# DO NOT EDIT THIS FILE!
#
# This file is generated from the CDP specification. If you need to make
# changes, edit the generator and regenerate all of the modules.
#
# CDP domain: WebAudio (experimental)
from __future__ import annotations
from .util import event_class, T_JSON_DICT
from dataclasses import dataclass
import enum
import typing

class GraphObjectId(str):
    '''
    An unique ID for a graph object (AudioContext, AudioNode, AudioParam) in Web Audio API
    '''
    def to_json(self) -> str:
        return self

    @classmethod
    def from_json(cls, json: str) -> GraphObjectId:
        return cls(json)

    def __repr__(self):
        return 'GraphObjectId({})'.format(super().__repr__())


class ContextType(enum.Enum):
    '''
    Enum of BaseAudioContext types
    '''
    REALTIME = "realtime"
    OFFLINE = "offline"

    def to_json(self):
        return self.value

    @classmethod
    def from_json(cls, json):
        return cls(json)


class ContextState(enum.Enum):
    '''
    Enum of AudioContextState from the spec
    '''
    SUSPENDED = "suspended"
    RUNNING = "running"
    CLOSED = "closed"

    def to_json(self):
        return self.value

    @classmethod
    def from_json(cls, json):
        return cls(json)


class NodeType(str):
    '''
    Enum of AudioNode types
    '''
    def to_json(self) -> str:
        return self

    @classmethod
    def from_json(cls, json: str) -> NodeType:
        return cls(json)

    def __repr__(self):
        return 'NodeType({})'.format(super().__repr__())


class ChannelCountMode(enum.Enum):
    '''
    Enum of AudioNode::ChannelCountMode from the spec
    '''
    CLAMPED_MAX = "clamped-max"
    EXPLICIT = "explicit"
    MAX_ = "max"

    def to_json(self):
        return self.value

    @classmethod
    def from_json(cls, json):
        return cls(json)


class ChannelInterpretation(enum.Enum):
    '''
    Enum of AudioNode::ChannelInterpretation from the spec
    '''
    DISCRETE = "discrete"
    SPEAKERS = "speakers"

    def to_json(self):
        return self.value

    @classmethod
    def from_json(cls, json):
        return cls(json)


class ParamType(str):
    '''
    Enum of AudioParam types
    '''
    def to_json(self) -> str:
        return self

    @classmethod
    def from_json(cls, json: str) -> ParamType:
        return cls(json)

    def __repr__(self):
        return 'ParamType({})'.format(super().__repr__())


class AutomationRate(enum.Enum):
    '''
    Enum of AudioParam::AutomationRate from the spec
    '''
    A_RATE = "a-rate"
    K_RATE = "k-rate"

    def to_json(self):
        return self.value

    @classmethod
    def from_json(cls, json):
        return cls(json)


@dataclass
class ContextRealtimeData:
    '''
    Fields in AudioContext that change in real-time.
    '''
    #: The current context time in second in BaseAudioContext.
    current_time: float

    #: The time spent on rendering graph divided by render qunatum duration,
    #: and multiplied by 100. 100 means the audio renderer reached the full
    #: capacity and glitch may occur.
    render_capacity: float

    #: A running mean of callback interval.
    callback_interval_mean: float

    #: A running variance of callback interval.
    callback_interval_variance: float

    def to_json(self):
        json = dict()
        json['currentTime'] = self.current_time
        json['renderCapacity'] = self.render_capacity
        json['callbackIntervalMean'] = self.callback_interval_mean
        json['callbackIntervalVariance'] = self.callback_interval_variance
        return json

    @classmethod
    def from_json(cls, json):
        return cls(
            current_time=float(json['currentTime']),
            render_capacity=float(json['renderCapacity']),
            callback_interval_mean=float(json['callbackIntervalMean']),
            callback_interval_variance=float(json['callbackIntervalVariance']),
        )


@dataclass
class BaseAudioContext:
    '''
    Protocol object for BaseAudioContext
    '''
    context_id: GraphObjectId

    context_type: ContextType

    context_state: ContextState

    #: Platform-dependent callback buffer size.
    callback_buffer_size: float

    #: Number of output channels supported by audio hardware in use.
    max_output_channel_count: float

