feat(freight-backoffice): rework settings pages for the per-currency API

exchangeSettings.service/hook/card follow the backend's new shape: a
single ExchangeSettings object becomes a list, get() becomes list(),
and setFallbackRate(rate) becomes setFallbackRate(currency, rate).
ExchangeRateSettingsCard now renders one row per currency instead of
one hardcoded USD->ETB form.

manualPaymentSettings.service/hook/card add djfEnabled alongside
etb/usdEnabled, matching the backend's new column.

InvoicesPage's collected-summary KPI strip adds a DJF tile and folds
its ETB-equivalent into the existing 'Total collected' conversion,
reading each currency's rate from the now-list-shaped settings query.

Claude-Session: https://claude.ai/code/session_01CZy77vCWhka3pnmVF9NDkL

apps/edr-freight-web/backoffice/src/hooks/useExchangeSettings.ts

@@ -7,10 +7,11 @@ import { useErrorHandler } from "@/shared/hooks/useErrorHandler";
 
 const QUERY_KEY = ["exchangeSettings"];
 
+/** One row per foreign currency (USD, DJF, …) — see `exchangeSettingsService.list`. */
 export const useExchangeSettingsQuery = () =>
   useQuery({
     queryKey: QUERY_KEY,
-    queryFn: () => exchangeSettingsService.get(),
+    queryFn: () => exchangeSettingsService.list(),
     // Feed health is only interesting while it is being looked at.
     staleTime: 30_000,
     refetchOnWindowFocus: true,
@@ -22,7 +23,8 @@ export const useSetExchangeFallbackRate = () => {
   const { handleError } = useErrorHandler(t);
 
   return useMutation({
-    mutationFn: (rate: number) => exchangeSettingsService.setFallbackRate(rate),
+    mutationFn: ({ currency, rate }: { currency: string; rate: number }) =>
+      exchangeSettingsService.setFallbackRate(currency, rate),
     onSuccess: () => {
       queryClient.invalidateQueries({ queryKey: QUERY_KEY });
       toast.success(

apps/edr-freight-web/backoffice/src/hooks/useManualPaymentSettings.ts

@@ -24,7 +24,9 @@ export const useUpdateManualPaymentSettings = () => {
 
   return useMutation({
     mutationFn: (
-      patch: Partial<Pick<ManualPaymentSettings, "etbEnabled" | "usdEnabled">>,
+      patch: Partial<
+        Pick<ManualPaymentSettings, "etbEnabled" | "usdEnabled" | "djfEnabled">
+      >,
     ) => manualPaymentSettingsService.update(patch),
     onSuccess: (data) => {
       queryClient.setQueryData(MANUAL_PAYMENT_SETTINGS_KEY, data);

apps/edr-freight-web/backoffice/src/pages/invoices/InvoicesPage.tsx

@@ -66,6 +66,7 @@ const INVOICE_FILTER_DEFS: FilterDef[] = [
     options: [
       { value: "ETB", label: "ETB" },
       { value: "USD", label: "USD" },
+      { value: "DJF", label: "DJF" },
     ],
   },
   {
@@ -235,8 +236,23 @@ export default function InvoicesPanel() {
   const { data: exchangeSettings } = useExchangeSettingsQuery();
   const etbCollected = summary?.ETB ?? 0;
   const usdCollected = summary?.USD ?? 0;
-  const rate = exchangeSettings?.feed?.rate ?? exchangeSettings?.fallbackRate;
-  const etbFromUsd = rate ? usdCollected * rate : null;
+  const djfCollected = summary?.DJF ?? 0;
+  const rateFor = (currency: string) => {
+    const setting = exchangeSettings?.find((s) => s.currency === currency);
+    return setting?.feed?.rate ?? setting?.fallbackRate ?? null;
+  };
+  const usdRate = rateFor("USD");
+  const djfRate = rateFor("DJF");
+  const etbFromUsd = usdRate ? usdCollected * usdRate : null;
+  const etbFromDjf = djfRate ? djfCollected * djfRate : null;
+  const totalEtb = etbCollected + (etbFromUsd ?? 0) + (etbFromDjf ?? 0);
+  const totalHint = [
+    "ETB",
+    etbFromUsd !== null ? "USD" : null,
+    etbFromDjf !== null ? "DJF" : null,
+  ]
+    .filter(Boolean)
+    .join(" + ");
 
