frobarng: NetworkProvider done

hm/desktop/frobar/.dev/new.py

@@ -3,9 +3,11 @@
 import asyncio
 import datetime
 import enum
+import ipaddress
 import logging
 import random
 import signal
+import socket
 import typing
 
 import coloredlogs
@@ -22,6 +24,21 @@ C = typing.TypeVar("C", bound="ComposableText")
 Sortable = str | int
 
 
+def humanSize(numi: int) -> str:
+    """
+    Returns a string of width 3+3
+    """
+    num = float(numi)
+    for unit in ("B  ", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "ZiB"):
+        if abs(num) < 1000:
+            if num >= 10:
+                return "{:3d}{}".format(int(num), unit)
+            else:
+                return "{:.1f}{}".format(num, unit)
+        num /= 1024
+    return "{:d}YiB".format(numi)
+
+
 class ComposableText(typing.Generic[P, C]):
 
     def __init__(
@@ -267,6 +284,7 @@ class Bar(ComposableText):
         super().__init__()
         self.parent: None
         self.children: typing.MutableSequence[Screen]
+        self.longRunningTasks: list[asyncio.Task] = list()
 
         self.refresh = asyncio.Event()
         self.taskGroup = asyncio.TaskGroup()
@@ -280,6 +298,10 @@ class Bar(ComposableText):
                 continue
             Screen(parent=self, output=output.name)
 
+    def addLongRunningTask(self, coro: typing.Coroutine) -> None:
+        task = self.taskGroup.create_task(coro)
+        self.longRunningTasks.append(task)
+
     async def run(self) -> None:
         cmd = [
             "lemonbar",
@@ -299,7 +321,6 @@ class Bar(ComposableText):
                 await self.refresh.wait()
                 self.refresh.clear()
                 markup = self.getMarkup()
-                # log.debug(markup)
                 proc.stdin.write(markup.encode())
 
         async def actionHandler() -> None:
@@ -310,21 +331,15 @@ class Bar(ComposableText):
                 callback = self.actions[command]
                 callback()
 
-        longRunningTasks = list()
-
-        def addLongRunningTask(coro: typing.Coroutine) -> None:
-            task = self.taskGroup.create_task(coro)
-            longRunningTasks.append(task)
-
         async with self.taskGroup:
-            addLongRunningTask(refresher())
-            addLongRunningTask(actionHandler())
+            self.addLongRunningTask(refresher())
+            self.addLongRunningTask(actionHandler())
             for provider in self.providers:
-                addLongRunningTask(provider.run())
+                self.addLongRunningTask(provider.run())
 
             def exit() -> None:
                 log.info("Terminating")
-                for task in longRunningTasks:
+                for task in self.longRunningTasks:
                     task.cancel()
 
             loop = asyncio.get_event_loop()
@@ -563,11 +578,50 @@ class NetworkProviderSection(StatefulSection):
         self.numberStates = 5 if self.wifi else 4
         self.state = 1 if self.wifi else 0
 
+    async def updateOnStateChange(self) -> None:
+        while True:
+            await self.stateChanged.wait()
+            await self.provider.updateIface(self.iface)
+
     async def getText(self) -> str | None:
         if self.ignore or not self.provider.if_stats[self.iface].isup:
             return None
-
         text = self.icon
+
+        state = self.state + (0 if self.wifi else 1)  # SSID
+        if self.wifi and state >= 1:
+            cmd = ["iwgetid", self.iface, "--raw"]
+            proc = await asyncio.create_subprocess_exec(
+                *cmd, stdout=asyncio.subprocess.PIPE
+            )
+            stdout, stderr = await proc.communicate()
+            text += f" {stdout.decode().strip()}"
+
+        if state >= 2:  # Address
+            for address in self.provider.if_addrs[self.iface]:
+                if address.family == socket.AF_INET:
+                    net = ipaddress.IPv4Network(
+                        (address.address, address.netmask), strict=False
+                    )
+                    text += f" {net.with_prefixlen}"
+                    break
+
+        if state >= 3:  # Speed
+            prevRecv = self.provider.prev_io_counters[self.iface].bytes_recv
+            recv = self.provider.io_counters[self.iface].bytes_recv
+            prevSent = self.provider.prev_io_counters[self.iface].bytes_sent
+            sent = self.provider.io_counters[self.iface].bytes_sent
+            recvDiff = recv - prevRecv
+            sentDiff = sent - prevSent
+            dt = self.provider.time - self.provider.prev_time
+            recvDiff /= dt
+            sentDiff /= dt
+
+            text += f" ↓{humanSize(recvDiff)}↑{humanSize(sentDiff)}"
+
+        if state >= 4:  # Counter
+            text += f" ⇓{humanSize(recv)}⇑{humanSize(sent)}"
+
         return text
 
 
@@ -582,12 +636,25 @@ class NetworkProvider(MirrorProvider):
     async def run(self) -> None:
         await super().run()
 
-        while True:
-            # if_addrs: dict[str, list[psutil._common.snicaddr]] = psutil.net_if_addrs()
-            # io_counters: dict[str, psutil._common.snetio] = psutil.net_io_counters(pernic=True)
+        loop = asyncio.get_running_loop()
+        self.time = loop.time()
+        self.io_counters = psutil.net_io_counters(pernic=True)
 
+        while True:
+            # Separate TaskGroup in case it takes longer than one second,
+            # it doesn't fill the main TaskGroup
             async with asyncio.TaskGroup() as tg:
+                self.prev_io_counters = self.io_counters
+                self.prev_time = self.time
+                # On-demand would only benefit if_addrs:
+                # stats are used to determine display,
+                # and we want to keep previous io_counters
+                # so displaying stats is ~instant.
+                self.time = loop.time()
                 self.if_stats = psutil.net_if_stats()
+                self.if_addrs = psutil.net_if_addrs()
+                self.io_counters = psutil.net_io_counters(pernic=True)
+
                 for iface in self.if_stats:
                     if iface not in self.sections:
                         section = NetworkProviderSection(
@@ -595,6 +662,7 @@ class NetworkProvider(MirrorProvider):
                         )
                         self.sections[iface] = section
 
+                    self.module.bar.addLongRunningTask(section.updateOnStateChange())
                     tg.create_task(self.updateIface(iface))
                 for iface, section in self.sections.items():
                     if iface not in self.if_stats: