Node / meshtastic / Meshtastic-Android / files / core / domain / src / commonMain / kotlin / org / meshtastic / core / domain / usecase / settings / ExportDataUseCase.kt

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T8b949e/*

* Copyright (c) 2026 Meshtastic LLC

*

* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation, either version 3 of the License, or

* (at your option) any later version.

*

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details.

*

* You should have received a copy of the GNU General Public License

* along with this program. If not, see <https://www.gnu.org/licenses/>.

*/

Tff7b72package T7ee787org.meshtastic.core.domain.usecase.settings

Tff7b72import T7ee787kotlinx.coroutines.flow.first

Tff7b72import T7ee787kotlinx.datetime.TimeZone

Tff7b72import T7ee787kotlinx.datetime.toLocalDateTime

Tff7b72import T7ee787okio.BufferedSink

Tff7b72import T7ee787org.koin.core.annotation.Single

Tff7b72import T7ee787org.meshtastic.core.model.Position

Tff7b72import T7ee787org.meshtastic.core.model.util.positionToMeter

Tff7b72import T7ee787org.meshtastic.core.model.util.snrOrNull

Tff7b72import T7ee787org.meshtastic.core.repository.MeshLogRepository

Tff7b72import T7ee787org.meshtastic.core.repository.NodeRepository

Tff7b72import T7ee787org.meshtastic.proto.PortNum

Tff7b72import T7ee787kotlin.math.roundToInt

Tff7b72import T7ee787kotlin.time.Instant

Tff7b72import T7ee787org.meshtastic.proto.Position Tff7b72as Te6edf3ProtoPosition

T8b949e/** Use case for exporting persisted packet data to a CSV format. */

Tf0883e@Single

Tff7b72open Tff7b72class T56d364ExportDataUseCase

Tff7b72constructorTb4b4b4(

Tff7b72private Tff7b72val Te6edf3nodeRepositoryTb4b4b4: Te6edf3NodeRepositoryTb4b4b4,

Tff7b72private Tff7b72val Te6edf3meshLogRepositoryTb4b4b4: Te6edf3MeshLogRepositoryTb4b4b4,

Tb4b4b4) Tb4b4b4{

Tff7b72companion Tff7b72object Tb4b4b4{

Tff7b72private Tff7b72const Tff7b72val Te6edf3BYTE_MASK Tff7b72= T79c0ff0Te6edf3xFF

Tff7b72private Tff7b72const Tff7b72val Te6edf3HEX_PAD_WIDTH Tff7b72= T79c0ff2

Tff7b72private Tff7b72const Tff7b72val Te6edf3HEX_RADIX Tff7b72= T79c0ff1T79c0ff6

Tb4b4b4}

T8b949e/**

* Writes all persisted packet data to the provided [BufferedSink].

*

* @param sink The sink to output the CSV data to.

* @param myNodeNum The node number of the current device.

* @param filterPortnum If provided, only packets with this port number will be exported.

*/

Tf0883e@SuppressTb4b4b4(Ta5d6ff"Ta5d6ffdetekt:CyclomaticComplexMethodTa5d6ff"Tb4b4b4, Ta5d6ff"Ta5d6ffdetekt:LongMethodTa5d6ff"Tb4b4b4, Ta5d6ff"Ta5d6ffdetekt:NestedBlockDepthTa5d6ff"Tb4b4b4)

Tff7b72suspend Tff7b72operator Tff7b72fun Td2a8ffinvokeTb4b4b4(Te6edf3sinkTb4b4b4: Te6edf3BufferedSinkTb4b4b4, Te6edf3myNodeNumTb4b4b4: Tffa657IntTb4b4b4, Te6edf3filterPortnumTb4b4b4: Tffa657Int? Tff7b72= Tff7b72nullTb4b4b4) Tb4b4b4{

Tff7b72val Te6edf3nodes Tff7b72= Te6edf3nodeRepositoryTb4b4b4.Te6edf3nodeDBbyNumTb4b4b4.Te6edf3value