   const columns: ColumnDef<Invoice>[] = useMemo(
     () => [
@@ -356,8 +372,8 @@ export default function InvoicesPanel() {
         items={[
           {
             label: "Total collected",
-            hint: etbFromUsd !== null ? "ETB + USD" : "ETB only",
-            value: formatMoney(etbCollected + (etbFromUsd ?? 0), "ETB"),
+            hint: totalHint,
+            value: formatMoney(totalEtb, "ETB"),
             icon: CircleDollarSign,
             color: "edr-green",
           },
@@ -373,6 +389,12 @@ export default function InvoicesPanel() {
             icon: Landmark,
             color: "violet",
           },
+          {
+            label: "Collected in DJF",
+            value: formatMoney(djfCollected, "DJF"),
+            icon: Landmark,
+            color: "orange",
+          },
         ]}
       />
 

apps/edr-freight-web/backoffice/src/pages/settings/ExchangeRateSettingsCard.tsx

@@ -14,7 +14,10 @@ import {
   useExchangeSettingsQuery,
   useSetExchangeFallbackRate,
 } from "@/hooks/useExchangeSettings";
-import type { ExchangeRateSource } from "@/services/exchangeSettings.service";
+import type {
+  ExchangeRateSource,
+  ExchangeSetting,
+} from "@/services/exchangeSettings.service";
 import { formatDateTime } from "@/lib/format";
 
 /** Feed health, phrased for an operator rather than a developer. */
@@ -38,40 +41,121 @@ function feedLabel(source: ExchangeRateSource | null): {
 const formatTime = (value: string | null) =>
   value ? formatDateTime(value) : "never";
 
-/**
- * USD→ETB fallback used when the CBE exchange-rate endpoint is unreachable.
- * The live CBE rate always wins; every successful fetch overwrites the stored
- * value, so it tracks the last known good rate on its own. Editing here is for
- * a prolonged outage — the next successful CBE fetch replaces it.
- */
-export default function ExchangeRateSettingsCard() {
-  const { data, isLoading, refetch, isFetching } = useExchangeSettingsQuery();
+/** One currency's fallback row — its own draft, its own save. */
+function ExchangeRateRow({
+  setting,
+  disabled,
+}: {
+  setting: ExchangeSetting;
+  disabled: boolean;
+}) {
   const setRate = useSetExchangeFallbackRate();
   const [draft, setDraft] = useState<string>("");
 
-  const value = draft !== "" ? draft : (data?.fallbackRate?.toString() ?? "");
+  const value = draft !== "" ? draft : (setting.fallbackRate?.toString() ?? "");
   const parsed = Number(value);
-  const invalid = !Number.isFinite(parsed) || parsed < 1 || parsed > 10_000;
-  const dirty = draft !== "" && parsed !== data?.fallbackRate;
+  const invalid = !Number.isFinite(parsed) || parsed <= 0;
+  const dirty = draft !== "" && parsed !== setting.fallbackRate;
 
-  const feed = feedLabel(data?.feed?.source ?? null);
+  const feed = feedLabel(setting.feed?.source ?? null);
 
   const handleSave = async () => {
     if (invalid) return;
-    await setRate.mutateAsync(parsed);
+    await setRate.mutateAsync({ currency: setting.currency, rate: parsed });
     setDraft("");
   };
 
