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66 lines
1.8 KiB
TypeScript
66 lines
1.8 KiB
TypeScript
/*
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Copyright 2025 Google LLC
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import { v0_8 } from "@a2ui/lit";
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import { registerContactComponents } from "./ui/custom-components/register-components.js";
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type A2TextPayload = {
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kind: "text";
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text: string;
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};
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type A2DataPayload = {
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kind: "data";
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data: v0_8.Types.ServerToClientMessage;
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};
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type A2AServerPayload =
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| Array<A2DataPayload | A2TextPayload>
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| { error: string };
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export class A2UIClient {
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#ready: Promise<void> = Promise.resolve();
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get ready() {
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return this.#ready;
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}
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async send(
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message: v0_8.Types.A2UIClientEventMessage
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): Promise<v0_8.Types.ServerToClientMessage[]> {
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const response = await fetch("/a2a", {
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body: JSON.stringify(message),
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method: "POST",
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});
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if (response.ok) {
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const data = (await response.json()) as A2AServerPayload;
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const messages: v0_8.Types.ServerToClientMessage[] = [];
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if ("error" in data) {
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throw new Error(data.error);
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} else {
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for (const item of data) {
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if (item.kind === "text") continue;
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messages.push(item.data);
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}
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}
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return messages;
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}
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const error = (await response.json()) as { error: string };
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throw new Error(error.error);
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}
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}
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registerContactComponents();
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