Tff7b72val Te6edf3positionToPosTb4b4b4: Tb4b4b4(Te6edf3ProtoPosition?Tb4b4b4) Tff7b72-Tff7b72> Te6edf3Position? Tff7b72= Tb4b4b4{ Te6edf3meshPosition Tff7b72-Tff7b72>

Te6edf3meshPositionTff7b72?.Te6edf3let Tb4b4b4{ Te6edf3PositionTb4b4b4(Tffa657itTb4b4b4) Tb4b4b4}Tff7b72?.Te6edf3takeIf Tb4b4b4{ Tffa657itTb4b4b4.Te6edf3isValidTb4b4b4(Tb4b4b4) Tb4b4b4}

Tb4b4b4}

Tff7b72val Te6edf3nodePositions Tff7b72= Te6edf3mutableMapOfTff7b72<Tffa657IntTb4b4b4, Te6edf3ProtoPosition?Tff7b72>Tb4b4b4(Tb4b4b4)

Tf0883e@SuppressTb4b4b4(Ta5d6ff"Ta5d6ffMaxLineLengthTa5d6ff"Tb4b4b4)

Te6edf3sinkTb4b4b4.Te6edf3writeUtf8Tb4b4b4(

Ta5d6ff"Ta5d6ff\"Ta5d6ffdateTa5d6ff\"Ta5d6ff,Ta5d6ff\"Ta5d6fftimeTa5d6ff\"Ta5d6ff,Ta5d6ff\"Ta5d6fffromTa5d6ff\"Ta5d6ff,Ta5d6ff\"Ta5d6ffsender nameTa5d6ff\"Ta5d6ff,Ta5d6ff\"Ta5d6ffsender latTa5d6ff\"Ta5d6ff,Ta5d6ff\"Ta5d6ffsender longTa5d6ff\"Ta5d6ff,Ta5d6ff\"Ta5d6ffrx latTa5d6ff\"Ta5d6ff,Ta5d6ff\"Ta5d6ffrx longTa5d6ff\"Ta5d6ff,Ta5d6ff\"Ta5d6ffrx elevationTa5d6ff\"Ta5d6ff,Ta5d6ff\"Ta5d6ffrx snrTa5d6ff\"Ta5d6ff,Ta5d6ff\"Ta5d6ffdistance(m)Ta5d6ff\"Ta5d6ff,Ta5d6ff\"Ta5d6ffhop limitTa5d6ff\"Ta5d6ff,Ta5d6ff\"Ta5d6ffhop startTa5d6ff\"Ta5d6ff,Ta5d6ff\"Ta5d6ffrelay nodeTa5d6ff\"Ta5d6ff,Ta5d6ff\"Ta5d6ffpayloadTa5d6ff\"Ta5d6ff\Ta5d6ffnTa5d6ff"Tb4b4b4,

Tb4b4b4)

Te6edf3meshLogRepositoryTb4b4b4.Te6edf3getAllLogsInReceiveOrderTb4b4b4(Tffa657IntTb4b4b4.Te6edf3MAX_VALUETb4b4b4)Tb4b4b4.Te6edf3firstTb4b4b4(Tb4b4b4)Tb4b4b4.Te6edf3forEach Tb4b4b4{ Te6edf3packet Tff7b72-Tff7b72>

Te6edf3packetTb4b4b4.Te6edf3nodeInfoTff7b72?.Te6edf3let Tb4b4b4{ Te6edf3nodeInfo Tff7b72-Tff7b72>

Te6edf3positionToPosTb4b4b4.Te6edf3invokeTb4b4b4(Te6edf3nodeInfoTb4b4b4.Te6edf3positionTb4b4b4)Tff7b72?.Te6edf3let Tb4b4b4{ Te6edf3nodePositionsTff7b72[Te6edf3nodeInfoTb4b4b4.Te6edf3numTff7b72] Tff7b72= Te6edf3nodeInfoTb4b4b4.Te6edf3position Tb4b4b4}

Tb4b4b4}

Te6edf3packetTb4b4b4.Te6edf3meshPacketTff7b72?.Te6edf3let Tb4b4b4{ Te6edf3proto Tff7b72-Tff7b72>

