Migrate the faucet page to Redocly (#2243)

* Get basic HTML loading for faucet page

* Add xrpl.js implementation

* Add sidebar and fix throbber

* Add translates

* Try to format sidebar

* Fix formatting

* Support xrpl.js

* Fix links

* Comment out XRPLGuard for now

* Make AMM Devnet faucet work

* Improve readability

* Update all instances of link + fix topnav

* Remove unnecessary file

* Use a more current version of xrpl

* Add missing loader while keys are generating

* Type with xrpl and remove unnecessary script

* Use string interpolation instead of multiple trans

* Move faucets into a json file

* Remove the old faucet code

* Use xrpl-beta directly

* Use dropsToXRP

* Support hooks natively

* Remove AMM-Devnet

* Revert changes to link path

* Revert link changes pt 2

* Revert pt 3

* Use XRPLoader for loading icon

* Fix small mistakes

* Remove unnecessary changes

content/dev-tools/faucets.json

@@ -0,0 +1,28 @@
+{
+    "knownFaucets": [
+        {
+            "id": "faucet-select-testnet",
+            "wsUrl": "wss://s.altnet.rippletest.net:51233/",
+            "jsonRpcUrl": "https://s.altnet.rippletest.net:51234/",
+            "faucetUrl": "faucet.altnet.rippletest.net",
+            "shortName": "Testnet",
+            "desc": "Mainnet-like network for testing applications."
+        },
+        {
+            "id": "faucet-select-devnet",
+            "wsUrl": "wss://s.devnet.rippletest.net:51233/",
+            "jsonRpcUrl": "https://s.devnet.rippletest.net:51234/",
+            "faucetUrl": "faucet.devnet.rippletest.net",
+            "shortName": "Devnet",
+            "desc": "Preview of upcoming amendments."
+        },
+        {
+            "id": "faucet-select-xahau",
+            "wsUrl": "wss://xahau-test.net/",
+            "jsonRpcUrl": "https://xahau-test.net/",
+            "faucetUrl": "xahau-test.net",
+            "shortName": "Xahau-Testnet",
+            "desc": "Hooks (L1 smart contracts) enabled Xahau testnet."
+        }
+    ]
+}

