feat: amd gpu (#831)

lib/data/model/app/shell_func.dart

@@ -16,6 +16,12 @@ enum ShellFunc {
   /// The suffix `\t` is for formatting
   static const cmdDivider = '\necho $seperator\n\t';
 
+  /// Cached Linux status commands string
+  static final _linuxStatusCmds = StatusCmdType.values.map((e) => e.cmd).join(cmdDivider);
+
+  /// Cached BSD status commands string
+  static final _bsdStatusCmds = BSDStatusCmdType.values.map((e) => e.cmd).join(cmdDivider);
+
   /// srvboxm -> ServerBox Mobile
   static const scriptFile = 'srvboxm_v${BuildData.script}.sh';
   static const scriptDirHome = '~/.config/server_box';
@@ -28,13 +34,10 @@ enum ShellFunc {
   /// Default is [scriptDirTmp]/[scriptFile], if this path is not accessible,
   /// it will be changed to [scriptDirHome]/[scriptFile].
   static String getScriptDir(String id) {
-    final customScriptDir = ServerProvider.pick(
+    final customScriptDir = ServerProvider.pick(id: id)?.value.spi.custom?.scriptDir;
-      id: id,
-    )?.value.spi.custom?.scriptDir;
     if (customScriptDir != null) return customScriptDir;
-    return _scriptDirMap.putIfAbsent(id, () {
+    _scriptDirMap[id] ??= scriptDirTmp;
-      return scriptDirTmp;
+    return _scriptDirMap[id]!;
-    });
   }
 
   static void switchScriptDir(String id) => switch (_scriptDirMap[id]) {
@@ -68,43 +71,24 @@ chmod 755 $scriptPath
 
   String exec(String id) => 'sh ${getScriptPath(id)} -$flag';
 
-  String get name {
+  String get name => switch (this) {
-    switch (this) {
+    ShellFunc.status => 'status',
-      case ShellFunc.status:
+    ShellFunc.process => 'process',
-        return 'status';
+    ShellFunc.shutdown => 'ShutDown',
-      // case ShellFunc.docker:
+    ShellFunc.reboot => 'Reboot',
-      //   // `dockeR` -> avoid conflict with `docker` command
+    ShellFunc.suspend => 'Suspend',
-      //   return 'dockeR';
+  };
-      case ShellFunc.process:
-        return 'process';
-      case ShellFunc.shutdown:
-        return 'ShutDown';
-      case ShellFunc.reboot:
-        return 'Reboot';
-      case ShellFunc.suspend:
-        return 'Suspend';
-    }
-  }
 
-  String get _cmd {
+  String get _cmd => switch (this) {
-    switch (this) {
+    ShellFunc.status =>
-      case ShellFunc.status:
+      '''
-        return '''
 if [ "\$macSign" = "" ] && [ "\$bsdSign" = "" ]; then
-\t${StatusCmdType.values.map((e) => e.cmd).join(cmdDivider)}
+\t$_linuxStatusCmds
 else
-\t${BSDStatusCmdType.values.map((e) => e.cmd).join(cmdDivider)}
+\t$_bsdStatusCmds
-fi''';
+fi''',
-      //       case ShellFunc.docker:
+    ShellFunc.process =>
-      //         return '''
+      '''
-      // result=\$(docker version 2>&1 | grep "permission denied")
-      // if [ "\$result" != "" ]; then
-      // \t${_dockerCmds.join(_cmdDivider)}
-      // else
-      // \t${_dockerCmds.map((e) => "sudo -S $e").join(_cmdDivider)}
-      // fi''';
-      case ShellFunc.process:
-        return '''
 if [ "\$macSign" = "" ] && [ "\$bsdSign" = "" ]; then
 \tif [ "\$isBusybox" != "" ]; then
 \t\tps w
@@ -114,30 +98,29 @@ if [ "\$macSign" = "" ] && [ "\$bsdSign" = "" ]; then
 else
 \tps -ax
 fi
-''';
+''',
-      case ShellFunc.shutdown:
+    ShellFunc.shutdown =>
-        return '''
+      '''
 if [ "\$userId" = "0" ]; then
 \tshutdown -h now
 else
 \tsudo -S shutdown -h now
-fi''';
+fi''',
-      case ShellFunc.reboot:
+    ShellFunc.reboot =>
-        return '''
+      '''
 if [ "\$userId" = "0" ]; then
 \treboot
 else
 \tsudo -S reboot
-fi''';
+fi''',
-      case ShellFunc.suspend:
+    ShellFunc.suspend =>
-        return '''
+      '''
 if [ "\$userId" = "0" ]; then
 \tsystemctl suspend
 else
 \tsudo -S systemctl suspend
-fi''';
+fi''',
-    }
+  };
-  }
 