+  return (
+    <div className="space-y-3 border-t pt-4 first:border-t-0 first:pt-0">
+      <div
+        className={`flex items-start gap-2 rounded-md border p-3 text-sm ${
+          feed.live
+            ? "border-green-200 bg-green-50 text-green-900 dark:border-green-900 dark:bg-green-950 dark:text-green-100"
+            : "border-amber-200 bg-amber-50 text-amber-900 dark:border-amber-900 dark:bg-amber-950 dark:text-amber-100"
+        }`}
+      >
+        {feed.live ? (
+          <CheckCircle2 className="mt-0.5 h-4 w-4 shrink-0" />
+        ) : (
+          <AlertTriangle className="mt-0.5 h-4 w-4 shrink-0" />
+        )}
+        <div className="space-y-1">
+          <p className="font-medium">
+            {setting.currency} → ETB — {feed.text}
+          </p>
+          {setting.feed?.rate != null && (
+            <p>
+              Rate in use: {setting.feed.rate} ETB per {setting.currency}
+            </p>
+          )}
+          <p className="opacity-80">
+            Last successful update: {formatTime(setting.feed?.lastSuccessAt ?? null)}
+          </p>
+          {setting.feed?.lastError && (
+            <p className="opacity-80">Last error: {setting.feed.lastError}</p>
+          )}
+        </div>
+      </div>
+
+      <div className="space-y-2">
+        <label
+          className="text-sm font-medium"
+          htmlFor={`fallback-rate-${setting.currency}`}
+        >
+          Fallback rate (ETB per {setting.currency})
+        </label>
+        <div className="flex items-center gap-2">
+          <Input
+            id={`fallback-rate-${setting.currency}`}
+            type="number"
+            step="0.0001"
+            min={0}
+            className="max-w-[220px]"
+            disabled={disabled}
+            value={value}
+            onChange={(e) => setDraft(e.target.value)}
+          />
+          <Button
+            onClick={handleSave}
+            disabled={!dirty || invalid || setRate.isPending}
+          >
+            <Save className="mr-2 h-4 w-4" />
+            Save
+          </Button>
+        </div>
+        {invalid && draft !== "" && (
+          <p className="text-sm text-red-600">Enter a rate greater than 0.</p>
+        )}
+        <p className="text-sm text-muted-foreground">
+          {setting.fallbackSource === "MANUAL"
+            ? "Set manually. The next successful CBE update will replace it."
+            : `Synced automatically from CBE (${formatTime(setting.lastSyncedAt)}).`}
+        </p>
+      </div>
+    </div>
+  );
+}
+
+/**
+ * X→ETB fallback used when the CBE exchange-rate endpoint is unreachable for
+ * that currency — one row per foreign currency (USD, DJF). The live CBE rate
+ * always wins; every successful fetch overwrites the stored value, so it
+ * tracks the last known good rate on its own. Editing here is for a
+ * prolonged outage — the next successful CBE fetch replaces it.
+ */
+export default function ExchangeRateSettingsCard() {
+  const { data, isLoading, refetch, isFetching } = useExchangeSettingsQuery();
+
   return (
     <Card className="shadow-lg border-gray-200 dark:border-gray-700">
       <CardHeader>
         <div className="flex items-start justify-between gap-4">
           <div>
-            <CardTitle>Exchange rate (USD → ETB)</CardTitle>
+            <CardTitle>Exchange rates (→ ETB)</CardTitle>
             <CardDescription>
-              Rates come from the Commercial Bank of Ethiopia. The fallback
-              below is used only when CBE cannot be reached, and is refreshed
-              automatically after every successful update.
+              Rates come from the Commercial Bank of Ethiopia. Each fallback
+              below is used only when CBE cannot be reached for that currency,
+              and is refreshed automatically after every successful update.
             </CardDescription>
           </div>
           <Button
@@ -88,69 +172,13 @@ export default function ExchangeRateSettingsCard() {
       </CardHeader>
 
