All files / src index.js

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
import AsyncStorage from '@react-native-community/async-storage';
 
import handleError from './helpers/handleError';
 
type KeyType = string;
 
class SyncStorage {
  data: Map<*, *> = new Map();
  loading: boolean = true;
 
  init(): Promise<Array<*>> {
    return AsyncStorage.getAllKeys().then((keys: Array<KeyType>) =>
      AsyncStorage.multiGet(keys).then((data: Array<Array<KeyType>>): Array<*> => {
        data.forEach(this.saveItem.bind(this));
 
        return [...this.data];
      }));
  }
 
  get(key: KeyType): any {
    return this.data.get(key);
  }
 
  set(key: KeyType, value: any): Promise<*> {
    if (!key) return handleError('set', 'a key');
 
    this.data.set(key, value);
    return AsyncStorage.setItem(key, JSON.stringify(value));
  }
 
  remove(key: KeyType): Promise<*> {
    if (!key) return handleError('remove', 'a key');
 
    this.data.delete(key);
    return AsyncStorage.removeItem(key);
  }
 
  saveItem(item: Array<KeyType>) {
    let value;
 
    try {
      value = JSON.parse(item[1]);
    } catch (e) {
      [, value] = item;
    }
 
    this.data.set(item[0], value);
    this.loading = false;
  }
 
  getAllKeys(): Array<*> {
    return Array.from(this.data.keys());
  }
}
 
const syncStorage = new SyncStorage();
 
export default syncStorage;