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.LockRuneString61import com.peachpasswords.ui.components.PeachMark62import com.peachpasswords.ui.components.PeachWordmark63import 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@Composable74fun LockScreen(75    onUnlocked: (PeachNav) -> Unit,76    onNavigate: (PeachNav) -> Unit,77    /**78     * True when an autofill-driven navigation (e.g. the "+ Save to Peach"79     * create chip) is queued and waiting for the vault to unlock. When set,80     * [onUnlocked] is skipped: the autofill nav path at the PeachAppNavHost81     * scope will navigate to its own destination (the new-entry editor with82     * URL prefilled), and we must not clobber it with the last-viewed entry.83     * Two LaunchedEffects firing on the same unlock would otherwise race --84     * the LockScreen one wins because [onUnlocked] uses popUpTo(0) inclusive.85     */86    autofillPending: Boolean = false,87    vm: LockViewModel = hiltViewModel(),88) {89    val state by vm.state.collectAsState()90    val accent = LocalPeachAccent.current91    val context = LocalContext.current92    val activity = context as? FragmentActivity93    val canBiometric = remember(state.hasVault) { vm.canTryBiometric() }9495    var password by remember { mutableStateOf("") }96    var confirm by remember { mutableStateOf("") }97    var reveal by remember { mutableStateOf(false) }98    val createScore = remember(password) { scorePassword(password) }99    // Why the create button is disabled, shown on the button itself. Without100    // it the button just silently does nothing (browser parity: Lock.tsx's101    // createBlockerMessage). Null before typing -- no scolding on an empty form.102    val createBlocker = if (state.hasVault || password.isEmpty()) null103                        else createValidationError(password, confirm, createScore)104105    LaunchedEffect(state.unlocked, autofillPending) {106        if (state.unlocked) {107            // A freshly created vault routes through recovery-word setup before the list;108            // an ordinary unlock lands on the last-viewed entry (brief Fix 3). The autofill109            // nav host handles its own destinations when autofillPending is set; stepping in110            // here would race with it (this LaunchedEffect's popUpTo(0) wins by ordering).111            if (state.created) onNavigate(PeachNav.RecoverySetup)112            else if (autofillPending) Unit113            else onUnlocked(vm.postUnlockDestination())114        }115    }116117    // Auto-offer biometric unlock shortly after the lock screen appears.118    LaunchedEffect(canBiometric) {119        if (canBiometric && activity != null && !state.unlocked) {120            kotlinx.coroutines.delay(300)121            vm.biometricUnlock(activity)122        }123    }124125    // Shake the panel on each failed unlock (brief Phase 4: 0→−12→10→−8→6→0 over ~400ms).126    val shake = remember { Animatable(0f) }127    LaunchedEffect(state.shakeNonce) {128        if (state.shakeNonce > 0) {129            shake.animateTo(130                targetValue = 0f,131                animationSpec = keyframes {132                    durationMillis = 400133                    -12f at 60; 10f at 140; -8f at 230; 6f at 320; 0f at 400134                },135            )136        }137    }138139    ShellBackground {140        PeachWordmark(141            modifier = Modifier.align(Alignment.TopStart).systemBarsPadding().padding(start = 20.dp, top = 8.dp),142        )143144        Column(145            modifier = Modifier146                .align(Alignment.Center)147                .fillMaxHeight()148                .widthIn(max = com.peachpasswords.ui.theme.CONTENT_MAX_WIDTH)149                .fillMaxWidth()150                .systemBarsPadding()151                .padding(horizontal = 28.dp),152            verticalArrangement = Arrangement.Center,153            horizontalAlignment = Alignment.CenterHorizontally,154        ) {155            // Hero: centered PeachMark · eyebrow · headline.156            PeachMark(size = 80.dp)157            Spacer(Modifier.height(18.dp))158            Text(159                text = if (state.hasVault) "VAULT LOCKED" else "NEW VAULT",160                color = peachColors.T2,161                style = PeachType.lockEyebrow,162            )163            Spacer(Modifier.height(10.dp))164            Text(165                text = if (state.hasVault) "unlock\nyour vault." else "keep your\nsecrets.",166                color = peachColors.T0,167                style = if (state.hasVault) PeachType.lockHeadline else PeachType.createHeadline,168                textAlign = TextAlign.Center,169            )170            Spacer(Modifier.height(14.dp))171            LockRuneString()172            Spacer(Modifier.height(24.dp))173174            // Glass panel holding the credential inputs.175            GlassPanel(176                modifier = Modifier.offset { IntOffset(shake.value.dp.roundToPx(), 0) },177            ) {178                Row(verticalAlignment = Alignment.CenterVertically) {179                    FieldLabel(if (state.hasVault) "master password" else "create a master password")180                    if (!state.hasVault) {181                        Spacer(Modifier.weight(1f))182                        Text(183                            text = if (reveal) "hide" else "show",184                            color = accent,185                            style = PeachType.labelMono.copy(fontSize = 11.sp),186                            modifier = Modifier187                                .clip(RoundedCornerShape(6.dp))188                                .clickable { reveal = !reveal }189                                .padding(horizontal = 6.dp, vertical = 4.dp),190                        )191                    }192                }193                Spacer(Modifier.height(4.dp))194                UnderlineField(195                    value = password,196                    onChange = { password = it; vm.clearError() },197                    placeholder = "••••••••••",198                    textStyle = if (state.hasVault) PeachType.unlockInput else mono18Spaced(),199                    imeAction = if (state.hasVault) ImeAction.Go else ImeAction.Next,200                    onImeAction = { if (state.hasVault) vm.unlock(password) },201                    masked = state.hasVault || !reveal,202                )203204                if (!state.hasVault) {205                    Spacer(Modifier.height(16.dp))206                    FieldLabel("confirm password")207                    Spacer(Modifier.height(4.dp))208                    UnderlineField(209                        value = confirm,210                        onChange = { confirm = it; vm.clearError() },211                        placeholder = "••••••••••",212                        textStyle = mono18Spaced(),213                        imeAction = ImeAction.Go,214                        onImeAction = { vm.create(password, confirm) },215                        masked = !reveal,216                    )217218                    Spacer(Modifier.height(14.dp))219                    if (password.isEmpty()) {220                        Text(221                            text = "At least $MIN_PASSWORD_LENGTH characters. The vault is created once both fields match and pass the strength check.",222                            color = peachColors.T2,223                            style = PeachType.hint,224                            textAlign = TextAlign.Center,225                        )226                    } else {227                        StrengthBar(score = createScore)228                        Spacer(Modifier.height(6.dp))229                        Text(230                            text = "strength: ${strengthLabel(createScore)}",231                            color = strengthColor(createScore),232                            style = PeachType.labelMono,233                            modifier = Modifier.fillMaxWidth(),234                            textAlign = TextAlign.Center,235                        )236                    }237                }238239                Text(240                    text = state.error ?: " ",241                    color = peachColors.Breach,242                    style = PeachType.labelMono.copy(fontSize = 11.sp),243                    textAlign = TextAlign.Center,244                    modifier = Modifier.fillMaxWidth().padding(top = 12.dp).height(18.dp),245                )246247                Spacer(Modifier.height(4.dp))248                AccentButton(249                    label = when {250                        state.hasVault -> "unlock"251                        state.loading -> "creating..."252                        createBlocker != null -> createBlocker253                        else -> "create vault"254                    },255                    enabled = !state.loading && (state.hasVault || canSubmitCreateVault(password, confirm, createScore)),256                    onClick = { if (state.hasVault) vm.unlock(password) else vm.create(password, confirm) },257                )258259                if (state.hasVault && canBiometric && activity != null) {260                    Spacer(Modifier.height(12.dp))261                    Text(262                        text = "Use biometrics",263                        color = accent,264                        style = PeachType.labelMono.copy(letterSpacing = 0.08.em),265                        textAlign = TextAlign.Center,266                        modifier = Modifier.fillMaxWidth()267                            .clip(RoundedCornerShape(8.dp))268                            .clickable { vm.biometricUnlock(activity) }269                            .padding(vertical = 8.dp),270                    )271                }272273                if (state.hasVault) {274                    Spacer(Modifier.height(8.dp))275                    Text(276                        text = "Forgot your password?",277                        color = peachColors.T2,278                        style = PeachType.labelMono.copy(fontSize = 11.sp),279                        textAlign = TextAlign.Center,280                        modifier = Modifier.fillMaxWidth()281                            .clip(RoundedCornerShape(8.dp))282                            .clickable { onNavigate(PeachNav.RecoveryEntry) }283                            .padding(vertical = 8.dp),284                    )285                }286            }287288            if (!state.hasVault) {289                Spacer(Modifier.height(24.dp))290                RestoreTabs(onNavigate = onNavigate)291            }292        }293    }294}295296@Composable297private fun FieldLabel(text: String) {298    Text(text.uppercase(), color = peachColors.T2, style = PeachType.labelMono.copy(letterSpacing = 0.08.em))299}300301/** IBM Plex Mono 18sp, wide tracking — the create-vault input style (spec §5.2). */302private fun mono18Spaced() = TextStyle(fontFamily = PeachType.Mono, fontSize = 18.sp, letterSpacing = 0.18.em)303304@Composable305private fun GlassPanel(modifier: Modifier = Modifier, content: @Composable androidx.compose.foundation.layout.ColumnScope.