modrinth/src/cache.js

JavaScript library for accessing the Modrinth API

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Cache = void 0;
class Cache {
    constructor(options = Object.create(null)) {
        this.options = {};
        Object.assign(this.options, Cache.defaultOptions, options);
        this.data = Object.create(null);
    }
    get now() {
        return Date.now();
    }
    get capacity() {
        return this.options.capacity;
    }
    get size() {
        return Object.keys(this.data).length;
    }
    get empty() {
        return this.size <= 0;
    }
    get full() {
        return this.size >= this.capacity;
    }
    get percent() {
        return (this.size / this.capacity) * 100;
    }
    get(key) {
        if (!this.data[key])
            return;
        if (this.data[key].expiry >= Date.now()) {
            this.delete(key);
            return;
        }
        return this.data[key].value;
    }
    has(key) {
        return !!this.get(key);
    }
    set(key, value, ttl) {
        if (!ttl)
            ttl = this.options.ttl;
        if (this.full)
            this.prune(1);
        return this.data[key] = {
            expiry: this.now + ttl,
            value
        };
    }
    prune(amount = 1) {
        /** the keys of the {amount} oldest items. */
        const keys = Object.keys(this.data).splice(0, amount);
        for (const key in keys) {
            this.delete(key);
        }
    }
    delete(key) {
        if (this.data[key])
            delete this.data[key];
    }
    clear() {
        this.data = Object.create(null);
    }
}
exports.Cache = Cache;
Cache.defaultOptions = {
    ttl: Infinity,
    capacity: Infinity
};