    #: Context sample rate.
    sample_rate: float

    realtime_data: typing.Optional[ContextRealtimeData] = None

    def to_json(self):
        json = dict()
        json['contextId'] = self.context_id.to_json()
        json['contextType'] = self.context_type.to_json()
        json['contextState'] = self.context_state.to_json()
        json['callbackBufferSize'] = self.callback_buffer_size
        json['maxOutputChannelCount'] = self.max_output_channel_count
        json['sampleRate'] = self.sample_rate
        if self.realtime_data is not None:
            json['realtimeData'] = self.realtime_data.to_json()
        return json

    @classmethod
    def from_json(cls, json):
        return cls(
            context_id=GraphObjectId.from_json(json['contextId']),
            context_type=ContextType.from_json(json['contextType']),
            context_state=ContextState.from_json(json['contextState']),
            callback_buffer_size=float(json['callbackBufferSize']),
            max_output_channel_count=float(json['maxOutputChannelCount']),
            sample_rate=float(json['sampleRate']),
            realtime_data=ContextRealtimeData.from_json(json['realtimeData']) if 'realtimeData' in json else None,
        )


@dataclass
class AudioListener:
    '''
    Protocol object for AudioListner
    '''
    listener_id: GraphObjectId

    context_id: GraphObjectId

    def to_json(self):
        json = dict()
        json['listenerId'] = self.listener_id.to_json()
        json['contextId'] = self.context_id.to_json()
        return json

    @classmethod
    def from_json(cls, json):
        return cls(
            listener_id=GraphObjectId.from_json(json['listenerId']),
            context_id=GraphObjectId.from_json(json['contextId']),
        )


@dataclass
class AudioNode:
    '''
    Protocol object for AudioNode
    '''
    node_id: GraphObjectId

    context_id: GraphObjectId

    node_type: NodeType

    number_of_inputs: float

    number_of_outputs: float

    channel_count: float

    channel_count_mode: ChannelCountMode

    channel_interpretation: ChannelInterpretation

    def to_json(self):
        json = dict()
        json['nodeId'] = self.node_id.to_json()
        json['contextId'] = self.context_id.to_json()
        json['nodeType'] = self.node_type.to_json()
        json['numberOfInputs'] = self.number_of_inputs
        json['numberOfOutputs'] = self.number_of_outputs
        json['channelCount'] = self.channel_count
        json['channelCountMode'] = self.channel_count_mode.to_json()
        json['channelInterpretation'] = self.channel_interpretation.to_json()
        return json

    @classmethod
    def from_json(cls, json):
        return cls(
            node_id=GraphObjectId.from_json(json['nodeId']),
            context_id=GraphObjectId.from_json(json['contextId']),
            node_type=NodeType.from_json(json['nodeType']),
            number_of_inputs=float(json['numberOfInputs']),
            number_of_outputs=float(json['numberOfOutputs']),
            channel_count=float(json['channelCount']),
            channel_count_mode=ChannelCountMode.from_json(json['channelCountMode']),
            channel_interpretation=ChannelInterpretation.from_json(json['channelInterpretation']),
        )


@dataclass
class AudioParam:
    '''
    Protocol object for AudioParam
    '''
    param_id: GraphObjectId

    node_id: GraphObjectId

    context_id: GraphObjectId

    param_type: ParamType

    rate: AutomationRate

    default_value: float

    min_value: float

    max_value: float

    def to_json(self):
        json = dict()
        json['paramId'] = self.param_id.to_json()
        json['nodeId'] = self.node_id.to_json()
        json['contextId'] = self.context_id.to_json()
        json['paramType'] = self.param_type.to_json()
        json['rate'] = self.rate.to_json()
        json['defaultValue'] = self.default_value
        json['minValue'] = self.min_value
        json['maxValue'] = self.max_value
        return json

