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| 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 | 2x 2x 2x 30x 30x 30x 30x 67x 67x 67x 2x 26x 2x 18x 15x 4x 3x 2x 4x 2x 3x 2x 16x 13x 16x 16x 32x 2x | import deepmerge from 'deepmerge';
import compareVersions from 'compare-versions';
export class StorageController {
separator = '/';
componentTree: Record<string, string[]> = {};
constructor(private prefix: string, private storage: Storage) {
this.componentTree = Object.keys(this.storage)
.map(key => {
const [, comp, componentVersion] = key.split(this.separator);
return {
[comp]: [componentVersion]
};
})
.reduce((tree, key) => deepmerge(tree, key), {});
}
getStorageKey(name: string, componentVersion: string): string {
return [this.prefix, name, componentVersion].join(this.separator);
}
getLatestVersion(name: string): string | undefined {
if (!this.componentTree[name]) {
return;
}
const [latestComponentVersion] = this.componentTree[name].sort((x: string, y: string) => compareVersions(y, x));
return latestComponentVersion;
}
has(name: string, componentVersion: string): boolean {
return !!(this.componentTree[name] && this.componentTree[name].includes(componentVersion));
}
async getItem(name: string, componentVersion: string): Promise<string | null> {
return await this.storage.getItem(this.getStorageKey(name, componentVersion));
}
async setItem(name: string, componentVersion: string, code: string): Promise<void> {
if (!this.componentTree[name]) {
this.componentTree[name] = [];
}
Eif (!this.componentTree[name].includes(componentVersion)) {
this.componentTree[name].push(componentVersion);
}
await this.storage.setItem(this.getStorageKey(name, componentVersion), code);
}
}
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