import React, {
  useState,
  useEffect,
  useRef,
  useReducer,
  useMemo,
  createContext,
  useCallback,
} from "react";
import { View, AppState } from "react-native";
import * as SplashScreen from "expo-splash-screen";
import HomeTab from "./screeens/HomeTab";
import Login from "./screeens/Login";
import StreamerProfile from "./screeens/StreamerProfile";
import UserProfile from "./screeens/UserProfile";
import { createNativeStackNavigator } from "@react-navigation/native-stack";
import { NavigationContainer, DefaultTheme } from "@react-navigation/native";
import { SafeAreaProvider } from "react-native-safe-area-context";
import { TailwindProvider } from "tailwind-rn";
import utilities from "./tailwind.json";
import ForgetPassword from "./screeens/Login/ForgetPassword";
import SetPassword from "./screeens/Login/SetPassword";
import Toast from "react-native-toast-message";
import loginReducer from "./utils/loginReducer";
import MessageDetail from "./screeens/Messages/MessageDetail";
import EditUserProfile from "./screeens/EditUserProfile";
import Wallet from "./screeens/Wallet";
import UnlockedWechat from "./screeens/UnlockedWechat";
import EditStreamerProfile from "./screeens/EditStreamerProfile";
import Relationship from "./screeens/Relationship";
import StreamerVerification from "./screeens/StreamerVerification";
import EditPlatformOrder from "./screeens/EditPlatformOrder";
import StreamerInviteUser from "./screeens/StreamerInviteUser";
import Setting from "./screeens/Setting";
import WechatWaitingToAdd from "./screeens/WechatWaitingToAdd";
import Search from "./screeens/Search";
import WebWithHeader from "./screeens/WebWithHeader";
import UpdateModal from "./components/UpdateModal";
import StreamerNavigatorModal from "./components/StreamerNavigatorModal";
import { Icon } from "@rneui/themed";
import { StatusBar } from "expo-status-bar";
import { save, get, remove, storeAppInfo } from "./utils/storeInfo";
import baseRequest from "./utils/baseRequest";
import { generateSignature } from "./utils/crypto";
import * as Clipboard from "expo-clipboard";

const RootStack = createNativeStackNavigator();

export const AuthContext = createContext("");

SplashScreen.preventAutoHideAsync();

export default function App() {
  //app主题
  const MyTheme = {
    ...DefaultTheme,
    colors: {
      ...DefaultTheme.colors,
      background: "#07050A",
    },
  };

  //保存用户剪贴板内容
  const [inviterCode, setInviterCode] = useState();

  //获取环境变量
  const apiUrl = process.env.EXPO_PUBLIC_API_URL;
  //登录逻辑
  const [state, dispatch] = useReducer(loginReducer, {
    isSignin: false,
    userToken: null,
  });
  const authContext = useMemo(
    () => ({
      signIn: async (data, mobilePhone, regionCode) => {
        await save("token", data.data.token);
        await save("account", data.data.account);
        await save("mobile_phone", mobilePhone);
        await save("region_code", regionCode);
        dispatch({ type: "SIGN_IN", token: data.data.token });
      },
      signOut: async () => {
        const base = await baseRequest();
        const account = await get("account");
        const signature = await generateSignature({
          mid: account?.mid,
          ...base,
        });
        try {
          await fetch(`${apiUrl}/api/login/logout?signature=${signature}`, {
            method: "POST",
            headers: {
              "Content-Type": "application/json",
            },
            body: JSON.stringify({
              mid: account?.mid,
              ...base,
            }),
          });
          await remove("token");
          await remove("account");
        } catch (error) {
          console.error(error);
        } finally {
          dispatch({ type: "SIGN_OUT" });
        }
      },
      inviterCode: inviterCode,
    }),
    [inviterCode]
  );
  //控制开屏图片出现
  const [appIsReady, setAppIsReady] = useState(false);
  //控制更新弹窗出现
  const [isUpdateModalVisible, setIsUpdateModalVisible] = useState(false);
  //保存最新版本信息
  const [versionData, setVersionData] = useState({});
  useEffect(() => {
    async function prepare() {
      await storeAppInfo();
      try {
        const token = await get("token");
        const account = await get("account");
        const base = await baseRequest();
        const signature = await generateSignature({
          ...base,
        });
        if (token && account) {
          const response = await fetch(
            `${apiUrl}/api/login/validate?signature=${signature}`,
            {
              method: "POST",
              headers: {
                "Content-Type": "application/json",
              },
              body: JSON.stringify({
                ...base,
              }),
            }
          );
          const data = await response.json();
          if (data.ret === 1) {
            dispatch({ type: "SIGN_IN", token: token });
          }
        }
        //检查更新
        const checkUpdataResponse = await fetch(
          `${apiUrl}/api/version/is_there_a_new_version_available?signature=${signature}`,
          {
            method: "POST",
            headers: {
              "Content-Type": "application/json",
            },
            body: JSON.stringify({
              ...base,
            }),
          }
        );
        const checkUpdataData = await checkUpdataResponse.json();
        if (checkUpdataData.ret === -1) {
          return;
        }
        if (checkUpdataData.data.result) {
          setIsUpdateModalVisible(true);
          setVersionData(checkUpdataData.data);
        }
      } catch (e) {
        console.warn(e);
      } finally {
        setAppIsReady(true);
      }
    }
    prepare();
  }, []);

