Module adapters 

Turn view projections into chart specs. Adapters are pure functions that handle top-N clipping, multi-currency scaling decisions, and layout choices (x-axis assignment, series arrangement) so renderers only have to draw.

Structs

ActivityChartOpts

BalanceChartOpts

BreakdownChartOpts

Enums

SortOrder

Sort key applied to a ranked set of rows. Shared by the balance adapter and (via the web handler) the balance table rendering — keeping them on one enum means the chart can’t drift from the table ordering.

Functions

activity_chart

Activity chart: x = period label, one series per group label, plus an optional Net series. Picks a single commodity when multiple are present and notes the omission.

balance_chart

Balance chart: one series per commodity, x = top-level account names. When more than one commodity is present and the top_n most-active accounts span several commodities, we still render all bars — each series places a bar in the x-slot for its account and zero elsewhere, so a mixed-currency report reads as a grouped / stacked bar chart.

breakdown_chart

Breakdown chart. Two shapes depending on whether the breakdown has period grouping: