added signal status for consumer, added initial data in sockets

consumer.py

@@ -28,17 +28,28 @@ log = structlog.get_logger()
 print("loading values from DB, please wait")
 
 values = {}
-for sign in Record.objects.last().signals.all():
+for sign in ExgausterSignal.objects.all():
-    values[sign.signal.name] = []
+    if not sign.config:
+        values[sign.name] = []
 
 em = len(Record.objects.all())
 if em > 60:
     for record in Record.objects.all()[em - 60 :]:
         for sign in record.signals.all():
-            if sign.signal.name in values:
+            if not sign.signal.config and sign.signal.name in values:
                 values[sign.signal.name].append(sign.value)
 
 
+statuses = {}
+keys_not_to_send = []
+
+for signal in ExgausterSignal.objects.filter(config__isnull=True):
+    if signal.characteristics_description:
+        statuses[signal.name] = {}
+        for installation in signal.installations.all():
+            keys_not_to_send.append(installation.name)
+            statuses[signal.name][installation.item_name] = installation.name
+
 conf = {
     "bootstrap.servers": "rc1a-2ar1hqnl386tvq7k.mdb.yandexcloud.net:9091",
     "group.id": "MentalMind",
@@ -55,7 +66,6 @@ conf = {
 def my_assign(consumer, partitions):
     for p in partitions:
         p.offset = Record.objects.last().offset + 1
-    print("assign", partitions)
     consumer.assign(partitions)
 
 
@@ -77,12 +87,14 @@ c.subscribe(["zsmk-9433-dev-01"], on_assign=my_assign)
 
 signals = {}
 for ex in ExgausterSignal.objects.all():
+    if not ex.config:
         if ex.place_x not in signals:
             signals[ex.place_x] = {}
         if ex.place_y not in signals[ex.place_x]:
             signals[ex.place_x][ex.place_y] = {}
         signals[ex.place_x][ex.place_y][ex.type] = ex
 
+
 # delete latest offset
 offset = Record.objects.last().offset
 Record.objects.filter(offset=offset).delete()
@@ -113,9 +125,7 @@ while True:
     offset = msg.offset()
     start = time.time()
     print(f"DEBUG: received {offset}, {date}")
-    loop = asyncio.get_event_loop()
+    resp = {}
-    coroutine = send_to_channel_layer(data)
-    loop.run_until_complete(coroutine)
     record = Record.objects.create(timestamp=date, offset=offset, message=data)
     if offset != 0:
         approximation_amounts = [
@@ -133,7 +143,9 @@ while True:
         approximation_values[approximation_val] = {}
 
     for key, val in data.items():
-        if "SM" in key:
+        if "SM" in key and key not in keys_not_to_send:
+            resp[key] = val
+
             if key in values:
                 del values[key][0]
             else:
@@ -151,8 +163,17 @@ while True:
                 ExgausterRecordSignal.objects.create(
                     record=record, signal=signal, value=val
                 )
-            except KeyError:
+                if key in statuses:
-                continue
+                    alarm_max = data[statuses[key]["alarm_max"]]
+                    alarm_min = data[statuses[key]["alarm_min"]]
+                    warning_max = data[statuses[key]["warning_max"]]
+                    warning_min = data[statuses[key]["warning_min"]]
+                    if val > alarm_max or val < alarm_min:
+                        resp[f"{key}_status"] = "alarm"
+                    elif val > warning_max or val < warning_min:
+                        resp[f"{key}_status"] = "warning"
+                    else:
+                        resp[f"{key}_status"] = "normal"
                 for amount, approx in approximation.items():
                     vals = values[key][60 - amount :]
                     r = sum(vals) / len(vals)
@@ -160,6 +181,12 @@ while True:
                     ExgausterRecordApproximationSignal.objects.create(
                         record=approx, signal=signal, value=r
                     )
+            except KeyError:
+                continue
+    loop = asyncio.get_event_loop()
+    coroutine = send_to_channel_layer(resp)
+    loop.run_until_complete(coroutine)
+
     for approx, data in approximation_values.items():
         loop = asyncio.get_event_loop()
         coroutine = send_to_channel_layer_approximation(data, approx)

exhauster_analytics/analytics/consumers.py

@@ -1,7 +1,10 @@
 import json
 
+from asgiref.sync import sync_to_async
 from channels.generic.websocket import AsyncWebsocketConsumer
 
+from exhauster_analytics.analytics.models import Record
+
 
 class NotificationsConsumer(AsyncWebsocketConsumer):
     def __init__(self, *args, **kwargs):
@@ -10,8 +13,11 @@ class NotificationsConsumer(AsyncWebsocketConsumer):
 
     async def connect(self):
         self.room_group_name = "notifications"
-
         await self.accept()
+
+        data = await self.get_last_record()
+        await self.send(text_data=json.dumps(data))
+
         await self.channel_layer.group_add(self.room_group_name, self.channel_name)
 
     async def disconnect(self, close_code):
@@ -21,6 +27,18 @@ class NotificationsConsumer(AsyncWebsocketConsumer):
     async def receive(self, text_data):
         pass
 
+    @sync_to_async
+    def get_last_record(self):
+        data = {}
+        record = Record.objects.last()
+        for signal in record.signals.all():
+            if not signal.signal.config:
+                data[signal.signal.name] = signal.value
+                if signal.signal.installations:
+                    data[f"{signal.signal.name}_status"] = "normal"
+
+        return data
+
     async def info(self, event):
         message = event["data"]
 

exhauster_analytics/analytics/migrations/0010_exgaustersignal_config.py

@@ -0,0 +1,23 @@
+# Generated by Django 4.1.7 on 2023-02-18 21:10
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("analytics", "0009_alter_record_options_and_more"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="exgaustersignal",
+            name="config",
+            field=models.ForeignKey(
+                null=True,
+                on_delete=django.db.models.deletion.SET_NULL,
+                related_name="installations",
+                to="analytics.exgaustersignal",
+            ),
+        ),
+    ]

exhauster_analytics/analytics/models.py

@@ -40,7 +40,9 @@ class ExgausterRecordSignal(models.Model):
 
 class ExgausterRecordApproximationSignal(models.Model):
     record = models.ForeignKey(
-        "analytics.RecordApproximation", related_name="signals", on_delete=models.CASCADE
+        "analytics.RecordApproximation",
+        related_name="signals",
+        on_delete=models.CASCADE,
     )
     signal = models.ForeignKey(
         "analytics.ExgausterSignal",
@@ -81,6 +83,10 @@ class ExgausterSignal(models.Model):
     characteristics_description = models.CharField(max_length=200, blank=True)
     item_name = models.CharField(max_length=200, blank=True)
 
+    config = models.ForeignKey(
+        "self", null=True, related_name="installations", on_delete=models.SET_NULL
+    )
+
     @property
     def name(self) -> str:
         return f"SM_Exgauster\\[{self.place_x}{':' if self.type == 'analog' else '.'}{self.place_y}]"