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import { assert } from "./deps.ts";
/** Cookie header value attribute delimiter. */const ATTR_DELIM = "; ";
/** Turns a set-cookie header into a useable cookie header string value. */function getSetCookie(headers: Headers): string {  return [...headers.entries()]    .filter(([key]) => key === "set-cookie")    .map(([_, value]) => value.split(ATTR_DELIM)[0])    .join(ATTR_DELIM);}
export interface ClientInit {  /** Switch IP address or host. */  host: string;  /**   * Switch REST API version.   * If not defined in-code, defaults to `ARUBAOS_CX_VERSION` environment variable.   * If not defined as an environment variable, defaults to `latest`.   */  version?: "v1" | "v10.04" | "v10.08" | "v10.09" | "v10.10" | "latest";  /**   * Switch login username.   * If not defined in-code, defaults to `ARUBAOS_CX_USERNAME` environment variable.   * If not defined as an environment variable, defaults to `admin`.   */  username?: string;  /**   * Switch login password.   * If not defined in-code, defaults to `ARUBAOS_CX_PASSWORD` environment variable.   * If not defined as an environment variable, defaults to an empty string.   */  password?: string;}
/** * Contains methods for logging in/out and making authenticated requests. * Recommended for multiple requests. * * Example: * ```ts * import { Client } from "https://deno.land/x/arubaos_cx@$VERSION/mod.ts"; * * const client = new Client({ host: "10.20.30.40" }); * await client.login(); * const response1 = await client.fetch("/system"); * const response2 = await client.fetch("/firmware"); * await client.logout(); * ``` */export class Client {  #username: string;  #password: string;  #baseURL: URL;  #cookie?: string;
  constructor(init: ClientInit) {    const version = init.version ??      Deno.env.get("ARUBAOS_CX_VERSION") ?? "latest";    this.#username = init.username ??      Deno.env.get("ARUBAOS_CX_USERNAME") ?? "admin";    this.#password = init.password ??      Deno.env.get("ARUBAOS_CX_PASSWORD") ?? "";    this.#baseURL = new URL("/rest/" + version, "https://" + init.host);  }
  /** Creates an authenticated request. */  #request(path: string, init?: RequestInit): Request {    const request = new Request(this.#baseURL + path, init);    if (this.#cookie) {      request.headers.set("cookie", this.#cookie!);    }    return request;  }
  /** Performs an authenticated request. */  async fetch(path: string, init?: RequestInit): Promise<Response> {    return await fetch(this.#request(path, init));  }
  /** Logs the user in and stores the authentication cookie. */  async login(): Promise<void> {    const params = new URLSearchParams({      username: this.#username,      password: this.#password,    });    const response = await this.fetch("/login?" + params, {      method: "POST",    });    /** Ensures authentication succeeded. If not, prints the provided reason. */    assert(response.ok, await response.text());    this.#cookie = getSetCookie(response.headers);  }
  /** Logs the user out and removes the authentication cookie. */  async logout(): Promise<void> {    const response = await this.fetch("/logout", {      method: "POST",    });    /** Ensures deauthentication succeeded. If not, prints the provided reason. */    assert(response.ok, await response.text());    this.#cookie = undefined;  }
  /** Performs a request inbetween automatic login/logout. */  async fetchOnce(path: string, init?: RequestInit): Promise<Response> {    await this.login();    const response = await this.fetch(path, init);    await this.logout();    return response;  }}
/** * Creates a client and performs a request inbetween automatic login/logout. * Recommended for single requests. * * Example: * ```ts * import { fetchOnce } from "https://deno.land/x/arubaos_cx@$VERSION/mod.ts"; * * const response = await fetchOnce({ host: "10.20.30.40" }, "/system"); * ``` */export async function fetchOnce(  clientInit: ClientInit,  path: string,  init?: RequestInit,): Promise<Response> {  const client = new Client(clientInit);  return await client.fetchOnce(path, init);}