583 lines
20 KiB
Kotlin
583 lines
20 KiB
Kotlin
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package com.seteclabs.cellguard.ui
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import androidx.compose.animation.animateColorAsState
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import androidx.compose.animation.core.RepeatMode
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import androidx.compose.animation.core.animateFloat
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import androidx.compose.animation.core.infiniteRepeatable
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import androidx.compose.animation.core.rememberInfiniteTransition
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import androidx.compose.animation.core.tween
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import androidx.compose.foundation.background
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import androidx.compose.foundation.border
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import androidx.compose.foundation.layout.Arrangement
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import androidx.compose.foundation.layout.Box
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import androidx.compose.foundation.layout.Column
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import androidx.compose.foundation.layout.PaddingValues
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import androidx.compose.foundation.layout.Row
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import androidx.compose.foundation.layout.Spacer
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import androidx.compose.foundation.layout.fillMaxWidth
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import androidx.compose.foundation.layout.height
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import androidx.compose.foundation.layout.padding
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import androidx.compose.foundation.layout.size
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import androidx.compose.foundation.layout.width
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import androidx.compose.foundation.lazy.LazyColumn
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import androidx.compose.foundation.lazy.items
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import androidx.compose.foundation.shape.CircleShape
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import androidx.compose.foundation.shape.RoundedCornerShape
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import androidx.compose.material3.Card
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import androidx.compose.material3.CardDefaults
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import androidx.compose.material3.HorizontalDivider
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import androidx.compose.material3.MaterialTheme
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import androidx.compose.material3.Scaffold
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import androidx.compose.material3.Switch
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import androidx.compose.material3.SwitchDefaults
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import androidx.compose.material3.Text
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import androidx.compose.runtime.Composable
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import androidx.compose.runtime.collectAsState
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import androidx.compose.runtime.getValue
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import androidx.compose.ui.Alignment
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import androidx.compose.ui.Modifier
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import androidx.compose.ui.draw.alpha
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import androidx.compose.ui.draw.clip
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import androidx.compose.ui.graphics.Color
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import androidx.compose.ui.text.font.FontFamily
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import androidx.compose.ui.text.font.FontWeight
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import androidx.compose.ui.text.style.TextOverflow
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import androidx.compose.ui.unit.dp
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import androidx.compose.ui.unit.sp
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import com.seteclabs.cellguard.CellGuardViewModel
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import com.seteclabs.cellguard.model.Alert
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import com.seteclabs.cellguard.model.CellGuardState
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import com.seteclabs.cellguard.model.Tower
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import java.text.SimpleDateFormat
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import java.util.Date
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import java.util.Locale
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// ---- header status derivation ----------------------------------------------
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private enum class HeaderState(val label: String, val color: Color) {
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ALERT("ALERT", CgRed),
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ARMED("ARMED", CgGreen),
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OFF("OFF", CgGray),
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}
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private fun headerStateOf(s: CellGuardState): HeaderState = when {
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s.alerts.isNotEmpty() || s.suspect.isNotEmpty() -> HeaderState.ALERT
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s.blockEnabled || s.detectEnabled -> HeaderState.ARMED
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else -> HeaderState.OFF
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}
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private fun ratColor(rat: String): Color = when (rat.uppercase()) {
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"LTE" -> CgGreen
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"NR", "5G" -> CgCyan
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"WCDMA", "TDSCDMA", "UMTS" -> CgAmber
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"GSM", "CDMA", "2G" -> CgRed
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else -> CgGray
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}
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// Unknown/unavailable numeric fields come through as -1; show a dash instead.
