refactor(sdk): musicSdk 全量迁移至 TypeScript

musicSdk/mg/utils/index.ts

@@ -1,4 +1,5 @@
-import { httpFetch } from '../../request.js'
+import { httpFetch } from '../../request.ts'
+import type { HttpOptions } from '../../types.ts'
 
 /**
  * 创建一个适用于MG的Http请求
@@ -6,7 +7,7 @@ import { httpFetch } from '../../request.js'
  * @param {*} options
  * @param {*} retryNum
  */
-export const createHttpFetch = async(url, options, retryNum = 0) => {
+export const createHttpFetch = async(url: string, options?: HttpOptions, retryNum = 0): Promise<any> => {
   if (retryNum > 2) throw new Error('try max num')
   let result
   try {

musicSdk/mg/utils/mrc.ts

@@ -16,7 +16,7 @@ const keyArr = [
 ]
 
 
-const teaDecrypt = (data, key) => {
+const teaDecrypt = (data: bigint[], key: bigint[]): bigint[] => {
   const length = data.length
   const lengthBitint = BigInt(length)
   if (length >= 1) {
@@ -31,14 +31,14 @@ const teaDecrypt = (data, key) => {
       while (true) {
         j6--
         if (j6 > 0n) {
-          let j7 = data[(j6 - 1n)]
-          let i = j6
-          j2 = toLong(data[i] - (toLong(toLong(j2 ^ j4) + toLong(j7 ^ key[toLong(toLong(3n & j6) ^ j5)])) ^ toLong(toLong(toLong(j7 >> 5n) ^ toLong(j2 << 2n)) + toLong(toLong(j2 >> 3n) ^ toLong(j7 << 4n)))))
+          let j7 = data[(j6 - 1n) as unknown as number]
+          let i = j6 as unknown as number
+          j2 = toLong(data[i] - (toLong(toLong(j2 ^ j4) + toLong(j7 ^ key[toLong(toLong(3n & j6) ^ j5) as unknown as number])) ^ toLong(toLong(toLong(j7 >> 5n) ^ toLong(j2 << 2n)) + toLong(toLong(j2 >> 3n) ^ toLong(j7 << 4n)))))
           data[i] = j2
         } else break
       }
-      let j8 = data[lengthBitint - 1n]
-      j2 = toLong(data[0n] - toLong(toLong(toLong(key[toLong(toLong(j6 & 3n) ^ j5)] ^ j8) + toLong(j2 ^ j4)) ^ toLong(toLong(toLong(j8 >> 5n) ^ toLong(j2 << 2n)) + toLong(toLong(j2 >> 3n) ^ toLong(j8 << 4n)))))
+      let j8 = data[lengthBitint - 1n as unknown as number]
+      j2 = toLong(data[0n as unknown as number] - toLong(toLong(toLong(key[toLong(toLong(j6 & 3n) ^ j5) as unknown as number] ^ j8) + toLong(j2 ^ j4)) ^ toLong(toLong(toLong(j8 >> 5n) ^ toLong(j2 << 2n)) + toLong(toLong(j2 >> 3n) ^ toLong(j8 << 4n)))))
       data[0] = j2
       j3 = toLong(j4 - DELTA)
     }
@@ -46,26 +46,26 @@ const teaDecrypt = (data, key) => {
   return data
 }
 
-const longArrToString = (data) => {
-  const arrayList = []
+const longArrToString = (data: bigint[]): string => {
+  const arrayList: string[] = []
   for (const j of data) arrayList.push(longToBytes(j).toString('utf16le'))
   return arrayList.join('')
 }
 
 // https://stackoverflow.com/a/29132118
-const longToBytes = (l) => {
+const longToBytes = (l: bigint): Buffer => {
   const result = Buffer.alloc(8)
   for (let i = 0; i < 8; i++) {
-    result[i] = parseInt(l & 0xFFn)
+    result[i] = parseInt((l & 0xFFn) as unknown as string)
     l >>= 8n
   }
   return result
 }
 
 
-const toBigintArray = (data) => {
+const toBigintArray = (data: string): bigint[] => {
   const length = Math.floor(data.length / 16)
-  const jArr = Array(length)
+  const jArr: bigint[] = Array(length)
   for (let i = 0; i < length; i++) {
     jArr[i] = toLong(data.substring(i * 16, (i * 16) + 16))
   }
@@ -75,14 +75,14 @@ const toBigintArray = (data) => {
 // https://github.com/lyswhut/lx-music-desktop/issues/445#issuecomment-1139338682
 const MAX = 9223372036854775807n
 const MIN = -9223372036854775808n
-const toLong = str => {
+const toLong = (str: string | bigint): bigint => {
   const num = typeof str == 'string' ? BigInt('0x' + str) : str
   if (num > MAX) return toLong(num - (1n << 64n))
   else if (num < MIN) return toLong(num + (1n << 64n))
   return num
 }
 
-export const decrypt = (data) => {
+export const decrypt = (data: string | null): string | null => {
   // console.log(data.length)
   // -3551594764563790630
   // console.log(toLongArrayFromArr(Buffer.from(key)))