forked from genewildish/Mainline
David Gwilliam
3551cc249f
- Add EventBus class with pub/sub messaging (thread-safe) - Add emitter Protocol classes (EventEmitter, Startable, Stoppable) - Add event emission to NtfyPoller (NtfyMessageEvent) - Add event emission to MicMonitor (MicLevelEvent) - Update StreamController to publish stream start/end events - Add comprehensive tests for eventbus and emitters modules
69 lines
2.1 KiB
Python
69 lines
2.1 KiB
Python
"""
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Stream controller - manages input sources and orchestrates the render stream.
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"""
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from engine.config import Config, get_config
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from engine.eventbus import EventBus
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from engine.events import EventType, StreamEvent
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from engine.mic import MicMonitor
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from engine.ntfy import NtfyPoller
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from engine.scroll import stream
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class StreamController:
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"""Controls the stream lifecycle - initializes sources and runs the stream."""
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def __init__(self, config: Config | None = None, event_bus: EventBus | None = None):
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self.config = config or get_config()
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self.event_bus = event_bus
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self.mic: MicMonitor | None = None
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self.ntfy: NtfyPoller | None = None
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def initialize_sources(self) -> tuple[bool, bool]:
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"""Initialize microphone and ntfy sources.
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Returns:
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(mic_ok, ntfy_ok) - success status for each source
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"""
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self.mic = MicMonitor(threshold_db=self.config.mic_threshold_db)
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mic_ok = self.mic.start() if self.mic.available else False
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self.ntfy = NtfyPoller(
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self.config.ntfy_topic,
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reconnect_delay=self.config.ntfy_reconnect_delay,
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display_secs=self.config.message_display_secs,
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)
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ntfy_ok = self.ntfy.start()
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return bool(mic_ok), ntfy_ok
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def run(self, items: list) -> None:
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"""Run the stream with initialized sources."""
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if self.mic is None or self.ntfy is None:
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self.initialize_sources()
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if self.event_bus:
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self.event_bus.publish(
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EventType.STREAM_START,
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StreamEvent(
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event_type=EventType.STREAM_START,
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headline_count=len(items),
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),
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)
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stream(items, self.ntfy, self.mic)
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if self.event_bus:
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self.event_bus.publish(
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EventType.STREAM_END,
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StreamEvent(
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event_type=EventType.STREAM_END,
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headline_count=len(items),
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),
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)
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def cleanup(self) -> None:
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"""Clean up resources."""
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if self.mic:
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self.mic.stop()
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