884 lines
29 KiB
Python
884 lines
29 KiB
Python
# piker: trading gear for hackers
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# Copyright (C) Tyler Goodlet (in stewardship for pikers)
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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'''
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Remote control tasks for sending annotations (and maybe more cmds) to
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a chart from some other actor.
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'''
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from __future__ import annotations
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from contextlib import (
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asynccontextmanager as acm,
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AsyncExitStack,
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)
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from functools import partial
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from pprint import pformat
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from typing import (
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AsyncContextManager,
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Literal,
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)
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from uuid import uuid4
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import pyqtgraph as pg
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import tractor
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import trio
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from tractor import trionics
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from tractor import (
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Portal,
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Context,
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MsgStream,
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)
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from piker.log import get_logger
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from piker.types import Struct
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from piker.service import find_service
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from piker.brokers import SymbolNotFound
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from piker.ui.qt import (
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QGraphicsItem,
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)
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from PyQt6.QtGui import QFont
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from ._display import DisplayState
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from ._interaction import ChartView
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from ._editors import (
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SelectRect,
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ArrowEditor,
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)
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from ._chart import ChartPlotWidget
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from ._dataviz import Viz
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from ._style import hcolor
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log = get_logger(__name__)
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# NOTE: this is UPDATED by the `._display.graphics_update_loop()`
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# once all chart widgets / Viz per flume have been initialized
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# allowing for remote annotation (control) of any chart-actor's mkt
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# feed by fqme lookup Bo
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_dss: dict[str, DisplayState] = {}
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# stash each and every client connection so that they can all
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# be cancelled on shutdown/error.
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# TODO: make `tractor.Context` hashable via is `.cid: str`?
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# _ctxs: set[Context] = set()
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# TODO: use type statements from 3.12+
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IpcCtxTable = dict[
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str, # each `Context.cid`
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tuple[
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Context, # handle for ctx-cancellation
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set[int] # set of annotation (instance) ids
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]
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]
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_ctxs: IpcCtxTable = {}
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# XXX: global map of all uniquely created annotation-graphics so
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# that they can be mutated (eventually) by a client.
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# NOTE: this map is only populated on the `chart` actor side (aka
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# the "annotations server" which actually renders to a Qt canvas).
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# type AnnotsTable = dict[int, QGraphicsItem]
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AnnotsTable = dict[int, QGraphicsItem]
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EditorsTable = dict[int, ArrowEditor]
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_annots: AnnotsTable = {}
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_editors: EditorsTable = {}
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def rm_annot(
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annot: ArrowEditor|SelectRect|pg.TextItem
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) -> bool:
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global _editors
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match annot:
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case pg.ArrowItem():
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editor = _editors[annot._uid]
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editor.remove(annot)
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# ^TODO? only remove each arrow or all?
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# if editor._arrows:
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# editor.remove_all()
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# else:
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# log.warning(
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# f'Annot already removed!\n'
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# f'{annot!r}\n'
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# )
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return True
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case SelectRect():
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annot.delete()
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return True
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case pg.TextItem():
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scene = annot.scene()
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if scene:
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scene.removeItem(annot)
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return True
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return False
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async def serve_rc_annots(
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ipc_key: str,
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annot_req_stream: MsgStream,
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dss: dict[str, DisplayState],
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ctxs: IpcCtxTable,
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annots: AnnotsTable,
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) -> None:
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'''
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A small viz(ualization) server for remote ctl of chart
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annotations.
