forked from genewildish/Mainline
David Gwilliam
31cabe9128
- Add RenderStage adapter that handles rendering pipeline - Add EffectPluginStage with proper EffectContext - Add DisplayStage with init handling - Add ItemsStage for pre-fetched items - Add metrics collection to Pipeline (StageMetrics, FrameMetrics) - Add get_metrics_summary() and reset_metrics() methods - Add --pipeline and --pipeline-preset flags for v2 mode - Add PipelineNode.metrics for self-documenting introspection - Add introspect_new_pipeline() method with performance data - Add mise tasks: run-v2, run-v2-demo, run-v2-poetry, run-v2-websocket, run-v2-firehose
300 lines
8.7 KiB
Python
300 lines
8.7 KiB
Python
"""
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Stage adapters - Bridge existing components to the Stage interface.
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This module provides adapters that wrap existing components
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(EffectPlugin, Display, DataSource, Camera) as Stage implementations.
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"""
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import random
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from typing import Any
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from engine.pipeline.core import PipelineContext, Stage
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class RenderStage(Stage):
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"""Stage that renders items to a text buffer for display.
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This mimics the old demo's render pipeline:
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- Selects headlines and renders them to blocks
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- Applies camera scroll position
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- Adds firehose layer if enabled
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"""
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def __init__(
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self,
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items: list,
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width: int = 80,
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height: int = 24,
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camera_speed: float = 1.0,
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camera_mode: str = "vertical",
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firehose_enabled: bool = False,
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name: str = "render",
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):
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self.name = name
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self.category = "render"
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self.optional = False
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self._items = items
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self._width = width
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self._height = height
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self._camera_speed = camera_speed
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self._camera_mode = camera_mode
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self._firehose_enabled = firehose_enabled
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self._camera_y = 0.0
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self._camera_x = 0
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self._scroll_accum = 0.0
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self._ticker_next_y = 0
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self._active: list = []
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self._seen: set = set()
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self._pool: list = list(items)
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self._noise_cache: dict = {}
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self._frame_count = 0
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@property
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def capabilities(self) -> set[str]:
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return {"render.output"}
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@property
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def dependencies(self) -> set[str]:
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return {"source.items"}
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def init(self, ctx: PipelineContext) -> bool:
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random.shuffle(self._pool)
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return True
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def process(self, data: Any, ctx: PipelineContext) -> Any:
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"""Render items to a text buffer."""
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from engine.effects import next_headline
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from engine.layers import render_firehose, render_ticker_zone
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from engine.render import make_block
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items = data or self._items
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w = ctx.params.viewport_width if ctx.params else self._width
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h = ctx.params.viewport_height if ctx.params else self._height
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camera_speed = ctx.params.camera_speed if ctx.params else self._camera_speed
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firehose = ctx.params.firehose_enabled if ctx.params else self._firehose_enabled
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scroll_step = 0.5 / (camera_speed * 10)
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self._scroll_accum += scroll_step
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GAP = 3
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while self._scroll_accum >= scroll_step:
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self._scroll_accum -= scroll_step
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self._camera_y += 1.0
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while (
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self._ticker_next_y < int(self._camera_y) + h + 10
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and len(self._active) < 50
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):
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t, src, ts = next_headline(self._pool, items, self._seen)
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ticker_content, hc, midx = make_block(t, src, ts, w)
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self._active.append((ticker_content, hc, self._ticker_next_y, midx))
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self._ticker_next_y += len(ticker_content) + GAP
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self._active = [
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(c, hc, by, mi)
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for c, hc, by, mi in self._active
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if by + len(c) > int(self._camera_y)
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]
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for k in list(self._noise_cache):
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if k < int(self._camera_y):
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del self._noise_cache[k]
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grad_offset = (self._frame_count * 0.01) % 1.0
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buf, self._noise_cache = render_ticker_zone(
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self._active,
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scroll_cam=int(self._camera_y),
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camera_x=self._camera_x,
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ticker_h=h,
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w=w,
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noise_cache=self._noise_cache,
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grad_offset=grad_offset,
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)
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if firehose:
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firehose_buf = render_firehose(items, w, 0, h)
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buf.extend(firehose_buf)
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self._frame_count += 1
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return buf
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class EffectPluginStage(Stage):
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"""Adapter wrapping EffectPlugin as a Stage."""
