaunchedEffect32import androidx.compose.runtime.getValue33import androidx.compose.runtime.mutableStateOf34import androidx.compose.runtime.remember35import androidx.compose.runtime.setValue36import androidx.compose.ui.Alignment37import androidx.compose.ui.Modifier38import androidx.compose.ui.draw.alpha39import androidx.compose.ui.draw.clip40import androidx.compose.ui.draw.drawBehind41import androidx.compose.ui.geometry.Offset42import androidx.compose.ui.geometry.Size43import androidx.compose.ui.graphics.Color44import androidx.compose.ui.graphics.SolidColor45import androidx.compose.ui.text.TextStyle46import androidx.compose.ui.text.input.ImeAction47import androidx.compose.ui.text.input.KeyboardType48import androidx.compose.ui.text.input.PasswordVisualTransformation49import androidx.compose.ui.text.input.VisualTransformation50import androidx.compose.ui.text.style.TextAlign51import androidx.compose.ui.unit.IntOffset52import androidx.compose.ui.unit.dp53import androidx.compose.ui.unit.em54import androidx.compose.ui.unit.sp55import androidx.hilt.navigation.compose.hiltViewModel56import androidx.compose.runtime.collectAsState57import androidx.compose.ui.platform.LocalContext58import androidx.fragment.app.FragmentActivity59import com.peachpasswords.ui.PeachNav60import com.peachpasswords.ui.components.PeachMark61import com.peachpasswords.ui.components.PeachWordmark62import com.peachpasswords.ui.components.RuneGridBackground63import com.peachpasswords.ui.theme.LocalPeachAccent64import com.peachpasswords.ui.theme.PeachSpacing65import com.peachpasswords.ui.theme.peachColors66import com.peachpasswords.ui.security.StrengthBar67import com.peachpasswords.ui.security.scorePassword68import com.peachpasswords.ui.security.strengthColor69import com.peachpasswords.ui.security.strengthLabel70import com.peachpasswords.ui.theme.PeachType71import com.peachpasswords.ui.theme.ShellBackground7273/**74 * Where the unlock transition should land. Extracted from the LaunchedEffect body so75 * the priority order (created > autofill > postUnlock) is unit-testable without a76 * Compose runtime; the LaunchedEffect is a thin dispatcher that calls77 * [routeOnUnlock] once per unlock transition.78 *79 * [Defer] means "let the NavHost handle it" — used when an autofill-driven navigation80 * is queued at the moment of unlock so we don't clobber it with popUpTo(0).81 */82internal sealed class UnlockRoute {83    /** A freshly created vault must walk through recovery-word setup before the list. */84    data object RecoverySetup : UnlockRoute()85    /** A queued post-unlock navigation is in flight; the NavHost owns the destination. */86    data object Defer : UnlockRoute()87    /** Ordinary unlock: route to the post-unlock destination the ViewModel computed. */88    data class PostUnlock(val destination: PeachNav) : UnlockRoute()89}9091/**92 * Decide what the lock screen does when [LockUiState.unlocked] flips true. The93 * priority order matters: a newly-created vault always goes to recovery-word setup,94 * an autofill-pending unlock defers to the NavHost, everything else lands on the95 * ViewModel-computed post-unlock destination.96 *97 * `postUnlock` is a lambda so the function is pure and the lazy destination lookup98 * is observable in tests (a [UnlockRoute.Defer] must never invoke it).99 */100internal fun routeOnUnlock(101    state: LockUiState,102    autofillPending: Boolean,103    shortcutPending: Boolean = false,104    postUnlock: () -> PeachNav,105): UnlockRoute = when {106    state.created -> UnlockRoute.RecoverySetup107    autofillPending || shortcutPending -> UnlockRoute.Defer108    else -> UnlockRoute.PostUnlock(postUnlock())109}110111@Composable112fun LockScreen(113    onUnlocked: (PeachNav) -> Unit,114    onNavigate: (PeachNav) -> Unit,115    /**116     * True when an autofill-driven navigation (e.g. the "+ Save to Peach"117     * create chip) is queued and waiting for the vault to unlock. When set,118     * [onUnlocked] is skipped: the autofill nav path at the PeachAppNavHost119     * scope will navigate to its own destination (the new-entry editor with120     * URL prefilled), and we must not clobber it with the last-viewed entry.121     * Two LaunchedEffects firing on the same unlock would otherwise race --122     * the LockScreen one wins because [onUnlocked] uses popUpTo(0) inclusive.123     */124    autofillPending: Boolean = false,125    /** True when a launcher shortcut is waiting for this unlock transition. */126    shortcutPending: Boolean = false,127    vm: LockViewModel = hiltViewModel(),128) {129    val state by vm.state.collectAsState()130    val accent = LocalPeachAccent.current131    val context = LocalContext.current132    val activity = context as? FragmentActivity133    val canBiometric = remember(state.hasVault) { vm.canTryBiometric() }134135    var password by remember { mutableStateOf("") }136    var confirm by remember { mutableStateOf("") }137    var reveal by remember { mutableStateOf(false) }138    var pinMode by remember(state.pinEnabled, state.pinPreferred) { mutableStateOf(state.pinPreferred) }139    val createScore = remember(password) { scorePassword(password) }140    // Why the create button is disabled, shown on the button itself. Without141    // it the button just silently does nothing (browser parity: Lock.tsx's142    // createBlockerMessage). Null before typing -- no scolding on an empty form.143    val createBlocker = if (state.hasVault || password.isEmpty()) null144                        else createValidationError(password, confirm, createScore)145146    // Keyed on `state.unlocked` only: the autofill nav path in PeachAppNavHost consumes147    // `newEntryRequest` synchronously, which would otherwise flip `autofillPending` to148    // false mid-unlock and re-fire this effect — landing the user on the vault list149    // instead of the new-entry editor. Capturing `autofillPending` at the unlock150    // transition (rather than re-reading it on every key change) makes the two effects151    // cooperative instead of racing.152    LaunchedEffect(state.unlocked) {153        if (!state.unlocked) return@LaunchedEffect154        when (val route = routeOnUnlock(state, autofillPending, shortcutPending, vm::postUnlockDestination)) {155            UnlockRoute.RecoverySetup -> onNavigate(PeachNav.RecoverySetup)156            UnlockRoute.Defer -> Unit157            is UnlockRoute.PostUnlock -> onUnlocked(route.destination)158        }159    }160161    // Auto-offer biometric unlock shortly after the lock screen appears.162    LaunchedEffect(canBiometric) {163        if (canBiometric && activity != null && !state.unlocked) {164            kotlinx.coroutines.delay(300)165            vm.biometricUnlock(activity)166        }167    }168169    // Shake the panel on each failed unlock (brief Phase 4: 0→−12→10→−8→6→0 over ~400ms).170    val shake = remember { Animatable(0f) }171    LaunchedEffect(state.shakeNonce) {172        if (state.shakeNonce > 0) {173            shake.animateTo(174                targetValue = 0f,175                animationSpec = keyframes {176                    durationMillis = 400177                    -12f at 60; 10f at 140; -8f at 230; 6f at 320; 0f at 400178                },179            )180        }181    }182183    ShellBackground {184        RuneGridBackground(modifier = Modifier.fillMaxSize())185186        PeachWordmark(187            modifier = Modifier.align(Alignment.TopStart).systemBarsPadding().padding(start = 20.dp, top = 8.dp),188            isPro = state.isPro,189        )190191        Column(192            modifier = Modifier193                .align(Alignment.Center)194                .fillMaxHeight()195                .widthIn(max = com.peachpasswords.ui.theme.CONTENT_MAX_WIDTH)196                .fillMaxWidth()197                .systemBarsPadding()198                .padding(horizontal = 28.dp),199            verticalArrangement = Arrangement.Center,200            horizontalAlignment = Alignment.CenterHorizontally,201        ) {202            // Hero: centered PeachMark · eyebrow · headline.203            PeachMark(size = 80.dp)204            Spacer(Modifier.height(18.dp))205            Text(206                text = if (state.hasVault) "VAULT LOCKED" else "NEW VAULT",207                color = peachColors.T2,208                style = PeachType.lockEyebrow,209            )210            Spacer(Modifier.height(10.dp))211            Text(212                text = if (state.hasVault) "unlock\nyour vault." else "keep your\nsecrets.",213                color = peachColors.T0,214                style = if (state.hasVault) PeachType.lockHeadline else PeachType.createHeadline,215                textAlign = TextAlign.Center,216            )217            Spacer(Modifier.height(24.dp))218219            // Glass panel holding the credential inputs.220            GlassPanel(221                modifier = Modifier.offset { IntOffset(shake.value.dp.roundToPx(), 0) },222            ) {223                Row(verticalAlignment = Alignment.CenterVertically) {224                    FieldLabel(225                        when {226                            state.hasVault && pinMode -> "PIN"227                            state.hasVault -> "master password"228                            else -> "create a master password"229                        },230                    )231                    if (!state.hasVault) {232                        Spacer(Modifier.weight(1f))233                        Text(234                            text = if (reveal) "hide" else "show",235                            color = accent,236                            style = PeachType.labelMono.copy(fontSize = 11.sp),237                            modifier = Modifier238                                .clip(RoundedCornerShape(6.dp))239                                .clickable { reveal = !reveal }240                                .padding(horizontal = 6.dp, vertical = 4.dp),241                        )242                    }243                }244                Spacer(Modifier.height(4.dp))245                UnderlineField(246                    value = password,247                    onChange = { password = it; vm.clearError() },248                    placeholder = if (pinMode) "••••" else "••••••••••",249                    textStyle = if (state.hasVault) PeachType.unlockInput else mono18Spaced(),250                    imeAction = if (state.hasVault) ImeAction.Go else ImeAction.Next,251                    onImeAction = {252                        if (state.hasVault) {253                            