Te6edf3packetTb4b4b4.Te6edf3positionTff7b72?.Te6edf3let Tb4b4b4{ Te6edf3position Tff7b72-Tff7b72>

Te6edf3positionToPosTb4b4b4.Te6edf3invokeTb4b4b4(Te6edf3positionTb4b4b4)Tff7b72?.Te6edf3let Tb4b4b4{

Te6edf3nodePositionsTff7b72[Te6edf3protoTb4b4b4.Te6edf3fromTb4b4b4.Te6edf3takeIf Tb4b4b4{ Tffa657it Tff7b72!Tff7b72= T79c0ff0 Tb4b4b4} Tff7b72?: Te6edf3myNodeNumTff7b72] Tff7b72= Te6edf3position

Tb4b4b4}

Tb4b4b4}

T8b949e// Rows are limited to receptions that carried an SNR measurement. Gating on `snrOrNull()` rather than

T8b949e// `rx_snr != 0f` keeps a genuine 0 dB reading in the export.

Tff7b72val Te6edf3rxSnrOrNull Tff7b72= Te6edf3protoTb4b4b4.Te6edf3snrOrNullTb4b4b4(Tb4b4b4)

Tff7b72if Tb4b4b4(

Tb4b4b4(Te6edf3filterPortnum Tff7b72=Tff7b72= Tff7b72null Tff7b72|Tff7b72| Tb4b4b4(Te6edf3protoTb4b4b4.Te6edf3decodedTff7b72?.Te6edf3portnumTff7b72?.Te6edf3value Tff7b72?: T79c0ff0Tb4b4b4) Tff7b72=Tff7b72= Te6edf3filterPortnumTb4b4b4) Tff7b72&Tff7b72&

Te6edf3rxSnrOrNull Tff7b72!Tff7b72= Tff7b72null

Tb4b4b4) Tb4b4b4{

Tff7b72val Te6edf3timeZone Tff7b72= Te6edf3TimeZoneTb4b4b4.Te6edf3currentSystemDefaultTb4b4b4(Tb4b4b4)

Tff7b72val Te6edf3rxDateTimeObj Tff7b72= Te6edf3InstantTb4b4b4.Te6edf3fromEpochMillisecondsTb4b4b4(Te6edf3packetTb4b4b4.Te6edf3received_dateTb4b4b4)Tb4b4b4.Te6edf3toLocalDateTimeTb4b4b4(Te6edf3timeZoneTb4b4b4)

Tff7b72val Te6edf3timeString Tff7b72= Te6edf3rxDateTimeObjTb4b4b4.Te6edf3timeTb4b4b4.Te6edf3toStringTb4b4b4(Tb4b4b4)Tb4b4b4.Te6edf3substringBeforeTb4b4b4(Ta5d6ff'.'Tb4b4b4)

Tff7b72val Te6edf3rxDateTime Tff7b72= Ta5d6ff"Ta5d6ff\"Tffd700${Te6edf3rxDateTimeObjTb4b4b4.Te6edf3dateTffd700}Ta5d6ff\"Ta5d6ff,Ta5d6ff\"Tffd700$Te6edf3timeStringTa5d6ff\"Ta5d6ff"

Tff7b72val Te6edf3rxFrom Tff7b72= Te6edf3protoTb4b4b4.Te6edf3fromTb4b4b4.Te6edf3toUIntTb4b4b4(Tb4b4b4)

Tff7b72val Te6edf3senderName Tff7b72= Te6edf3nodesTff7b72[Te6edf3protoTb4b4b4.Te6edf3fromTff7b72]Tff7b72?.Te6edf3userTff7b72?.Te6edf3long_name Tff7b72?: Ta5d6ff"Ta5d6ff"

Tff7b72val Te6edf3senderPosition Tff7b72= Te6edf3nodePositionsTff7b72[Te6edf3protoTb4b4b4.Te6edf3fromTff7b72]

Tff7b72val Te6edf3senderPos Tff7b72= Te6edf3positionToPosTb4b4b4.Te6edf3invokeTb4b4b4(Te6edf3senderPositionTb4b4b4)

