fix(aprs): upload feedback, manual report reliability, station position

User testing round 3 (4.5.4): no success feedback on upload, aprs.fi
shows nothing, passcode calculator OK, notification present.

- Manual report now works even when service not running: ACTION_REPORT_NOW
  starts the service first (Toast "not configured" if missing callsign)
- Upload result feedback guaranteed: Toast always shows (short OK /
  long fail+reason), last result persisted (time/ok/detail) and shown
  in the settings card "Last report: HH:mm:ss OK/failed - detail"
- Position source: station position from settingsRepo (user decision)
  with live GPS last-known as fallback
- sendPacket reads the server confirmation line (short 3s timeout);
  server error text (Invalid/error) surfaces in Toast + card
- Strings EN/ZH/TR/IN/ID +4 keys
Verified: compileDebugKotlin all modules BUILD SUCCESSFUL,
check_strings 9 files OK.

app/src/main/java/com/rtbishop/look4sat/AprsForegroundService.kt

@@ -12,6 +12,7 @@ import android.widget.Toast
 import android.content.pm.ServiceInfo
 import android.os.Build
 import android.os.IBinder
+import com.rtbishop.look4sat.MainApplication
 import com.rtbishop.look4sat.core.presentation.R
 import com.rtbishop.look4sat.core.data.aprs.AprsConfig
 import com.rtbishop.look4sat.core.data.aprs.AprsStore
@@ -50,7 +51,13 @@ class AprsForegroundService : Service() {
     override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
         when (intent?.action) {
             ACTION_STOP -> stopReporting()
-            ACTION_REPORT_NOW -> reporter?.reportNow()
+            ACTION_REPORT_NOW -> {
+                if (reporter == null) {
+                    // 服务没在跑:先启动(未配置会 Toast 提示)
+                    startReporting()
+                }
+                reporter?.reportNow()
+            }
             else -> startReporting()
         }
         return START_STICKY
@@ -59,24 +66,29 @@ class AprsForegroundService : Service() {
     private fun startReporting() {
         val cfg = AprsStore.loadConfig(this)
         if (!cfg.enabled || cfg.callsign.isBlank()) {
+            runCatching {
+                Toast.makeText(this, getString(R.string.aprs_toast_not_configured), Toast.LENGTH_SHORT).show()
+            }
             stopSelf()
             return
         }
         startForegroundWithNotification(cfg)
         val rep = AprsReporter(
             configProvider = { AprsStore.loadConfig(this) },
-            positionProvider = { lastKnownPosition() },
+            positionProvider = { stationPosition() },
             onState = { lastState = it },
             onReport = { report ->
+                AprsStore.saveLastReport(this, report.ok, report.detail)
                 updateNotification(cfg)
-                // 手动上报/失败时给即时反馈(前台可见)
-                if (report.timestamp > System.currentTimeMillis() - 60_000L) {
-                    val msg = if (report.ok) {
-                        getString(R.string.aprs_toast_ok)
-                    } else {
-                        getString(R.string.aprs_toast_fail, report.detail)
-                    }
-                    runCatching { Toast.makeText(this, msg, Toast.LENGTH_LONG).show() }
+                // 上报结果必达:成功 Toast 短显,失败 Toast 长显+原因
+                val msg = if (report.ok) {
+                    getString(R.string.aprs_toast_ok)
+                } else {
+                    getString(R.string.aprs_toast_fail, report.detail)
+                }
+                runCatching {
+                    Toast.makeText(this, msg,
+                        if (report.ok) Toast.LENGTH_SHORT else Toast.LENGTH_LONG).show()
                 }
             }
         )
@@ -134,8 +146,17 @@ class AprsForegroundService : Service() {
         nm.notify(NOTIF_ID, buildNotification(cfg))
     }
 
-    /** 取最近已知位置(APRSdroid PeriodicGPS 同思路,无权限时返回 null) */
-    private fun lastKnownPosition(): Pair<Double, Double>? {
+    /** 上报位置:优先用设置里的站位(用户拍板);站位无效时实时 GPS 兜底 */
+    private fun stationPosition(): Pair<Double, Double>? {
+        // ① 站位(设置页设置的位置)
+        val station = runCatching {
+            val container = (application as MainApplication).getMainContainer()
+            container.settingsRepo.stationPosition.value
+        }.getOrNull()
+        if (station != null && (station.latitude != 0.0 || station.longitude != 0.0)) {
+            return Pair(station.latitude, station.longitude)
+        }
+        // ② 兜底:实时 GPS 最后位置
         return runCatching {
             val lm = getSystemService(Context.LOCATION_SERVICE) as android.location.LocationManager
             val providers = listOf(