content/dev-tools/xrp-faucets.page.tsx

@@ -0,0 +1,203 @@
+import * as React from 'react';
+import { useTranslate } from '@portal/hooks';
+import { useState } from 'react';
+import { Client, dropsToXrp, Wallet } from 'xrpl'; 
+import * as faucetData from './faucets.json'
+import XRPLoader from 'content/static/components/XRPLoader';
+
+interface FaucetInfo {
+  id: string,
+  wsUrl: string,
+  jsonRpcUrl: string,
+  faucetUrl: string,
+  shortName: string,
+  desc: string,
+}
+
+async function waitForSequence(client: Client, address: string): 
+  Promise<{ sequence: string, balance: string }> 
+  {
+  let response;
+  while (true) {
+    try {
+      response = await client.request({
+        command: "account_info",
+        account: address,
+        ledger_index: "validated"
+      })
+      break
+    } catch(e) {
+      await new Promise(resolve => setTimeout(resolve, 1000))
+    }
+  }
+  console.log(response)
+
+  return { sequence: response.result.account_data.Sequence, balance: response.result.account_data.Balance}
+}
+
+function FaucetEndpoints({ faucet, givenKey } : { faucet: FaucetInfo, givenKey: string}) {
+  const { translate } = useTranslate();
+
+  return (<div key={givenKey}>
+    <h4>{translate(`${faucet.shortName} Servers`)}</h4>
+    <pre>
+      <code>
+        // WebSocket<br/>
+        {faucet.wsUrl}<br/>
+        <br/>
+        // JSON-RPC<br/>
+        {faucet.jsonRpcUrl}
+      </code>
+    </pre>
+  </div>)
+}
+
+function FaucetSidebar({ faucets }: { faucets: FaucetInfo[] }): React.JSX.Element {
+  return (<aside className="right-sidebar col-lg-6 order-lg-4" role="complementary"> 
+    {faucets.map(
+      (faucet) => <FaucetEndpoints faucet={faucet} key={faucet.shortName + " Endpoints"} givenKey={faucet.shortName + " Endpoints"}/>
+    )}
+  </aside>)
+}
+
+export default function XRPFaucets(): React.JSX.Element {
+  const { translate } = useTranslate();
+
+  const faucets: FaucetInfo[] = faucetData.knownFaucets
+
+  const [selectedFaucet, setSelectedFaucet] = useState(faucets[0])
+
+  return (
+    <div className="container-fluid" role="document" id="main_content_wrapper">
+      <div className="row">
+        <FaucetSidebar faucets={faucets}/>
+        <main className="main col-md-7 col-lg-6 order-md-3" role="main" id="main_content_body">
+          <section className="container-fluid pt-3 p-md-3">
+            <h1>{translate("XRP Faucets")}</h1>
+            <div className="content">
+                <p>{translate("These ")}<a href="parallel-networks.html">{translate("parallel XRP Ledger test networks")}</a> {translate("provide platforms for testing changes to the XRP Ledger and software built on it, without using real funds.")}</p>
+                <p>{translate("These funds are intended for")} <strong>{translate("testing")}</strong> {translate("only. Test networks' ledger history and balances are reset as necessary. Devnets may be reset without warning.")}</p>
+                <p>{translate("All balances and XRP on these networks are separate from Mainnet. As a precaution, do not use the Testnet or Devnet credentials on the Mainnet.")}</p>
+
+                <h3>{translate("Choose Network:")}</h3>
+                { faucets.map((net) => (
+                <div className="form-check" key={"network-" + net.shortName}>
+                    <input onChange={() => setSelectedFaucet(net)} className="form-check-input" type="radio" 
+                      name="faucet-selector" id={net.id} checked={selectedFaucet.shortName == net.shortName} />
+                    <label className="form-check-label" htmlFor={net.id}>
+                      <strong>{translate(net.shortName)}</strong>: {translate(net.desc)}
+                    </label>
+                </div>
+                )) }
+
+                <br/>
+                <TestCredentials selectedFaucet={selectedFaucet}/>
+            </div>
+          </section>
+        </main>
+      </div>
+    </div>
+  )
+}
+
+async function generateFaucetCredentialsAndUpdateUI(
+  selectedFaucet: FaucetInfo, 
+  setButtonClicked: React.Dispatch<React.SetStateAction<boolean>>,
+  setGeneratedCredentialsFaucet: React.Dispatch<React.SetStateAction<string>>, 
+  setAddress: React.Dispatch<React.SetStateAction<string>>, 
+  setSecret: React.Dispatch<React.SetStateAction<string>>, 
+  setBalance: React.Dispatch<React.SetStateAction<string>>, 
+  setSequence: React.Dispatch<React.SetStateAction<string>>): Promise<void> {
+
+  setButtonClicked(true)
+
+  // Clear existing credentials
+  setGeneratedCredentialsFaucet(selectedFaucet.shortName)
+  setAddress("")
+  setSecret("")
+  setBalance("")
+  setSequence("")
+  const { translate } = useTranslate();
+
+
+  const wallet = Wallet.generate()
+  
+  const client = new Client(selectedFaucet.wsUrl)
+  await client.connect()
+
+  try {
+    setAddress(wallet.address)
+    setSecret(wallet.seed)
+
+    await client.fundWallet(wallet, { faucetHost: selectedFaucet.faucetUrl, usageContext: "xrpl.org-faucet" })
+
+    const response = await waitForSequence(client, wallet.address)
+
+    setSequence(response.sequence)
+    setBalance(response.balance)
+
+  } catch (e) {
+    alert(translate(`There was an error with the ${selectedFaucet.shortName} faucet. Please try again.`))
+  }
+  setButtonClicked(false)
+}
+
+function TestCredentials({selectedFaucet}) {
+  const { translate } = useTranslate();
+
+  const [generatedCredentialsFaucet, setGeneratedCredentialsFaucet] = useState("")
+  const [address, setAddress] = useState("")
+  const [secret, setSecret] = useState("")
+  const [balance, setBalance] = useState("")
+  const [sequence, setSequence] = useState("")
+  const [buttonClicked, setButtonClicked] = useState(false)
+
+  return (<div>
+      {/* <XRPLGuard> TODO: Re-add this once we find a good way to avoid browser/server mismatch errors */}
+        <div className="btn-toolbar" role="toolbar" aria-label="Button"> 
+          <button id="generate-creds-button" onClick={
+              () => generateFaucetCredentialsAndUpdateUI(
+                selectedFaucet,
+                setButtonClicked, 
+                setGeneratedCredentialsFaucet, 
+                setAddress, 
+                setSecret, 
+                setBalance, 
+                setSequence)
+            } className="btn btn-primary mr-2 mb-2">
+              {translate(`Generate ${selectedFaucet.shortName} credentials`)}
+          </button>
+        </div>
+      {/* </XRPLGuard> */}
+
+
+      {generatedCredentialsFaucet && <div id="your-credentials">
+        <h2>{translate(`Your ${generatedCredentialsFaucet} Credentials`)}</h2>
+      </div>}
+
+      {(buttonClicked && address === "") && <XRPLoader message={translate("Generating keys..")}/>}
+
+      {address && <div id="address"><h3>{translate("Address")}</h3>{address}</div>}
+
+      {secret && <div id="secret"><h3>{translate("Secret")}</h3>{secret}</div>}
+      
+      {(address && !balance) && (<div>
+        <br/>
+        <XRPLoader message={translate("Funding account...")}/>
+      </div>)}
+      
+      {balance && <div id="balance">
+        <h3>{translate("Balance")}</h3>
+        {dropsToXrp(balance).toLocaleString("en")} {translate("XRP")}
+      </div>}
+      
+      {sequence && <div id="sequence">
+        <h3>{translate("Sequence Number")}</h3>
+        {sequence}
+      </div>}
+      
+      {(secret && !sequence) && <XRPLoader message={translate("Waiting...")}/>}
+
+    </div>
+  )
+}

content/sidebars.yaml

@@ -667,6 +667,8 @@
           - label: xrp-ledger.toml Checker
           - label: Domain Verification Checker
           - label: XRP Faucets
+            href: /dev-tools/xrp-faucets
+            page: /dev-tools/xrp-faucets.page.tsx
           - label: Transaction Sender
       - label: XRPL Learning Portal
         href: https://learn.xrpl.org/

content/static/components/XRPLoader.tsx

@@ -0,0 +1,13 @@
+import * as React from 'react';
+
+export interface XRPLoaderProps {
+    message?: string
+}
+
+export default function XRPLoader(props: XRPLoaderProps) {
+  return (
+  <div id="loader" style={{ display: "inline" }}>
+    <img alt="(loading)" className="throbber" src="/img/xrp-loader-96.png" />
+    {props.message}
+  </div>);
+}

content/static/js/type-helpers.ts

@@ -0,0 +1,27 @@
+type TypeofType =
+  | 'bigint'
+  | 'boolean'
+  | 'function'
+  | 'number'
+  | 'object'
+  | 'string'
+  | 'undefined'
+
+type TypeCheckFn = (thing: unknown) => boolean
+
+
+/**
+ * Curried function for creating typeof checker functions.
+ * @param {string} type The type to check against (eg 'string', 'number')
+ * @param {function} [secondaryTest] Optional additional test function to run in cases where a type match isn't always a sure indicator.
+ * @returns {boolean} Whether the value matches the type
+ */
+const isTypeof =
+  <T>(type: TypeofType, secondaryTest?: TypeCheckFn) =>
+  (thing: unknown): thing is T => {
+    const matches = typeof thing === type
+    if (matches && secondaryTest) return secondaryTest(thing)
+    return matches
+  }
+
+export const isFunction = isTypeof<(...args: unknown[]) => unknown>('function')

content/static/js/xrpl-guard.tsx

@@ -0,0 +1,85 @@
+import { useTranslate } from '@portal/hooks';
+import { isFunction } from './type-helpers'
+import { FC } from 'react'
+import { useEffect, useState } from 'react'
+import React = require('react');
+import XRPLoader from '../components/XRPLoader';
+
+export const MIN_LOADER_MS = 1250
+export const DEFAULT_TIMEOUT = 1000
+
+const sleep = (delay) => new Promise((resolve) => setTimeout(resolve, delay))
+
+/**
+ * Evaluate a check function will eventually resolve to `true`
+ *
+ * If check is initially true, immediatly return `isTrue`
+ * If check is initially false and becomes true, return true after `timeoutMs`
+ */
+export const useThrottledCheck = (
+  check: () => boolean,
+  timeoutMs = DEFAULT_TIMEOUT,
+) => {
+  const [isTrue, setIsTrue] = useState(() => check())
+
+  useEffect(() => {
+    const doCheck = async (tries = 0) => {
+      const waitMs = 250,
+        waitedMs = tries * waitMs
+
+      if (check()) {
+        const debouncedDelay =
+          waitedMs < timeoutMs ? timeoutMs - (waitedMs % timeoutMs) : 0
+
+        setTimeout(() => setIsTrue(true), debouncedDelay)
+        return
+      }
+
+      await sleep(waitMs)
+
+      doCheck(tries + 1)
+    }
+
+    if (!isTrue) {
+      doCheck()
+    }
+  }, [check, isTrue])
+
+  return isTrue
+}
+
+/**
+ * Show a loading spinner if XRPL isn't loaded yet by
+ * waiting at least MIN_LOADER_MS before rendering children
+ * in order to make the visual loading transition smooth
+ *
+ * e.g. if xrpl loads after 500ms, wait
+ * another MIN_LOADER_MS - 500ms before rendering children
+ *
+ * @param {function} testCheck for testing only, a check function to use
+ */
+export const XRPLGuard: FC<{ testCheck?: () => boolean, children }> = ({
+  testCheck,
+  children,
+}) => {
+
+  const { translate } = useTranslate();
+  const isXRPLLoaded = useThrottledCheck(
+      // @ts-expect-error - xrpl is added via a script tag (TODO: Directly import when xrpl.js 3.0 is released)
+      testCheck ?? (() => typeof xrpl === 'object'),
+      MIN_LOADER_MS,
+  )
+
+  return (
+    <>
+      {isXRPLLoaded ? (
+        isFunction(children) ? (
+          children()
+        ) : (
+          children
+        )
+      ) : <XRPLoader message={translate("Loading...")}/>
+        }
+    </>
+  )
+}

content/top-nav.yaml

@@ -67,7 +67,8 @@
         - label: Send XRP
           href: /tutorials/send-xrp/
         - label: XRP Faucets
-          href: /docs/dev-tools/xrp-faucets/
+          href: /dev-tools/xrp-faucets
+          page: /dev-tools/xrp-faucets.page.tsx
         - label: XRPL Servers
           href: /infrastructure/xrpl-servers/
     - label: Dev Tools