  //获取用户剪贴板内容
  const getClipboardContent = useCallback(async () => {
    const content = await Clipboard.getStringAsync();
    const pattern = /https:\/\/tiefen\.fun\/(\d+)/;
    const match = content.match(pattern);
    if (match && match[1]) {
      const intInviterCode = parseInt(match[1], 10);
      setInviterCode(intInviterCode);
      await Clipboard.setStringAsync("");
      return;
    }
    setInviterCode(null);
  }, []);

  //当用户未登录时，获取剪贴板内容，用于绑定邀请人
  useEffect(() => {
    if (state.isSignin) return;
    getClipboardContent();
  }, []);

  //每次从后台切换到前台时，获取用户剪贴板内容
  const appState = useRef(AppState.currentState);
  useEffect(() => {
    if (!state.isSignin) return;
    const subscription = AppState.addEventListener("change", (nextAppState) => {
      if (
        appState.current.match(/inactive|background/) &&
        nextAppState === "active"
      ) {
        getClipboardContent();
      }
      appState.current = nextAppState;
    });

    return () => {
      subscription.remove();
    };
  }, [state.isSignin]);

  //当用户已经登录，查看根据剪贴板内容展示主播Modal
  const [streamerNavigatorModalStatus, setStreamerNavigatorModalStatus] =
    useState({
      open: false,
      data: {},
    });
  useEffect(() => {
    const getInviterData = async () => {
      //获取主播数据
      if (!inviterCode) return;
      if (!state.isSignin) return;
      if (isUpdateModalVisible) return;
      try {
        const base = await baseRequest();
        const signature = await generateSignature({
          user_id: inviterCode,
          ...base,
        });
        const inviterResponse = await fetch(
          `${apiUrl}/api/streamer/list_ext_by_user_id?signature=${signature}`,
          {
            method: "POST",
            headers: {
              "Content-Type": "application/json",
            },
            body: JSON.stringify({
              user_id: inviterCode,
              ...base,
            }),
          }
        );
        const inviterData = await inviterResponse.json();
        if (inviterData.ret === -1) {
          return;
        }
        setStreamerNavigatorModalStatus({
          open: true,
          data: inviterData.data.streamer_ext,
        });
      } catch (e) {
        console.warn(e);
      }
    };
    getInviterData();
  }, [state.isSignin, inviterCode, isUpdateModalVisible]);