   static String allScript(Map<String, String>? customCmds) {
     final sb = StringBuffer();
@@ -163,9 +146,7 @@ exec 2>/dev/null
     // Write each func
     for (final func in values) {
       final customCmdsStr = () {
-        if (func == ShellFunc.status &&
+        if (func == ShellFunc.status && customCmds != null && customCmds.isNotEmpty) {
-            customCmds != null &&
-            customCmds.isNotEmpty) {
           return '$cmdDivider\n\t${customCmds.values.join(cmdDivider)}';
         }
         return '';
@@ -212,18 +193,15 @@ enum StatusCmdType {
   cpu._('cat /proc/stat | grep cpu'),
   uptime._('uptime'),
   conn._('cat /proc/net/snmp'),
-  disk._(
+  disk._('lsblk --bytes --json --output FSTYPE,PATH,NAME,KNAME,MOUNTPOINT,FSSIZE,FSUSED,FSAVAIL,FSUSE%,UUID'),
-    'lsblk --bytes --json --output FSTYPE,PATH,NAME,KNAME,MOUNTPOINT,FSSIZE,FSUSED,FSAVAIL,FSUSE%,UUID',
-  ),
   mem._("cat /proc/meminfo | grep -E 'Mem|Swap'"),
   tempType._('cat /sys/class/thermal/thermal_zone*/type'),
   tempVal._('cat /sys/class/thermal/thermal_zone*/temp'),
   host._('cat /etc/hostname'),
   diskio._('cat /proc/diskstats'),
-  battery._(
+  battery._('for f in /sys/class/power_supply/*/uevent; do cat "\$f"; echo; done'),
-    'for f in /sys/class/power_supply/*/uevent; do cat "\$f"; echo; done',
-  ),
   nvidia._('nvidia-smi -q -x'),
+  amd._('if command -v amd-smi >/dev/null 2>&1; then amd-smi list --json && amd-smi metric --json; elif command -v rocm-smi >/dev/null 2>&1; then rocm-smi --json || rocm-smi --showunique --showuse --showtemp --showfan --showclocks --showmemuse --showpower; elif command -v radeontop >/dev/null 2>&1; then timeout 2s radeontop -d - -l 1 | tail -n +2; else echo "No AMD GPU monitoring tools found"; fi'),
   sensors._('sensors'),
   diskSmart._('for d in \$(lsblk -dn -o KNAME); do smartctl -a -j /dev/\$d; echo; done'),
   cpuBrand._('cat /proc/cpuinfo | grep "model name"');
@@ -258,6 +236,8 @@ extension StatusCmdTypeX on StatusCmdType {
     StatusCmdType.host => l10n.host,
     StatusCmdType.uptime => l10n.uptime,
     StatusCmdType.battery => l10n.battery,
+    StatusCmdType.sensors => l10n.sensors,
+    StatusCmdType.disk => l10n.disk,
     final val => val.name,
   };
 }

