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|
import { useCallback, useEffect, useMemo, useState } from "react";
import { getHost } from "~/utils";
export type Headers = [string, string][];
export type Method =
| "GET"
| "HEAD"
| "POST"
| "PUT"
| "DELETE"
| "CONNECT"
| "OPTIONS"
| "TRACE"
| "PATCH";
export interface RequestPayload {
id: string;
timestamp: string;
body: string;
headers: Headers;
method: Method;
path: string;
}
interface Request {
type: "request";
payload: RequestPayload;
}
export interface ResponsePayload {
id: string;
timing: number;
body: string;
headers: Headers;
status: number;
}
interface Response {
type: "response";
payload: ResponsePayload;
}
interface Historic {
type: "historic";
payload: (Request | Response)[];
}
export interface RequestResponse {
request: RequestPayload;
response?: ResponsePayload;
}
export enum ReadyState {
CONNECTING = 0,
OPEN = 1,
CLOSING = 2,
CLOSED = 3,
}
export interface useRequestsProps {
onConnect: () => Promise<void>;
}
export interface UseRequests {
calls: RequestResponse[];
readyState: ReadyState;
clear: () => void;
}
export default function useRequests({
onConnect,
}: useRequestsProps): UseRequests {
const wsHost = useMemo(getHost, []);
const [initialConnection, setInitialConnection] = useState(true);
const [requests, setRequests] = useState<RequestPayload[]>([]);
const [responses, setResponses] = useState<ResponsePayload[]>([]);
const connect = useCallback(
() => new WebSocket(`ws://${wsHost}/inspect/`),
[wsHost]
);
const [ws, setWs] = useState<WebSocket>(() => connect());
const [readyState, setReadyState] = useState<ReadyState>(ws.readyState);
useEffect(() => {
setReadyState(ws.readyState);
const onClose = () => {
setReadyState(ws.readyState);
setWs(connect());
};
const onOpen = () => {
onConnect();
setInitialConnection(false);
setReadyState(ws.readyState);
};
const onMessage = ({ data }) => {
const { type, payload } = JSON.parse(data) as
| Historic
| Request
| Response;
switch (type) {
case "historic":
if (initialConnection) {
const requests = (payload as (Request | Response)[]).filter(
({ type }) => type === "request"
);
const responses = (payload as (Request | Response)[]).filter(
({ type }) => type === "response"
);
setRequests((rqs) => [
...rqs,
...requests.map(({ payload }) => payload as RequestPayload),
]);
setResponses((rps) => [
...rps,
...responses.map(({ payload }) => payload as ResponsePayload),
]);
}
break;
case "request":
setRequests((rqs) => [...rqs, payload as RequestPayload]);
break;
case "response":
setResponses((rps) => [...rps, payload as ResponsePayload]);
break;
}
};
ws.addEventListener("message", onMessage);
ws.addEventListener("close", onClose);
ws.addEventListener("open", onOpen);
return () => {
ws.removeEventListener("message", onMessage);
ws.removeEventListener("close", onClose);
ws.removeEventListener("open", onOpen);
};
}, [ws]);
return {
calls: useMemo<RequestResponse[]>(
() =>
requests.map((request) => ({
request: request,
response: responses.find(({ id }) => id === request.id),
})),
[requests, responses]
),
readyState,
clear: () => {
setRequests([]);
setResponses([]);
},
};
}
|