  //展示和隐藏splash
  const onLayoutRootView = useCallback(async () => {
    if (appIsReady) {
      await SplashScreen.hideAsync();
    }
  }, [appIsReady]);

  if (!appIsReady) {
    return null;
  }

  return (
    <TailwindProvider utilities={utilities}>
      <AuthContext.Provider value={authContext}>
        <SafeAreaProvider>
          <StatusBar style="light" translucent />
          <View style={{ flex: 1, backgroundColor: "#07050A" }}>
            <NavigationContainer onReady={onLayoutRootView} theme={MyTheme}>
              <RootStack.Navigator>
                {state.isSignin ? (
                  <>
                    <RootStack.Screen
                      name="HomeTab"
                      component={HomeTab}
                      options={{
                        headerShown: false,
                      }}
                    />
                    <RootStack.Screen
                      name="StreamerProfile"
                      component={StreamerProfile}
                      options={({ navigation }) => ({
                        headerLeft: () => (
                          <Icon
                            type="ionicon"
                            name="chevron-back"
                            size={32}
                            color="white"
                            onPress={() => navigation.goBack()}
                          />
                        ),
                        headerRight: () => (
                          <Icon
                            type="ionicon"
                            name="ellipsis-vertical"
                            size={32}
                            color="white"
                          />
                        ),
                        headerTransparent: true,
                        title: "",
                      })}
                    />
                    <RootStack.Screen
                      name="UserProfile"
                      component={UserProfile}
                      options={({ navigation }) => ({
                        headerLeft: () => (
                          <Icon
                            type="ionicon"
                            name="chevron-back"
                            size={32}
                            color="white"
                            onPress={() => navigation.goBack()}
                          />
                        ),
                        headerTransparent: true,
                        title: "",
                      })}
                    />
                    <RootStack.Screen
                      name="WechatWaitingToAdd"
                      component={WechatWaitingToAdd}
                      options={({ navigation }) => ({
                        headerLeft: () => (
                          <Icon
                            type="ionicon"
                            name="chevron-back"
                            size={32}
                            color="white"
                            onPress={() => navigation.goBack()}
                          />
                        ),
                        title: "待添加微信",
                        headerTitleStyle: { color: "white" },
                        headerStyle: { backgroundColor: "#07050A" },
                      })}
                    />
                    <RootStack.Screen
                      name="MessageDetail"
                      component={MessageDetail}
                      options={({ navigation }) => ({
                        headerLeft: () => (
                          <Icon
                            type="ionicon"
                            name="chevron-back"
                            size={32}
                            color="white"
                            onPress={() => navigation.goBack()}
                          />
                        ),
                        title: "",
                        headerTitleStyle: { color: "white" },
                        headerStyle: { backgroundColor: "#07050A" },
                      })}
                    />
                    <RootStack.Screen
                      name="EditUserProfile"
                      component={EditUserProfile}
                      options={{ headerShown: false }}
                    />
                    <RootStack.Screen
                      name="Wallet"
                      component={Wallet}
                      options={({ navigation }) => ({
                        headerLeft: () => (
                          <Icon
                            type="ionicon"
                            name="chevron-back"
                            size={32}
                            color="white"
                            onPress={() => navigation.goBack()}
                          />
                        ),
                        headerTransparent: true,
                        title: "我的钱包",
                        headerTitleStyle: { color: "white" },
                      })}
                    />
                    <RootStack.Screen
                      name="Setting"
                      component={Setting}
                      options={{ headerShown: false }}
                    />
                    <RootStack.Screen
                      name="Relationship"
                      component={Relationship}
                      options={({ navigation }) => ({
                        headerLeft: () => (
                          <Icon
                            type="ionicon"
                            name="chevron-back"
                            size={32}
                            color="white"
                            onPress={() => navigation.goBack()}
                          />
                        ),
                        title: "关系",
                        headerTitleStyle: { color: "white" },
                        headerStyle: { backgroundColor: "#07050A" },
                      })}
                    />
                    <RootStack.Screen
                      name="StreamerVerification"
                      component={StreamerVerification}
