97 lines
2.8 KiB
TypeScript
97 lines
2.8 KiB
TypeScript
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import * as path from "path";
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import * as fs from "fs-extra";
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import * as electron from "electron";
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import validateCacheFile from "./CacheFile.validator";
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import CacheFile, {UIPackInfo} from "./CacheFile";
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let localUiCacheInstance: CacheFile;
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async function doLoad() {
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const file = path.join(uiCachePath(), "data.json");
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if(!(await fs.pathExists(file))) {
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console.debug("Missing UI cache file. Creating a new one.");
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/* we've no cache */
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return;
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}
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const anyData = await fs.readJSON(file);
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try {
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if(anyData["version"] !== 3) {
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throw "unsupported version " + anyData["version"];
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}
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localUiCacheInstance = validateCacheFile(anyData);
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} catch (error) {
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if(error?.message?.startsWith("CacheFile")) {
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/* We have no need to fully print the read data */
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error = "\n- " + error.message.split("\n")[0].split(", ").join("\n- ");
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} else if(error?.message) {
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error = error.message;
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} else if(typeof error !== "string") {
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console.error(error);
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}
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console.warn("Current Ui cache file seems to be invalid. Renaming it and creating a new one: %s", error);
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try {
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await fs.rename(file, path.join(uiCachePath(), "data.json." + Date.now()));
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} catch (error) {
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console.warn("Failed to invalidate old ui cache file: %o", error);
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}
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}
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}
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/**
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* Will not throw or return undefined!
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*/
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export async function loadLocalUiCache() {
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if(localUiCacheInstance) {
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throw "ui cache has already been loaded";
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}
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try {
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await doLoad();
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} catch (error) {
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console.warn("Failed to load UI cache file: %o. This will cause loss of the file content.", error);
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}
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if(!localUiCacheInstance) {
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localUiCacheInstance = {
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version: 3,
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cachedPacks: []
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}
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}
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}
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export function localUiCache() : CacheFile {
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if(typeof localUiCacheInstance !== "object") {
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throw "missing local ui cache";
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}
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return localUiCacheInstance;
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}
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/**
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* Will not throw anything
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*/
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export async function saveLocalUiCache() {
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const file = path.join(uiCachePath(), "data.json");
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try {
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if(!(await fs.pathExists(path.dirname(file)))) {
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await fs.mkdirs(path.dirname(file));
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}
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await fs.writeJson(file, localUiCacheInstance);
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} catch (error) {
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console.error("Failed to save UI cache file. This will may cause some data loss: %o", error);
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}
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}
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export function uiCachePath() {
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return path.join(electron.app.getPath('userData'), "cache", "ui");
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}
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export function uiPackCachePath(version: UIPackInfo) : string {
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return path.join(uiCachePath(), version.channel + "_" + version.versions_hash + "_" + version.timestamp + ".tar.gz");
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}
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