lib/data/model/server/amd.dart

@@ -0,0 +1,188 @@
+import 'dart:convert';
+
+/// AMD GPU monitoring data structures
+/// Supports both amd-smi and rocm-smi tools
+/// Example JSON output:
+/// [
+///   {
+///     "name": "AMD Radeon RX 7900 XTX",
+///     "device_id": "0",
+///     "temp": 45,
+///     "power": "120W / 355W",
+///     "memory": {
+///       "total": 24576,
+///       "used": 1024,
+///       "unit": "MB",
+///       "processes": [
+///         {
+///           "pid": 2456,
+///           "name": "firefox",
+///           "memory": 512
+///         }
+///       ]
+///     },
+///     "utilization": 75,
+///     "fan_speed": 1200,
+///     "clock_speed": 2400
+///   }
+/// ]
+
+class AmdSmi {
+  static List<AmdSmiItem> fromJson(String raw) {
+    try {
+      final jsonData = json.decode(raw);
+      if (jsonData is! List) return [];
+      
+      return jsonData
+          .map((gpu) => _parseGpuItem(gpu))
+          .where((item) => item != null)
+          .cast<AmdSmiItem>()
+          .toList();
+    } catch (e) {
+      return [];
+    }
+  }
+
+  static AmdSmiItem? _parseGpuItem(Map<String, dynamic> gpu) {
+    try {
+      final name = gpu['name'] ?? gpu['card_model'] ?? gpu['device_name'] ?? 'Unknown AMD GPU';
+      final deviceId = gpu['device_id']?.toString() ?? gpu['gpu_id']?.toString() ?? '0';
+      
+      // Temperature parsing
+      final tempRaw = gpu['temperature'] ?? gpu['temp'] ?? gpu['gpu_temp'];
+      final temp = _parseIntValue(tempRaw);
+      
+      // Power parsing
+      final powerDraw = gpu['power_draw'] ?? gpu['current_power'];
+      final powerCap = gpu['power_cap'] ?? gpu['power_limit'] ?? gpu['max_power'];
+      final power = _formatPower(powerDraw, powerCap);
+      
+      // Memory parsing
+      final memory = _parseMemory(gpu['memory'] ?? gpu['vram'] ?? {});
+      
+      // Utilization parsing
+      final utilization = _parseIntValue(gpu['utilization'] ?? gpu['gpu_util'] ?? gpu['activity']);
+      
+      // Fan speed parsing
+      final fanSpeed = _parseIntValue(gpu['fan_speed'] ?? gpu['fan_rpm']);
+      
+      // Clock speed parsing
+      final clockSpeed = _parseIntValue(gpu['clock_speed'] ?? gpu['gpu_clock'] ?? gpu['sclk']);
+      
+      return AmdSmiItem(
+        deviceId: deviceId,
+        name: name,
+        temp: temp,
+        power: power,
+        memory: memory,
+        utilization: utilization,
+        fanSpeed: fanSpeed,
+        clockSpeed: clockSpeed,
+      );
+    } catch (e) {
+      return null;
+    }
+  }
+
+  static int _parseIntValue(dynamic value) {
+    if (value == null) return 0;
+    if (value is int) return value;
+    if (value is String) {
+      // Remove units and parse (e.g., "45°C" -> 45, "1200 RPM" -> 1200)
+      final cleanValue = value.replaceAll(RegExp(r'[^\d]'), '');
+      return int.tryParse(cleanValue) ?? 0;
+    }
+    return 0;
+  }
+
+  static String _formatPower(dynamic draw, dynamic cap) {
+    final drawValue = _parseIntValue(draw);
+    final capValue = _parseIntValue(cap);
+    
+    if (drawValue == 0 && capValue == 0) return 'N/A';
+    if (capValue == 0) return '${drawValue}W';
+    return '${drawValue}W / ${capValue}W';
+  }
+
+  static AmdSmiMem _parseMemory(Map<String, dynamic> memData) {
+    final total = _parseIntValue(memData['total'] ?? memData['total_memory']);
+    final used = _parseIntValue(memData['used'] ?? memData['used_memory']);
+    final unit = memData['unit']?.toString() ?? 'MB';
+    
+    final processes = <AmdSmiMemProcess>[];
+    final processesData = memData['processes'];
+    if (processesData is List) {
+      for (final proc in processesData) {
+        if (proc is Map<String, dynamic>) {
+          final process = _parseProcess(proc);
+          if (process != null) processes.add(process);
+        }
+      }
+    }
+    
+    return AmdSmiMem(total, used, unit, processes);
+  }
+
+  static AmdSmiMemProcess? _parseProcess(Map<String, dynamic> procData) {
+    final pid = _parseIntValue(procData['pid']);
+    final name = procData['name']?.toString() ?? procData['process_name']?.toString() ?? 'Unknown';
+    final memory = _parseIntValue(procData['memory'] ?? procData['used_memory']);
+    
+    if (pid == 0) return null;
+    return AmdSmiMemProcess(pid, name, memory);
+  }
+}
+
+class AmdSmiItem {
+  final String deviceId;
+  final String name;
+  final int temp;
+  final String power;
+  final AmdSmiMem memory;
+  final int utilization;
+  final int fanSpeed;
+  final int clockSpeed;
+
+  const AmdSmiItem({
+    required this.deviceId,
+    required this.name,
+    required this.temp,
+    required this.power,
+    required this.memory,
+    required this.utilization,
+    required this.fanSpeed,
+    required this.clockSpeed,
+  });
+
+  @override
+  String toString() {
+    return 'AmdSmiItem{name: $name, temp: $temp, power: $power, utilization: $utilization%, memory: $memory}';
+  }
+}
+
+class AmdSmiMem {
+  final int total;
+  final int used;
+  final String unit;
+  final List<AmdSmiMemProcess> processes;
+
+  const AmdSmiMem(this.total, this.used, this.unit, this.processes);
+
+  @override
+  String toString() {
+    return 'AmdSmiMem{total: $total, used: $used, unit: $unit, processes: ${processes.length}}';
+  }
+}
+
+class AmdSmiMemProcess {
+  final int pid;
+  final String name;
+  final int memory;
+
+  const AmdSmiMemProcess(this.pid, this.name, this.memory);
+
+  @override
+  String toString() {
+    return 'AmdSmiMemProcess{pid: $pid, name: $name, memory: $memory}';
+  }
+}

