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import { ICache } from '@api/abstract/abstract.cache';
import { CacheConf, CacheConfLocal, ConfigService } from '@config/env.config';
import { Logger } from '@config/logger.config';
import { BufferJSON } from 'baileys';
import NodeCache from 'node-cache';
export class LocalCache implements ICache {
private readonly logger = new Logger('LocalCache');
private conf: CacheConfLocal;
static localCache = new NodeCache();
constructor(
private readonly configService: ConfigService,
private readonly module: string,
) {
this.conf = this.configService.get<CacheConf>('CACHE')?.LOCAL;
}
async get(key: string): Promise<any> {
return LocalCache.localCache.get(this.buildKey(key));
}
async set(key: string, value: any, ttl?: number) {
return LocalCache.localCache.set(this.buildKey(key), value, ttl || this.conf.TTL);
}
async has(key: string) {
return LocalCache.localCache.has(this.buildKey(key));
}
async delete(key: string) {
return LocalCache.localCache.del(this.buildKey(key));
}
async deleteAll(appendCriteria?: string) {
const keys = await this.keys(appendCriteria);
if (!keys?.length) {
return 0;
}
return LocalCache.localCache.del(keys);
}
async keys(appendCriteria?: string) {
const filter = `${this.buildKey('')}${appendCriteria ? `${appendCriteria}:` : ''}`;
return LocalCache.localCache.keys().filter((key) => key.substring(0, filter.length) === filter);
}
buildKey(key: string) {
return `${this.module}:${key}`;
}
async hGet(key: string, field: string) {
try {
const data = LocalCache.localCache.get(this.buildKey(key)) as object;
if (data && field in data) {
return JSON.parse(data[field], BufferJSON.reviver);
}
return null;
} catch (error) {
this.logger.error(error);
}
}
async hSet(key: string, field: string, value: any) {
try {
const json = JSON.stringify(value, BufferJSON.replacer);
let hash = LocalCache.localCache.get(this.buildKey(key));
if (!hash) {
hash = {};
}
hash[field] = json;
LocalCache.localCache.set(this.buildKey(key), hash);
} catch (error) {
this.logger.error(error);
}
}
async hDelete(key: string, field: string) {
try {
const data = LocalCache.localCache.get(this.buildKey(key)) as object;
if (data && field in data) {
delete data[field];
LocalCache.localCache.set(this.buildKey(key), data);
return 1;
}
return 0;
} catch (error) {
this.logger.error(error);
}
}
}
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