Tff7b72val Te6edf3senderLat Tff7b72= Te6edf3senderPosTff7b72?.Te6edf3latitude Tff7b72?: Ta5d6ff"Ta5d6ff"

Tff7b72val Te6edf3senderLong Tff7b72= Te6edf3senderPosTff7b72?.Te6edf3longitude Tff7b72?: Ta5d6ff"Ta5d6ff"

Tff7b72val Te6edf3rxPosition Tff7b72= Te6edf3nodePositionsTff7b72[Te6edf3myNodeNumTff7b72]

Tff7b72val Te6edf3rxPos Tff7b72= Te6edf3positionToPosTb4b4b4.Te6edf3invokeTb4b4b4(Te6edf3rxPositionTb4b4b4)

Tff7b72val Te6edf3rxLat Tff7b72= Te6edf3rxPosTff7b72?.Te6edf3latitude Tff7b72?: Ta5d6ff"Ta5d6ff"

Tff7b72val Te6edf3rxLong Tff7b72= Te6edf3rxPosTff7b72?.Te6edf3longitude Tff7b72?: Ta5d6ff"Ta5d6ff"

Tff7b72val Te6edf3rxAlt Tff7b72= Te6edf3rxPosTff7b72?.Te6edf3altitude Tff7b72?: Ta5d6ff"Ta5d6ff"

Tff7b72val Te6edf3rxSnr Tff7b72= Te6edf3rxSnrOrNull

Tff7b72val Te6edf3dist Tff7b72=

Tff7b72if Tb4b4b4(Te6edf3senderPos Tff7b72=Tff7b72= Tff7b72null Tff7b72|Tff7b72| Te6edf3rxPos Tff7b72=Tff7b72= Tff7b72nullTb4b4b4) Tb4b4b4{

Ta5d6ff"Ta5d6ff"

Tb4b4b4} Tff7b72else Tb4b4b4{

Te6edf3positionToMeterTb4b4b4(Te6edf3PositionTb4b4b4(Te6edf3rxPositionTff7b72!!Tb4b4b4)Tb4b4b4, Te6edf3PositionTb4b4b4(Te6edf3senderPositionTff7b72!!Tb4b4b4)Tb4b4b4)Tb4b4b4.Te6edf3roundToIntTb4b4b4(Tb4b4b4)Tb4b4b4.Te6edf3toStringTb4b4b4(Tb4b4b4)

Tb4b4b4}

Tff7b72val Te6edf3hopLimit Tff7b72= Te6edf3protoTb4b4b4.Te6edf3hop_limit

T8b949e// hop_start lets a reader derive hops-away (hop_start - hop_limit) alongside hop_limit.

Tff7b72val Te6edf3hopStart Tff7b72= Te6edf3protoTb4b4b4.Te6edf3hop_start

T8b949e// relay_node carries only the last byte of the relaying node's NodeNum (0 means unset).

T8b949e// Emit it as a hex byte so it can be matched against the tail of a node id (e.g. !a1b2c3d4 ->

T8b949e// "d4").

Tff7b72val Te6edf3relayNode Tff7b72=

Te6edf3protoTb4b4b4.Te6edf3relay_node

Tb4b4b4.Te6edf3takeIf Tb4b4b4{ Tffa657it Tff7b72!Tff7b72= T79c0ff0 Tb4b4b4}

Tff7b72?.Te6edf3let Tb4b4b4{ Tb4b4b4(Tffa657it Te6edf3and Te6edf3BYTE_MASKTb4b4b4)Tb4b4b4.Te6edf3toStringTb4b4b4(Te6edf3HEX_RADIXTb4b4b4)Tb4b4b4.Te6edf3padStartTb4b4b4(Te6edf3HEX_PAD_WIDTHTb4b4b4, Ta5d6ff'0'Tb4b4b4) Tb4b4b4} Tff7b72?: Ta5d6ff"Ta5d6ff"