                      options={{ headerShown: false }}
                    />
                    <RootStack.Screen
                      name="UnlockedWechat"
                      component={UnlockedWechat}
                      options={({ navigation }) => ({
                        headerLeft: () => (
                          <Icon
                            type="ionicon"
                            name="chevron-back"
                            size={32}
                            color="white"
                            onPress={() => navigation.goBack()}
                          />
                        ),
                        title: "已解锁微信",
                        headerTitleStyle: { color: "white" },
                        headerStyle: { backgroundColor: "#07050A" },
                      })}
                    />
                    <RootStack.Screen
                      name="EditStreamerProfile"
                      component={EditStreamerProfile}
                      options={({ navigation }) => ({
                        headerLeft: () => (
                          <Icon
                            type="ionicon"
                            name="chevron-back"
                            size={32}
                            color="white"
                            onPress={() => navigation.goBack()}
                          />
                        ),
                        title: "编辑主页",
                        headerTitleStyle: { color: "white" },
                        headerStyle: { backgroundColor: "#07050A" },
                      })}
                    />
                    <RootStack.Screen
                      name="EditPlatformOrder"
                      component={EditPlatformOrder}
                      options={({ navigation }) => ({
                        headerLeft: () => (
                          <Icon
                            type="ionicon"
                            name="chevron-back"
                            size={32}
                            color="white"
                            onPress={() => navigation.goBack()}
                          />
                        ),
                        title: "编辑平台",
                        headerTitleStyle: { color: "white" },
                        headerStyle: { backgroundColor: "#07050A" },
                      })}
                    />
                    <RootStack.Screen
                      name="StreamerInviteUser"
                      component={StreamerInviteUser}
                      options={({ navigation }) => ({
                        headerLeft: () => (
                          <Icon
                            type="ionicon"
                            name="chevron-back"
                            size={32}
                            color="white"
                            onPress={() => navigation.goBack()}
                          />
                        ),
                        title: "邀请分成",
                        headerTitleStyle: { color: "white" },
                        headerStyle: { backgroundColor: "#07050A" },
                      })}
                    />
                    <RootStack.Screen
                      name="Search"
                      component={Search}
                      options={{ headerShown: false }}
                    />
                    <RootStack.Screen
                      name="WebWithHeader"
                      component={WebWithHeader}
                      options={({ navigation }) => ({
                        headerLeft: () => (
                          <Icon
                            type="ionicon"
                            name="chevron-back"
                            size={32}
                            color="white"
                            onPress={() => navigation.goBack()}
                          />
                        ),
                        headerTitleStyle: { color: "white" },
                        headerStyle: { backgroundColor: "#07050A" },
                      })}
                    />
                  </>
                ) : (
                  <>
                    <RootStack.Screen
                      name="Login"
                      component={Login}
                      options={{ headerShown: false }}
                    />
                    <RootStack.Screen
                      name="ForgetPassword"
                      component={ForgetPassword}
                      options={{ headerShown: false }}
                    />
                    <RootStack.Screen
                      name="SetPassword"
                      component={SetPassword}
                      options={{ headerShown: false }}
                    />
                    <RootStack.Screen
                      name="WebWithHeader"
                      component={WebWithHeader}
                      options={({ navigation }) => ({
                        headerLeft: () => (
                          <Icon
                            type="ionicon"
                            name="chevron-back"
                            size={32}
                            color="white"
                            onPress={() => navigation.goBack()}
                          />
                        ),
                        headerTitleStyle: { color: "white" },
                        headerStyle: { backgroundColor: "#07050A" },
                      })}
                    />
                  </>
                )}
              </RootStack.Navigator>
              <StreamerNavigatorModal
                status={streamerNavigatorModalStatus}
                setStatus={setStreamerNavigatorModalStatus}
              />
            </NavigationContainer>
          </View>
          <Toast />
          <UpdateModal
            visible={isUpdateModalVisible}
            setVisible={setIsUpdateModalVisible}
            data={versionData}
          />
        </SafeAreaProvider>
      </AuthContext.Provider>
    </TailwindProvider>
  );
}