Phase 0.4: split hooks.ts into separate API modules

frontend/src/api/auth.ts

@@ -0,0 +1,95 @@
+/**
+ * Authentication hooks: login, logout, current user, password reset, tenant switching.
+ */
+
+import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
+import { apiPost, apiGet, setCsrfToken } from './client';
+import { useAuthStore } from '@/store/authStore';
+
+export interface LoginPayload {
+  email: string;
+  password: string;
+}
+
+export interface PasswordResetRequestPayload {
+  email: string;
+}
+
+export interface PasswordResetConfirmPayload {
+  token: string;
+  password: string;
+}
+
+export function useLogin() {
+  const { setUser, setError } = useAuthStore();
+  return useMutation({
+    mutationFn: (payload: LoginPayload) =>
+      apiPost('/auth/login', payload),
+    onSuccess: (data: any) => {
+      setUser(data.user || data);
+      setError(null);
+      // Store CSRF token for subsequent unsafe requests
+      if (data.csrf_token) {
+        setCsrfToken(data.csrf_token);
+      }
+    },
+    onError: (error: any) => {
+      setError(error.message || 'Login failed');
+    },
+  });
+}
+
+export function useLogout() {
+  const { logout } = useAuthStore();
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: () => apiPost('/auth/logout'),
+    onSettled: () => {
+      logout();
+      setCsrfToken(null);
+      queryClient.clear();
+    },
+  });
+}
+
+export function useCurrentUser() {
+  const { setUser, setAuthenticated } = useAuthStore();
+  return useQuery({
+    queryKey: ['currentUser'],
+    queryFn: async () => {
+      const data = await apiGet<any>('/auth/me');
+      setUser(data.user || data);
+      setAuthenticated(true);
+      return data;
+    },
+    retry: false,
+    staleTime: 5 * 60 * 1000,
+  });
+}
+
+export function usePasswordResetRequest() {
+  return useMutation({
+    mutationFn: (payload: PasswordResetRequestPayload) =>
+      apiPost('/auth/password-reset/request', payload),
+  });
+}
+
+export function usePasswordResetConfirm() {
+  return useMutation({
+    mutationFn: (payload: PasswordResetConfirmPayload) =>
+      apiPost('/auth/password-reset/confirm', payload),
+  });
+}
+
+export function useSwitchTenant() {
+  const { setTenant } = useAuthStore();
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: (tenantId: string) =>
+      apiPost('/auth/switch-tenant', { tenant_id: tenantId }),
+    onSuccess: (data: any) => {
+      setTenant(data.tenant || data);
+      queryClient.invalidateQueries();
+    },
+  });
+}