    @classmethod
    def from_json(cls, json):
        return cls(
            param_id=GraphObjectId.from_json(json['paramId']),
            node_id=GraphObjectId.from_json(json['nodeId']),
            context_id=GraphObjectId.from_json(json['contextId']),
            param_type=ParamType.from_json(json['paramType']),
            rate=AutomationRate.from_json(json['rate']),
            default_value=float(json['defaultValue']),
            min_value=float(json['minValue']),
            max_value=float(json['maxValue']),
        )


def enable() -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
    '''
    Enables the WebAudio domain and starts sending context lifetime events.
    '''
    cmd_dict: T_JSON_DICT = {
        'method': 'WebAudio.enable',
    }
    json = yield cmd_dict


def disable() -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
    '''
    Disables the WebAudio domain.
    '''
    cmd_dict: T_JSON_DICT = {
        'method': 'WebAudio.disable',
    }
    json = yield cmd_dict


def get_realtime_data(
        context_id: GraphObjectId
    ) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,ContextRealtimeData]:
    '''
    Fetch the realtime data from the registered contexts.

    :param context_id:
    :returns: 
    '''
    params: T_JSON_DICT = dict()
    params['contextId'] = context_id.to_json()
    cmd_dict: T_JSON_DICT = {
        'method': 'WebAudio.getRealtimeData',
        'params': params,
    }
    json = yield cmd_dict
    return ContextRealtimeData.from_json(json['realtimeData'])


@event_class('WebAudio.contextCreated')
@dataclass
class ContextCreated:
    '''
    Notifies that a new BaseAudioContext has been created.
    '''
    context: BaseAudioContext

    @classmethod
    def from_json(cls, json: T_JSON_DICT) -> ContextCreated:
        return cls(
            context=BaseAudioContext.from_json(json['context'])
        )


@event_class('WebAudio.contextWillBeDestroyed')
@dataclass
class ContextWillBeDestroyed:
    '''
    Notifies that an existing BaseAudioContext will be destroyed.
    '''
    context_id: GraphObjectId

    @classmethod
    def from_json(cls, json: T_JSON_DICT) -> ContextWillBeDestroyed:
        return cls(
            context_id=GraphObjectId.from_json(json['contextId'])
        )


@event_class('WebAudio.contextChanged')
@dataclass
class ContextChanged:
    '''
    Notifies that existing BaseAudioContext has changed some properties (id stays the same)..
    '''
    context: BaseAudioContext

    @classmethod
    def from_json(cls, json: T_JSON_DICT) -> ContextChanged:
        return cls(
            context=BaseAudioContext.from_json(json['context'])
        )


@event_class('WebAudio.audioListenerCreated')
@dataclass
class AudioListenerCreated:
    '''
    Notifies that the construction of an AudioListener has finished.
    '''
    listener: AudioListener

    @classmethod
    def from_json(cls, json: T_JSON_DICT) -> AudioListenerCreated:
        return cls(
            listener=AudioListener.from_json(json['listener'])
        )


@event_class('WebAudio.audioListenerWillBeDestroyed')
@dataclass
class AudioListenerWillBeDestroyed:
    '''
    Notifies that a new AudioListener has been created.
    '''
    context_id: GraphObjectId
    listener_id: GraphObjectId

    @classmethod
    def from_json(cls, json: T_JSON_DICT) -> AudioListenerWillBeDestroyed:
        return cls(
            context_id=GraphObjectId.from_json(json['contextId']),
            listener_id=GraphObjectId.from_json(json['listenerId'])
        )


@event_class('WebAudio.audioNodeCreated')
@dataclass
class AudioNodeCreated:
    '''
    Notifies that a new AudioNode has been created.
    '''
    node: AudioNode

    @classmethod
    def from_json(cls, json: T_JSON_DICT) -> AudioNodeCreated:
        return cls(
            node=AudioNode.from_json(json['node'])
        )


@event_class('WebAudio.audioNodeWillBeDestroyed')
@dataclass
class AudioNodeWillBeDestroyed:
    '''
    Notifies that an existing AudioNode has been destroyed.
    '''
    context_id: GraphObjectId
    node_id: GraphObjectId

    @classmethod
    def from_json(cls, json: T_JSON_DICT) -> AudioNodeWillBeDestroyed:
        return cls(
            context_id=GraphObjectId.from_json(json['contextId']),
            node_id=GraphObjectId.from_json(json['nodeId'])
        )


@event_class('WebAudio.audioParamCreated')
@dataclass
class AudioParamCreated:
    '''
    Notifies that a new AudioParam has been created.
    '''
    param: AudioParam