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'''
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global _editors
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async for msg in annot_req_stream:
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match msg:
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case {
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'cmd': 'SelectRect',
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'fqme': fqme,
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'timeframe': timeframe,
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'meth': str(meth),
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'kwargs': dict(kwargs),
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}:
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ds: DisplayState = _dss[fqme]
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try:
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chart: ChartPlotWidget = {
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60: ds.hist_chart,
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1: ds.chart,
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}[timeframe]
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except KeyError:
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msg: str = (
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f'No chart for timeframe={timeframe}s, '
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f'skipping rect annotation'
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)
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log.exeception(msg)
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await annot_req_stream.send({'error': msg})
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continue
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cv: ChartView = chart.cv
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# NEW: if timestamps provided, lookup current indices
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# from shm to ensure alignment with current buffer
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# state
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start_time = kwargs.pop('start_time', None)
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end_time = kwargs.pop('end_time', None)
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if (
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start_time is not None
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and end_time is not None
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):
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viz: Viz = chart.get_viz(fqme)
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shm = viz.shm
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arr = shm.array
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# lookup start index
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start_matches = arr[arr['time'] == start_time]
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if len(start_matches) == 0:
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msg: str = (
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f'No shm entry for start_time={start_time}, '
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f'skipping rect'
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)
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log.error(msg)
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await annot_req_stream.send({'error': msg})
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continue
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# lookup end index
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end_matches = arr[arr['time'] == end_time]
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if len(end_matches) == 0:
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msg: str = (
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f'No shm entry for end_time={end_time}, '
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f'skipping rect'
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)
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log.error(msg)
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await annot_req_stream.send({'error': msg})
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continue
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# get close price from start bar, open from end
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# bar
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start_idx = float(start_matches[0]['index'])
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end_idx = float(end_matches[0]['index'])
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start_close = float(start_matches[0]['close'])
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end_open = float(end_matches[0]['open'])
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# reconstruct start_pos and end_pos with
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# looked-up indices
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from_idx: float = 0.16 - 0.06 # BGM offset
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kwargs['start_pos'] = (
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start_idx + 1 - from_idx,
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start_close,
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)
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kwargs['end_pos'] = (
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end_idx + from_idx,
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end_open,
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)
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# annot type lookup from cmd
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rect = SelectRect(
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viewbox=cv,
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# TODO: make this more dynamic?
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# -[ ] pull from conf.toml?
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# -[ ] add `.set_color()` method to type?
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# -[ ] make a green/red based on direction
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# instead of default static color?
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color=kwargs.pop('color', None),
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)
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# XXX NOTE: this is REQUIRED to set the rect
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# resize callback!
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rect.chart: ChartPlotWidget = chart
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# delegate generically to the requested method
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getattr(rect, meth)(**kwargs)
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rect.show()
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# XXX: store absolute coords for repositioning
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# during viz redraws (eg backfill updates)
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rect._meth = meth
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rect._kwargs = kwargs
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aid: int = id(rect)
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annots[aid] = rect
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aids: set[int] = ctxs[ipc_key][1]
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aids.add(aid)
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await annot_req_stream.send(aid)
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case {
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'cmd': 'ArrowEditor',
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'fqme': fqme,
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'timeframe': timeframe,
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'meth': 'add'|'remove' as meth,
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'kwargs': {
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'x': float(x),
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'y': float(y),
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'pointing': pointing,
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'color': color,
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'aid': str()|None as aid,
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'alpha': int(alpha),
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'headLen': int()|float()|None as headLen,
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'headWidth': int()|float()|None as headWidth,
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'tailLen': int()|float()|None as tailLen,
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'tailWidth': int()|float()|None as tailWidth,
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'pxMode': bool(pxMode),
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'time': int()|float()|None as timestamp,
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},
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# ?TODO? split based on method fn-sigs?
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# 'pointing',
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}:
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ds: DisplayState = _dss[fqme]
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try:
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chart: ChartPlotWidget = {
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60: ds.hist_chart,
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1: ds.chart,
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}[timeframe]
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except KeyError:
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log.warning(
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f'No chart for timeframe={timeframe}s, '
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f'skipping arrow annotation'
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)
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# return -1 to indicate failure
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await annot_req_stream.send(-1)
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continue
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cv: ChartView = chart.cv
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godw = chart.linked.godwidget
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# NEW: if timestamp provided, lookup current index
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# from shm to ensure alignment with current buffer