       <CardContent className="space-y-4">
-        <div
-          className={`flex items-start gap-2 rounded-md border p-3 text-sm ${
-            feed.live
-              ? "border-green-200 bg-green-50 text-green-900 dark:border-green-900 dark:bg-green-950 dark:text-green-100"
-              : "border-amber-200 bg-amber-50 text-amber-900 dark:border-amber-900 dark:bg-amber-950 dark:text-amber-100"
-          }`}
-        >
-          {feed.live ? (
-            <CheckCircle2 className="mt-0.5 h-4 w-4 shrink-0" />
-          ) : (
-            <AlertTriangle className="mt-0.5 h-4 w-4 shrink-0" />
-          )}
-          <div className="space-y-1">
-            <p className="font-medium">{feed.text}</p>
-            {data?.feed?.rate != null && (
-              <p>Rate in use: {data.feed.rate} ETB per USD</p>
-            )}
-            <p className="opacity-80">
-              Last successful update: {formatTime(data?.feed?.lastSuccessAt ?? null)}
-            </p>
-            {data?.feed?.lastError && (
-              <p className="opacity-80">Last error: {data.feed.lastError}</p>
-            )}
-          </div>
-        </div>
-
-        <div className="space-y-2">
-          <label className="text-sm font-medium" htmlFor="fallback-rate">
-            Fallback rate (ETB per USD)
-          </label>
-          <div className="flex items-center gap-2">
-            <Input
-              id="fallback-rate"
-              type="number"
-              step="0.0001"
-              min={1}
-              max={10000}
-              className="max-w-[220px]"
-              disabled={isLoading}
-              value={value}
-              onChange={(e) => setDraft(e.target.value)}
-            />
-            <Button
-              onClick={handleSave}
-              disabled={!dirty || invalid || setRate.isPending}
-            >
-              <Save className="mr-2 h-4 w-4" />
-              Save
-            </Button>
-          </div>
-          {invalid && draft !== "" && (
-            <p className="text-sm text-red-600">
-              Enter a rate between 1 and 10,000.
-            </p>
-          )}
-          <p className="text-sm text-muted-foreground">
-            {data?.fallbackSource === "MANUAL"
-              ? "Set manually. The next successful CBE update will replace it."
-              : `Synced automatically from CBE (${formatTime(
-                  data?.lastSyncedAt ?? null,
-                )}).`}
-          </p>
-        </div>
+        {(data ?? []).map((setting) => (
+          <ExchangeRateRow
+            key={setting.currency}
+            setting={setting}
+            disabled={isLoading}
+          />
+        ))}
       </CardContent>
     </Card>
   );

apps/edr-freight-web/backoffice/src/pages/settings/ManualPaymentSettingsCard.tsx

@@ -17,11 +17,11 @@ import {
   useUpdateManualPaymentSettings,
 } from "@/hooks/useManualPaymentSettings";
 
-type Currency = "ETB" | "USD";
+type Currency = "ETB" | "USD" | "DJF";
 
 const CURRENCIES: {
   code: Currency;
-  field: "etbEnabled" | "usdEnabled";
+  field: "etbEnabled" | "usdEnabled" | "djfEnabled";
   icon: typeof Banknote;
   title: string;
   description: string;
@@ -42,6 +42,14 @@ const CURRENCIES: {
     description:
       "USD invoices are paid by bank transfer and have no online channel. Switching this off leaves USD customers with no way to be marked as paid.",
   },
+  {
+    code: "DJF",
+    field: "djfEnabled",
+    icon: Landmark,
+    title: "Djibouti Franc (DJF) invoices",
+    description:
+      "DJF invoices can be paid online (Waafi / CAC Bank) or by bank transfer. Switch this off if Finance should stop accepting DJF payments by hand.",
+  },
 ];
 
 /**
@@ -60,7 +68,9 @@ export default function ManualPaymentSettingsCard() {
   const { data, isLoading } = useManualPaymentSettingsQuery();
   const update = useUpdateManualPaymentSettings();
 
