notesnook/apps/mobile/src/components/AppLoader/index.js

import React, {useEffect, useState} from 'react';
import {View} from 'react-native';
import Animated, {Easing} from 'react-native-reanimated';
import AnimatedProgress from 'react-native-reanimated-progress-bar';
import {useTracked} from '../../provider';
import {useFavoriteStore, useNoteStore} from '../../provider/stores';
import {DDS} from '../../services/DeviceDetection';
import {
  eSendEvent,
  eSubscribeEvent,
  eUnSubscribeEvent,
} from '../../services/EventManager';
import {editing} from '../../utils';
import {changeContainerScale, ContainerScale} from '../../utils/Animations';
import {db} from '../../utils/DB';
import {eOpenRateDialog, eOpenSideMenu} from '../../utils/Events';
import {MMKV} from '../../utils/mmkv';
import {tabBarRef} from '../../utils/Refs';
import SplashScreen from '../SplashScreen';

const opacityV = new Animated.Value(1);
const AppLoader = ({onLoad}) => {
  const [state, dispatch] = useTracked();
  const colors = state.colors;
  const [loading, setLoading] = useState(true);
  const setNotes = useNoteStore(state => state.setNotes);
  const setFavorites = useFavoriteStore(state => state.setFavorites);
  const _setLoading = useNoteStore(state => state.setLoading);
  const load = async value => {
    if (value === 'hide') {
      setLoading(true);
      opacityV.setValue(1);
      return;
    }
    let appState = await MMKV.getItem('appState');
    if (appState) {
      appState = JSON.parse(appState);
      if (
        appState.note &&
        !appState.movedAway &&
        Date.now() < appState.timestamp + 3600000
      ) {
        editing.isRestoringState = true;
        editing.currentlyEditing = true;
        if (!DDS.isTab) {
          tabBarRef.current?.goToPage(1);
        }

        eSendEvent('loadingNote', appState.note);
      }
    }

    if (value === 'show') {
      opacityV.setValue(0);
      setLoading(false);
      return;
    }
    eSendEvent(eOpenSideMenu);
    Animated.timing(opacityV, {
      toValue: 0,
      duration: 100,
      easing: Easing.out(Easing.ease),
    }).start();
    setLoading(false);
    await db.notes.init();
    setNotes();
    setFavorites();
    _setLoading(false);
    eSendEvent(eOpenSideMenu);
    let askForRating = await MMKV.getItem('askForRating');
    if (askForRating !== 'never' || askForRating !== 'completed') {
      askForRating = JSON.parse(askForRating);
      if (askForRating?.timestamp < Date.now()) {
        eSendEvent(eOpenRateDialog);
      }
    }
  };

  useEffect(() => {
    eSubscribeEvent('load_overlay', load);
    onLoad();
    return () => {
      eUnSubscribeEvent('load_overlay', load);
    };
  }, []);

  return loading ? (
    <Animated.View
      style={{
        backgroundColor: colors.bg,
        width: '100%',
        height: '100%',
        position: 'absolute',
        zIndex: 999,
        borderRadius: 10,
      }}>
      <Animated.View
        onTouchStart={() => {
          setLoading(false);
        }}
        style={{
          backgroundColor: colors.bg,
          width: '100%',
          height: '100%',
          justifyContent: 'center',
          alignItems: 'center',
          borderRadius: 10,
          opacity: opacityV,
        }}>
        <View
          style={{
            height: 10,
            flexDirection: 'row',
            width: 100,
          }}>
          <AnimatedProgress fill={colors.accent} current={4} total={4} />
        </View>
      </Animated.View>
    </Animated.View>
  ) : (
    <SplashScreen />
  );
};

export default AppLoader;