import "react-native-gesture-handler";
import { StatusBar } from "expo-status-bar";
import { Text, View } from "react-native";
import { createDrawerNavigator } from "@react-navigation/drawer";
import { DefaultTheme, NavigationContainer } from "@react-navigation/native";
import SideBar from "./src/Components/SideBar";
import {
  AppContext,
  AppProvider,
  AppStyles,
  Constants,
  GetDataFromList,
  GetMultipleData,
  IsPlatformIos,
} from "./src/utils";
import {
  Suspense,
  lazy,
  useCallback,
  useContext,
  useEffect,
  useState,
} from "react";
import { SafeAreaView } from "react-native-safe-area-context";
import "./i18n";
import DeviceScreen from "./src/Screens/Device";
import { createStackNavigator } from "@react-navigation/stack";
import { TouchableOpacity } from "react-native";
import MyIcon from "./src/Components/Icon";
import { useTranslation } from "react-i18next";
import * as SplashScreen from "expo-splash-screen";

/*
This screens shouldn't be loaded lazy as it one of the first screens the user sees
*/

import OnboardingScreen from "./src/Screens/Onboarding/Onboarding";
import NoDevicesConnectedScreen from "./src/Screens/NoDevicesConnected";
/*
  This screens should be loaded lazy as they are they not seen by the user on startup
*/
const SettingsScreen = lazy(() => import("./src/Screens/Settings"));
const HelpScreen = lazy(() => import("./src/Screens/Help"));
const OpenSourceLicensesModalContent = lazy(() =>
  import("./src/Screens/Settings/modals/openSourceLicences")
);
const MotorEditActionModalContent = lazy(() =>
  import("./src/Screens/Device/modals/EditActions/Motor")
);
const MotorEditActionMotorModeSelectionModalContent = lazy(() =>
  import("./src/Screens/Device/modals/EditActions/Motor").then((module) => ({
    default: module.MotorEditActionMotorModeSelectionModalContent,
  }))
);
const WaitXSecondsEditActionModalContent = lazy(() =>
  import("./src/Screens/Device/modals/EditActions/Wait")
);
const StopEditActionModalContent = lazy(() =>
  import("./src/Screens/Device/modals/EditActions/Stop")
);
const SearchForNewDevicesModalContent = lazy(() =>
  import("./src/Screens/SearchForNewDevices")
);
const HelpCenterModalContent = lazy(() =>
  import("./src/Screens/Help/modals/HelpCenter")
);
const FeedbackStepsModalContent = lazy(() =>
  import("./src/Screens/Help/modals/Feedback/steps")
);
const GiveFeedbackModalContent = lazy(() =>
  import("./src/Screens/Help/modals/Feedback")
);
const FeedbackFinishedModalContent = lazy(() =>
  import("./src/Screens/Help/modals/Feedback/finished")
);
const SettingsAppColorSchemeModalContent = lazy(() =>
  import("./src/Screens/Settings/modals/appColorScheme")
);
const SettingsAppLanguageModalContent = lazy(() =>
  import("./src/Screens/Settings/modals/appLanguage")
);
const ChooseSceneModalContent = lazy(() =>
  import("./src/Screens/Device/modals/ChooseScene")
);
const CreateSceneModalContent = lazy(() =>
  import("./src/Screens/Device/modals/ChooseScene/CreateScene")
);
const AddSceneActionModalContent = lazy(() =>
  import("./src/Screens/Device/modals/AddSceneAction")
);
const LayerSelectionModalContent = lazy(() =>
  import("./src/Screens/Device/modals/AddSceneAction/LayerSelection")
);
const UpdateSceneNameModalContent = lazy(() =>
  import("./src/Screens/Device/modals/UpdateSceneName")
);
const SettingsChangeDeviceDisplayNameModalContent = lazy(() =>
  import("./src/Screens/Device/modals/SettingsChangeDeviceDisplayName")
);
const LightsEditActionModalContent = lazy(() =>
  import("./src/Screens/Device/modals/EditActions/Lights")
);
const LightsEditActionColorModeSelectionModalContent = lazy(() =>
  import("./src/Screens/Device/modals/EditActions/Lights").then((module) => ({
    default: module.LightsEditActionColorModeSelectionModalContent,
  }))
);
const EditActionAnimationSelectionModalContent = lazy(() =>
  import("./src/Screens/Device/modals/EditActions")
);

const Drawer = createDrawerNavigator();
const Stack = createStackNavigator();

