import sys
import dataclasses
import logging
import json
sys.path.append("./")
import paho.mqtt.client as mqtt
logging.config.fileConfig('./logging.ini')
_LOGGER = logging.getLogger()

class EnhancedJSONEncoder(json.JSONEncoder):
    def default(self, o):
        if dataclasses.is_dataclass(o):
            return dataclasses.asdict(o)
        return super().default(o)

unacked_publish = set()


mqttClient=mqtt.Client(mqtt.CallbackAPIVersion.VERSION2)
#mqttClient.on_publish = on_publish
mqttClient.user_data_set(unacked_publish)

logging.basicConfig(
    format="%(asctime)s %(message)s",
    level=logging.WARN,
)

def publish(dict,topic="solarManager"):
    if dataclasses.is_dataclass(dict):
        for field in dataclasses.fields(dict):
            key = field.name
            value = getattr(dict, field.name)
            if hasattr(value, '__len__') and (not isinstance(value, str)):
                if dataclasses.is_dataclass(value): #make subtopics of dataclasses
                    publish(value,topic+"/"+key)
                else:
                    #try:    #make subtopics of dataclass arrays
                    if len(value):
                        if dataclasses.is_dataclass(value[0]):
                            i=0
                            for d in value:
                                publish(d,topic+"/"+key+str(i))
                                i=i+1
                    #except:
                        else:
                            mqttClient.publish(topic+"/"+key,json.dumps(value, cls=EnhancedJSONEncoder))
                    else:   #output empty array anyway to keep data consistent
                        mqttClient.publish(topic+"/"+key,json.dumps(value, cls=EnhancedJSONEncoder))
            else:
                try:
                    flt = float(value)
                    mqttClient.publish(topic+"/"+key,round(flt,2))
                except ValueError:
                    mqttClient.publish(topic+"/"+key,value)
    else:
        for key, value in dict.items():
            # Ein einzelnes Dataclass-Objekt (z.B. rtData["byd"]) hat keine
            # Laenge und fiel frueher in den Zahlenzweig - "value is no number".
            if dataclasses.is_dataclass(value) and not isinstance(value, type):
                publish(value,topic+"/"+key)
            elif hasattr(value, '__len__') and (not isinstance(value, str)):
                if dataclasses.is_dataclass(value): #make subtopics of dataclasses
                    publish(value,topic+"/"+key)
                else:
                    #try:    #make subtopics of dataclass arrays
                    if len(value):
                        if dataclasses.is_dataclass(value[0]):
                            i=0
                            for d in value:
                                publish(d,topic+"/"+key+str(i))
                                i=i+1
                    #except:
                        else:
                            mqttClient.publish(topic+"/"+key,json.dumps(value, cls=EnhancedJSONEncoder))
                    else:   #output empty array anyway to keep data consistent
                        mqttClient.publish(topic+"/"+key,json.dumps(value, cls=EnhancedJSONEncoder))
            else:
                try:
                    flt = float(value)
                    mqttClient.publish(topic+"/"+key,round(flt,2))
                except ValueError:
                    mqttClient.publish(topic+"/"+key,value)
                except:
                	_LOGGER.error(f"value is no number")
                
    #print(message)

def startMqttClient():
   mqttClient.connect("localhost", 1883, 60)
   mqttClient.loop_start()
        #await asyncio.Future()  # run forever
def closeMqttClient():
    mqttClient.disconnect()