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# state
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if timestamp is not None:
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viz: Viz = chart.get_viz(fqme)
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shm = viz.shm
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arr = shm.array
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# find index where time matches timestamp
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matches = arr[arr['time'] == timestamp]
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if len(matches) == 0:
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log.error(
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f'No shm entry for timestamp={timestamp}, '
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f'skipping arrow annotation'
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)
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await annot_req_stream.send(-1)
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continue
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# use the matched row's index as x
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x = float(matches[0]['index'])
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arrows = ArrowEditor(godw=godw)
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# `.add/.remove()` API
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if meth != 'add':
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# await tractor.pause()
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raise ValueError(
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f'Invalid arrow-edit request ?\n'
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f'{msg!r}\n'
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)
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aid: str = str(uuid4())
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arrow: pg.ArrowItem = arrows.add(
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plot=chart.plotItem,
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uid=aid,
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x=x,
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y=y,
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pointing=pointing,
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color=color,
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alpha=alpha,
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headLen=headLen,
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headWidth=headWidth,
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tailLen=tailLen,
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tailWidth=tailWidth,
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pxMode=pxMode,
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)
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# XXX: store absolute coords for repositioning
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# during viz redraws (eg backfill updates)
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arrow._abs_x = x
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arrow._abs_y = y
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annots[aid] = arrow
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_editors[aid] = arrows
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aids: set[int] = ctxs[ipc_key][1]
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aids.add(aid)
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await annot_req_stream.send(aid)
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case {
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'cmd': 'TextItem',
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'fqme': fqme,
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'timeframe': timeframe,
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'kwargs': {
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'text': str(text),
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'x': int()|float() as x,
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'y': int()|float() as y,
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'color': color,
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'anchor': list(anchor),
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'font_size': int()|None as font_size,
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'time': int()|float()|None as timestamp,
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},
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}:
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ds: DisplayState = _dss[fqme]
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try:
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chart: ChartPlotWidget = {
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60: ds.hist_chart,
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1: ds.chart,
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}[timeframe]
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except KeyError:
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log.warning(
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f'No chart for timeframe={timeframe}s, '
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f'skipping text annotation'
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)
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await annot_req_stream.send(-1)
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continue
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# NEW: if timestamp provided, lookup current index
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# from shm to ensure alignment with current buffer
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# state
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if timestamp is not None:
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viz: Viz = chart.get_viz(fqme)
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shm = viz.shm
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arr = shm.array
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# find index where time matches timestamp
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matches = arr[arr['time'] == timestamp]
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if len(matches) == 0:
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log.error(
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f'No shm entry for timestamp={timestamp}, '
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f'skipping text annotation'
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)
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await annot_req_stream.send(-1)
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continue
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# use the matched row's index as x, +1 for text
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# offset
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x = float(matches[0]['index']) + 1
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# convert named color to hex
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color_hex: str = hcolor(color)
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# create text item
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text_item: pg.TextItem = pg.TextItem(
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text=text,
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color=color_hex,
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anchor=anchor,
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# ?TODO, pin to github:main for this?
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# legacy, can have scaling ish?
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# ensureInBounds=True,
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)
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# apply font size (default to DpiAwareFont if not
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# provided)
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if font_size is None:
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from ._style import get_fonts
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font, font_small = get_fonts()
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font_size = font_small.px_size - 1
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qfont: QFont = text_item.textItem.font()
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qfont.setPixelSize(font_size)
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text_item.setFont(qfont)
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text_item.setPos(x, y)
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chart.plotItem.addItem(text_item)
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# XXX: store absolute coords for repositioning
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# during viz redraws (eg backfill updates)
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text_item._abs_x = x
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text_item._abs_y = y
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aid: str = str(uuid4())
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annots[aid] = text_item
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aids: set[int] = ctxs[ipc_key][1]
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aids.add(aid)
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await annot_req_stream.send(aid)
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case {
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'cmd': 'remove',
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'aid': int(aid)|str(aid),
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}:
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# NOTE: this is normally entered on
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# a client's annotation de-alloc normally
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# prior to detach or modify.
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annot: QGraphicsItem = annots[aid]
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assert rm_annot(annot)
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# respond to client indicating annot
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# was indeed deleted.
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await annot_req_stream.send(aid)
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case {
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'cmd': 'redraw',
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'fqme': fqme,
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'timeframe': timeframe,
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# TODO: maybe more fields?