lib/data/model/server/server.dart

@@ -1,6 +1,7 @@
 import 'package:dartssh2/dartssh2.dart';
 import 'package:fl_lib/fl_lib.dart';
 import 'package:server_box/data/model/app/shell_func.dart';
+import 'package:server_box/data/model/server/amd.dart';
 import 'package:server_box/data/model/server/battery.dart';
 import 'package:server_box/data/model/server/conn.dart';
 import 'package:server_box/data/model/server/cpu.dart';
@@ -42,6 +43,7 @@ class ServerStatus {
   DiskIO diskIO;
   List<DiskSmart> diskSmart;
   List<NvidiaSmiItem>? nvidia;
+  List<AmdSmiItem>? amd;
   final List<Battery> batteries = [];
   final Map<StatusCmdType, String> more = {};
   final List<SensorItem> sensors = [];

lib/data/model/server/server_status_update_req.dart

@@ -1,5 +1,6 @@
 import 'package:fl_lib/fl_lib.dart';
 import 'package:server_box/data/model/app/shell_func.dart';
+import 'package:server_box/data/model/server/amd.dart';
 import 'package:server_box/data/model/server/battery.dart';
 import 'package:server_box/data/model/server/conn.dart';
 import 'package:server_box/data/model/server/cpu.dart';
@@ -143,6 +144,12 @@ Future<ServerStatus> _getLinuxStatus(ServerStatusUpdateReq req) async {
     Loggers.app.warning(e, s);
   }
 
+  try {
+    req.ss.amd = AmdSmi.fromJson(StatusCmdType.amd.find(segments));
+  } catch (e, s) {
+    Loggers.app.warning(e, s);
+  }
+
   try {
     final battery = StatusCmdType.battery.find(segments);
 

lib/view/page/server/detail/misc.dart

@@ -1,7 +1,7 @@
 part of 'view.dart';
 
 extension on _ServerDetailPageState {
-  void _onTapGpuItem(NvidiaSmiItem item) {
+  void _onTapNvidiaGpuItem(NvidiaSmiItem item) {
     final processes = item.memory.processes;
     final displayCount = processes.length > 5 ? 5 : processes.length;
     final height = displayCount * 47.0;
@@ -19,6 +19,24 @@ extension on _ServerDetailPageState {
     );
   }
 
+  void _onTapAmdGpuItem(AmdSmiItem item) {
+    final processes = item.memory.processes;
+    final displayCount = processes.length > 5 ? 5 : processes.length;
+    final height = displayCount * 47.0;
+    context.showRoundDialog(
+      title: item.name,
+      child: SizedBox(
+        width: double.maxFinite,
+        height: height,
+        child: ListView.builder(
+          itemCount: processes.length,
+          itemBuilder: (_, idx) => _buildAmdGpuProcessItem(processes[idx]),
+        ),
+      ),
+      actions: Btnx.oks,
+    );
+  }
+
   void _onTapGpuProcessItem(NvidiaSmiMemProcess process) {
     context.showRoundDialog(
       title: '${process.pid}',
@@ -37,6 +55,24 @@ extension on _ServerDetailPageState {
     );
   }
 
+  void _onTapAmdGpuProcessItem(AmdSmiMemProcess process) {
+    context.showRoundDialog(
+      title: '${process.pid}',
+      titleMaxLines: 1,
+      child: Column(
+        mainAxisSize: MainAxisSize.min,
+        crossAxisAlignment: CrossAxisAlignment.start,  
+        children: [
+          UIs.height13,
+          Text('Memory: ${process.memory} ${process.memory > 1024 ? 'MB' : 'KB'}'),
+          UIs.height13,
+          Text('Process: ${process.name}'),
+        ],
+      ),
+      actions: [TextButton(onPressed: () => context.pop(), child: Text(libL10n.close))],
+    );
+  }
+
   void _onTapCustomItem(MapEntry<String, String> cmd) {
     context.showRoundDialog(
       title: cmd.key,

lib/view/page/server/detail/view.dart

@@ -8,6 +8,7 @@ import 'package:server_box/core/extension/context/locale.dart';
 import 'package:server_box/core/route.dart';
 import 'package:server_box/data/model/app/server_detail_card.dart';
 import 'package:server_box/data/model/app/shell_func.dart';
+import 'package:server_box/data/model/server/amd.dart';
 import 'package:server_box/data/model/server/battery.dart';
 import 'package:server_box/data/model/server/cpu.dart';
 import 'package:server_box/data/model/server/disk.dart';
@@ -410,9 +411,23 @@ class _ServerDetailPageState extends State<ServerDetailPage> with SingleTickerPr
 