if (pinMode) vm.unlockWithPin(password) else vm.unlock(password)254                        }255                    },256                    keyboardType = if (pinMode) KeyboardType.NumberPassword else KeyboardType.Password,257                    masked = state.hasVault || !reveal,258                )259260                if (!state.hasVault) {261                    Spacer(Modifier.height(16.dp))262                    FieldLabel("confirm password")263                    Spacer(Modifier.height(4.dp))264                    UnderlineField(265                        value = confirm,266                        onChange = { confirm = it; vm.clearError() },267                        placeholder = "••••••••••",268                        textStyle = mono18Spaced(),269                        imeAction = ImeAction.Go,270                        onImeAction = { vm.create(password, confirm) },271                        masked = !reveal,272                    )273274                    Spacer(Modifier.height(14.dp))275                    if (password.isEmpty()) {276                        Text(277                            text = "At least $MIN_PASSWORD_LENGTH characters. The vault is created once both fields match and pass the strength check.",278                            color = peachColors.T2,279                            style = PeachType.hint,280                            textAlign = TextAlign.Center,281                        )282                    } else {283                        StrengthBar(score = createScore)284                        Spacer(Modifier.height(6.dp))285                        Text(286                            text = "strength: ${strengthLabel(createScore)}",287                            color = strengthColor(createScore),288                            style = PeachType.labelMono,289                            modifier = Modifier.fillMaxWidth(),290                            textAlign = TextAlign.Center,291                        )292                    }293                }294295                Text(296                    text = state.error ?: " ",297                    color = peachColors.Breach,298                    style = PeachType.labelMono.copy(fontSize = 11.sp),299                    textAlign = TextAlign.Center,300                    modifier = Modifier.fillMaxWidth().padding(top = 12.dp).height(18.dp),301                )302303                Spacer(Modifier.height(4.dp))304                AccentButton(305                    label = when {306                        state.hasVault -> "unlock"307                        state.loading -> "creating..."308                        createBlocker != null -> createBlocker309                        else -> "create vault"310                    },311                    enabled = !state.loading && (state.hasVault || canSubmitCreateVault(password, confirm, createScore)),312                    onClick = {313                        if (state.hasVault) {314                            if (pinMode) vm.unlockWithPin(password) else vm.unlock(password)315                        } else {316                            vm.create(password, confirm)317                        }318                    },319                )320321                if (state.hasVault && state.pinEnabled) {322                    Spacer(Modifier.height(8.dp))323                    Text(324                        text = if (pinMode) "Use master password" else "Use PIN",325                        color = accent,326                        style = PeachType.labelMono.copy(letterSpacing = 0.08.em),327                        textAlign = TextAlign.Center,328                        modifier = Modifier.fillMaxWidth()329                            .clip(RoundedCornerShape(8.dp))330                            .clickable { password = ""; pinMode = !pinMode }331                            .padding(vertical = 8.dp),332                    )333                }334335                if (state.hasVault && canBiometric && activity != null) {336                    Spacer(Modifier.height(12.dp))337                    Text(338                        text = "Use biometrics",339                        color = accent,340                        style = PeachType.labelMono.copy(letterSpacing = 0.08.em),341                        textAlign = TextAlign.Center,342                        modifier = Modifier.fillMaxWidth()343                            .clip(RoundedCornerShape(8.dp))344                            .clickable { vm.biometricUnlock(activity) }345                            .padding(vertical = 8.dp),346                    )347                }348349                if (state.hasVault) {350                    Spacer(Modifier.height(8.dp))351                    Text(352                        text = "Forgot your password?",353                        color = peachColors.T2,354                        style = PeachType.labelMono.copy(fontSize = 11.sp),355                        textAlign = TextAlign.Center,356                        modifier = Modifier.fillMaxWidth()357                            .clip(RoundedCornerShape(8.dp))358                            .clickable { onNavigate(PeachNav.RecoveryEntry) }359                            .padding(vertical = 8.dp),360                    )361                }362            }363364            if (!state.hasVault) {365                Spacer(Modifier.height(24.dp))366                RestoreTabs(onNavigate = onNavigate)367            }368        }369    }370}371372@Composable373private fun FieldLabel(text: String) {374    Text(text.uppercase(), color = peachColors.T2, style = PeachType.labelMono.copy(letterSpacing = 0.08.em))375}376377/** IBM Plex Mono 18sp, wide tracking — the create-vault input style (spec §5.2). */378private fun mono18Spaced() = TextStyle(fontFamily = PeachType.Mono, fontSize = 18.sp, letterSpacing = 0.18.em)379380@Composable381private fun GlassPanel(modifier: Modifier = Modifier, content: @Composable androidx.compose.foundation.layout.ColumnScope.