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# 'render': int(aid),
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# 'viz_name': str(viz_name),
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}:
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# NOTE: old match from the 60s display loop task
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# | {
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# 'backfilling': (str(viz_name), timeframe),
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# }:
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ds: DisplayState = _dss[fqme]
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viz: Viz = {
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60: ds.hist_viz,
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1: ds.viz,
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}[timeframe]
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log.warning(
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f'Forcing VIZ REDRAW:\n'
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f'fqme: {fqme}\n'
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f'timeframe: {timeframe}\n'
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)
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viz.reset_graphics()
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# XXX: reposition all annotations to ensure they
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# stay aligned with viz data after reset (eg during
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# backfill when abs-index range changes)
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n_repositioned: int = 0
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for aid, annot in annots.items():
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# arrows and text items use abs x,y coords
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if (
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hasattr(annot, '_abs_x')
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and
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hasattr(annot, '_abs_y')
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):
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annot.setPos(
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annot._abs_x,
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annot._abs_y,
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)
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n_repositioned += 1
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# rects use method + kwargs
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elif (
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hasattr(annot, '_meth')
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and
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hasattr(annot, '_kwargs')
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):
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getattr(annot, annot._meth)(**annot._kwargs)
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n_repositioned += 1
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if n_repositioned:
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log.info(
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f'Repositioned {n_repositioned} annotation(s) '
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f'after viz redraw'
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)
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case _:
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log.error(
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'Unknown remote annotation cmd:\n'
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f'{pformat(msg)}'
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)
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@tractor.context
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async def remote_annotate(
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ctx: Context,
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) -> None:
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global _dss, _ctxs
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if not _dss:
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raise RuntimeError(
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'Race condition on chart-init state ??\n'
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'Anoter actor is trying to annoate this chart '
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'before it has fully spawned.\n'
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)
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assert _dss
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_ctxs[ctx.cid] = (ctx, set())
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# send back full fqme symbology to caller
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await ctx.started(list(_dss))
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# open annot request handler stream
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async with ctx.open_stream() as annot_req_stream:
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try:
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await serve_rc_annots(
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ipc_key=ctx.cid,
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annot_req_stream=annot_req_stream,
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dss=_dss,
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ctxs=_ctxs,
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annots=_annots,
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)
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finally:
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# ensure all annots for this connection are deleted
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# on any final teardown
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(_ctx, aids) = _ctxs[ctx.cid]
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assert _ctx is ctx
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for aid in aids:
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annot: QGraphicsItem = _annots[aid]
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assert rm_annot(annot)
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class AnnotCtl(Struct):
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'''
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A control for remote "data annotations".
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You know those "squares they always show in machine vision
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UIs.." this API allows you to remotely control stuff like that
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in some other graphics actor.
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'''
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ctx2fqmes: dict[str, str]
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fqme2ipc: dict[str, MsgStream]
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_annot_stack: AsyncExitStack
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|
|
# runtime-populated mapping of all annotation
|
|
# ids to their equivalent IPC msg-streams.
|
|
_ipcs: dict[int, MsgStream] = {}
|
|
|
|
def _get_ipc(
|
|
self,
|
|
fqme: str,
|
|
) -> MsgStream:
|
|
ipc: MsgStream = self.fqme2ipc.get(fqme)
|
|
if ipc is None:
|
|
raise SymbolNotFound(
|
|
'No chart (actor) seems to have mkt feed loaded?\n'
|
|
f'{fqme}'
|
|
)
|
|
return ipc
|
|
|
|
async def add_rect(
|
|
self,
|
|
fqme: str,
|
|
timeframe: float,
|
|
start_pos: tuple[float, float],
|
|
end_pos: tuple[float, float],
|
|
|
|
# TODO: a `Literal['view', 'scene']` for this?
|
|
domain: str = 'view', # or 'scene'
|
|
color: str = 'dad_blue',
|
|
|
|
from_acm: bool = False,
|
|
|
|
# NEW: optional timestamps for server-side index lookup
|
|
start_time: float|None = None,
|
|
end_time: float|None = None,
|
|
|
|
) -> int|None:
|
|
'''
|
|
Add a `SelectRect` annotation to the target view, return
|
|
the instances `id(obj)` from the remote UI actor.
|
|
|
|
'''
|
|
ipc: MsgStream = self._get_ipc(fqme)
|
|
with trio.fail_after(3):
|
|
await ipc.send({
|
|
'fqme': fqme,
|
|
'cmd': 'SelectRect',
|
|
'timeframe': timeframe,
|
|
# 'meth': str(meth),
|
|
'meth': 'set_view_pos' if domain == 'view' else 'set_scene_pos',
|
|
'kwargs': {
|
|
'start_pos': tuple(start_pos),
|
|
'end_pos': tuple(end_pos),
|
|
'color': color,
|
|
'update_label': False,
|
|
'start_time': start_time,
|
|
'end_time': end_time,
|
|
},
|
|
})
|
|
aid: int|dict = await ipc.receive()
|
|
match aid:
|
|
case {'error': str(msg)}:
|
|
log.error(msg)
|
|
return None
|
|
self._ipcs[aid] = ipc
|
|
if not from_acm:
|
|
self._annot_stack.push_async_callback(
|
|
partial(
|
|
self.remove,
|
|
aid,
|
|
)
|
|
)
|
|
return aid
|
|
|
|
async def remove(
|
|
self,
|
|
aid: int,
|
|
|
|
) -> bool:
|
|
'''
|
|
Remove an existing annotation by instance id.
