// Shared numeric formatters for inspector and report views.
//
// Engine wire-format for floats is `Fixed3` quantised
// (pkg/model/report/report.go). The UI renders them as a fixed 3-decimal
// string with neither thousand separators nor locale-aware grouping —
// values stay column-aligned across rows and never reflow when the locale
// switches mid-session. Integer counts (planet count, ship `count`) are
// rendered with zero fractional digits to match their wire shape
// (uint16 / uint64). The convention mirrors the calculator-tab view
// (`useGrouping: false`, 3 decimals) so inspector and report tables read
// the same way as the calculator panel.

/**
 * formatFloat renders an engine-emitted `Float` with three fractional
 * digits and no thousand separators. Used for tech levels, stockpiles,
 * coordinates, range, mass, votes — every report payload that is not
 * an integer count or a `[0, 1]` fraction.
 */
export function formatFloat(value: number): string {
	return value.toFixed(3);
}

/**
 * formatInt renders an integer-ish count (planet count, ship count,
 * etc.) with zero fractional digits and no thousand separators.
 */
export function formatInt(value: number): string {
	return value.toFixed(0);
}

/**
 * formatPercent renders a `[0, 1]` fraction as a one-decimal percent
 * without a `%` suffix — the column header carries the unit. 0.1 %
 * precision (the third decimal of the underlying float) matches the
 * project-wide "three decimal digits" convention used elsewhere by
 * `formatFloat`.
 */
export function formatPercent(fraction: number): string {
	return (fraction * 100).toFixed(1);
}