   Widget? _buildGpuView(Server si) {
     final ss = si.status;
-    if (ss.nvidia == null || ss.nvidia?.isEmpty == true) return null;
+    final hasNvidia = ss.nvidia != null && ss.nvidia!.isNotEmpty;
+    final hasAmd = ss.amd != null && ss.amd!.isNotEmpty;
+
+    if (!hasNvidia && !hasAmd) return null;
+
+    final children = <Widget>[];
+
+    // Add NVIDIA GPUs
+    if (hasNvidia) {
+      children.addAll(ss.nvidia!.map((e) => _buildNvidiaGpuItem(e)));
+    }
+
+    // Add AMD GPUs
+    if (hasAmd) {
+      children.addAll(ss.amd!.map((e) => _buildAmdGpuItem(e)));
+    }
 
-    final children = ss.nvidia?.map((e) => _buildGpuItem(e)).toList() ?? [];
     return ExpandTile(
       title: const Text('GPU'),
       leading: const Icon(Icons.memory, size: 17),
@@ -421,7 +436,7 @@ class _ServerDetailPageState extends State<ServerDetailPage> with SingleTickerPr
     ).cardx;
   }
 
-  Widget _buildGpuItem(NvidiaSmiItem item) {
+  Widget _buildNvidiaGpuItem(NvidiaSmiItem item) {
     final mem = item.memory;
     return ListTile(
       title: Text(item.name, style: UIs.text13),
@@ -441,7 +456,36 @@ class _ServerDetailPageState extends State<ServerDetailPage> with SingleTickerPr
         mainAxisAlignment: MainAxisAlignment.end,
         mainAxisSize: MainAxisSize.min,
         children: [
-          IconButton(onPressed: () => _onTapGpuItem(item), icon: const Icon(Icons.info_outline, size: 17)),
+          IconButton(
+            onPressed: () => _onTapNvidiaGpuItem(item),
+            icon: const Icon(Icons.info_outline, size: 17),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildAmdGpuItem(AmdSmiItem item) {
+    final mem = item.memory;
+    return ListTile(
+      title: Text('${item.name} (AMD)', style: UIs.text13),
+      leading: Text(
+        '${item.utilization}%\n${item.temp} °C',
+        style: UIs.text12Grey,
+        textScaler: _textFactor,
+        textAlign: TextAlign.center,
+      ),
+      subtitle: Text(
+        '${item.power} - FAN ${item.fanSpeed} RPM\n${item.clockSpeed} MHz\n${mem.used} / ${mem.total} ${mem.unit}',
+        style: UIs.text12Grey,
+        textScaler: _textFactor,
+      ),
+      contentPadding: const EdgeInsets.only(left: 17, right: 17),
+      trailing: Row(
+        mainAxisAlignment: MainAxisAlignment.end,
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          IconButton(onPressed: () => _onTapAmdGpuItem(item), icon: const Icon(Icons.info_outline, size: 17)),
         ],
       ),
     );
@@ -468,6 +512,27 @@ class _ServerDetailPageState extends State<ServerDetailPage> with SingleTickerPr
     );
   }
 
+  Widget _buildAmdGpuProcessItem(AmdSmiMemProcess process) {
+    return ListTile(
+      title: Text(
+        process.name,
+        style: UIs.text12,
+        maxLines: 1,
+        overflow: TextOverflow.ellipsis,
+        textScaler: _textFactor,
+      ),
+      subtitle: Text(
+        'PID: ${process.pid} - ${process.memory} MiB',
+        style: UIs.text12Grey,
+        textScaler: _textFactor,
+      ),
+      trailing: InkWell(
+        onTap: () => _onTapAmdGpuProcessItem(process),
+        child: const Icon(Icons.info_outline, size: 17),
+      ),
+    );
+  }
+
   Widget? _buildDiskView(Server si) {
     final ss = si.status;
     final children = <Widget>[];
@@ -646,7 +711,9 @@ class _ServerDetailPageState extends State<ServerDetailPage> with SingleTickerPr
 
     if (smart.model != null) details.add('Model: ${smart.model}');
     if (smart.serial != null) details.add('Serial: ${smart.serial}');
-    if (smart.temperature != null) details.add('Temperature: ${smart.temperature!.toStringAsFixed(1)}°C');
+    if (smart.temperature != null) {
+      details.add('Temperature: ${smart.temperature!.toStringAsFixed(1)}°C');
+    }
 
     if (smart.powerOnHours != null) {
       details.add('Power On: ${smart.powerOnHours} ${libL10n.hour}');