|
|
|
|
'''
|
|
ipc: MsgStream = self._ipcs[aid]
|
|
await ipc.send({
|
|
'cmd': 'remove',
|
|
'aid': aid,
|
|
})
|
|
removed: bool = await ipc.receive()
|
|
return removed
|
|
|
|
@acm
|
|
async def open_rect(
|
|
self,
|
|
**kwargs,
|
|
) -> int:
|
|
try:
|
|
aid: int = await self.add_rect(
|
|
from_acm=True,
|
|
**kwargs,
|
|
)
|
|
yield aid
|
|
finally:
|
|
# async ipc send op
|
|
with trio.CancelScope(shield=True):
|
|
await self.remove(aid)
|
|
|
|
async def redraw(
|
|
self,
|
|
fqme: str,
|
|
timeframe: float,
|
|
) -> None:
|
|
await self._get_ipc(fqme).send({
|
|
'cmd': 'redraw',
|
|
'fqme': fqme,
|
|
# 'render': int(aid),
|
|
# 'viz_name': str(viz_name),
|
|
'timeframe': timeframe,
|
|
})
|
|
|
|
async def add_arrow(
|
|
self,
|
|
fqme: str,
|
|
timeframe: float,
|
|
x: float,
|
|
y: float,
|
|
pointing: Literal[
|
|
'up',
|
|
'down',
|
|
],
|
|
# TODO: a `Literal['view', 'scene']` for this?
|
|
# domain: str = 'view', # or 'scene'
|
|
color: str = 'dad_blue',
|
|
alpha: int = 116,
|
|
headLen: float|None = None,
|
|
headWidth: float|None = None,
|
|
tailLen: float|None = None,
|
|
tailWidth: float|None = None,
|
|
pxMode: bool = True,
|
|
|
|
from_acm: bool = False,
|
|
|
|
# NEW: optional timestamp for server-side index lookup
|
|
time: float|None = None,
|
|
|
|
) -> int|None:
|
|
'''
|
|
Add a `SelectRect` annotation to the target view, return
|
|
the instances `id(obj)` from the remote UI actor.
|
|
|
|
'''
|
|
ipc: MsgStream = self._get_ipc(fqme)
|
|
with trio.fail_after(3):
|
|
await ipc.send({
|
|
'fqme': fqme,
|
|
'cmd': 'ArrowEditor',
|
|
'timeframe': timeframe,
|
|
# 'meth': str(meth),
|
|
'meth': 'add',
|
|
'kwargs': {
|
|
'x': float(x),
|
|
'y': float(y),
|
|
'color': color,
|
|
'pointing': pointing, # up|down
|
|
'alpha': alpha,
|
|
'aid': None,
|
|
'headLen': headLen,
|
|
'headWidth': headWidth,
|
|
'tailLen': tailLen,
|
|
'tailWidth': tailWidth,
|
|
'pxMode': pxMode,
|
|
'time': time, # for server-side index lookup
|
|
},
|
|
})
|
|
aid: int|dict = await ipc.receive()
|
|
match aid:
|
|
case {'error': str(msg)}:
|
|
log.error(msg)
|
|
return None
|
|
|
|
self._ipcs[aid] = ipc
|
|
if not from_acm:
|
|
self._annot_stack.push_async_callback(
|
|
partial(
|
|
self.remove,
|
|
aid,
|
|
)
|
|
)
|
|
return aid
|
|
|
|
async def add_text(
|
|
self,
|
|
fqme: str,
|
|
timeframe: float,
|
|
text: str,
|
|
x: float,
|
|
y: float,
|
|
color: str|tuple = 'dad_blue',
|
|
anchor: tuple[float, float] = (0, 1),
|
|
font_size: int|None = None,
|
|
|
|
from_acm: bool = False,
|
|
|
|
# NEW: optional timestamp for server-side index lookup
|
|
time: float|None = None,
|
|
|
|
) -> int|None:
|
|
'''
|
|
Add a `pg.TextItem` annotation to the target view.
