perf: 阿里云waf cname站点选择支持翻页及域名查询

packages/core/pipeline/src/context/index.ts

@@ -3,7 +3,7 @@ import { IContext } from "../core/index.js";
 export type UserContext = IContext;
 export type PipelineContext = IContext;
 
-export type PageReq = {
+export type PageSearch = {
   offset?: number;
   limit?: number;
   searchKey?: string;
@@ -17,3 +17,26 @@ export type PageRes = {
   total?: string;
   list: any[];
 };
+
+export class Pager {
+  offset: number;
+  limit: number;
+  constructor(req: PageSearch) {
+    this.offset = req.offset ?? 0;
+    this.limit = req.limit || 50;
+  }
+
+  getPageNo() {
+    const size = this.limit;
+    const offset = this.offset;
+    let page = Math.floor(offset / size);
+    if (offset % size === 0) {
+      page++;
+    }
+    return page;
+  }
+
+  setPageNo(pageNo: number) {
+    this.offset = (pageNo - 1) * (this.limit ?? 50);
+  }
+}