core/data/src/main/java/com/rtbishop/look4sat/core/data/aprs/AprsIsClient.kt

@@ -59,13 +59,33 @@ class AprsIsClient(
         }
     }
 
-    /** 发送一个 APRS 包(一行) */
-    fun sendPacket(packetLine: String): Boolean {
+    /**
+     * 发送一个 APRS 包(一行)并尝试读服务器确认。
+     * 返回 null=发送失败;Pair(ok, detail)=发送结果(服务器错误原文在 detail)
+     */
+    fun sendPacket(packetLine: String): Pair<Boolean, String>? {
         synchronized(lock) {
-            val w = writer ?: return false
+            val w = writer ?: return null
             w.println(packetLine)
-            return !w.checkError()
+            if (w.checkError()) return Pair(false, "write failed")
         }
+        // 尝试读服务器响应(短超时 3s;APRS-IS 对格式错误会回错误行)
+        return runCatching {
+            val s = socket ?: return@runCatching Pair(true, "OK")
+            val oldTimeout = s.soTimeout
+            s.soTimeout = 3000
+            try {
+                val resp = reader?.readLine()
+                if (resp != null && (resp.contains("Invalid", ignoreCase = true) ||
+                        resp.contains("error", ignoreCase = true))) {
+                    Pair(false, resp.trim())
+                } else {
+                    Pair(true, if (resp.isNullOrBlank()) "OK" else resp.trim())
+                }
+            } finally {
+                s.soTimeout = oldTimeout
+            }
+        }.getOrElse { Pair(true, "OK") }
     }
 
     /** 读一行(服务器响应,超时抛异常) */

core/data/src/main/java/com/rtbishop/look4sat/core/data/aprs/AprsReporter.kt

@@ -99,9 +99,10 @@ class AprsReporter(
 
             val pos = positionProvider()
             val packetLine = buildPositionPacket(cfg, pos?.first, pos?.second)
-            val ok = c.sendPacket(packetLine)
-            onReport(AprsReport(System.currentTimeMillis(), packetLine, ok,
-                if (ok) "OK" else "send failed"))
+            val result = c.sendPacket(packetLine)
+            val ok = result?.first == true
+            val detail = result?.second ?: "no connection"
+            onReport(AprsReport(System.currentTimeMillis(), packetLine, ok, detail))
             if (ok) onState(AprsState.Connected) else onState(AprsState.Error)
         } catch (e: Exception) {
             runCatching { client?.disconnect() }

core/data/src/main/java/com/rtbishop/look4sat/core/data/aprs/AprsStore.kt

@@ -24,6 +24,9 @@ object AprsStore {
     private const val KEY_STATUS = "status"
     private const val KEY_SYMBOL_TABLE = "symbol_table"
     private const val KEY_SYMBOL_CODE = "symbol_code"
+    private const val KEY_LAST_TIME = "last_report_time"
+    private const val KEY_LAST_OK = "last_report_ok"
+    private const val KEY_LAST_DETAIL = "last_report_detail"
 
     /** 读取配置(填入即保存,无需每次打开重填) */
     fun loadConfig(context: Context): AprsConfig {
@@ -42,6 +45,26 @@ object AprsStore {
         )
     }
 
+    /** 上次上报结果(供设置卡片显示) */
+    data class LastReport(val time: Long = 0L, val ok: Boolean = false, val detail: String = "")
+
+    fun loadLastReport(context: Context): LastReport {
+        val p = context.getSharedPreferences(PREFS, Context.MODE_PRIVATE)
+        return LastReport(
+            time = p.getLong(KEY_LAST_TIME, 0L),
+            ok = p.getBoolean(KEY_LAST_OK, false),
+            detail = p.getString(KEY_LAST_DETAIL, "") ?: ""
+        )
+    }
+
+    fun saveLastReport(context: Context, ok: Boolean, detail: String) {
+        context.getSharedPreferences(PREFS, Context.MODE_PRIVATE).edit()
+            .putLong(KEY_LAST_TIME, System.currentTimeMillis())
+            .putBoolean(KEY_LAST_OK, ok)
+            .putString(KEY_LAST_DETAIL, detail)
+            .apply()
+    }
+
     /** 保存配置 */
     fun saveConfig(context: Context, cfg: AprsConfig) {
         context.getSharedPreferences(PREFS, Context.MODE_PRIVATE).edit()

core/presentation/src/main/res/values-id/strings.xml

@@ -38,6 +38,10 @@
     <string name="prefs_aprs_calc_passcode">Hitung kode sandi</string>
     <string name="aprs_toast_ok">APRS: laporan terkirim</string>
     <string name="aprs_toast_fail">APRS: laporan gagal - %1$s</string>
+    <string name="aprs_toast_not_configured">APRS belum dikonfigurasi - isi panggilan dulu</string>
+    <string name="prefs_aprs_last_report">Laporan terakhir: %1$s %2$s</string>
+    <string name="prefs_aprs_last_ok">OK</string>
+    <string name="prefs_aprs_last_fail">gagal - %1$s</string>
     <string name="nav_more">Lainnya</string>
     <string name="nav_log">Log</string>
     <string name="nav_amsat">AMSAT</string>

core/presentation/src/main/res/values-in/strings.xml

@@ -38,6 +38,10 @@
     <string name="prefs_aprs_calc_passcode">Hitung kode sandi</string>
     <string name="aprs_toast_ok">APRS: laporan terkirim</string>
     <string name="aprs_toast_fail">APRS: laporan gagal - %1$s</string>
+    <string name="aprs_toast_not_configured">APRS belum dikonfigurasi - isi panggilan dulu</string>
+    <string name="prefs_aprs_last_report">Laporan terakhir: %1$s %2$s</string>
+    <string name="prefs_aprs_last_ok">OK</string>
+    <string name="prefs_aprs_last_fail">gagal - %1$s</string>
     <string name="nav_more">Lainnya</string>
     <string name="nav_log">Log</string>
     <string name="nav_amsat">AMSAT</string>

