✨ 增加读取缓存目录大小

close #55

src/utils/toolFunc.ts

@@ -4,6 +4,8 @@
  * @since Beta v0.3.4
  */
 
+import { fs, os, path } from "@tauri-apps/api";
+import type { FileEntry } from "@tauri-apps/api/fs";
 import { v4 } from "uuid";
 
 /**
@@ -34,3 +36,62 @@ export function getDeviceID(): string {
   }
   return deviceID;
 }
+
+/**
+ * @description byte 转成 KB MB GB
+ * @since Beta v0.3.4
+ * @param {number} bytes - 字节数
+ * @returns {string} KB MB GB
+ */
+export function bytesToSize(bytes: number): string {
+  if (bytes === 0) return "0 B";
+  const k = 1024;
+  const sizes = ["B", "KB", "MB", "GB"];
+  const i = Math.floor(Math.log(bytes) / Math.log(k));
+  return `${(bytes / Math.pow(k, i)).toFixed(2)} ${sizes[i]}`;
+}
+
+/**
+ * @description 获取文件夹大小
+ * @since Beta v0.3.4
+ * @param {FileEntry[]} cacheInfo - 文件夹信息
+ * @param {boolean} isRoot - 是否是根目录
+ * @returns {Promise<number>} 文件夹大小
+ */
+export async function getDirSize(cacheInfo: FileEntry[], isRoot: false): Promise<number>;
+export async function getDirSize(cacheInfo: FileEntry[], isRoot?: true): Promise<string>;
+export async function getDirSize(
+  cacheInfo: FileEntry[],
+  isRoot?: boolean,
+): Promise<number | string> {
+  let size = 0;
+  for (const item of cacheInfo) {
+    if (item.children) {
+      const dir = await fs.readDir(item.path);
+      size += await getDirSize(dir, false);
+    } else {
+      const file = await fs.readBinaryFile(item.path);
+      size += file.byteLength;
+    }
+  }
+  if (isRoot === undefined || isRoot) return bytesToSize(size);
+  return size;
+}
+
+/**
+ * @description 获取缓存目录
+ * @since Beta v0.3.4
+ * @returns {string|string[]} 缓存目录
+ */
+export async function getCacheDir(): Promise<string | string[] | false> {
+  const cacheDir = await path.appCacheDir();
+  const osType = await os.type();
+  if (osType === "Windows_NT") {
+    const cache = `${cacheDir}EBWebview${path.sep}Default${path.sep}Cache`;
+    const codeCache = `${cacheDir}EBWebview${path.sep}Default${path.sep}Code Cache`;
+    return [cache, codeCache];
+  } else if (osType === "Darwin") {
+    return `${cacheDir}WebKit`;
+  }
+  return false;
+}