-  const noneEnabled = Boolean(data && !data.etbEnabled && !data.usdEnabled);
+  const noneEnabled = Boolean(
+    data && !data.etbEnabled && !data.usdEnabled && !data.djfEnabled,
+  );
 
   return (
     <Card className="shadow-lg border-gray-200 dark:border-gray-700">
@@ -79,7 +89,7 @@ export default function ManualPaymentSettingsCard() {
           <div className="flex items-start gap-2 rounded-md border border-amber-200 bg-amber-50 p-3 text-sm text-amber-900 dark:border-amber-900 dark:bg-amber-950 dark:text-amber-100">
             <AlertTriangle className="mt-0.5 h-4 w-4 shrink-0" />
             <p>
-              Both currencies are off — the Manual Payments list is empty and
+              Every currency is off — the Manual Payments list is empty and
               Finance cannot settle any invoice by hand.
             </p>
           </div>

apps/edr-freight-web/backoffice/src/services/exchangeSettings.service.ts

@@ -11,7 +11,7 @@ const BASE = URL_CONSTANTS.EXCHANGE_SETTINGS.BASE;
  */
 export type ExchangeRateSource = "live" | "stored";
 
-/** Health of the CBE exchange-rate feed. */
+/** Health of the CBE exchange-rate feed for one currency. */
 export interface ExchangeFeedStatus {
   rate: number | null;
   source: ExchangeRateSource | null;
@@ -19,25 +19,31 @@ export interface ExchangeFeedStatus {
   lastError: string | null;
 }
 
-export interface ExchangeSettings {
-  fallbackRate: number;
-  /** `AUTO` when synced from CBE, `MANUAL` when set here. */
-  fallbackSource: "AUTO" | "MANUAL";
+/** One currency's X→ETB fallback settings — the API returns one per foreign currency. */
+export interface ExchangeSetting {
+  currency: string;
+  fallbackRate: number | null;
+  /** `AUTO` when synced from CBE, `MANUAL` when set here. `null` before the row exists. */
+  fallbackSource: "AUTO" | "MANUAL" | null;
   lastSyncedAt: string | null;
   updatedById: string | null;
   feed?: ExchangeFeedStatus;
 }
 
 export const exchangeSettingsService = {
-  get: async (): Promise<ExchangeSettings> => {
-    const response = await client.get<ApiResponse<ExchangeSettings>>(BASE);
+  list: async (): Promise<ExchangeSetting[]> => {
+    const response = await client.get<ApiResponse<ExchangeSetting[]>>(BASE);
     return unwrap(response.data);
   },
 
-  setFallbackRate: async (fallbackRate: number): Promise<ExchangeSettings> => {
-    const response = await client.patch<ApiResponse<ExchangeSettings>>(BASE, {
-      fallbackRate,
-    });
+  setFallbackRate: async (
+    currency: string,
+    fallbackRate: number,
+  ): Promise<ExchangeSetting> => {
+    const response = await client.patch<ApiResponse<ExchangeSetting>>(
+      `${BASE}/${currency}`,
+      { fallbackRate },
+    );
     return unwrap(response.data);
   },
 };

apps/edr-freight-web/backoffice/src/services/manualPaymentSettings.service.ts

@@ -13,6 +13,7 @@ const BASE = URL_CONSTANTS.MANUAL_PAYMENT_SETTINGS.BASE;
 export interface ManualPaymentSettings {
   etbEnabled: boolean;
   usdEnabled: boolean;
+  djfEnabled: boolean;
   updatedById: string | null;
   updatedAt?: string;
 }
@@ -25,7 +26,9 @@ export const manualPaymentSettingsService = {
 
   /** Partial: an omitted currency keeps its current setting. */
   update: async (
-    patch: Partial<Pick<ManualPaymentSettings, "etbEnabled" | "usdEnabled">>,
+    patch: Partial<
+      Pick<ManualPaymentSettings, "etbEnabled" | "usdEnabled" | "djfEnabled">
+    >,
   ): Promise<ManualPaymentSettings> => {
     const response = await client.patch<ApiResponse<ManualPaymentSettings>>(
       BASE,