test/amd_smi_test.dart

@@ -0,0 +1,412 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:server_box/data/model/server/amd.dart';
+
+const _amdSmiRaw = '''
+[
+  {
+    "name": "AMD Radeon RX 7900 XTX",
+    "device_id": "0",
+    "temp": 45,
+    "power_draw": 120,
+    "power_cap": 355,
+    "memory": {
+      "total": 24576,
+      "used": 1024,
+      "unit": "MB",
+      "processes": [
+        {
+          "pid": 2456,
+          "name": "firefox",
+          "memory": 512
+        },
+        {
+          "pid": 3784,
+          "name": "blender",
+          "memory": 256
+        }
+      ]
+    },
+    "utilization": 75,
+    "fan_speed": 1200,
+    "clock_speed": 2400
+  },
+  {
+    "name": "AMD Radeon RX 6800 XT",
+    "device_id": "1",
+    "temp": 38,
+    "power_draw": 85,
+    "power_cap": 300,
+    "memory": {
+      "total": 16384,
+      "used": 512,
+      "unit": "MB",
+      "processes": []
+    },
+    "utilization": 25,
+    "fan_speed": 800,
+    "clock_speed": 2100
+  }
+]
+''';
+
+const _amdSmiRocmRaw = '''
+[
+  {
+    "card_model": "AMD Radeon RX 6700 XT",
+    "gpu_id": "card0",
+    "temperature": "42°C",
+    "power_draw": "95",
+    "power_cap": "230",
+    "vram": {
+      "total_memory": 12288,
+      "used_memory": 768,
+      "unit": "MiB",
+      "processes": [
+        {
+          "pid": 1234,
+          "process_name": "game.exe",
+          "used_memory": 512
+        }
+      ]
+    },
+    "gpu_util": "60%",
+    "fan_rpm": "950 RPM",
+    "sclk": "1800MHz"
+  }
+]
+''';
+
+const _amdSmiAlternativeRaw = '''
+[
+  {
+    "device_name": "Radeon RX 580",
+    "gpu_temp": 55,
+    "current_power": 150,
+    "power_limit": 185,
+    "memory": {
+      "total": 8192,
+      "used": 2048,
+      "unit": "MB"
+    },
+    "activity": 90,
+    "fan_speed": 1500,
+    "gpu_clock": 1366
+  }
+]
+''';
+
+const _amdSmiEdgeCasesRaw = '''
+[
+  {
+    "name": "Unknown AMD GPU",
+    "device_id": "",
+    "temp": null,
+    "power": null,
+    "memory": {},
+    "utilization": null,
+    "fan_speed": null,
+    "clock_speed": null
+  },
+  {
+    "name": "AMD Test GPU",
+    "device_id": "test",
+    "temp": "50°C",
+    "power_draw": 100,
+    "memory": {
+      "total": "16384MB",
+      "used": "2048MB"
+    },
+    "utilization": "80%",
+    "fan_speed": "1100 RPM",
+    "clock_speed": "2000 MHz"
+  }
+]
+''';
+
+const _invalidJson = '''
+{
+  "invalid": "not an array"
+}
+''';
+
+const _emptyArray = '[]';
+
+const _malformedJson = '''
+[
+  {
+    "name": "Test GPU"
+    // missing closing brace
+''';
+
+void main() {
+  group('AmdSmi JSON parsing', () {
+    test('parse standard AMD SMI output', () {
+      final gpus = AmdSmi.fromJson(_amdSmiRaw);
+      expect(gpus.length, 2);
+
+      final gpu1 = gpus[0];
+      expect(gpu1.name, 'AMD Radeon RX 7900 XTX');
+      expect(gpu1.deviceId, '0');
+      expect(gpu1.temp, 45);
+      expect(gpu1.power, '120W / 355W');
+      expect(gpu1.memory.total, 24576);
+      expect(gpu1.memory.used, 1024);
+      expect(gpu1.memory.unit, 'MB');
+      expect(gpu1.memory.processes.length, 2);
+      expect(gpu1.memory.processes[0].pid, 2456);
+      expect(gpu1.memory.processes[0].name, 'firefox');
+      expect(gpu1.memory.processes[0].memory, 512);
+      expect(gpu1.memory.processes[1].pid, 3784);
+      expect(gpu1.memory.processes[1].name, 'blender');
+      expect(gpu1.memory.processes[1].memory, 256);
+      expect(gpu1.utilization, 75);
+      expect(gpu1.fanSpeed, 1200);
+      expect(gpu1.clockSpeed, 2400);
+
+      final gpu2 = gpus[1];
+      expect(gpu2.name, 'AMD Radeon RX 6800 XT');
+      expect(gpu2.deviceId, '1');
+      expect(gpu2.temp, 38);
+      expect(gpu2.power, '85W / 300W');
+      expect(gpu2.memory.total, 16384);