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def __init__(self, effect_plugin, name: str = "effect"):
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self._effect = effect_plugin
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self.name = name
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self.category = "effect"
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self.optional = False
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@property
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def capabilities(self) -> set[str]:
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return {f"effect.{self.name}"}
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@property
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def dependencies(self) -> set[str]:
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return set()
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def process(self, data: Any, ctx: PipelineContext) -> Any:
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"""Process data through the effect."""
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if data is None:
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return None
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from engine.effects import EffectContext
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w = ctx.params.viewport_width if ctx.params else 80
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h = ctx.params.viewport_height if ctx.params else 24
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frame = ctx.params.frame_number if ctx.params else 0
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effect_ctx = EffectContext(
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terminal_width=w,
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terminal_height=h,
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scroll_cam=0,
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ticker_height=h,
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camera_x=0,
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mic_excess=0.0,
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grad_offset=(frame * 0.01) % 1.0,
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frame_number=frame,
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has_message=False,
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items=ctx.get("items", []),
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)
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return self._effect.process(data, effect_ctx)
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class DisplayStage(Stage):
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"""Adapter wrapping Display as a Stage."""
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def __init__(self, display, name: str = "terminal"):
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self._display = display
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self.name = name
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self.category = "display"
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self.optional = False
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@property
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def capabilities(self) -> set[str]:
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return {"display.output"}
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@property
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def dependencies(self) -> set[str]:
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return set()
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def init(self, ctx: PipelineContext) -> bool:
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w = ctx.params.viewport_width if ctx.params else 80
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h = ctx.params.viewport_height if ctx.params else 24
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result = self._display.init(w, h)
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return result is not False
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def process(self, data: Any, ctx: PipelineContext) -> Any:
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"""Output data to display."""
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if data is not None:
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self._display.show(data)
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return data
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def cleanup(self) -> None:
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self._display.cleanup()
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class DataSourceStage(Stage):
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"""Adapter wrapping DataSource as a Stage."""
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def __init__(self, data_source, name: str = "headlines"):
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self._source = data_source
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self.name = name
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self.category = "source"
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self.optional = False
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@property
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def capabilities(self) -> set[str]:
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return {f"source.{self.name}"}
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@property
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def dependencies(self) -> set[str]:
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return set()
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def process(self, data: Any, ctx: PipelineContext) -> Any:
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"""Fetch data from source."""
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if hasattr(self._source, "get_items"):
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return self._source.get_items()
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return data
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class ItemsStage(Stage):
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"""Stage that holds pre-fetched items and provides them to the pipeline."""
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def __init__(self, items, name: str = "headlines"):
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self._items = items
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self.name = name
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self.category = "source"
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self.optional = False
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@property
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def capabilities(self) -> set[str]:
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return {f"source.{self.name}"}
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@property
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def dependencies(self) -> set[str]:
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return set()
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def process(self, data: Any, ctx: PipelineContext) -> Any:
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"""Return the pre-fetched items."""
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return self._items
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class CameraStage(Stage):
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"""Adapter wrapping Camera as a Stage."""
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def __init__(self, camera, name: str = "vertical"):
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self._camera = camera
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self.name = name
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self.category = "camera"
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self.optional = True
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@property
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def capabilities(self) -> set[str]:
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return {"camera"}
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@property
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def dependencies(self) -> set[str]:
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return {"source.items"}
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def process(self, data: Any, ctx: PipelineContext) -> Any:
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"""Apply camera transformation to data."""
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if data is None:
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return None
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if hasattr(self._camera, "apply"):
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return self._camera.apply(
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data, ctx.params.viewport_width if ctx.params else 80
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)
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return data
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def cleanup(self) -> None:
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if hasattr(self._camera, "reset"):
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self._camera.reset()
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def create_stage_from_display(display, name: str = "terminal") -> DisplayStage:
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"""Create a Stage from a Display instance."""
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return DisplayStage(display, name)
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def create_stage_from_effect(effect_plugin, name: str) -> EffectPluginStage:
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"""Create a Stage from an EffectPlugin."""
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return EffectPluginStage(effect_plugin, name)
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def create_stage_from_source(data_source, name: str = "headlines") -> DataSourceStage:
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"""Create a Stage from a DataSource."""
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return DataSourceStage(data_source, name)
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def create_stage_from_camera(camera, name: str = "vertical") -> CameraStage:
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"""Create a Stage from a Camera."""
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return CameraStage(camera, name)
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def create_items_stage(items, name: str = "headlines") -> ItemsStage:
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"""Create a Stage that holds pre-fetched items."""
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return ItemsStage(items, name)
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