import AsyncStorage from "@react-native-async-storage/async-storage";
import * as Google from "expo-auth-session/providers/google";
import React, { createContext, useEffect, useState } from "react";
import { googleApi, loginApi, registerApi } from "../service/user";
import { revokeAsync } from "expo-auth-session";

export const AuthContext = createContext();

export const AuthProvider = ({ children }) => {
  const [userInfo, setUserInfo] = useState({});
  const [isLoading, setIsLoading] = useState(false);

  // Google Auth
  const [request, response, promptAsync] = Google.useAuthRequest({
    androidClientId:
      "1032296921439-dpgvgkss3ggds0egvo6puf0r7un9em6c.apps.googleusercontent.com",
    iosClientId:
      "1032296921439-j7jfahhm7q3l07aj04qvdblmcns77oul.apps.googleusercontent.com",
    expoClientId:
      "1032296921439-vfs9k28sn7kei4nft998ck3067m8ksiq.apps.googleusercontent.com",
  });

  useEffect(() => {
    if (response?.type === "success") {
      googleApi(response.authentication.accessToken)
        .then((res) => {
          if (res.user) {
            setUserInfo(res);
            AsyncStorage.setItem("userInfo", JSON.stringify(res));
            setIsLoading(false);
          } else {
            callback(res);
            setIsLoading(false);
          }
        })
        .catch((e) => {
          console.log("error", e);
          setIsLoading(false);
        });
    }
  }, [response]);

  const login = (email, password, callback) => {
    setIsLoading(true);
    loginApi({ identifier: email, password })
      .then((res) => {
        if (res.user) {
          setUserInfo(res);
          AsyncStorage.setItem("userInfo", JSON.stringify(res));
          AsyncStorage.setItem("jwt-token", res.jwt);
          setIsLoading(false);
        } else {
          callback(res);
          setIsLoading(false);
        }
      })
      .catch((e) => {
        console.log("error", e);
        setIsLoading(false);
      });
  };

  const googleAuth = () => {
    promptAsync({ useProxy: true, showInRecents: true });
  };

  const register = (username, email, password, callback) => {
    setIsLoading(true);
    registerApi({ username, email, password })
      .then((res) => {
        if (res.user) {
          setUserInfo(res);
          AsyncStorage.setItem("userInfo", JSON.stringify(res));
          AsyncStorage.setItem("jwt-token", res.jwt);
          setIsLoading(false);
        } else {
          callback(res);
          setIsLoading(false);
        }
      })
      .catch((e) => {
        console.log("error", e);
        setIsLoading(false);
      });
  };

  const logout = async () => {
    setIsLoading(true);
    AsyncStorage.removeItem("userInfo");
    AsyncStorage.removeItem("jwt-token");
    setUserInfo({});

    if (userInfo.user.provider === "google") {
      await revokeAsync(
        { token: response.authentication.accessToken },
        { revocationEndpoint: "https://oauth2.googleapis.com/revoke" }
      );
    }
    setIsLoading(false);
  };

  const isLoggedIn = async () => {
    try {
      let userInfo = await AsyncStorage.getItem("userInfo");
      userInfo = JSON.parse(userInfo);

      if (userInfo) {
        setUserInfo(userInfo);
      }
    } catch (e) {
      console.log(e);
    }
  };

  useEffect(() => {
    isLoggedIn();
  }, []);

  return (
    <AuthContext.Provider
      value={{ isLoading, login, logout, userInfo, register, googleAuth }}
    >
      {children}
    </AuthContext.Provider>
  );
};