|
|
|
|
anchor: (x, y) where (0,0) is upper-left, (1,1) is lower-right
|
|
font_size: pixel size for font, defaults to `_font.font.pixelSize()`
|
|
|
|
'''
|
|
ipc: MsgStream = self._get_ipc(fqme)
|
|
with trio.fail_after(3):
|
|
await ipc.send({
|
|
'fqme': fqme,
|
|
'cmd': 'TextItem',
|
|
'timeframe': timeframe,
|
|
'kwargs': {
|
|
'text': text,
|
|
'x': float(x),
|
|
'y': float(y),
|
|
'color': color,
|
|
'anchor': tuple(anchor),
|
|
'font_size': font_size,
|
|
'time': time, # for server-side index lookup
|
|
},
|
|
})
|
|
aid: int|dict = await ipc.receive()
|
|
match aid:
|
|
case {'error': str(msg)}:
|
|
log.error(msg)
|
|
return None
|
|
self._ipcs[aid] = ipc
|
|
if not from_acm:
|
|
self._annot_stack.push_async_callback(
|
|
partial(
|
|
self.remove,
|
|
aid,
|
|
)
|
|
)
|
|
return aid
|
|
|
|
|
|
@acm
|
|
async def open_annot_ctl(
|
|
uid: tuple[str, str] | None = None,
|
|
|
|
) -> AnnotCtl:
|
|
# TODO: load connetion to a specific chart actor
|
|
# -[ ] pull from either service scan or config
|
|
# -[ ] return some kinda client/proxy thinger?
|
|
# -[ ] maybe we should finally just provide this as
|
|
# a `tractor.hilevel.CallableProxy` or wtv?
|
|
# -[ ] use this from the storage.cli stuff to mark up gaps!
|
|
|
|
maybe_portals: list[Portal] | None
|
|
fqmes: list[str]
|
|
async with find_service(
|
|
service_name='chart',
|
|
first_only=False,
|
|
) as maybe_portals:
|
|
|
|
ctx_mngrs: list[AsyncContextManager] = []
|
|
|
|
# TODO: print the current discoverable actor UID set
|
|
# here as well?
|
|
if not maybe_portals:
|
|
raise RuntimeError(
|
|
'No chart actors found in service domain?'
|
|
)
|
|
|
|
for portal in maybe_portals:
|
|
ctx_mngrs.append(
|
|
portal.open_context(remote_annotate)
|
|
)
|
|
|
|
ctx2fqmes: dict[str, set[str]] = {}
|
|
fqme2ipc: dict[str, MsgStream] = {}
|
|
stream_ctxs: list[AsyncContextManager] = []
|
|
|
|
async with (
|
|
trionics.gather_contexts(ctx_mngrs) as ctxs,
|
|
):
|
|
for (ctx, fqmes) in ctxs:
|
|
stream_ctxs.append(ctx.open_stream())
|
|
|
|
# fill lookup table of mkt addrs to IPC ctxs
|
|
for fqme in fqmes:
|
|
if other := fqme2ipc.get(fqme):
|
|
raise ValueError(
|
|
f'More then one chart displays {fqme}!?\n'
|
|
'Other UI actor info:\n'
|
|
f'channel: {other._ctx.chan}]\n'
|
|
f'actor uid: {other._ctx.chan.uid}]\n'
|
|
f'ctx id: {other._ctx.cid}]\n'
|
|
)
|
|
|
|
ctx2fqmes.setdefault(
|
|
ctx.cid,
|
|
set(),
|
|
).add(fqme)
|
|
|
|
async with trionics.gather_contexts(stream_ctxs) as streams:
|
|
for stream in streams:
|
|
fqmes: set[str] = ctx2fqmes[stream._ctx.cid]
|
|
for fqme in fqmes:
|
|
fqme2ipc[fqme] = stream
|
|
|
|
# NOTE: on graceful teardown we always attempt to
|
|
# remove all annots that were created by the
|
|
# entering client.
|
|
# TODO: should we maybe instead/also do this on the
|
|
# server-actor side so that when a client
|
|
# disconnects we always delete all annotations by
|
|
# default instaead of expecting the client to?
|
|
async with AsyncExitStack() as annots_stack:
|
|
client = AnnotCtl(
|
|
ctx2fqmes=ctx2fqmes,
|
|
fqme2ipc=fqme2ipc,
|
|
_annot_stack=annots_stack,
|
|
)
|
|
yield client
|