+      expect(gpu2.memory.used, 512);
+      expect(gpu2.memory.unit, 'MB');
+      expect(gpu2.memory.processes.length, 0);
+      expect(gpu2.utilization, 25);
+      expect(gpu2.fanSpeed, 800);
+      expect(gpu2.clockSpeed, 2100);
+    });
+
+    test('parse ROCm SMI output with different field names', () {
+      final gpus = AmdSmi.fromJson(_amdSmiRocmRaw);
+      expect(gpus.length, 1);
+
+      final gpu = gpus[0];
+      expect(gpu.name, 'AMD Radeon RX 6700 XT');
+      expect(gpu.deviceId, 'card0');
+      expect(gpu.temp, 42);
+      expect(gpu.power, '95W / 230W');
+      expect(gpu.memory.total, 12288);
+      expect(gpu.memory.used, 768);
+      expect(gpu.memory.unit, 'MiB');
+      expect(gpu.memory.processes.length, 1);
+      expect(gpu.memory.processes[0].pid, 1234);
+      expect(gpu.memory.processes[0].name, 'game.exe');
+      expect(gpu.memory.processes[0].memory, 512);
+      expect(gpu.utilization, 60);
+      expect(gpu.fanSpeed, 950);
+      expect(gpu.clockSpeed, 1800);
+    });
+
+    test('parse alternative field names', () {
+      final gpus = AmdSmi.fromJson(_amdSmiAlternativeRaw);
+      expect(gpus.length, 1);
+
+      final gpu = gpus[0];
+      expect(gpu.name, 'Radeon RX 580');
+      expect(gpu.deviceId, '0');
+      expect(gpu.temp, 55);
+      expect(gpu.power, '150W / 185W');
+      expect(gpu.memory.total, 8192);
+      expect(gpu.memory.used, 2048);
+      expect(gpu.memory.unit, 'MB');
+      expect(gpu.memory.processes.length, 0);
+      expect(gpu.utilization, 90);
+      expect(gpu.fanSpeed, 1500);
+      expect(gpu.clockSpeed, 1366);
+    });
+
+    test('handle edge cases and string parsing', () {
+      final gpus = AmdSmi.fromJson(_amdSmiEdgeCasesRaw);
+      expect(gpus.length, 2);
+
+      final gpu1 = gpus[0];
+      expect(gpu1.name, 'Unknown AMD GPU');
+      expect(gpu1.deviceId, '');
+      expect(gpu1.temp, 0);
+      expect(gpu1.power, 'N/A');
+      expect(gpu1.memory.total, 0);
+      expect(gpu1.memory.used, 0);
+      expect(gpu1.memory.unit, 'MB');
+      expect(gpu1.memory.processes.length, 0);
+      expect(gpu1.utilization, 0);
+      expect(gpu1.fanSpeed, 0);
+      expect(gpu1.clockSpeed, 0);
+
+      final gpu2 = gpus[1];
+      expect(gpu2.name, 'AMD Test GPU');
+      expect(gpu2.deviceId, 'test');
+      expect(gpu2.temp, 50);
+      expect(gpu2.power, '100W');
+      expect(gpu2.memory.total, 16384);
+      expect(gpu2.memory.used, 2048);
+      expect(gpu2.memory.unit, 'MB');
+      expect(gpu2.utilization, 80);
+      expect(gpu2.fanSpeed, 1100);
+      expect(gpu2.clockSpeed, 2000);
+    });
+
+    test('handle invalid JSON gracefully', () {
+      final gpus1 = AmdSmi.fromJson(_invalidJson);
+      expect(gpus1.length, 0);
+
+      final gpus2 = AmdSmi.fromJson(_malformedJson);
+      expect(gpus2.length, 0);
+
+      final gpus3 = AmdSmi.fromJson('invalid json');
+      expect(gpus3.length, 0);
+    });
+
+    test('handle empty array', () {
+      final gpus = AmdSmi.fromJson(_emptyArray);
+      expect(gpus.length, 0);
+    });
+  });
+
+  group('AmdSmi helper methods', () {
+    test('_parseIntValue handles various input types', () {
+      expect(AmdSmi.fromJson('[{"name":"test","temp":42}]')[0].temp, 42);
+      expect(AmdSmi.fromJson('[{"name":"test","temp":"45°C"}]')[0].temp, 45);
+      expect(AmdSmi.fromJson('[{"name":"test","temp":"1200 RPM"}]')[0].temp, 1200);
+      expect(AmdSmi.fromJson('[{"name":"test","temp":"N/A"}]')[0].temp, 0);
+      expect(AmdSmi.fromJson('[{"name":"test","temp":null}]')[0].temp, 0);
+    });
+
+    test('_formatPower handles different power scenarios', () {
+      final gpu1 = AmdSmi.fromJson('[{"name":"test","power_draw":100,"power_cap":200}]')[0];
+      expect(gpu1.power, '100W / 200W');
+