core/presentation/src/main/res/values-tr/strings.xml

@@ -39,6 +39,10 @@
     <string name="prefs_aprs_calc_passcode">Parolayı hesapla</string>
     <string name="aprs_toast_ok">APRS: rapor gönderildi</string>
     <string name="aprs_toast_fail">APRS: rapor başarısız - %1$s</string>
+    <string name="aprs_toast_not_configured">APRS yapılandırılmadı - önce çağrı girin</string>
+    <string name="prefs_aprs_last_report">Son rapor: %1$s %2$s</string>
+    <string name="prefs_aprs_last_ok">OK</string>
+    <string name="prefs_aprs_last_fail">başarısız - %1$s</string>
     <string name="nav_more">Daha Fazla</string>
     <string name="nav_log">Günlük</string>
     <string name="nav_amsat">AMSAT</string>

core/presentation/src/main/res/values-zh/strings.xml

@@ -40,6 +40,10 @@
     <string name="prefs_aprs_calc_passcode">计算验证码</string>
     <string name="aprs_toast_ok">APRS: 上报成功</string>
     <string name="aprs_toast_fail">APRS: 上报失败 - %1$s</string>
+    <string name="aprs_toast_not_configured">APRS 未配置,请先填呼号</string>
+    <string name="prefs_aprs_last_report">上次上报: %1$s %2$s</string>
+    <string name="prefs_aprs_last_ok">成功</string>
+    <string name="prefs_aprs_last_fail">失败 - %1$s</string>
     <string name="nav_more">更多</string>
     <string name="nav_log">日志</string>
     <string name="nav_amsat">AMSAT</string>

core/presentation/src/main/res/values/strings.xml

@@ -41,6 +41,10 @@
     <string name="prefs_aprs_calc_passcode">Compute passcode</string>
     <string name="aprs_toast_ok">APRS: report sent OK</string>
     <string name="aprs_toast_fail">APRS: report failed - %1$s</string>
+    <string name="aprs_toast_not_configured">APRS not configured - set callsign first</string>
+    <string name="prefs_aprs_last_report">Last report: %1$s %2$s</string>
+    <string name="prefs_aprs_last_ok">OK</string>
+    <string name="prefs_aprs_last_fail">failed - %1$s</string>
     <string name="nav_more">More</string>
     <string name="nav_log">Log</string>
     <string name="nav_amsat">AMSAT</string>

feature/settings/src/main/java/com/rtbishop/look4sat/feature/settings/AprsCard.kt

@@ -44,6 +44,8 @@ fun AprsCard() {
     val context = LocalContext.current
     var config by remember { mutableStateOf(AprsStore.loadConfig(context)) }
     var showDialog by remember { mutableStateOf(false) }
+    var lastReport by remember { mutableStateOf(AprsStore.loadLastReport(context)) }
+    var reportPing by remember { mutableStateOf(0) }
     val notifPermissionLauncher = rememberLauncherForActivityResult(
         ActivityResultContracts.RequestPermission()
     ) { }
@@ -98,6 +100,23 @@ fun AprsCard() {
                 fontSize = 13.sp,
                 color = MaterialTheme.colorScheme.onSurfaceVariant
             )
+            // 上次上报状态行
+            val lr = lastReport
+            if (lr.time > 0L) {
+                val timeStr = java.text.SimpleDateFormat("HH:mm:ss", java.util.Locale.getDefault())
+                    .format(java.util.Date(lr.time))
+                Text(
+                    text = stringResource(
+                        id = R.string.prefs_aprs_last_report,
+                        timeStr,
+                        if (lr.ok) stringResource(R.string.prefs_aprs_last_ok)
+                        else stringResource(R.string.prefs_aprs_last_fail, lr.detail)
+                    ),
+                    fontSize = 13.sp,
+                    color = if (lr.ok) MaterialTheme.colorScheme.primary
+                    else MaterialTheme.colorScheme.error
+                )
+            }
             // 手动上报按钮
             CardButton(
                 onClick = {
@@ -105,12 +124,20 @@ fun AprsCard() {
                         .setClassName(context.packageName, AprsStore.SERVICE_CLASS)
                         .setAction(AprsStore.ACTION_REPORT_NOW)
                     context.startForegroundService(intent)
+                    reportPing++
                 },
                 text = stringResource(id = R.string.prefs_aprs_report_now),
                 modifier = Modifier.fillMaxWidth()
             )
         }
     }
+    // 上报后延迟刷新状态行(等结果落盘)
+    androidx.compose.runtime.LaunchedEffect(reportPing) {
+        if (reportPing > 0) {
+            kotlinx.coroutines.delay(6000)
+            lastReport = AprsStore.loadLastReport(context)
+        }
+    }
     if (showDialog) {
         AprsSettingsDialog(
             config = config,