zerobyte/app/client/api-client/client/client.gen.ts

// This file is auto-generated by @hey-api/openapi-ts

import { createSseClient } from "../core/serverSentEvents.gen";
import type { HttpMethod } from "../core/types.gen";
import { getValidRequestBody } from "../core/utils.gen";
import type { Client, Config, RequestOptions, ResolvedRequestOptions } from "./types.gen";
import {
	buildUrl,
	createConfig,
	createInterceptors,
	getParseAs,
	mergeConfigs,
	mergeHeaders,
	setAuthParams,
} from "./utils.gen";

type ReqInit = Omit<RequestInit, "body" | "headers"> & {
	body?: any;
	headers: ReturnType<typeof mergeHeaders>;
};

export const createClient = (config: Config = {}): Client => {
	let _config = mergeConfigs(createConfig(), config);

	const getConfig = (): Config => ({ ..._config });

	const setConfig = (config: Config): Config => {
		_config = mergeConfigs(_config, config);
		return getConfig();
	};

	const interceptors = createInterceptors<Request, Response, unknown, ResolvedRequestOptions>();

	const beforeRequest = async (options: RequestOptions) => {
		const opts = {
			..._config,
			...options,
			fetch: options.fetch ?? _config.fetch ?? globalThis.fetch,
			headers: mergeHeaders(_config.headers, options.headers),
			serializedBody: undefined,
		};

		if (opts.security) {
			await setAuthParams({
				...opts,
				security: opts.security,
			});
		}

		if (opts.requestValidator) {
			await opts.requestValidator(opts);
		}

		if (opts.body !== undefined && opts.bodySerializer) {
			opts.serializedBody = opts.bodySerializer(opts.body);
		}

		// remove Content-Type header if body is empty to avoid sending invalid requests
		if (opts.body === undefined || opts.serializedBody === "") {
			opts.headers.delete("Content-Type");
		}

		const url = buildUrl(opts);

		return { opts, url };
	};

	const request: Client["request"] = async (options) => {
		// @ts-expect-error
		const { opts, url } = await beforeRequest(options);
		const requestInit: ReqInit = {
			redirect: "follow",
			...opts,
			body: getValidRequestBody(opts),
		};

		let request = new Request(url, requestInit);

		for (const fn of interceptors.request.fns) {
			if (fn) {
				request = await fn(request, opts);
			}
		}

		// fetch must be assigned here, otherwise it would throw the error:
		// TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
		const _fetch = opts.fetch!;
		let response: Response;

		try {
			response = await _fetch(request);
		} catch (error) {
			// Handle fetch exceptions (AbortError, network errors, etc.)
			let finalError = error;

			for (const fn of interceptors.error.fns) {
				if (fn) {
					finalError = (await fn(error, undefined as any, request, opts)) as unknown;
				}
			}

			finalError = finalError || ({} as unknown);

			if (opts.throwOnError) {
				throw finalError;
			}

			// Return error response
			return opts.responseStyle === "data"
				? undefined
				: {
						error: finalError,
						request,
						response: undefined as any,
					};
		}

		for (const fn of interceptors.response.fns) {
			if (fn) {
				response = await fn(response, request, opts);
			}
		}

		const result = {
			request,
			response,
		};

		if (response.ok) {
			const parseAs =
				(opts.parseAs === "auto" ? getParseAs(response.headers.get("Content-Type")) : opts.parseAs) ?? "json";

			if (response.status === 204 || response.headers.get("Content-Length") === "0") {
				let emptyData: any;
				switch (parseAs) {
					case "arrayBuffer":
					case "blob":
					case "text":
						emptyData = await response[parseAs]();
						break;
					case "formData":
						emptyData = new FormData();
						break;
					case "stream":
						emptyData = response.body;
						break;
					case "json":
					default:
						emptyData = {};
						break;
				}
				return opts.responseStyle === "data"
					? emptyData
					: {
							data: emptyData,
							...result,
						};
			}

			let data: any;
			switch (parseAs) {
				case "arrayBuffer":
				case "blob":
				case "formData":
				case "text":
					data = await response[parseAs]();
					break;
				case "json": {
					// Some servers return 200 with no Content-Length and empty body.
					// response.json() would throw; read as text and parse if non-empty.
					const text = await response.text();
					data = text ? JSON.parse(text) : {};
					break;
				}
				case "stream":
					return opts.responseStyle === "data"
						? response.body
						: {
								data: response.body,
								...result,
							};
			}

			if (parseAs === "json") {
				if (opts.responseValidator) {
					await opts.responseValidator(data);
				}

				if (opts.responseTransformer) {
					data = await opts.responseTransformer(data);
				}
			}

			return opts.responseStyle === "data"
				? data
				: {
						data,
						...result,
					};
		}

		const textError = await response.text();
		let jsonError: unknown;

		try {
			jsonError = JSON.parse(textError);
		} catch {
			// noop
		}

		const error = jsonError ?? textError;
		let finalError = error;

		for (const fn of interceptors.error.fns) {
			if (fn) {
				finalError = (await fn(error, response, request, opts)) as string;
			}
		}

		finalError = finalError || ({} as string);

		if (opts.throwOnError) {
			throw finalError;
		}

		// TODO: we probably want to return error and improve types
		return opts.responseStyle === "data"
			? undefined
			: {
					error: finalError,
					...result,
				};
	};

	const makeMethodFn = (method: Uppercase<HttpMethod>) => (options: RequestOptions) => request({ ...options, method });

	const makeSseFn = (method: Uppercase<HttpMethod>) => async (options: RequestOptions) => {
		const { opts, url } = await beforeRequest(options);
		return createSseClient({
			...opts,
			body: opts.body as BodyInit | null | undefined,
			headers: opts.headers as unknown as Record<string, string>,
			method,
			onRequest: async (url, init) => {
				let request = new Request(url, init);
				for (const fn of interceptors.request.fns) {
					if (fn) {
						request = await fn(request, opts);
					}
				}
				return request;
			},
			serializedBody: getValidRequestBody(opts) as BodyInit | null | undefined,
			url,
		});
	};

	return {
		buildUrl,
		connect: makeMethodFn("CONNECT"),
		delete: makeMethodFn("DELETE"),
		get: makeMethodFn("GET"),
		getConfig,
		head: makeMethodFn("HEAD"),
		interceptors,
		options: makeMethodFn("OPTIONS"),
		patch: makeMethodFn("PATCH"),
		post: makeMethodFn("POST"),
		put: makeMethodFn("PUT"),
		request,
		setConfig,
		sse: {
			connect: makeSseFn("CONNECT"),
			delete: makeSseFn("DELETE"),
			get: makeSseFn("GET"),
			head: makeSseFn("HEAD"),
			options: makeSseFn("OPTIONS"),
			patch: makeSseFn("PATCH"),
			post: makeSseFn("POST"),
			put: makeSseFn("PUT"),
			trace: makeSseFn("TRACE"),
		},
		trace: makeMethodFn("TRACE"),
	} as Client;
};