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from ..config import ConfigUnit
from typing import Optional, Union
from ..util import Addr
from collections import namedtuple
MqttCreds = namedtuple('MqttCreds', 'username, password')
class MqttConfig(ConfigUnit):
NAME = 'mqtt'
@classmethod
def schema(cls) -> Optional[dict]:
addr_schema = {
'type': 'dict',
'required': True,
'schema': {
'host': {'type': 'string', 'required': True},
'port': {'type': 'integer', 'required': True}
}
}
schema = {}
for key in ('local', 'remote'):
schema[f'{key}_addr'] = addr_schema
schema['creds'] = {
'type': 'dict',
'required': True,
'keysrules': {'type': 'string'},
'valuesrules': {
'type': 'dict',
'schema': {
'username': {'type': 'string', 'required': True},
'password': {'type': 'string', 'required': True},
}
}
}
for key in ('client', 'server'):
schema[f'default_{key}_creds'] = {'type': 'string', 'required': True}
return schema
def remote_addr(self) -> Addr:
return Addr(host=self['remote_addr']['host'],
port=self['remote_addr']['port'])
def local_addr(self) -> Addr:
return Addr(host=self['local_addr']['host'],
port=self['local_addr']['port'])
def creds_by_name(self, name: str) -> MqttCreds:
return MqttCreds(username=self['creds'][name]['username'],
password=self['creds'][name]['password'])
def creds(self) -> MqttCreds:
return self.creds_by_name(self['default_client_creds'])
def server_creds(self) -> MqttCreds:
return self.creds_by_name(self['default_server_creds'])
class MqttNodesConfig(ConfigUnit):
NAME = 'mqtt_nodes'
@classmethod
def schema(cls) -> Optional[dict]:
return {
'common': {
'type': 'dict',
'schema': {
'temphum': {
'type': 'dict',
'schema': {
'interval': {'type': 'integer'}
}
},
'password': {'type': 'string'}
}
},
'nodes': {
'type': 'dict',
'required': True,
'keysrules': {'type': 'string'},
'valuesrules': {
'type': 'dict',
'schema': {
'type': {'type': 'string', 'required': True, 'allowed': ['esp8266', 'linux', 'none'],},
'board': {'type': 'string', 'allowed': ['nodemcu', 'd1_mini_lite', 'esp12e']},
'temphum': {
'type': 'dict',
'schema': {
'module': {'type': 'string', 'required': True, 'allowed': ['si7021', 'dht12']},
'interval': {'type': 'integer'},
'i2c_bus': {'type': 'integer'},
'tcpserver': {
'type': 'dict',
'schema': {
'port': {'type': 'integer', 'required': True}
}
}
}
},
'relay': {
'type': 'dict',
'schema': {
'device_type': {'type': 'string', 'allowed': ['lamp', 'pump', 'solenoid'], 'required': True},
'legacy_topics': {'type': 'boolean'}
}
},
'password': {'type': 'string'}
}
}
}
}
@staticmethod
def custom_validator(data):
for name, node in data['nodes'].items():
if 'temphum' in node:
if node['type'] == 'linux':
if 'i2c_bus' not in node['temphum']:
raise KeyError(f'nodes.{name}.temphum: i2c_bus is missing but required for type=linux')
if node['type'] in ('esp8266',) and 'board' not in node:
raise KeyError(f'nodes.{name}: board is missing but required for type={node["type"]}')
def get_node(self, name: str) -> dict:
node = self['nodes'][name]
if node['type'] == 'none':
return node
try:
if 'password' not in node:
node['password'] = self['common']['password']
except KeyError:
pass
try:
if 'temphum' in node:
for ckey, cval in self['common']['temphum'].items():
if ckey not in node['temphum']:
node['temphum'][ckey] = cval
except KeyError:
pass
return node
def get_nodes(self,
filters: Optional[Union[list[str], tuple[str]]] = None,
only_names=False) -> Union[dict, list[str]]:
if filters:
for f in filters:
if f not in ('temphum', 'relay'):
raise ValueError(f'{self.__class__.__name__}::get_node(): invalid filter {f}')
reslist = []
resdict = {}
for name in self['nodes'].keys():
node = self.get_node(name)
if (not filters) or ('temphum' in filters and 'temphum' in node) or ('relay' in filters and 'relay' in node):
if only_names:
reslist.append(name)
else:
resdict[name] = node
return reslist if only_names else resdict
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