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private fun dash(v: Long?): String = if (v != null && v >= 0) v.toString() else "—"
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private fun dash(v: Int?): String = if (v != null && v >= 0) v.toString() else "—"
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/** Best label for a tower row: carrier name, else PLMN, else CI, else dash. */
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private fun towerLabel(t: Tower): String = t.op.ifBlank {
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(t.mcc + t.mnc).ifBlank { if (t.ci >= 0) t.ci.toString() else "—" }
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}
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// ---- top-level screen -------------------------------------------------------
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@Composable
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fun MainScreen(vm: CellGuardViewModel) {
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val state by vm.state.collectAsState()
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Scaffold(containerColor = MaterialTheme.colorScheme.background) { inner ->
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LazyColumn(
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modifier = Modifier
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.fillMaxWidth()
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.padding(inner),
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contentPadding = PaddingValues(16.dp),
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verticalArrangement = Arrangement.spacedBy(14.dp),
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) {
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item { HeaderBar(state) }
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item {
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ToggleRow(
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title = "Block 2G/3G",
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subtitle = "Force LTE/5G, refuse legacy downgrade",
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checked = state.blockEnabled,
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onCheckedChange = vm::setBlock,
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)
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}
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item {
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ToggleRow(
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title = "IMSI-catcher detection",
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subtitle = "Scan baseband frames for CSS signatures",
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checked = state.detectEnabled,
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onCheckedChange = vm::setDetect,
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)
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}
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item { ServingCard(state) }
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item { NeighborTable(state.neighbors) }
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item {
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SectionLabel("ALERTS", count = state.alerts.size)
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}
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if (state.alerts.isEmpty()) {
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item { EmptyHint("No alerts. Baseband looks clean.") }
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} else {
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items(state.alerts) { AlertRow(it) }
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}
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item { Spacer(Modifier.height(8.dp)) }
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}
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}
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}
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// ---- header -----------------------------------------------------------------
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@Composable
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private fun HeaderBar(state: CellGuardState) {
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val hs = headerStateOf(state)
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// Pulse the dot only while alerting.
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val pulse = rememberInfiniteTransition(label = "pulse")
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val pulseAlpha by pulse.animateFloat(
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initialValue = 0.35f,
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targetValue = 1f,
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animationSpec = infiniteRepeatable(
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animation = tween(650),
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repeatMode = RepeatMode.Reverse,
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),
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label = "pulseAlpha",
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)
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val dotAlpha = if (hs == HeaderState.ALERT) pulseAlpha else 1f
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val color by animateColorAsState(hs.color, label = "hdrColor")
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Row(
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verticalAlignment = Alignment.CenterVertically,
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modifier = Modifier.fillMaxWidth(),
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) {
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Column(Modifier.weight(1f)) {
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Text(
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"CELLGUARD",
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color = MaterialTheme.colorScheme.onBackground,
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fontFamily = FontFamily.Monospace,
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fontWeight = FontWeight.Bold,
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fontSize = 20.sp,
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)
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Text(
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"baseband monitor",
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color = MaterialTheme.colorScheme.onSurfaceVariant,
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style = MaterialTheme.typography.bodySmall,
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)
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}
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Row(
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verticalAlignment = Alignment.CenterVertically,
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modifier = Modifier
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.clip(RoundedCornerShape(999.dp))
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.background(color.copy(alpha = 0.12f))
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.border(1.dp, color.copy(alpha = 0.5f), RoundedCornerShape(999.dp))
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.padding(horizontal = 12.dp, vertical = 7.dp),
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) {
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Box(
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Modifier
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.size(9.dp)
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.alpha(dotAlpha)
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.clip(CircleShape)
