Use server prices for text billing estimates

src/api/publicPricingClient.ts

@@ -0,0 +1,141 @@
+import { isOptionalApiRouteMissing } from "./apiErrorUtils";
+import { isRecord, serverRequest } from "./serverConnection";
+
+export interface PublicModelPrice {
+  id?: number | string;
+  modelKey: string;
+  displayName?: string;
+  category?: string;
+  pricingType?: string;
+  inputPriceMills: number | null;
+  outputPriceMills: number | null;
+  flatPriceMills: number | null;
+  currency: string;
+  enabled: boolean;
+  createdAt?: string;
+  updatedAt?: string;
+}
+
+function readString(
+  record: Record<string, unknown>,
+  keys: string[],
+): string | undefined {
+  for (const key of keys) {
+    const value = record[key];
+    if (typeof value === "string" && value.trim()) return value.trim();
+  }
+  return undefined;
+}
+
+function readNumber(
+  record: Record<string, unknown>,
+  keys: string[],
+): number | null {
+  for (const key of keys) {
+    const value = record[key];
+    const parsed =
+      typeof value === "number"
+        ? value
+        : typeof value === "string"
+          ? Number(value)
+          : NaN;
+    if (Number.isFinite(parsed)) return parsed;
+  }
+  return null;
+}
+
+function readBoolean(
+  record: Record<string, unknown>,
+  keys: string[],
+  fallback: boolean,
+): boolean {
+  for (const key of keys) {
+    const value = record[key];
+    if (typeof value === "boolean") return value;
+    if (typeof value === "number") return value !== 0;
+    if (typeof value === "string") {
+      const normalized = value.trim().toLowerCase();
+      if (["1", "true", "yes", "enabled"].includes(normalized)) return true;
+      if (["0", "false", "no", "disabled"].includes(normalized)) return false;
+    }
+  }
+  return fallback;
+}
+
+export function normalizePublicModelPrice(
+  raw: unknown,
+): PublicModelPrice | null {
+  if (!isRecord(raw)) return null;
+
+  const modelKey = readString(raw, ["modelKey", "model_key", "key", "model"]);
+  if (!modelKey) return null;
+
+  const displayName = readString(raw, ["displayName", "display_name", "name"]);
+  const category = readString(raw, ["category", "type"]);
+  const pricingType = readString(raw, ["pricingType", "pricing_type"]);
+  const currency = readString(raw, ["currency"]) || "CNY";
+  const createdAt = readString(raw, ["createdAt", "created_at"]);
+  const updatedAt = readString(raw, ["updatedAt", "updated_at"]);
+  const idValue = raw.id;
+
+  return {
+    id:
+      typeof idValue === "number" || typeof idValue === "string"
+        ? idValue
+        : undefined,
+    modelKey,
+    displayName,
+    category,
+    pricingType,
+    inputPriceMills: readNumber(raw, ["inputPriceMills", "input_price_mills"]),
+    outputPriceMills: readNumber(raw, [
+      "outputPriceMills",
+      "output_price_mills",
+    ]),
+    flatPriceMills: readNumber(raw, ["flatPriceMills", "flat_price_mills"]),
+    currency,
+    enabled: readBoolean(raw, ["enabled", "is_enabled"], true),
+    createdAt,
+    updatedAt,
+  };
+}
+
+export function normalizePublicModelPrices(
+  payload: unknown,
+): PublicModelPrice[] {
+  const rawPrices = Array.isArray(payload)
+    ? payload
+    : isRecord(payload) && Array.isArray(payload.prices)
+      ? payload.prices
+      : isRecord(payload) && Array.isArray(payload.models)
+        ? payload.models
+        : [];
+
+  return rawPrices
+    .map((item) => normalizePublicModelPrice(item))
+    .filter((item): item is PublicModelPrice => Boolean(item));
+}
+
+let cachedPrices: PublicModelPrice[] | null = null;
+let pricesRouteMissing = false;
+
+export const publicPricingClient = {
+  async getPrices(): Promise<PublicModelPrice[]> {
+    if (cachedPrices) return cachedPrices;
+    if (pricesRouteMissing) return [];
+
+    try {
+      const payload = await serverRequest<unknown>("prices", {
+        fallbackMessage: "Model prices request failed",
+      });
+      cachedPrices = normalizePublicModelPrices(payload);
+      return cachedPrices;
+    } catch (error) {
+      if (isOptionalApiRouteMissing(error)) {
+        pricesRouteMissing = true;
+        return [];
+      }
+      throw error;
+    }
+  },
+};