// Keep the splash screen visible while we fetch resources
SplashScreen.preventAutoHideAsync();

export function MyApp() {
  const appContext = useContext(AppContext);
  const { t } = useTranslation();

  const [appIsReady, setAppIsReady] = useState(false);
  const [showOnboarding, setShowOnboarding] = useState(false);

  useEffect(() => {
    const loadData = async () => {
      const data = await GetMultipleData([
        "appLanguage",
        "appColorScheme",
        "userExpertMode",
        "userDeveloperMode",
        "userColorSwatchesFavorites",
      ]);

      const appLanguage = GetDataFromList(data, "appLanguage");
      const appColorScheme = GetDataFromList(data, "appColorScheme");
      const userExpertMode = GetDataFromList(data, "userExpertMode");
      const userDeveloperMode = GetDataFromList(data, "userDeveloperMode");
      const userColorSwatchesFavorites = GetDataFromList(
        data,
        "userColorSwatchesFavorites"
      );

      // if the app language is not set we know that the user is using the app for the first time
      if (appLanguage === null) {
        setShowOnboarding(true);
      }

      appContext.setAppLanguage(
        appLanguage === null ? Constants.defaultLanguage : appLanguage
      );
      appContext.setAppColorScheme(
        appColorScheme === null ? "auto" : appColorScheme
      );

      appContext.setIsUserExpertModeEnabled(
        userExpertMode == null ? false : userExpertMode
      );

      appContext.setUserIsDeveloperModeEnabled(
        userDeveloperMode == null ? false : userDeveloperMode
      );

      appContext.setUserColorSwatchesFavorites(
        userColorSwatchesFavorites === null
          ? Constants.defaultColorSwatchesFavorites
          : userColorSwatchesFavorites
      );

      setAppIsReady(true);
    };

    loadData();
  }, []);

  const options = ({ navigation, pageTitle }) => {
    return getScreenStackOptions(
      navigation,
      pageTitle,
      appContext.appTheme.text,
      appContext.appTheme.backgroundColor,
      true
    );
  };

  const navigatonTheme = {
    ...DefaultTheme,
    colors: {
      ...DefaultTheme.colors,
      background: appContext.appTheme.backgroundColor,
      border: "transparent",
    },
  };

  const onLayoutRootView = useCallback(async () => {
    if (appIsReady) {
      // This tells the splash screen to hide immediately! If we call this after
      // `setAppIsReady`, then we may see a blank screen while the app is
      // loading its initial state and rendering its first pixels. So instead,
      // we hide the splash screen once we know the root view has already
      // performed layout.
      await SplashScreen.hideAsync();
    }
  }, [appIsReady]);

  if (!appIsReady) return null;

  return (
    <SafeAreaView style={{ flex: 1 }} onLayout={onLayoutRootView}>
      {showOnboarding ? (
        <OnboardingScreen onContinue={() => setShowOnboarding(false)} />
      ) : (
        <>
          <NavigationContainer theme={navigatonTheme}>
            <Stack.Navigator screenOptions={{ headerTitleAlign: "center" }}>
              <Stack.Screen
                name="drawer"
                component={MyDrawer}
                options={{ headerShown: false }}
              />

              <Stack.Screen
                name="modalChooseScene"
                component={ChooseSceneModalContent}
                options={({ navigation }) =>
                  options({
                    navigation: navigation,
                    pageTitle: t(
                      "screens.device.scenes.modalChooseScene.pageTitle"
                    ),
                  })
                }
              />

              <Stack.Screen
                name="modalCreateScene"
                component={CreateSceneModalContent}
                options={({ navigation }) =>
                  options({
                    navigation: navigation,
                    pageTitle: t(
                      "screens.device.scenes.modalCreateScene.pageTitle"
                    ),
                  })
                }
              />

              <Stack.Screen
                name="modalAddSceneAction"
                component={AddSceneActionModalContent}
                options={({ navigation }) =>
                  options({
                    navigation: navigation,
                    pageTitle: t(
                      "screens.device.scenes.modalAddSceneAction.pageTitle"
                    ),
                  })
                }
              />

              <Stack.Screen
                name="modalLayerSelection"
                component={LayerSelectionModalContent}
                options={({ navigation }) =>
                  options({
                    navigation: navigation,
                    pageTitle: t(
                      "screens.device.scenes.modalLayerSelection.pageTitle"
                    ),
                  })
                }
              />

              <Stack.Screen
                name="modalLightsEditAction"
                component={LightsEditActionModalContent}
                options={({ navigation }) =>
                  options({
                    navigation: navigation,
                  })
                }
              />