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.background(color),
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)
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Spacer(Modifier.width(8.dp))
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Text(
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hs.label,
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color = color,
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fontFamily = FontFamily.Monospace,
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fontWeight = FontWeight.Bold,
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fontSize = 13.sp,
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)
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}
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}
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}
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// ---- toggles ----------------------------------------------------------------
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@Composable
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private fun ToggleRow(
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title: String,
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subtitle: String,
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checked: Boolean,
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onCheckedChange: (Boolean) -> Unit,
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) {
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Card(
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colors = CardDefaults.cardColors(containerColor = MaterialTheme.colorScheme.surface),
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shape = RoundedCornerShape(16.dp),
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modifier = Modifier.fillMaxWidth(),
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) {
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Row(
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verticalAlignment = Alignment.CenterVertically,
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modifier = Modifier
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.fillMaxWidth()
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.padding(horizontal = 16.dp, vertical = 14.dp),
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) {
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Column(Modifier.weight(1f)) {
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Text(
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title,
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color = MaterialTheme.colorScheme.onSurface,
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style = MaterialTheme.typography.titleMedium,
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)
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Text(
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subtitle,
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color = MaterialTheme.colorScheme.onSurfaceVariant,
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style = MaterialTheme.typography.bodySmall,
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)
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}
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Switch(
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checked = checked,
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onCheckedChange = onCheckedChange,
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colors = SwitchDefaults.colors(
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checkedThumbColor = MaterialTheme.colorScheme.onPrimary,
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checkedTrackColor = MaterialTheme.colorScheme.primary,
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uncheckedThumbColor = CgOnSurfaceMuted,
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uncheckedTrackColor = CgSurfaceHi,
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uncheckedBorderColor = CgOutline,
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),
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)
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}
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}
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}
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// ---- serving cell -----------------------------------------------------------
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@Composable
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private fun ServingCard(state: CellGuardState) {
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val serving = state.serving
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val rat = serving?.rat?.takeIf { it.isNotBlank() } ?: state.rat.ifBlank { "—" }
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val operator = serving?.op?.takeIf { it.isNotBlank() }
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?: state.operator.ifBlank { "Unknown operator" }
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val plmn = state.plmn.ifBlank {
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serving?.let { "${it.mcc}${it.mnc}".takeIf { s -> s.isNotBlank() } } ?: "—"
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}
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Card(
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colors = CardDefaults.cardColors(containerColor = MaterialTheme.colorScheme.surface),
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shape = RoundedCornerShape(16.dp),
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modifier = Modifier.fillMaxWidth(),
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) {
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Column(Modifier.padding(16.dp)) {
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Row(verticalAlignment = Alignment.CenterVertically) {
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RatBadge(rat)
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Spacer(Modifier.width(12.dp))
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Column(Modifier.weight(1f)) {
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Text(
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operator,
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color = MaterialTheme.colorScheme.onSurface,
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style = MaterialTheme.typography.titleMedium,
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maxLines = 1,
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overflow = TextOverflow.Ellipsis,
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)
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Text(
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"PLMN $plmn",
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color = MaterialTheme.colorScheme.onSurfaceVariant,
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style = MaterialTheme.typography.bodySmall,
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)
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}
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Text(
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"SERVING",
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color = MaterialTheme.colorScheme.onSurfaceVariant,
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style = MaterialTheme.typography.labelSmall,
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)
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}
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Spacer(Modifier.height(14.dp))
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HorizontalDivider(color = MaterialTheme.colorScheme.outline)
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Spacer(Modifier.height(14.dp))
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Row(Modifier.fillMaxWidth()) {
