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import json
from src.constants.constants import AbortReason, ListeningMode
class Protocol:
def __init__(self):
self.session_id = ""
# 初始化回调函数为None
self.on_incoming_json = None
self.on_incoming_audio = None
self.on_audio_channel_opened = None
self.on_audio_channel_closed = None
self.on_network_error = None
def on_incoming_json(self, callback):
"""设置JSON消息接收回调函数"""
self.on_incoming_json = callback
def on_incoming_audio(self, callback):
"""设置音频数据接收回调函数"""
self.on_incoming_audio = callback
def on_audio_channel_opened(self, callback):
"""设置音频通道打开回调函数"""
self.on_audio_channel_opened = callback
def on_audio_channel_closed(self, callback):
"""设置音频通道关闭回调函数"""
self.on_audio_channel_closed = callback
def on_network_error(self, callback):
"""设置网络错误回调函数"""
self.on_network_error = callback
async def send_text(self, message):
"""发送文本消息的抽象方法，需要在子类中实现"""
raise NotImplementedError("send_text方法必须由子类实现")
async def send_abort_speaking(self, reason):
"""发送中止语音的消息"""
message = {
"session_id": self.session_id,
"type": "abort"
}
if reason == AbortReason.WAKE_WORD_DETECTED:
message["reason"] = "wake_word_detected"
await self.send_text(json.dumps(message))
async def send_wake_word_detected(self, wake_word):
"""发送检测到唤醒词的消息"""
message = {
"session_id": self.session_id,
"type": "listen",
"state": "detect",
"text": wake_word
}
await self.send_text(json.dumps(message))
async def send_start_listening(self, mode):
"""发送开始监听的消息"""
mode_map = {
ListeningMode.ALWAYS_ON: "realtime",
ListeningMode.AUTO_STOP: "auto",
ListeningMode.MANUAL: "manual"
}
message = {
"session_id": self.session_id,
"type": "listen",
"state": "start",
"mode": mode_map[mode]
}
await self.send_text(json.dumps(message))
async def send_stop_listening(self):
"""发送停止监听的消息"""
message = {
"session_id": self.session_id,
"type": "listen",
"state": "stop"
}
await self.send_text(json.dumps(message))
async def send_iot_descriptors(self, descriptors):
"""发送物联网设备描述信息"""
message = {
"session_id": self.session_id,
"type": "iot",
"descriptors": json.loads(descriptors) if isinstance(descriptors, str) else descriptors
}
await self.send_text(json.dumps(message))
async def send_iot_states(self, states):
"""发送物联网设备状态信息"""
message = {
"session_id": self.session_id,
"type": "iot",
"states": json.loads(states) if isinstance(states, str) else states
}
await self.send_text(json.dumps(message)) |