From c9b351a08e31aa0c34892065f02f9ef710b6cd34 Mon Sep 17 00:00:00 2001
From: Evgeny Zinoviev <me@ch1p.io>
Date: Sat, 24 Feb 2024 02:00:40 +0300
Subject: mqtt changes

---
 bin/temphum_mqtt_node.py | 114 ++++++++++++++++++++++++++---------------------
 1 file changed, 63 insertions(+), 51 deletions(-)

(limited to 'bin/temphum_mqtt_node.py')

diff --git a/bin/temphum_mqtt_node.py b/bin/temphum_mqtt_node.py
index 9ea436d..4259f65 100755
--- a/bin/temphum_mqtt_node.py
+++ b/bin/temphum_mqtt_node.py
@@ -1,79 +1,91 @@
 #!/usr/bin/env python3
+import __py_include
 import asyncio
-import json
 import logging
-import __py_include
 
+from datetime import datetime
+from apscheduler.schedulers.asyncio import AsyncIOScheduler
 from typing import Optional
-
+from argparse import ArgumentParser
 from homekit.config import config
+from homekit.mqtt import MqttNodesConfig, MqttNode, MqttWrapper
+from homekit.mqtt.module.temphum import MqttTempHumModule, MqttTemphumDataPayload
 from homekit.temphum import SensorType, BaseSensor
 from homekit.temphum.i2c import create_sensor
 
-logger = logging.getLogger(__name__)
-sensor: Optional[BaseSensor] = None
-lock = asyncio.Lock()
-delay = 0.01
+_logger = logging.getLogger(__name__)
+_sensor: Optional[BaseSensor] = None
+_lock = asyncio.Lock()
+_mqtt: MqttWrapper
+_mqtt_ndoe: MqttNode
+_mqtt_temphum: MqttTempHumModule
+_stopped = True
+_scheduler = AsyncIOScheduler()
+_sched_task_added = False
 
 
 async def get_measurements():
-    async with lock:
-        await asyncio.sleep(delay)
-
-        temp = sensor.temperature()
-        rh = sensor.humidity()
+    async with _lock:
+        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
+def on_mqtt_connect():
+    global _stopped, _sched_task_added
+    _stopped = False
+
+    if not _sched_task_added:
+        _scheduler.add_job(on_sched_task, 'interval', seconds=60, next_run_time=datetime.now())
+        _scheduler.start()
+        _sched_task_added = True
 
-        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
+def on_mqtt_disconnect():
+    global _stopped
+    _stopped = True
 
-    writer.close()
 
+async def on_sched_task():
+    if _stopped:
+        return
 
-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()
+    rh, temp = await get_measurements()
+    payload = MqttTemphumDataPayload(temp=temp, rh=rh)
+    _mqtt_node.publish('data', payload.pack())
 
 
 if __name__ == '__main__':
-    config.load_app()
+    parser = ArgumentParser()
+    parser.add_argument('--node-id',
+                        type=str,
+                        required=True,
+                        choices=MqttNodesConfig().get_nodes(only_names=True),
+                        help='node id must be defined in the config')
+    args = config.load_app(parser=parser)
 
-    if 'measure_delay' in config['sensor']:
-        delay = float(config['sensor']['measure_delay'])
+    node_cfg = MqttNodesConfig()[args.node_id]
+    _sensor = create_sensor(SensorType(node_cfg['temphum']['module']),
+                            int(node_cfg['temphum']['i2c_bus']))
 
-    sensor = create_sensor(SensorType(config['sensor']['type']),
-                           int(config['sensor']['bus']))
+    _mqtt = MqttWrapper(client_id=args.node_id)
+    _mqtt.add_connect_callback(on_mqtt_connect)
+    _mqtt.add_disconnect_callback(on_mqtt_disconnect)
+
+    _mqtt_node = MqttNode(node_id=args.node_id,
+                          node_secret=MqttNodesConfig.get_node(args.node_id)['password'])
+    _mqtt.add_node(_mqtt_node)
+
+    _mqtt_temphum = _mqtt_node.load_module('temphum')
 
     try:
-        host, port = config.get_addr('server.listen')
-        asyncio.run(run_server(host, port))
-    except KeyboardInterrupt:
-        logging.info('Exiting...')
+        _mqtt.connect_and_loop(loop_forever=True)
+
+    except (KeyboardInterrupt, SystemExit):
+        if _scheduler:
+            _scheduler.shutdown()
+        _logger.info('Exiting...')
+
+    finally:
+        _mqtt.disconnect()
\ No newline at end of file
-- 
cgit v1.2.3