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Metric("CI", dash(serving?.ci), Modifier.weight(1f))
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Metric("PCI", dash(serving?.pci), Modifier.weight(1f))
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}
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Spacer(Modifier.height(12.dp))
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Row(Modifier.fillMaxWidth()) {
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Metric("TAC", dash(serving?.tac), Modifier.weight(1f))
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Metric("EARFCN", dash(serving?.earfcn), Modifier.weight(1f))
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}
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if (serving?.rsrp != null || serving?.rsrq != null) {
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Spacer(Modifier.height(12.dp))
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Row(Modifier.fillMaxWidth()) {
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Metric(
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"RSRP",
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serving?.rsrp?.let { "$it dBm" } ?: "—",
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Modifier.weight(1f),
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)
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Metric(
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"RSRQ",
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serving?.rsrq?.let { "$it dB" } ?: "—",
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Modifier.weight(1f),
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)
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}
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}
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}
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}
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}
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@Composable
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private fun Metric(label: String, value: String, modifier: Modifier = Modifier) {
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Column(modifier) {
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Text(
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label,
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color = MaterialTheme.colorScheme.onSurfaceVariant,
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style = MaterialTheme.typography.labelSmall,
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)
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Spacer(Modifier.height(2.dp))
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Text(
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value,
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color = MaterialTheme.colorScheme.onSurface,
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fontFamily = FontFamily.Monospace,
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fontWeight = FontWeight.Medium,
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fontSize = 16.sp,
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)
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}
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}
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@Composable
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private fun RatBadge(rat: String) {
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val c = ratColor(rat)
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Box(
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contentAlignment = Alignment.Center,
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modifier = Modifier
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.clip(RoundedCornerShape(10.dp))
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.background(c.copy(alpha = 0.14f))
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.border(1.dp, c.copy(alpha = 0.55f), RoundedCornerShape(10.dp))
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.padding(horizontal = 12.dp, vertical = 8.dp),
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) {
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Text(
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rat.uppercase(),
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color = c,
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||
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fontFamily = FontFamily.Monospace,
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||
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fontWeight = FontWeight.Bold,
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||
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fontSize = 15.sp,
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)
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||
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}
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||
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}
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// ---- neighbor table ---------------------------------------------------------
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||
|
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@Composable
|
||
|
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private fun NeighborTable(neighbors: List<Tower>) {
|
||
|
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Card(
|
||
|
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colors = CardDefaults.cardColors(containerColor = MaterialTheme.colorScheme.surface),
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||
|
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shape = RoundedCornerShape(16.dp),
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||
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modifier = Modifier.fillMaxWidth(),
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||
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) {
|
||
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Column(Modifier.padding(vertical = 4.dp)) {
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||
|
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Row(
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||
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verticalAlignment = Alignment.CenterVertically,
|
||
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modifier = Modifier.padding(horizontal = 16.dp, vertical = 12.dp),
|
||
|
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) {
|
||
|
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Text(
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||
|
|
"NEIGHBOR TOWERS",
|
||
|
|
color = MaterialTheme.colorScheme.onSurface,
|
||
|
|
style = MaterialTheme.typography.labelSmall,
|
||
|
|
fontWeight = FontWeight.Bold,
|
||
|
|
)
|
||
|
|
Spacer(Modifier.weight(1f))
|
||
|
|
Text(
|
||
|
|
neighbors.size.toString(),
|
||
|
|
color = MaterialTheme.colorScheme.onSurfaceVariant,
|
||
|
|
style = MaterialTheme.typography.labelSmall,
|
||
|
|
)
|
||
|
|
}
|
||
|
|
HorizontalDivider(color = MaterialTheme.colorScheme.outline)
|
||
|
|
|
||
|
|
NeighborHeaderRow()
|
||
|
|
HorizontalDivider(color = MaterialTheme.colorScheme.outline.copy(alpha = 0.5f))
|
||
|
|
|
||
|
|
if (neighbors.isEmpty()) {
|
||
|
|
EmptyHint("No neighbors reported.")
|
||
|
|
} else {
|
||
|
|
neighbors.forEachIndexed { i, t ->
|
||
|
|
NeighborDataRow(t)
|
||
|
|
if (i < neighbors.lastIndex) {
|
||
|
|
HorizontalDivider(
|
||
|
|
color = MaterialTheme.colorScheme.outline.copy(alpha = 0.25f),
|
||
|
|
modifier = Modifier.padding(horizontal = 12.dp),
|
||
|
|
)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Column weights shared between header + data rows so they line up.
