Andrew Charlwood
75 lines
3.0 KiB
Python
75 lines
3.0 KiB
Python
"""Callbacks for the drug browser drawer: open/close, drug selection, fragment matching, clear."""
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from dash import Input, Output, State, ctx, no_update, ALL
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def register_drawer_callbacks(app):
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"""Register drawer-related callbacks."""
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@app.callback(
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Output("drug-drawer", "opened"),
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Input("sidebar-drug-selection", "n_clicks"),
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Input("sidebar-indications", "n_clicks"),
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Input("sidebar-trust-selection", "n_clicks"),
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prevent_initial_call=True,
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)
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def open_drawer(_drug_clicks, _indication_clicks, _trust_clicks):
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"""Open the drawer when sidebar Drug Selection, Indications, or Trust Selection is clicked."""
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return True
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@app.callback(
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Output("all-drugs-chips", "value"),
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Output("trust-chips", "value"),
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Input({"type": "drug-fragment", "index": ALL}, "n_clicks"),
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Input("clear-drug-filters", "n_clicks"),
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State("all-drugs-chips", "value"),
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State("reference-data", "data"),
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prevent_initial_call=True,
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)
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def handle_fragment_or_clear(fragment_clicks, _clear_clicks, current_chips, ref_data):
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"""Handle drug fragment badge click (substring match) or clear all filters.
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Fragment click: find all full drug names containing the fragment substring,
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toggle them in the chip selection. Trust chips unchanged.
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Clear click: reset both drug and trust chip selections.
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"""
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triggered = ctx.triggered_id
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# Clear button — reset both drug and trust chips
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if triggered == "clear-drug-filters":
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return [], []
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# Fragment badge click — triggered_id is a dict like {"type": "drug-fragment", "index": "DIR|FRAG"}
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if isinstance(triggered, dict) and triggered.get("type") == "drug-fragment":
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# Check if any fragment was actually clicked (not just initial render)
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if not any(n for n in (fragment_clicks or []) if n):
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return no_update, no_update
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fragment_key = triggered["index"] # e.g. "CARDIOLOGY|ABCIXIMAB"
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fragment = fragment_key.split("|", 1)[-1] if "|" in fragment_key else fragment_key
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# Get all available drugs from reference data
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all_drugs = (ref_data or {}).get("available_drugs", [])
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# Find drugs whose names contain this fragment (case-insensitive substring)
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matching_drugs = [
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drug for drug in all_drugs
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if fragment.upper() in drug.upper()
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]
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if not matching_drugs:
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return no_update, no_update
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# Toggle: if all matching drugs are already selected, deselect them;
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# otherwise, add them to selection
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current = set(current_chips or [])
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all_selected = all(d in current for d in matching_drugs)
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if all_selected:
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updated = current - set(matching_drugs)
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else:
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updated = current | set(matching_drugs)
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return sorted(updated), no_update
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return no_update, no_update
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