refactor: split IAB sellers downloader

Author: piquark6046

builder/source/references/iabsellers.ts

@@ -0,0 +1,38 @@
+import * as Zod from 'zod'
+import { HTTPSRequest } from '@typescriptprime/securereq'
+
+
+const IABSellersJsonURL = 'https://info.ad-shield.io/sellers.json'
+
+export async function FetchIABSellersJsonData(): Promise<string[]> {
+  const IABSellersJsonResponse: { StatusCode: number, Headers: Record<string, string | string[]>, Body: unknown } = await HTTPSRequest(new URL(IABSellersJsonURL), { ExpectedAs: 'JSON' })
+  let IABSellersJsonData =IABSellersJsonResponse.Body as {
+    // eslint-disable-next-line @typescript-eslint/naming-convention
+    sellers: Array<{
+      // eslint-disable-next-line @typescript-eslint/naming-convention
+      seller_id: number,
+      // eslint-disable-next-line @typescript-eslint/naming-convention
+      seller_type: string,
+      // eslint-disable-next-line @typescript-eslint/naming-convention
+      name: string,
+      // eslint-disable-next-line @typescript-eslint/naming-convention
+      domain: string
+    }>
+  }
+  IABSellersJsonData = await Zod.object({
+    sellers: Zod.array(Zod.object({
+      seller_id: Zod.number(),
+      seller_type: Zod.string(),
+      name: Zod.string(),
+      domain: Zod.string().refine(D => {
+        try {
+          new URL(`https://${D}`)
+        } catch {
+          return false
+        }
+        return true
+      })
+    }))
+  }).parseAsync(IABSellersJsonData)
+  return [...new Set(IABSellersJsonData.sellers.map(S => S.domain))]
+}