|
||
|
|
private const val W_ID = 2.2f
|
||
|
|
private const val W_RAT = 1.5f
|
||
|
|
private const val W_PCI = 1.1f
|
||
|
|
private const val W_TAC = 1.3f
|
||
|
|
private const val W_EARFCN = 1.5f
|
||
|
|
private const val W_RSRP = 1.3f
|
||
|
|
|
||
|
|
@Composable
|
||
|
|
private fun NeighborHeaderRow() {
|
||
|
|
Row(
|
||
|
|
modifier = Modifier
|
||
|
|
.fillMaxWidth()
|
||
|
|
.padding(horizontal = 12.dp, vertical = 8.dp),
|
||
|
|
) {
|
||
|
|
Th("ID", W_ID)
|
||
|
|
Th("RAT", W_RAT)
|
||
|
|
Th("PCI", W_PCI)
|
||
|
|
Th("TAC", W_TAC)
|
||
|
|
Th("EARFCN", W_EARFCN)
|
||
|
|
Th("RSRP", W_RSRP)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
@Composable
|
||
|
|
private fun NeighborDataRow(t: Tower) {
|
||
|
|
Row(
|
||
|
|
verticalAlignment = Alignment.CenterVertically,
|
||
|
|
modifier = Modifier
|
||
|
|
.fillMaxWidth()
|
||
|
|
.padding(horizontal = 12.dp, vertical = 10.dp),
|
||
|
|
) {
|
||
|
|
Td(towerLabel(t), W_ID, MaterialTheme.colorScheme.onSurface)
|
||
|
|
Box(Modifier.weight(W_RAT)) {
|
||
|
|
Text(
|
||
|
|
t.rat.uppercase().ifBlank { "—" },
|
||
|
|
color = ratColor(t.rat),
|
||
|
|
fontFamily = FontFamily.Monospace,
|
||
|
|
fontWeight = FontWeight.Bold,
|
||
|
|
fontSize = 12.sp,
|
||
|
|
maxLines = 1,
|
||
|
|
overflow = TextOverflow.Ellipsis,
|
||
|
|
)
|
||
|
|
}
|
||
|
|
Td(dash(t.pci), W_PCI, MaterialTheme.colorScheme.onSurfaceVariant)
|
||
|
|
Td(dash(t.tac), W_TAC, MaterialTheme.colorScheme.onSurfaceVariant)
|
||
|
|
Td(dash(t.earfcn), W_EARFCN, MaterialTheme.colorScheme.onSurfaceVariant)
|
||
|
|
Td(t.rsrp?.toString() ?: "—", W_RSRP, MaterialTheme.colorScheme.onSurfaceVariant)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
@Composable
|
||
|
|
private fun androidx.compose.foundation.layout.RowScope.Th(text: String, weight: Float) {
|
||
|
|
Text(
|
||
|
|
text,
|
||
|
|
color = MaterialTheme.colorScheme.onSurfaceVariant,
|
||
|
|
style = MaterialTheme.typography.labelSmall,
|
||
|
|
maxLines = 1,
|
||
|
|
overflow = TextOverflow.Ellipsis,
|
||
|
|
modifier = Modifier.weight(weight),
|
||
|
|
)
|
||
|
|
}
|
||
|
|
|
||
|
|
@Composable
|
||
|
|
private fun androidx.compose.foundation.layout.RowScope.Td(text: String, weight: Float, color: Color) {
|
||
|
|
Text(
|
||
|
|
text,
|
||
|
|
color = color,
|
||
|
|
fontFamily = FontFamily.Monospace,
|
||
|
|
fontSize = 13.sp,
|
||
|
|
maxLines = 1,
|
||
|
|
overflow = TextOverflow.Ellipsis,
|
||
|
|
modifier = Modifier.weight(weight),
|
||
|
|
)
|
||
|
|
}
|
||
|
|
|
||
|
|
// ---- alerts -----------------------------------------------------------------
|
||
|
|
|
||
|
|
private val ALERT_TIME_FMT = SimpleDateFormat("HH:mm:ss", Locale.US)
|
||
|
|
|
||
|
|
@Composable
|
||
|
|
private fun AlertRow(a: Alert) {
|
||
|
|
Card(
|
||
|
|
colors = CardDefaults.cardColors(
|
||
|
|
containerColor = CgRed.copy(alpha = 0.10f),
|
||
|
|
),
|
||
|
|
shape = RoundedCornerShape(14.dp),
|
||
|
|
modifier = Modifier.fillMaxWidth(),
|
||
|
|
) {
|
||
|
|
Row(
|
||
|
|
modifier = Modifier
|
||
|
|
.fillMaxWidth()
|
||
|
|
.border(1.dp, CgRed.copy(alpha = 0.35f), RoundedCornerShape(14.dp))
|
||
|
|
.padding(14.dp),
|
||
|
|
) {
|
||
|
|
Box(
|
||
|
|
Modifier
|
||
|
|
.padding(top = 5.dp)
|
||
|
|
.size(8.dp)
|
||
|
|
.clip(CircleShape)
|
||
|
|
.background(CgRed),
|
||
|
|
)
|
||
|
|
Spacer(Modifier.width(12.dp))
|
||
|
|
Column(Modifier.weight(1f)) {
|
||
|
|
Row(verticalAlignment = Alignment.CenterVertically) {
|
||
|
|
Text(
|
||
|
|
a.kind.uppercase().ifBlank { "ALERT" },
|
||
|
|
color = CgRed,
|
||
|
|
fontFamily = FontFamily.Monospace,
|
||
|
|
fontWeight = FontWeight.Bold,
|
||
|
|
fontSize = 12.sp,
|
||
|
|
)
|
||
|
|
Spacer(Modifier.weight(1f))
|
||
|
|
Text(
|
||
|
|
if (a.ts > 0) ALERT_TIME_FMT.format(Date(a.ts)) else "",
|
||
|
|
color = MaterialTheme.colorScheme.onSurfaceVariant,
|
||
|
|
style = MaterialTheme.typography.bodySmall,
|
||
|
|
)
|
||
|
|
}
|
||
|
|
if (a.detail.isNotBlank()) {
|
||
|
|
Spacer(Modifier.height(3.dp))
|
||
|
|
Text(
|
||
|
|
a.detail,
|
||
|
|
color = MaterialTheme.colorScheme.onSurface,
|
||
|
|
style = MaterialTheme.typography.bodySmall,
|
||
|
|
)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// ---- shared bits ------------------------------------------------------------
|
||
|
|
|
||
|
|
@Composable
|
||
|
|
private fun SectionLabel(text: String, count: Int) {
|
||
|
|
Row(
|
||
|
|
verticalAlignment = Alignment.CenterVertically,
|
||
|
|
modifier = Modifier.padding(top = 4.dp, start = 4.dp, end = 4.dp),
|
||
|
|
) {
|
||
|
|
Text(
|
||
|
|
text,
|
||
|
|
color = MaterialTheme.colorScheme.onSurfaceVariant,
|
||
|
|
style = MaterialTheme.typography.labelSmall,
|
||
|
|
fontWeight = FontWeight.Bold,
|
||
|
|
)
|
||
|
|
Spacer(Modifier.width(8.dp))
|
||
|
|
if (count > 0) {
|
||
|
|
Box(
|
||
|
|
contentAlignment = Alignment.Center,
|
||
|
|
modifier = Modifier
|
||
|
|
.clip(RoundedCornerShape(999.dp))
|
||
|
|
.background(CgRed.copy(alpha = 0.18f))
|
||
|
|
.padding(horizontal = 8.dp, vertical = 2.dp),
|
||
|
|
) {
|
||
|
|
Text(
|
||
|
|
count.toString(),
|
||
|
|
color = CgRed,
|
||
|
|
fontFamily = FontFamily.Monospace,
|
||
|
|
fontWeight = FontWeight.Bold,
|
||
|
|
fontSize = 11.sp,
|
||
|
|
)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
@Composable
|
||
|
|
private fun EmptyHint(text: String) {
|
||
|
|
Text(
|
||
|
|
text,
|
||
|
|
color = MaterialTheme.colorScheme.onSurfaceVariant,
|
||
|
|
style = MaterialTheme.typography.bodySmall,
|
||
|
|
modifier = Modifier.padding(horizontal = 16.dp, vertical = 14.dp),
|
||
|
|
)
|
||
|
|
}
|