feat: quick connect

fixes #16

app/login.tsx

@@ -3,10 +3,9 @@ import { Input } from "@/components/common/Input";
 import { Text } from "@/components/common/Text";
 import { apiAtom, useJellyfin } from "@/providers/JellyfinProvider";
 import { Ionicons } from "@expo/vector-icons";
-import { AxiosError } from "axios";
 import { useLocalSearchParams } from "expo-router";
 import { useAtom } from "jotai";
-import React, { useEffect, useMemo, useState } from "react";
+import React, { useEffect, useState } from "react";
 import {
   Alert,
   KeyboardAvoidingView,
@@ -22,7 +21,8 @@ const CredentialsSchema = z.object({
 });
 
 const Login: React.FC = () => {
-  const { setServer, login, removeServer } = useJellyfin();
+  const { setServer, login, removeServer, initiateQuickConnect } =
+    useJellyfin();
   const [api] = useAtom(apiAtom);
   const params = useLocalSearchParams();
 
@@ -87,6 +87,21 @@ const Login: React.FC = () => {
     setServer({ address: url.trim() });
   };
 
+  const handleQuickConnect = async () => {
+    try {
+      const code = await initiateQuickConnect();
+      if (code) {
+        Alert.alert("Quick Connect", `Enter code ${code} to login`, [
+          {
+            text: "Got It",
+          },
+        ]);
+      }
+    } catch (error) {
+      Alert.alert("Error", "Failed to initiate Quick Connect");
+    }
+  };
+
   if (api?.basePath) {
     return (
       <SafeAreaView style={{ flex: 1 }}>
@@ -162,13 +177,18 @@ const Login: React.FC = () => {
               <Text className="text-red-600 mb-2">{error}</Text>
             </View>
 
-            <Button
-              onPress={handleLogin}
-              loading={loading}
-              className="mt-auto mb-2"
-            >
-              Log in
-            </Button>
+            <View className="mt-auto mb-2">
+              <Button
+                color="black"
+                onPress={handleQuickConnect}
+                className="mb-2"
+              >
+                Use Quick Connect
+              </Button>
+              <Button onPress={handleLogin} loading={loading}>
+                Log in
+              </Button>
+            </View>
           </View>
         </KeyboardAvoidingView>
       </SafeAreaView>

hooks/useInterval.ts

@@ -0,0 +1,19 @@
+import { useEffect, useRef } from "react";
+
+export function useInterval(callback: () => void, delay: number | null) {
+  const savedCallback = useRef<() => void>();
+
+  useEffect(() => {
+    savedCallback.current = callback;
+  }, [callback]);
+
+  useEffect(() => {
+    function tick() {
+      savedCallback.current?.();
+    }
+    if (delay !== null) {
+      const id = setInterval(tick, delay);
+      return () => clearInterval(id);
+    }
+  }, [delay]);
+}

providers/JellyfinProvider.tsx

@@ -1,15 +1,18 @@
+import { useInterval } from "@/hooks/useInterval";
 import { Api, Jellyfin } from "@jellyfin/sdk";
 import { UserDto } from "@jellyfin/sdk/lib/generated-client/models";
 import AsyncStorage from "@react-native-async-storage/async-storage";
 import { useMutation, useQuery } from "@tanstack/react-query";
-import axios from "axios";
+import axios, { AxiosError } from "axios";
 import { router, useSegments } from "expo-router";
 import { atom, useAtom } from "jotai";
 import React, {
   createContext,
   ReactNode,
+  useCallback,
   useContext,
   useEffect,
+  useMemo,
   useState,
 } from "react";
 import { Platform } from "react-native";
@@ -29,6 +32,7 @@ interface JellyfinContextValue {
   removeServer: () => void;
   login: (username: string, password: string) => Promise<void>;
   logout: () => Promise<void>;
+  initiateQuickConnect: () => Promise<string | undefined>;
 }
 
 const JellyfinContext = createContext<JellyfinContextValue | undefined>(
@@ -51,7 +55,6 @@ export const JellyfinProvider: React.FC<{ children: ReactNode }> = ({
 }) => {
   const [jellyfin, setJellyfin] = useState<Jellyfin | undefined>(undefined);
   const [deviceId, setDeviceId] = useState<string | undefined>(undefined);
-  const [isConnected, setIsConnected] = useState<boolean>(false);
 
   useEffect(() => {
     (async () => {
@@ -69,6 +72,88 @@ export const JellyfinProvider: React.FC<{ children: ReactNode }> = ({
 
   const [api, setApi] = useAtom(apiAtom);
   const [user, setUser] = useAtom(userAtom);
+  const [isPolling, setIsPolling] = useState<boolean>(false);
+  const [secret, setSecret] = useState<string | null>(null);
+
+  const headers = useMemo(() => {
+    if (!deviceId) return {};
+    return {
+      authorization: `MediaBrowser Client="Streamyfin", Device=${
+        Platform.OS === "android" ? "Android" : "iOS"
+      }, DeviceId="${deviceId}", Version="0.8.4"`,
+    };
+  }, [deviceId]);
+
+  const initiateQuickConnect = useCallback(async () => {
+    if (!api || !deviceId) return;
+    try {
+      const response = await api.axiosInstance.post(
+        api.basePath + "/QuickConnect/Initiate",
+        null,
+        {
+          headers,
+        }
+      );
+      if (response?.status === 200) {
+        setSecret(response?.data?.Secret);
+        setIsPolling(true);
+        console.log("Initiating quick connect");
+        return response.data?.Code;
+      } else {
+        throw new Error("Failed to initiate quick connect");
+      }
+    } catch (error) {
+      console.error(error);
+      throw error;
+    }
+  }, [api, deviceId, headers]);
+
+  const pollQuickConnect = useCallback(async () => {
+    if (!api || !secret) return;
+
+    try {
+      const response = await api.axiosInstance.get(
+        `${api.basePath}/QuickConnect/Connect?Secret=${secret}`
+      );
+
+      console.log("Polling quick connect");
+      if (response.status === 200) {
+        if (response.data.Authenticated) {
+          setIsPolling(false);
+
+          const authResponse = await api.axiosInstance.post(
+            api.basePath + "/Users/AuthenticateWithQuickConnect",
+            {
+              secret,
+            },
+            {
+              headers,
+            }
+          );
+
+          const { AccessToken, User } = authResponse.data;
+          api.accessToken = AccessToken;
+          console.log("Quick connect authenticated", AccessToken, User.Id);
+          setUser(User);
+          await AsyncStorage.setItem("token", AccessToken);
+          await AsyncStorage.setItem("user", JSON.stringify(User));
+          return true;
+        }
+      }
+      return false;
+    } catch (error) {
+      if (error instanceof AxiosError && error.response?.status === 400) {
+        setIsPolling(false);
+        setSecret(null);
+        throw new Error("The code has expired. Please try again.");
+      } else {
+        console.error("Error polling Quick Connect:", error);
+        throw error;
+      }
+    }
+  }, [api, secret, headers]);
+
+  useInterval(pollQuickConnect, isPolling ? 1000 : null);
 
   const discoverServers = async (url: string): Promise<Server[]> => {
     const servers = await jellyfin?.discovery.getRecommendedServerCandidates(
@@ -199,6 +284,7 @@ export const JellyfinProvider: React.FC<{ children: ReactNode }> = ({
     login: (username, password) =>
       loginMutation.mutateAsync({ username, password }),
     logout: () => logoutMutation.mutateAsync(),
+    initiateQuickConnect,
   };
 
   useProtectedRoute(user, isLoading || isFetching);