pump_bot: fix

src/pump_bot.py

@@ -13,7 +13,7 @@ from home.api.types import BotType
 from home.mqtt import MqttNode, MqttModule, MqttPayload, add_mqtt_module
 from home.mqtt.module.relay import MqttPowerStatusPayload
 from home.mqtt.module.temphum import MqttTemphumDataPayload
-from home.mqtt.module.diagnostics import InitialDiagnosticsPayload
+from home.mqtt.module.diagnostics import InitialDiagnosticsPayload, DiagnosticsPayload
 
 
 config.load('pump_bot')
@@ -210,7 +210,16 @@ def markup(ctx: Optional[bot.Context]) -> Optional[ReplyKeyboardMarkup]:
 def mqtt_payload_callback(payload: MqttPayload):
     global watering_mcu_status
 
-    watering_mcu_status['last_time'] = int(time())
+    types_the_node_can_send = (
+        InitialDiagnosticsPayload,
+        DiagnosticsPayload,
+        MqttTemphumDataPayload,
+        MqttPowerStatusPayload
+    )
+    for cl in types_the_node_can_send:
+        if isinstance(payload, cl):
+            watering_mcu_status['last_time'] = int(time())
+            break
 
     if isinstance(payload, InitialDiagnosticsPayload):
         watering_mcu_status['last_boot_time'] = int(time())

src/temphum_mqtt_node.py

@@ -0,0 +1,77 @@
+#!/usr/bin/env python3
+import asyncio
+import json
+import logging
+
+from typing import Optional
+
+from home.config import config
+from home.temphum import SensorType, create_sensor, TempHumSensor
+
+logger = logging.getLogger(__name__)
+sensor: Optional[TempHumSensor] = None
+lock = asyncio.Lock()
+delay = 0.01
+
+
+async def get_measurements():
+    async with lock:
+        await asyncio.sleep(delay)
+
+        temp = sensor.temperature()
+        rh = sensor.humidity()
+
+        return rh, temp
+
+
+async def handle_client(reader, writer):
+    request = None
+    while request != 'quit':
+        try:
+            request = await reader.read(255)
+            if request == b'\x04':
+                break
+            request = request.decode('utf-8').strip()
+        except Exception:
+            break
+
+        if request == 'read':
+            try:
+                rh, temp = await asyncio.wait_for(get_measurements(), timeout=3)
+                data = dict(humidity=rh, temp=temp)
+            except asyncio.TimeoutError as e:
+                logger.exception(e)
+                data = dict(error='i2c call timed out')
+        else:
+            data = dict(error='invalid request')
+
+        writer.write((json.dumps(data) + '\r\n').encode('utf-8'))
+        try:
+            await writer.drain()
+        except ConnectionResetError:
+            pass
+
+    writer.close()
+
+
+async def run_server(host, port):
+    server = await asyncio.start_server(handle_client, host, port)
+    async with server:
+        logger.info('Server started.')
+        await server.serve_forever()
+
+
+if __name__ == '__main__':
+    config.load()
+
+    if 'measure_delay' in config['sensor']:
+        delay = float(config['sensor']['measure_delay'])
+
+    sensor = create_sensor(SensorType(config['sensor']['type']),
+                           int(config['sensor']['bus']))
+
+    try:
+        host, port = config.get_addr('server.listen')
+        asyncio.run(run_server(host, port))
+    except KeyboardInterrupt:
+        logging.info('Exiting...')