scrabble-solver
Version:
Scrabble Solver 2 - Free, open-source, cross-platform, multi-language analysis tool for Scrabble, Scrabble Duel, Super Scrabble, Letter League, Literaki, and Kelimelik. Quickly find the top-scoring words using the given board and tiles.
50 lines (49 loc) • 1.95 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.DiskCache = void 0;
const trie_1 = require("@kamilmielnik/trie");
const fs_1 = __importDefault(require("fs"));
const constants_1 = require("../constants");
const getDictionaryFilepath_1 = require("./getDictionaryFilepath");
class DiskCache {
async get(locale) {
if (!this.has(locale)) {
return undefined;
}
const filepath = (0, getDictionaryFilepath_1.getDictionaryFilepath)(locale);
const serialized = await fs_1.default.promises.readFile(filepath, 'utf-8');
const trie = trie_1.Trie.deserialize(serialized);
return trie;
}
getLastModifiedTimestamp(locale) {
const filepath = (0, getDictionaryFilepath_1.getDictionaryFilepath)(locale);
if (!fs_1.default.existsSync(filepath)) {
return undefined;
}
const stats = fs_1.default.statSync(filepath);
return stats.mtimeMs;
}
has(locale) {
const filepath = (0, getDictionaryFilepath_1.getDictionaryFilepath)(locale);
return fs_1.default.existsSync(filepath);
}
isStale(locale) {
if (!this.has(locale)) {
return undefined;
}
const lastModifiedTimestamp = this.getLastModifiedTimestamp(locale);
if (typeof lastModifiedTimestamp === 'undefined') {
return undefined;
}
const timeSinceModification = Math.abs(lastModifiedTimestamp - Date.now());
return timeSinceModification > constants_1.CACHE_STALE_THRESHOLD;
}
async set(locale, trie) {
const filepath = (0, getDictionaryFilepath_1.getDictionaryFilepath)(locale);
await fs_1.default.promises.writeFile(filepath, trie.serialize());
}
}
exports.DiskCache = DiskCache;