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    /** An autofill nav request 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    postUnlock: () -> PeachNav,104): UnlockRoute = when {105    state.created -> UnlockRoute.RecoverySetup106    autofillPending -> UnlockRoute.Defer107    else -> UnlockRoute.PostUnlock(postUnlock())108}109110@Composable111fun LockScreen(112    onUnlocked: (PeachNav) -> Unit,113    onNavigate: (PeachNav) -> Unit,114    /**115     * True when an autofill-driven navigation (e.g. the "+ Save to Peach"116     * create chip) is queued and waiting for the vault to unlock. When set,117     * [onUnlocked] is skipped: the autofill nav path at the PeachAppNavHost118     * scope will navigate to its own destination (the new-entry editor with119     * URL prefilled), and we must not clobber it with the last-viewed entry.120     * Two LaunchedEffects firing on the same unlock would otherwise race --121     * the LockScreen one wins because [onUnlocked] uses popUpTo(0) inclusive.122     */123    autofillPending: Boolean = false,124    vm: LockViewModel = hiltViewModel(),125) {126    val state by vm.state.collectAsState()127    val accent = LocalPeachAccent.current128    val context = LocalContext.current129    val activity = context as? FragmentActivity130    val canBiometric = remember(state.hasVault) { vm.canTryBiometric() }131132    var password by remember { mutableStateOf("") }133    var confirm by remember { mutableStateOf("") }134    var reveal by remember { mutableStateOf(false) }135    var pinMode by remember(state.pinEnabled, state.pinPreferred) { mutableStateOf(state.pinPreferred) }136    val createScore = remember(password) { scorePassword(password) }137    // Why the create button is disabled, shown on the button itself. Without138    // it the button just silently does nothing (browser parity: Lock.tsx's139    // createBlockerMessage). Null before typing -- no scolding on an empty form.140    val createBlocker = if (state.hasVault || password.isEmpty()) null141                        else createValidationError(password, confirm, createScore)142143    // Keyed on `state.unlocked` only: the autofill nav path in PeachAppNavHost consumes144    // `newEntryRequest` synchronously, which would otherwise flip `autofillPending` to145    // false mid-unlock and re-fire this effect — landing the user on the vault list146    // instead of the new-entry editor. Capturing `autofillPending` at the unlock147    // transition (rather than re-reading it on every key change) makes the two effects148    // cooperative instead of racing.149    LaunchedEffect(state.unlocked) {150        if (!state.unlocked) return@LaunchedEffect151        when (val route = routeOnUnlock(state, autofillPending, vm::postUnlockDestination)) {152            UnlockRoute.RecoverySetup -> onNavigate(PeachNav.RecoverySetup)153            UnlockRoute.Defer -> Unit154            is UnlockRoute.PostUnlock -> onUnlocked(route.destination)155        }156    }157158    // Auto-offer biometric unlock shortly after the lock screen appears.159    LaunchedEffect(canBiometric) {160        if (canBiometric && activity != null && !state.unlocked) {161            kotlinx.coroutines.delay(300)162            vm.biometricUnlock(activity)163        }164    }165166    // Shake the panel on each failed unlock (brief Phase 4: 0→−12→10→−8→6→0 over ~400ms).167    val shake = remember { Animatable(0f) }168    LaunchedEffect(state.shakeNonce) {169        if (state.shakeNonce > 0) {170            shake.animateTo(171                targetValue = 0f,172                animationSpec = keyframes {173                    durationMillis = 400174                    -12f at 60; 10f at 140; -8f at 230; 6f at 320; 0f at 400175                },176            )177        }178    }179180    ShellBackground {181        RuneGridBackground(modifier = Modifier.fillMaxSize())182183        PeachWordmark(184            modifier = Modifier.align(Alignment.TopStart).systemBarsPadding().padding(start = 20.dp, top = 8.dp),185            isPro = state.isPro,186        )187188        Column(189            modifier = Modifier190                .align(Alignment.Center)191                .fillMaxHeight()192                .widthIn(max = com.peachpasswords.ui.theme.CONTENT_MAX_WIDTH)193                .fillMaxWidth()194                .systemBarsPadding()195                .padding(horizontal = 28.dp),196            verticalArrangement = Arrangement.Center,197            horizontalAlignment = Alignment.CenterHorizontally,198        ) {199            // Hero: centered PeachMark · eyebrow · headline.200            PeachMark(size = 80.dp)201            Spacer(Modifier.height(18.dp))202            Text(203                text = if (state.hasVault) "VAULT LOCKED" else "NEW VAULT",204                color = peachColors.T2,205                style = PeachType.lockEyebrow,206            )207            Spacer(Modifier.height(10.dp))208            Text(209                text = if (state.hasVault) "unlock\nyour vault." else "keep your\nsecrets.",210                color = peachColors.T0,211                style = if (state.hasVault) PeachType.lockHeadline else PeachType.createHeadline,212                textAlign = TextAlign.Center,213            )214            Spacer(Modifier.height(24.dp))215216            // Glass panel holding the credential inputs.217            GlassPanel(218                modifier = Modifier.offset { IntOffset(shake.value.dp.roundToPx(), 0) },219            ) {220                Row(verticalAlignment = Alignment.CenterVertically) {221                    FieldLabel(222                        when {223                            state.hasVault && pinMode -> "PIN"224                            state.hasVault -> "master password"225                            else -> "create a master password"226                        },227                    )228                    if (!state.hasVault) {229                        Spacer(Modifier.weight(1f))230                        Text(231                            text = if (reveal) "hide" else "show",232                            color = accent,233                            style = PeachType.labelMono.copy(fontSize = 11.sp),234                            modifier = Modifier235                                .clip(RoundedCornerShape(6.dp))236                                .clickable { reveal = !reveal }237                                .padding(horizontal = 6.dp, vertical = 4.dp),238                        )239                    }240                }241                Spacer(Modifier.height(4.dp))242                UnderlineField(243                    value = password,244                    onChange = { password = it; vm.clearError() },245                    placeholder = if (pinMode) "••••" else "••••••••••",246                    textStyle = if (state.hasVault) PeachType.unlockInput else mono18Spaced(),247                    imeAction = if (state.hasVault) ImeAction.Go else ImeAction.Next,248                    onImeAction = {249                        if (state.hasVault) {250                            if (pinMode) vm.unlockWithPin(password) else vm.unlock(password)251                        }252                    },253                    keyboardType = if (pinMode) KeyboardType.NumberPassword else KeyboardType.Password,254                    masked = state.hasVault || !reveal,255                )256257                if (!state.hasVault) {258                    Spacer(Modifier.height(16.dp))259                    FieldLabel("confirm password")260                    Spacer(Modifier.height(4.dp))261                    UnderlineField(262                        value = confirm,263                        onChange = { confirm = it; vm.clearError() },264                        placeholder = "••••••••••",265                        textStyle = mono18Spaced(),266                        imeAction = ImeAction.Go,267                        onImeAction = { vm.create(password, confirm) },268                        masked = !reveal,269                    )270271                    Spacer(Modifier.height(14.dp))272                    if (password.isEmpty()) {273                        Text(274                            text = "At least $MIN_PASSWORD_LENGTH characters. The vault is created once both fields match and pass the strength check.",275                            color = peachColors.T2,276                            style = PeachType.hint,277                            textAlign = TextAlign.Center,278                        )279                    } else {280                        StrengthBar(score = createScore)281                        Spacer(Modifier.height(6.dp))282                        Text(283                            text = "strength: ${strengthLabel(createScore)}",284                            color = strengthColor(createScore),285                            style = PeachType.labelMono,286                            modifier = Modifier.fillMaxWidth(),287                            textAlign = TextAlign.Center,288                        )289                    }290                }291292                Text(293                    text = state.error ?: " ",294                    color = peachColors.Breach,295                    style = PeachType.labelMono.copy(fontSize = 11.sp),296                    textAlign = TextAlign.Center,297                    modifier = Modifier.fillMaxWidth().padding(top = 12.dp).height(18.dp),298                )299300                Spacer(Modifier.height(4.dp))301                AccentButton(302                    label = when {303                        state.hasVault -> "unlock"304                        state.loading -> "creating..."305                        createBlocker != null -> createBlocker306                        else -> "create vault"307                    },308                    enabled = !state.loading && (state.hasVault || canSubmitCreateVault(password, confirm, createScore)),309                    onClick = {310                        if (state.hasVault) {311                            if (pinMode) vm.unlockWithPin(password) else vm.unlock(password)312                        } else {313                            vm.create(password, confirm)314                        }315                    },316                )317318                if (state.hasVault && state.pinEnabled) {319                    Spacer(Modifier.height(8.dp))320                    Text(321                        text = if (pinMode) "Use master password" else "Use PIN",322                        color = accent,323                        style = PeachType.labelMono.copy(letterSpacing = 0.08.em),324                        textAlign = TextAlign.Center,325                        modifier = Modifier.fillMaxWidth()326                            .clip(RoundedCornerShape(8.dp))327                            .clickable { password = ""; pinMode = !pinMode }328                            .padding(vertical = 8.dp),329                    )330                }331332                if (state.hasVault && canBiometric && activity != null) {333                    Spacer(Modifier.height(12.dp))334                    Text(335                        text = "Use biometrics",336                        color = accent,337                        style = PeachType.labelMono.copy(letterSpacing = 0.08.em),338                        textAlign = TextAlign.Center,339                        modifier = Modifier.fillMaxWidth()340                            .clip(RoundedCornerShape(8.dp))341                            .clickable { vm.biometricUnlock(activity) }342                            .padding(vertical = 8.dp),343                    )344                }345346                if (state.hasVault) {347                    Spacer(Modifier.height(8.dp))348                    Text(349                        text = "Forgot your password?",350                        color = peachColors.T2,351                        style = PeachType.labelMono.copy(fontSize = 11.sp),352                        textAlign = TextAlign.Center,353                        modifier = Modifier.fillMaxWidth()354                            .clip(RoundedCornerShape(8.dp))355                            .clickable { onNavigate(PeachNav.RecoveryEntry) }356                            .padding(vertical = 8.dp),357                    )358                }359            }360361            if (!state.hasVault) {362                Spacer(Modifier.height(24.dp))363                RestoreTabs(onNavigate = onNavigate)364            }365        }366    }367}368369@Composable370private fun FieldLabel(text: String) {371    Text(text.uppercase(), color = peachColors.T2, style = PeachType.labelMono.copy(letterSpacing = 0.08.em))372}373374/** IBM Plex Mono 18sp, wide tracking — the create-vault input style (spec §5.2). */375private fun mono18Spaced() = TextStyle(fontFamily = PeachType.Mono, fontSize = 18.sp, letterSpacing = 0.18.em)376377@Composable378private fun GlassPanel(modifier: Modifier = Modifier, content: @Composable androidx.compose.foundation.layout.ColumnScope.() -> Unit) {379    Column(380        modifier381            .fillMaxWidth()382            .clip(RoundedCornerShape(18.dp))383            .background(Color(0xE0131109))384            .border(1.dp, peachColors.T3, RoundedCornerShape(18.dp))385            .padding(20.dp),386        content = content,387    )388}389390@Composable391private fun UnderlineField(392    value: String,393    onChange: (String) -> Unit,394    placeholder: String,395    textStyle: TextStyle,396    imeAction: ImeAction,397    onImeAction: () -> Unit,398    keyboardType: KeyboardType = KeyboardType.Password,399    masked: Boolean = true,400) {401    val accent = LocalPeachAccent.current402    val interaction = remember { MutableInteractionSource() }403    val focused by interaction.collectIsFocusedAsState()404    val hairline = peachColors.T3405    BasicTextField(406        value = value,407        onValueChange = onChange,408        singleLine = true,409        textStyle = textStyle.copy(color = peachColors.T0, textAlign = TextAlign.Center),410        cursorBrush = SolidColor(accent),411        visualTransformation = if (masked) PasswordVisualTransformation() else VisualTransformation.None,412        keyboardOptions = KeyboardOptions(keyboardType = keyboardType, imeAction = imeAction),413        keyboardActions = KeyboardActions(onGo = { onImeAction() }, onNext = { onImeAction() }),414        interactionSource = interaction,415        modifier = Modifier416            .fillMaxWidth()417            .drawBehind {418                drawRect(419                    color = if (focused) accent else hairline,420                    topLeft = Offset(0f, size.height - 1.dp.toPx()),421                    size = Size(size.width, 1.dp.toPx()),422                )423            }424            .padding(vertical = 8.dp),425        decorationBox = { inner ->426            Box(contentAlignment = Alignment.Center) {427                if (value.isEmpty()) {428                    Text(placeholder, style = textStyle.copy(color = peachColors.T2, textAlign = TextAlign.Center))429                }430                inner()431            }432        },433    )434}435436@Composable437private fun AccentButton(label: String, enabled: Boolean, onClick: () -> Unit) {438    val accent = LocalPeachAccent.current439    Box(440        modifier = Modifier441            .fillMaxWidth()442            .alpha(if (enabled) 1f else 0.5f)443            .clip(RoundedCornerShape(10.dp))444            .background(accent)445            .clickable(enabled = enabled, onClick = onClick)446            .padding(vertical = 13.dp),447        contentAlignment = Alignment.Center,448    ) {449        Text(450            label,451            color = Color.White,452            style = TextStyle(fontFamily = PeachType.Body, fontSize = 13.sp, letterSpacing = 0.06.em),453        )454    }455}456457@OptIn(ExperimentalLayoutApi::class)458@Composable459private fun RestoreTabs(onNavigate: (PeachNav) -> Unit) {460    val tabs = listOf(461        "PeachScript" to PeachNav.Import,462        "CSV" to PeachNav.Import,463        "Codex" to PeachNav.CodexRestore,464    )465    Column(horizontalAlignment = Alignment.CenterHorizontally) {466        Text("restore instead", color = peachColors.T1, style = PeachType.labelMono)467        Spacer(Modifier.height(10.dp))468        // These four barely fit one line at 411dp. A plain Row has nowhere to469        // put the overflow, so it hands the last pill near-zero width — the470        // label stacks one letter per line and then disappears entirely,471        // leaving a bordered box with no text. Wrap instead, and never let a472        // label break mid-word.473        FlowRow(474            horizontalArrangement = Arrangement.spacedBy(6.dp, Alignment.CenterHorizontally),475            verticalArrangement = Arrangement.spacedBy(6.dp),476        ) {477            tabs.forEach { (label, dest) ->478                Box(479                    modifier = Modifier480                        .border(1.dp, peachColors.T3, RoundedCornerShape(8.dp))481                        .clickable { onNavigate(dest) }482                        .padding(horizontal = 10.dp, vertical = 8.dp),483                ) {484                    Text(485                        label,486                        color = peachColors.T1,487                        style = PeachType.sortPill,488                        maxLines = 1,489                        softWrap = false,490                    )491                }492            }493        }494    }495}