              <Stack.Screen
                name="modalLightsEditActionColorModeSelection"
                component={LightsEditActionColorModeSelectionModalContent}
                options={({ navigation }) =>
                  options({
                    navigation: navigation,
                    pageTitle: t(
                      "screens.device.scenes.editActions.modalLightsEditActionColorModeSelection.pageTitle"
                    ),
                  })
                }
              />

              <Stack.Screen
                name="modalEditActionAnimationInOrOutSelection"
                component={EditActionAnimationSelectionModalContent}
                options={({ navigation }) =>
                  options({
                    navigation: navigation,
                  })
                }
              />

              <Stack.Screen
                name="modalMotorEditAction"
                component={MotorEditActionModalContent}
                options={({ navigation }) =>
                  options({
                    navigation: navigation,
                    pageTitle: t(
                      "screens.device.scenes.editActions.modalMotorEditAction.pageTitle"
                    ),
                  })
                }
              />

              <Stack.Screen
                name="modalMotorEditActionMotorModeSelection"
                component={MotorEditActionMotorModeSelectionModalContent}
                options={({ navigation }) =>
                  options({
                    navigation: navigation,
                    pageTitle: t(
                      "screens.device.scenes.editActions.modalMotorEditActionMotorModeSelection.pageTitle"
                    ),
                  })
                }
              />

              <Stack.Screen
                name="modalWaitEditAction"
                component={WaitXSecondsEditActionModalContent}
                options={({ navigation }) =>
                  options({
                    navigation: navigation,
                    pageTitle: t(
                      "screens.device.scenes.editActions.modalWaitEditAction.pageTitle"
                    ),
                  })
                }
              />

              <Stack.Screen
                name="modalStopEditAction"
                component={StopEditActionModalContent}
                options={({ navigation }) =>
                  options({
                    navigation: navigation,
                    pageTitle: t(
                      "screens.device.scenes.editActions.modalStopEditAction.pageTitle"
                    ),
                  })
                }
              />

              <Stack.Screen
                name="modalUpdateSceneName"
                component={UpdateSceneNameModalContent}
                options={({ navigation }) =>
                  options({
                    navigation: navigation,
                    pageTitle: t(
                      "screens.device.scenes.modalUpdateSceneName.pageTitle"
                    ),
                  })
                }
              />

              <Stack.Screen
                name="modalHelpCenter"
                component={HelpCenterModalContent}
                options={({ navigation }) =>
                  options({
                    navigation: navigation,
                    pageTitle: t("screens.help.modalHelpCenter.pageTitle"),
                  })
                }
              />

              <Stack.Screen
                name="modalGiveFeedback"
                component={GiveFeedbackModalContent}
                options={({ navigation }) =>
                  options({
                    navigation: navigation,
                    pageTitle: t("screens.help.modalGiveFeedback.pageTitle"),
                  })
                }
              />

              <Stack.Screen
                name="modalFeedbackSteps"
                component={FeedbackStepsModalContent}
                options={({ navigation }) =>
                  options({
                    navigation: navigation,
                    pageTitle: t("screens.help.modalFeedbackSteps.pageTitle"),
                  })
                }
              />

              <Stack.Screen
                name="modalFeedbackFinished"
                component={FeedbackFinishedModalContent}
                options={({ navigation }) =>
                  options({
                    navigation: navigation,
                    pageTitle: t(
                      "screens.help.modalFeedbackFinished.pageTitle"
                    ),
                  })
                }
              />

              <Stack.Screen
                name="modalSettingsAppColorScheme"
                component={SettingsAppColorSchemeModalContent}
                options={({ navigation }) =>
                  options({
                    navigation: navigation,
                    pageTitle: t(
                      "screens.settings.cardGeneral.modalAppColorSchemePicker.pageTitle"
                    ),
                  })
                }
              />

              <Stack.Screen
                name="modalSettingsAppLanguage"
                component={SettingsAppLanguageModalContent}
                options={({ navigation }) =>
                  options({
                    navigation: navigation,
                    pageTitle: t(
                      "screens.settings.cardGeneral.modalLanguagePageTitle"
                    ),
                  })
                }
              />

              <Stack.Screen
                name="modalOpenSourceLicences"
                component={OpenSourceLicensesModalContent}
                options={({ navigation }) =>
                  options({
                    navigation: navigation,
                    pageTitle: t(
                      "screens.settings.modalOpenSourceLicences.pageTitle"
                    ),
                  })
                }
              />