() -> Unit) {306    Column(307        modifier308            .fillMaxWidth()309            .clip(RoundedCornerShape(18.dp))310            .background(Color(0xE0131109))311            .border(1.dp, peachColors.T3, RoundedCornerShape(18.dp))312            .padding(20.dp),313        content = content,314    )315}316317@Composable318private fun UnderlineField(319    value: String,320    onChange: (String) -> Unit,321    placeholder: String,322    textStyle: TextStyle,323    imeAction: ImeAction,324    onImeAction: () -> Unit,325    masked: Boolean = true,326) {327    val accent = LocalPeachAccent.current328    val interaction = remember { MutableInteractionSource() }329    val focused by interaction.collectIsFocusedAsState()330    val hairline = peachColors.T3331    BasicTextField(332        value = value,333        onValueChange = onChange,334        singleLine = true,335        textStyle = textStyle.copy(color = peachColors.T0, textAlign = TextAlign.Center),336        cursorBrush = SolidColor(accent),337        visualTransformation = if (masked) PasswordVisualTransformation() else VisualTransformation.None,338        keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Password, imeAction = imeAction),339        keyboardActions = KeyboardActions(onGo = { onImeAction() }, onNext = { onImeAction() }),340        interactionSource = interaction,341        modifier = Modifier342            .fillMaxWidth()343            .drawBehind {344                drawRect(345                    color = if (focused) accent else hairline,346                    topLeft = Offset(0f, size.height - 1.dp.toPx()),347                    size = Size(size.width, 1.dp.toPx()),348                )349            }350            .padding(vertical = 8.dp),351        decorationBox = { inner ->352            Box(contentAlignment = Alignment.Center) {353                if (value.isEmpty()) {354                    Text(placeholder, style = textStyle.copy(color = peachColors.T2, textAlign = TextAlign.Center))355                }356                inner()357            }358        },359    )360}361362@Composable363private fun AccentButton(label: String, enabled: Boolean, onClick: () -> Unit) {364    val accent = LocalPeachAccent.current365    Box(366        modifier = Modifier367            .fillMaxWidth()368            .alpha(if (enabled) 1f else 0.5f)369            .clip(RoundedCornerShape(10.dp))370            .background(accent)371            .clickable(enabled = enabled, onClick = onClick)372            .padding(vertical = 13.dp),373        contentAlignment = Alignment.Center,374    ) {375        Text(376            label,377            color = Color.White,378            style = TextStyle(fontFamily = PeachType.Body, fontSize = 13.sp, letterSpacing = 0.06.em),379        )380    }381}382383@OptIn(ExperimentalLayoutApi::class)384@Composable385private fun RestoreTabs(onNavigate: (PeachNav) -> Unit) {386    val tabs = listOf(387        "PeachScript" to PeachNav.Import,388        "CSV" to PeachNav.Import,389        "Codex" to PeachNav.CodexRestore,390    )391    Column(horizontalAlignment = Alignment.CenterHorizontally) {392        Text("restore instead", color = peachColors.T1, style = PeachType.labelMono)393        Spacer(Modifier.height(10.dp))394        // These four barely fit one line at 411dp. A plain Row has nowhere to395        // put the overflow, so it hands the last pill near-zero width — the396        // label stacks one letter per line and then disappears entirely,397        // leaving a bordered box with no text. Wrap instead, and never let a398        // label break mid-word.399        FlowRow(400            horizontalArrangement = Arrangement.spacedBy(6.dp, Alignment.CenterHorizontally),401            verticalArrangement = Arrangement.spacedBy(6.dp),402        ) {403            tabs.forEach { (label, dest) ->404                Box(405                    modifier = Modifier406                        .border(1.dp, peachColors.T3, RoundedCornerShape(8.dp))407                        .clickable { onNavigate(dest) }408                        .padding(horizontal = 10.dp, vertical = 8.dp),409                ) {410                    Text(411                        label,412                        color = peachColors.T1,413                        style = PeachType.sortPill,414                        maxLines = 1,415                        softWrap = false,416                    )417                }418            }419        }420    }421}