Initial Mento CRM: portal OTP, reports, SMS, and deploy for crm.montzar.ir.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/api/src/common/currency.ts

@@ -0,0 +1,54 @@
+import { CURRENCY_CATALOG } from '@mento/shared';
+import { Prisma } from '@prisma/client';
+import { PrismaService } from '../prisma/prisma.service';
+
+export type RateMap = {
+  baseCurrency: string;
+  /** currency code → how many base units for 1 unit of that currency */
+  rates: Map<string, number>;
+};
+
+export function isKnownCurrency(code: string): boolean {
+  return CURRENCY_CATALOG.some((c) => c.code === code);
+}
+
+export async function loadOrgRates(
+  prisma: PrismaService,
+  organizationId: string,
+): Promise<RateMap> {
+  const org = await prisma.organization.findUnique({
+    where: { id: organizationId },
+    select: {
+      baseCurrency: true,
+      exchangeRates: { select: { currency: true, rateToBase: true } },
+    },
+  });
+  const baseCurrency = org?.baseCurrency || 'IRR';
+  const rates = new Map<string, number>();
+  rates.set(baseCurrency, 1);
+  for (const row of org?.exchangeRates ?? []) {
+    rates.set(row.currency, Number(row.rateToBase));
+  }
+  return { baseCurrency, rates };
+}
+
+export function toBaseAmount(
+  amount: number | null | undefined,
+  currency: string | null | undefined,
+  map: RateMap,
+): number {
+  if (amount == null || Number.isNaN(amount)) return 0;
+  const code = (currency || map.baseCurrency).trim() || map.baseCurrency;
+  if (code === map.baseCurrency) return amount;
+  const rate = map.rates.get(code);
+  if (rate == null || rate <= 0) return amount;
+  return amount * rate;
+}
+
+export function decimalToBase(
+  amount: Prisma.Decimal | null | undefined,
+  currency: string | null | undefined,
+  map: RateMap,
+): number {
+  return toBaseAmount(amount == null ? 0 : Number(amount), currency, map);
+}