              <Stack.Screen
                name="modalSettingsChangeDeviceDisplayName"
                component={SettingsChangeDeviceDisplayNameModalContent}
                options={({ navigation }) =>
                  options({
                    navigation: navigation,
                    pageTitle: t(
                      "screens.device.settings.modalSettingsChangeDeviceDisplayName.pageTitle"
                    ),
                  })
                }
              />

              <Stack.Screen
                name="modalSearchForNewDevices"
                component={SearchForNewDevicesModalContent}
                options={({ navigation }) =>
                  options({
                    navigation: navigation,
                    pageTitle: t("screens.modalSearchForNewDevices.pageTitle"),
                  })
                }
              />
            </Stack.Navigator>
          </NavigationContainer>

          <StatusBar
            backgroundColor={appContext.appTheme.backgroundColor}
            style={appContext.appTheme._id === "dark" ? "light" : "dark"}
          />
        </>
      )}
    </SafeAreaView>
  );
}

// This is for the left sidebar navigation
function MyDrawer() {
  const appContext = useContext(AppContext);

  return (
    <Drawer.Navigator
      screenOptions={{
        headerShown: false,
        //headerStyle: {
        //  backgroundColor: appContext.appTheme.backgroundColor,
        //},
        //headerTintColor: appContext.appTheme.text,
        drawerStyle: {
          backgroundColor: appContext.appTheme.drawer.backgroundColor,
        },
      }}
      drawerContent={(props) => <SideBar {...props} />}
    >
      <Drawer.Screen
        name="_noDevicesConnected"
        component={NoDevicesConnectedStack}
      />

      {appContext.devices.map((device) => (
        <Drawer.Screen
          key={device.id}
          name={device.displayName}
          component={DeviceScreenStack}
          initialParams={{ deviceDisplayName: device.displayName }}
        />
      ))}

      <Drawer.Screen name="Help" component={HelpScreenStack} />
      <Drawer.Screen name="Settings" component={SettingsScreenStack} />
    </Drawer.Navigator>
  );
}

const DeviceScreenStack = (props) => {
  return (
    <MyScreenStack
      name="device"
      pageTitle={props.route.params.deviceDisplayName}
      component={DeviceScreen}
      navigation={props.navigation}
      params={props.route.params}
    />
  );
};

const NoDevicesConnectedStack = (props) => {
  const { t } = useTranslation();

  return (
    <MyScreenStack
      name="noDevicesConnected"
      pageTitle={t("screens.noDevicesConnected.pageTitle")}
      component={NoDevicesConnectedScreen}
      navigation={props.navigation}
    />
  );
};

const HelpScreenStack = (props) => {
  const { t } = useTranslation();

  return (
    <MyScreenStack
      name="help"
      pageTitle={t("screens.help.pageTitle")}
      component={HelpScreen}
      navigation={props.navigation}
    />
  );
};

const SettingsScreenStack = (props) => {
  const { t } = useTranslation();

  return (
    <MyScreenStack
      name="settings"
      pageTitle={t("screens.settings.pageTitle")}
      component={SettingsScreen}
      navigation={props.navigation}
    />
  );
};

function getScreenStackOptions(
  navigation,
  pageTitle,
  headerTintColor,
  headerBackgroundColor,
  isModalScreen
) {
  return {
    title: pageTitle,
    headerLeft: () => (
      <TouchableOpacity
        onPress={() =>
          isModalScreen ? navigation.goBack() : navigation.toggleDrawer()
        }
      >
        <MyIcon
          name={isModalScreen ? "chevron-left" : "menu"}
          size={24}
          style={[AppStyles.headerNavigationIcons]}
        />
      </TouchableOpacity>
    ),
    headerTintColor: headerTintColor,
    headerTitleAlign: "center",
    headerStyle: {
      backgroundColor: headerBackgroundColor,
      height: IsPlatformIos() ? 76 : 56,
    },
  };
}

function MyScreenStack({ navigation, name, pageTitle, component, params }) {
  const appContext = useContext(AppContext);

  return (
    <Stack.Navigator initialRouteName={name}>
      <Stack.Screen
        name={name}
        component={component}
        initialParams={params}
        options={getScreenStackOptions(
          navigation,
          pageTitle,
          appContext.appTheme.text,
          appContext.appTheme.backgroundColor
        )}
      />
    </Stack.Navigator>
  );
}

export default function App() {
  return (
    <Suspense
      fallback={
        <View
          style={{ flex: 1, justifyContent: "center", alignItems: "center" }}
        >
          <Text>Loading...</Text>
        </View>
      }
    >
      <AppProvider>
        <MyApp />
      </AppProvider>
    </Suspense>
  );
}