Thanh Quy - wolf
30 lines
1.1 KiB
TypeScript
30 lines
1.1 KiB
TypeScript
// ─── Analytics Helper Utilities ───────────────────────────────────────────────
|
|
|
|
/**
|
|
* Format a number as a short Vietnamese currency string.
|
|
* e.g. 1_500_000 → "1.5 tr", 25_000 → "25 k"
|
|
*/
|
|
export function formatCurrency(value: number): string {
|
|
if (value >= 1_000_000_000) return (value / 1_000_000_000).toFixed(1) + " tỷ";
|
|
if (value >= 1_000_000) return (value / 1_000_000).toFixed(1) + " tr";
|
|
if (value >= 1_000) return (value / 1_000).toFixed(0) + " k";
|
|
return value.toLocaleString("vi-VN") + "đ";
|
|
}
|
|
|
|
/**
|
|
* Format a number as a full Vietnamese currency string.
|
|
* e.g. 25_000 → "25.000đ"
|
|
*/
|
|
export function formatCurrencyFull(value: number): string {
|
|
return value.toLocaleString("vi-VN") + "đ";
|
|
}
|
|
|
|
/**
|
|
* Calculate period-over-period change between two values.
|
|
*/
|
|
export function calcChange(current: number, previous: number) {
|
|
const change = current - previous;
|
|
const changePercent = previous === 0 ? 0 : (change / previous) * 100;
|
|
return { change, changePercent, isPositive: change >= 0 };
|
|
}
|