feat: Create the setupInterfaces types

lib/interfaces/Origin.ts

@@ -0,0 +1,29 @@
+import { Address } from "../types"
+import { Host, PortOptions } from "./Host"
+
+export class Origin<T extends Host> {
+  constructor(readonly host: T, readonly options: PortOptions) {}
+
+  build({ username, path, search }: BuildOptions): Address {
+    const qpEntries = Object.entries(search)
+      .map(
+        ([key, val]) => `${encodeURIComponent(key)}=${encodeURIComponent(val)}`,
+      )
+      .join("&")
+
+    const qp = qpEntries.length ? `?${qpEntries}` : ""
+
+    return {
+      hostId: this.host.options.id,
+      options: this.options,
+      suffix: `${path}${qp}`,
+      username,
+    }
+  }
+}
+
+type BuildOptions = {
+  username: string | null
+  path: string
+  search: Record<string, string>
+}