import { injectable } from 'inversify';
import { IStorage } from '../interfaces/storages/IStorage';
import { initializable } from '../decorators/Initializable';
import { RandomGeneratorUtils } from '../utils/RandomGeneratorUtils';
@injectable()
export abstract class MapStorage <T> implements IStorage <T> {
/**
* @type {string}
*/
@initializable()
protected storageId: string;
/**
* @type {Map <string | number, T>}
*/
@initializable()
protected storage: Map <string | number, T>;
/**
* @param key
* @returns {T}
*/
public get (key: string | number): T {
const value: T | undefined = this.storage.get(key);
if (!value) {
throw new Error(`No value found in map storage with key \`${key}\``);
}
return value;
}
/**
* @param value
* @returns {string | number | null}
*/
public getKeyOf (value: T): string | number | null {
for (const [key, storageValue] of this.storage) {
if (value === storageValue) {
return key;
}
}
return null;
}
/**
* @returns {number}
*/
public getLength (): number {
return this.storage.size;
}
/**
* @returns {Map <string | number, T>}
*/
public getStorage (): Map <string | number, T> {
return this.storage;
}
/**
* @returns {string}
*/
public getStorageId (): string {
return this.storageId;
}
/**
* @param args
*/
public initialize (...args: any[]): void {
this.storage = new Map <string | number, T> ();
this.storageId = RandomGeneratorUtils.getRandomString(6);
}
/**
* @param storage
* @param mergeId
*/
public mergeWith (storage: this, mergeId: boolean = false): void {
this.storage = new Map <string | number, T> ([...this.storage, ...storage.getStorage()]);
if (mergeId) {
this.storageId = storage.getStorageId();
}
}
/**
* @param key
* @param value
*/
public set (key: string | number, value: T): void {
this.storage.set(key, value);
}
}
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