Tff7b72val Te6edf3decoded Tff7b72= Te6edf3protoTb4b4b4.Te6edf3decoded

Tff7b72val Te6edf3encrypted Tff7b72= Te6edf3protoTb4b4b4.Te6edf3encrypted

Tff7b72val Te6edf3payload Tff7b72=

Tff7b72when Tb4b4b4{

Tb4b4b4(Te6edf3decodedTff7b72?.Te6edf3portnumTff7b72?.Te6edf3value Tff7b72?: T79c0ff0Tb4b4b4) Tff7b72!in

Te6edf3setOfTb4b4b4(Te6edf3PortNumTb4b4b4.Te6edf3TEXT_MESSAGE_APPTb4b4b4.Te6edf3valueTb4b4b4, Te6edf3PortNumTb4b4b4.Te6edf3RANGE_TEST_APPTb4b4b4.Te6edf3valueTb4b4b4) Tff7b72-Tff7b72>

Ta5d6ff"Ta5d6ff<Tffd700${Te6edf3decodedTff7b72?.Te6edf3portnumTffd700}Ta5d6ff>Ta5d6ff"

Te6edf3decoded Tff7b72!Tff7b72= Tff7b72null Tff7b72-Tff7b72> Te6edf3decodedTb4b4b4.Te6edf3payloadTb4b4b4.Te6edf3utf8Tb4b4b4(Tb4b4b4)Tb4b4b4.Te6edf3replaceTb4b4b4(Ta5d6ff"Ta5d6ff\"Ta5d6ff"Tb4b4b4, Ta5d6ff"Ta5d6ff\"Ta5d6ff\"Ta5d6ff"Tb4b4b4)

Te6edf3encrypted Tff7b72!Tff7b72= Tff7b72null Tff7b72-Tff7b72> Ta5d6ff"Tffd700${Te6edf3encryptedTb4b4b4.Te6edf3sizeTffd700}Ta5d6ff encrypted bytesTa5d6ff"

Tff7b72else Tff7b72-Tff7b72> Ta5d6ff"Ta5d6ff"

Tb4b4b4}

Tf0883e@SuppressTb4b4b4(Ta5d6ff"Ta5d6ffMaxLineLengthTa5d6ff"Tb4b4b4)

Te6edf3sinkTb4b4b4.Te6edf3writeUtf8Tb4b4b4(

Ta5d6ff"Tffd700$Te6edf3rxDateTimeTa5d6ff,Ta5d6ff\"Tffd700$Te6edf3rxFromTa5d6ff\"Ta5d6ff,Ta5d6ff\"Tffd700$Te6edf3senderNameTa5d6ff\"Ta5d6ff,Ta5d6ff\"Tffd700$Te6edf3senderLatTa5d6ff\"Ta5d6ff,Ta5d6ff\"Tffd700$Te6edf3senderLongTa5d6ff\"Ta5d6ff,Ta5d6ff\"Tffd700$Te6edf3rxLatTa5d6ff\"Ta5d6ff,Ta5d6ff\"Tffd700$Te6edf3rxLongTa5d6ff\"Ta5d6ff,Ta5d6ff\"Tffd700$Te6edf3rxAltTa5d6ff\"Ta5d6ff,Ta5d6ff\"Tffd700$Te6edf3rxSnrTa5d6ff\"Ta5d6ff,Ta5d6ff\"Tffd700$Te6edf3distTa5d6ff\"Ta5d6ff,Ta5d6ff\"Tffd700$Te6edf3hopLimitTa5d6ff\"Ta5d6ff,Ta5d6ff\"Tffd700$Te6edf3hopStartTa5d6ff\"Ta5d6ff,Ta5d6ff\"Tffd700$Te6edf3relayNodeTa5d6ff\"Ta5d6ff,Ta5d6ff\"Tffd700$Te6edf3payloadTa5d6ff\"Ta5d6ff\Ta5d6ffnTa5d6ff"Tb4b4b4,

Tb4b4b4)

Tb4b4b4}

Tb4b4b4}

Tb4b4b4}

Te6edf3sinkTb4b4b4.Te6edf3flushTb4b4b4(Tb4b4b4)

Tb4b4b4}

Tb4b4b4}