    @classmethod
    def from_json(cls, json: T_JSON_DICT) -> AudioParamCreated:
        return cls(
            param=AudioParam.from_json(json['param'])
        )


@event_class('WebAudio.audioParamWillBeDestroyed')
@dataclass
class AudioParamWillBeDestroyed:
    '''
    Notifies that an existing AudioParam has been destroyed.
    '''
    context_id: GraphObjectId
    node_id: GraphObjectId
    param_id: GraphObjectId

    @classmethod
    def from_json(cls, json: T_JSON_DICT) -> AudioParamWillBeDestroyed:
        return cls(
            context_id=GraphObjectId.from_json(json['contextId']),
            node_id=GraphObjectId.from_json(json['nodeId']),
            param_id=GraphObjectId.from_json(json['paramId'])
        )


@event_class('WebAudio.nodesConnected')
@dataclass
class NodesConnected:
    '''
    Notifies that two AudioNodes are connected.
    '''
    context_id: GraphObjectId
    source_id: GraphObjectId
    destination_id: GraphObjectId
    source_output_index: typing.Optional[float]
    destination_input_index: typing.Optional[float]

    @classmethod
    def from_json(cls, json: T_JSON_DICT) -> NodesConnected:
        return cls(
            context_id=GraphObjectId.from_json(json['contextId']),
            source_id=GraphObjectId.from_json(json['sourceId']),
            destination_id=GraphObjectId.from_json(json['destinationId']),
            source_output_index=float(json['sourceOutputIndex']) if 'sourceOutputIndex' in json else None,
            destination_input_index=float(json['destinationInputIndex']) if 'destinationInputIndex' in json else None
        )


@event_class('WebAudio.nodesDisconnected')
@dataclass
class NodesDisconnected:
    '''
    Notifies that AudioNodes are disconnected. The destination can be null, and it means all the outgoing connections from the source are disconnected.
    '''
    context_id: GraphObjectId
    source_id: GraphObjectId
    destination_id: GraphObjectId
    source_output_index: typing.Optional[float]
    destination_input_index: typing.Optional[float]

    @classmethod
    def from_json(cls, json: T_JSON_DICT) -> NodesDisconnected:
        return cls(
            context_id=GraphObjectId.from_json(json['contextId']),
            source_id=GraphObjectId.from_json(json['sourceId']),
            destination_id=GraphObjectId.from_json(json['destinationId']),
            source_output_index=float(json['sourceOutputIndex']) if 'sourceOutputIndex' in json else None,
            destination_input_index=float(json['destinationInputIndex']) if 'destinationInputIndex' in json else None
        )


@event_class('WebAudio.nodeParamConnected')
@dataclass
class NodeParamConnected:
    '''
    Notifies that an AudioNode is connected to an AudioParam.
    '''
    context_id: GraphObjectId
    source_id: GraphObjectId
    destination_id: GraphObjectId
    source_output_index: typing.Optional[float]

    @classmethod
    def from_json(cls, json: T_JSON_DICT) -> NodeParamConnected:
        return cls(
            context_id=GraphObjectId.from_json(json['contextId']),
            source_id=GraphObjectId.from_json(json['sourceId']),
            destination_id=GraphObjectId.from_json(json['destinationId']),
            source_output_index=float(json['sourceOutputIndex']) if 'sourceOutputIndex' in json else None
        )


@event_class('WebAudio.nodeParamDisconnected')
@dataclass
class NodeParamDisconnected:
    '''
    Notifies that an AudioNode is disconnected to an AudioParam.
    '''
    context_id: GraphObjectId
    source_id: GraphObjectId
    destination_id: GraphObjectId
    source_output_index: typing.Optional[float]

    @classmethod
    def from_json(cls, json: T_JSON_DICT) -> NodeParamDisconnected:
        return cls(
            context_id=GraphObjectId.from_json(json['contextId']),
            source_id=GraphObjectId.from_json(json['sourceId']),
            destination_id=GraphObjectId.from_json(json['destinationId']),
            source_output_index=float(json['sourceOutputIndex']) if 'sourceOutputIndex' in json else None
        )