+      final gpu2 = AmdSmi.fromJson('[{"name":"test","power_draw":50}]')[0];
+      expect(gpu2.power, '50W');
+
+      final gpu3 = AmdSmi.fromJson('[{"name":"test"}]')[0];
+      expect(gpu3.power, 'N/A');
+    });
+
+    test('_parseMemory handles missing memory data', () {
+      final gpu = AmdSmi.fromJson('[{"name":"test"}]')[0];
+      expect(gpu.memory.total, 0);
+      expect(gpu.memory.used, 0);
+      expect(gpu.memory.unit, 'MB');
+      expect(gpu.memory.processes.length, 0);
+    });
+
+    test('_parseProcess filters invalid processes', () {
+      const jsonWithInvalidProcess = '''
+      [
+        {
+          "name": "Test GPU",
+          "memory": {
+            "processes": [
+              {
+                "pid": 0,
+                "name": "invalid",
+                "memory": 100
+              },
+              {
+                "pid": 1234,
+                "name": "valid",
+                "memory": 200
+              }
+            ]
+          }
+        }
+      ]
+      ''';
+      
+      final gpu = AmdSmi.fromJson(jsonWithInvalidProcess)[0];
+      expect(gpu.memory.processes.length, 1);
+      expect(gpu.memory.processes[0].pid, 1234);
+      expect(gpu.memory.processes[0].name, 'valid');
+    });
+  });
+
+  group('AmdSmi data classes', () {
+    test('AmdSmiItem toString', () {
+      final memory = AmdSmiMem(8192, 2048, 'MB', []);
+      final item = AmdSmiItem(
+        deviceId: '0',
+        name: 'Test GPU',
+        temp: 45,
+        power: '100W / 200W',
+        memory: memory,
+        utilization: 75,
+        fanSpeed: 1200,
+        clockSpeed: 2400,
+      );
+
+      final toString = item.toString();
+      expect(toString, contains('Test GPU'));
+      expect(toString, contains('45'));
+      expect(toString, contains('100W / 200W'));
+      expect(toString, contains('75%'));
+    });
+
+    test('AmdSmiMem toString', () {
+      final process = AmdSmiMemProcess(1234, 'test', 512);
+      final memory = AmdSmiMem(8192, 2048, 'MB', [process]);
+
+      final toString = memory.toString();
+      expect(toString, contains('8192'));
+      expect(toString, contains('2048'));
+      expect(toString, contains('MB'));
+      expect(toString, contains('1'));
+    });
+
+    test('AmdSmiMemProcess toString', () {
+      final process = AmdSmiMemProcess(1234, 'firefox', 512);
+
+      final toString = process.toString();
+      expect(toString, contains('1234'));
+      expect(toString, contains('firefox'));
+      expect(toString, contains('512'));
+    });
+  });
+
+  group('AmdSmi robustness', () {
+    test('handles malformed GPU objects gracefully', () {
+      const malformedGpuJson = '''
+      [
+        {
+          "name": "Valid GPU",
+          "temp": 45
+        },
+        {
+          "malformed": true
+        },
+        {
+          "name": "Another Valid GPU",
+          "temp": 50
+        }
+      ]
+      ''';
+
+      final gpus = AmdSmi.fromJson(malformedGpuJson);
+      expect(gpus.length, 3);
+      expect(gpus[0].name, 'Valid GPU');
+      expect(gpus[0].temp, 45);
+      expect(gpus[1].name, 'Unknown AMD GPU');
+      expect(gpus[1].temp, 0);
+      expect(gpus[2].name, 'Another Valid GPU');
+      expect(gpus[2].temp, 50);
+    });
+
+    test('handles missing required fields with defaults', () {
+      const minimalGpuJson = '''
+      [
+        {}
+      ]
+      ''';
+
+      final gpus = AmdSmi.fromJson(minimalGpuJson);
+      expect(gpus.length, 1);
+      expect(gpus[0].name, 'Unknown AMD GPU');
+      expect(gpus[0].deviceId, '0');
+      expect(gpus[0].temp, 0);
+      expect(gpus[0].power, 'N/A');
+      expect(gpus[0].utilization, 0);
+      expect(gpus[0].fanSpeed, 0);
+      expect(gpus[0].clockSpeed, 0);
+    });
+  });
+}