nicolium: move more stuff around

Signed-off-by: nicole mikołajczyk <git@mkljczk.pl>

packages/nicolium/src/queries/instance/use-remote-instance.ts

@@ -0,0 +1,76 @@
+import { useQueryClient } from '@tanstack/react-query';
+
+import { useAdminConfig } from '@/queries/admin/use-config';
+import { queryKeys } from '@/queries/keys';
+import { useInstance } from '@/stores/instance';
+import { getDomain } from '@/utils/accounts';
+import ConfigDB from '@/utils/config-db';
+
+import type { MRFSimple } from '@/schemas/pleroma';
+import type { Account } from 'pl-api';
+
+type HostFederation = {
+  [key in keyof MRFSimple]: boolean;
+};
+
+interface RemoteInstance {
+  host: string;
+  favicon: string | null;
+  federation: HostFederation;
+}
+
+const useSimplePolicy = () => {
+  const { data: config } = useAdminConfig();
+  const simplePolicy = useInstance().pleroma.metadata.federation.mrf_simple_info;
+
+  return {
+    ...simplePolicy,
+    ...ConfigDB.toSimplePolicy(config?.configs || []),
+  };
+};
+
+const useRemoteInstanceFederation = (host: string) => {
+  const simplePolicy = useSimplePolicy();
+
+  return Object.fromEntries(
+    Object.entries(simplePolicy).map(([key, hosts]) => [
+      key,
+      hosts.some((entry) => entry[0] === host),
+    ]),
+  ) as HostFederation;
+};
+
+const useRemoteInstanceFavicon = (host: string) => {
+  const queryClient = useQueryClient();
+
+  return (
+    queryClient
+      .getQueriesData<Account>({ queryKey: queryKeys.accounts.root })
+      .map(([, account]) => account)
+      .find(
+        (account): account is Account =>
+          typeof account?.id === 'string' && getDomain(account) === host,
+      )?.favicon ?? null
+  );
+};
+
+const useRemoteInstance = (host: string) => {
+  const federation = useRemoteInstanceFederation(host);
+  const favicon = useRemoteInstanceFavicon(host);
+
+  return {
+    host,
+    favicon,
+    federation,
+  };
+};
+
+const useHosts = () => {
+  const simplePolicy = useSimplePolicy();
+
+  return [
+    ...new Set(Object.values(simplePolicy).reduce((acc, hosts) => (acc.push(...hosts), acc), [])),
+  ].toSorted();
+};
+
+export { type RemoteInstance, useHosts, useRemoteInstance };