feat(pricing): manage workspace member rates in edit flows

src/api/rates.ts

@@ -0,0 +1,107 @@
+import { authFetch } from "./client";
+
+export interface RateUser {
+  id: string;
+  first_name?: string;
+  last_name?: string;
+  mobile?: string;
+  profile_picture?: string;
+  avatar?: string;
+  name?: string;
+}
+
+export interface PriceUnit {
+  id: string;
+  code: string;
+  name: string;
+  local_name?: string;
+  symbol?: string;
+}
+
+export interface WorkspaceUserRate {
+  id: string;
+  workspace: string;
+  user: string;
+  user_details?: RateUser;
+  hourly_rate: string;
+  currency: string;
+  price_unit?: PriceUnit | null;
+  effective_from: string;
+}
+
+interface PaginatedResponse<T> {
+  count: number;
+  next: string | null;
+  previous: string | null;
+  results: T[];
+}
+
+const ensurePaginated = async <T>(response: Response): Promise<PaginatedResponse<T>> => {
+  if (!response.ok) {
+    const errorData = await response.json().catch(() => null);
+    throw new Error(errorData?.detail || errorData?.message || "Rate request failed");
+  }
+
+  const data = await response.json();
+  if (Array.isArray(data)) {
+    return { count: data.length, next: null, previous: null, results: data };
+  }
+  return {
+    count: data.count || data.results?.length || 0,
+    next: data.next || null,
+    previous: data.previous || null,
+    results: data.results || [],
+  };
+};
+
+export const getPriceUnits = async () => {
+  const response = await authFetch("/api/price-units/");
+  return ensurePaginated<PriceUnit>(response);
+};
+
+export const getWorkspaceUserRates = async (workspaceId: string) => {
+  const response = await authFetch(`/api/workspace-user-rates/?workspace=${workspaceId}`);
+  return ensurePaginated<WorkspaceUserRate>(response);
+};
+
+export const createWorkspaceUserRate = async (data: {
+  workspace_id: string;
+  user_id: string;
+  hourly_rate: string;
+  currency: string;
+}) => {
+  const response = await authFetch("/api/workspace-user-rates/", {
+    method: "POST",
+    body: JSON.stringify(data),
+  });
+  if (!response.ok) {
+    const errorData = await response.json().catch(() => null);
+    throw new Error(errorData?.detail || errorData?.message || "Failed to save workspace user rate");
+  }
+  return response.json() as Promise<WorkspaceUserRate>;
+};
+
+export const updateWorkspaceUserRate = async (
+  rateId: string,
+  data: Partial<Pick<WorkspaceUserRate, "hourly_rate" | "currency">>,
+) => {
+  const response = await authFetch(`/api/workspace-user-rates/${rateId}/`, {
+    method: "PATCH",
+    body: JSON.stringify(data),
+  });
+  if (!response.ok) {
+    const errorData = await response.json().catch(() => null);
+    throw new Error(errorData?.detail || errorData?.message || "Failed to update workspace user rate");
+  }
+  return response.json() as Promise<WorkspaceUserRate>;
+};
+
+export const deleteWorkspaceUserRate = async (rateId: string) => {
+  const response = await authFetch(`/api/workspace-user-rates/${rateId}/`, {
+    method: "DELETE",
+  });
+  if (!response.ok) {
+    const errorData = await response.json().catch(() => null);
+    throw new Error(errorData?.detail || errorData?.message || "Failed to delete workspace user rate");
+  }
+};