() -> Unit) {382    Column(383        modifier384            .fillMaxWidth()385            .clip(RoundedCornerShape(18.dp))386            .background(Color(0xE0131109))387            .border(1.dp, peachColors.T3, RoundedCornerShape(18.dp))388            .padding(20.dp),389        content = content,390    )391}392393@Composable394private fun UnderlineField(395    value: String,396    onChange: (String) -> Unit,397    placeholder: String,398    textStyle: TextStyle,399    imeAction: ImeAction,400    onImeAction: () -> Unit,401    keyboardType: KeyboardType = KeyboardType.Password,402    masked: Boolean = true,403) {404    val accent = LocalPeachAccent.current405    val interaction = remember { MutableInteractionSource() }406    val focused by interaction.collectIsFocusedAsState()407    val hairline = peachColors.T3408    BasicTextField(409        value = value,410        onValueChange = onChange,411        singleLine = true,412        textStyle = textStyle.copy(color = peachColors.T0, textAlign = TextAlign.Center),413        cursorBrush = SolidColor(accent),414        visualTransformation = if (masked) PasswordVisualTransformation() else VisualTransformation.None,415        keyboardOptions = KeyboardOptions(keyboardType = keyboardType, imeAction = imeAction),416        keyboardActions = KeyboardActions(onGo = { onImeAction() }, onNext = { onImeAction() }),417        interactionSource = interaction,418        modifier = Modifier419            .fillMaxWidth()420            .drawBehind {421                drawRect(422                    color = if (focused) accent else hairline,423                    topLeft = Offset(0f, size.height - 1.dp.toPx()),424                    size = Size(size.width, 1.dp.toPx()),425                )426            }427            .padding(vertical = 8.dp),428        decorationBox = { inner ->429            Box(contentAlignment = Alignment.Center) {430                if (value.isEmpty()) {431                    Text(placeholder, style = textStyle.copy(color = peachColors.T2, textAlign = TextAlign.Center))432                }433                inner()434            }435        },436    )437}438439@Composable440private fun AccentButton(label: String, enabled: Boolean, onClick: () -> Unit) {441    val accent = LocalPeachAccent.current442    Box(443        modifier = Modifier444            .fillMaxWidth()445            .alpha(if (enabled) 1f else 0.5f)446            .clip(RoundedCornerShape(10.dp))447            .background(accent)448            .clickable(enabled = enabled, onClick = onClick)449            .padding(vertical = 13.dp),450        contentAlignment = Alignment.Center,451    ) {452        Text(453            label,454            color = Color.White,455            style = TextStyle(fontFamily = PeachType.Body, fontSize = 13.sp, letterSpacing = 0.06.em),456        )457    }458}459460@OptIn(ExperimentalLayoutApi::class)461@Composable462private fun RestoreTabs(onNavigate: (PeachNav) -> Unit) {463    val tabs = listOf(464        "PeachScript" to PeachNav.Import,465        "CSV" to PeachNav.Import,466        "Codex" to PeachNav.CodexRestore,467    )468    Column(horizontalAlignment = Alignment.CenterHorizontally) {469        Text("restore instead", color = peachColors.T1, style = PeachType.labelMono)470        Spacer(Modifier.height(10.dp))471        // These four barely fit one line at 411dp. A plain Row has nowhere to472        // put the overflow, so it hands the last pill near-zero width — the473        // label stacks one letter per line and then disappears entirely,474        // leaving a bordered box with no text. Wrap instead, and never let a475        // label break mid-word.476        FlowRow(477            horizontalArrangement = Arrangement.spacedBy(6.dp, Alignment.CenterHorizontally),478            verticalArrangement = Arrangement.spacedBy(6.dp),479        ) {480            tabs.forEach { (label, dest) ->481                Box(482                    modifier = Modifier483                        .border(1.dp, peachColors.T3, RoundedCornerShape(8.dp))484                        .clickable { onNavigate(dest) }485                        .padding(horizontal = 10.dp, vertical = 8.dp),486                ) {487                    Text(488                        label,489                        color = peachColors.T1,490                        style = PeachType.sortPill,491                        maxLines = 1,492                        softWrap = false,493                    )494                }495            }496        }497    }498}