Andrew Charlwood
11b5cc5b81
Remove KPI card row, add 3 inline fraction KPIs to header bar: filtered/total patients, drugs, cost. Breadcrumb removed. KPI callback refactored for 6 output IDs (3 filtered + 3 total). total_cost added to load_initial_data() reference data.
61 lines
2.4 KiB
Python
61 lines
2.4 KiB
Python
"""Callback for updating fraction KPI values in the header bar."""
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from dash import Input, Output, no_update
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def _format_cost(cost):
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"""Format cost as £X.XM or £X.XK."""
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if cost >= 1_000_000:
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return f"\u00a3{cost / 1_000_000:.1f}M"
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if cost >= 1_000:
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return f"\u00a3{cost / 1_000:.1f}K"
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return f"\u00a3{cost:.0f}"
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def register_kpi_callbacks(app):
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"""Register header KPI update callbacks."""
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@app.callback(
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# Filtered values (numerators)
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Output("kpi-filtered-patients", "children"),
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Output("kpi-filtered-drugs", "children"),
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Output("kpi-filtered-cost", "children"),
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# Total values (denominators)
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Output("kpi-total-patients", "children"),
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Output("kpi-total-drugs", "children"),
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Output("kpi-total-cost", "children"),
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Input("chart-data", "data"),
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Input("reference-data", "data"),
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)
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def update_header_kpis(chart_data, ref_data):
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"""Update header fraction KPIs from chart-data (filtered) and reference-data (totals)."""
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# Filtered values from chart-data
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if chart_data:
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patients = chart_data.get("unique_patients", 0)
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drugs = chart_data.get("total_drugs", 0)
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cost = chart_data.get("total_cost", 0.0)
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filtered_patients = f"{patients:,}" if patients else "\u2014"
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filtered_drugs = str(drugs) if drugs else "\u2014"
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filtered_cost = _format_cost(cost) if cost else "\u2014"
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else:
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filtered_patients = "\u2014"
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filtered_drugs = "\u2014"
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filtered_cost = "\u2014"
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# Total values from reference-data
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if ref_data:
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total_patients_val = ref_data.get("total_patients", 0)
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total_drugs_val = len(ref_data.get("available_drugs", []))
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total_cost_val = ref_data.get("total_cost", 0.0)
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total_patients = f"{total_patients_val:,}" if total_patients_val else "\u2014"
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total_drugs = str(total_drugs_val) if total_drugs_val else "\u2014"
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total_cost = _format_cost(total_cost_val) if total_cost_val else "\u2014"
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else:
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total_patients = "\u2014"
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total_drugs = "\u2014"
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total_cost = "\u2014"
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return (
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filtered_patients, filtered_drugs, filtered_cost,
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total_patients, total_drugs, total_cost,
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)
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