git.iko.soy/bridge
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bridge/src/lib/useInviter.js
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1import { useState, useCallback, useEffect } from 'react';
2import { toBN } from 'web3-utils';
3import * as azimuth from 'azimuth-js';
4import { FORM_ERROR } from 'final-form';
6import * as wg from 'lib/walletgen';
7import * as tank from 'lib/tank';
8import * as need from 'lib/need';
9import pluralize from 'lib/pluralize';
10import { GAS_LIMITS } from 'lib/constants';
11import {
12 signTransaction,
13 sendSignedTransaction,
14 waitForTransactionConfirm,
15 hexify,
16} from 'lib/txn';
17import useGasPrice from 'lib/useGasPrice';
18import { MIN_PLANET } from 'lib/constants';
19import { safeToWei } from 'lib/lib';
21import { useNetwork } from 'store/network';
22import { useWallet } from 'store/wallet';
23import { usePointCursor } from 'store/pointCursor';
24import { usePointCache } from 'store/pointCache';
26import { WARNING } from 'form/helpers';
28const GAS_LIMIT = GAS_LIMITS.GIFT_PLANET;
29const STATUS = {
30 INPUT: 'INPUT',
31 SENDING: 'SENDING',
32 SUCCESS: 'SUCCESS',
33 FAILURE: 'FAILURE',
34};
36const useInviter = () => {
37 const { contracts, web3, networkType } = useNetwork();
38 const { wallet, walletType, walletHdPath } = useWallet();
39 const { pointCursor } = usePointCursor();
40 const { syncInvites } = usePointCache();
41 const { gasPrice } = useGasPrice();
42 const point = need.point(pointCursor);
44 const [needFunds, setNeedFunds] = useState(null);
45 const [invites, setInvites] = useState([]);
47 const [progress, setProgress] = useState(0);
48 const [txStatus, setTxStatus] = useState(STATUS.INPUT);
50 const isDone = txStatus === STATUS.SUCCESS;
51 useEffect(() => {
52 if (isDone) {
53 syncInvites(point);
54 }
55 }, [isDone, syncInvites, point]);
57 const resetInvites = useCallback(() => {
58 setProgress(0);
59 setInvites([]);
60 setTxStatus(STATUS.INPUT);
61 }, [setProgress, setInvites, setTxStatus]);
63 const generateInvites = useCallback(
64 async numInvites => {
65 const _contracts = contracts.getOrElse(null);
66 const _web3 = web3.getOrElse(null);
67 const _wallet = wallet.getOrElse(null);
68 if (!_contracts || !_web3 || !_wallet) {
69 // not using need because we want a custom error
70 throw new Error('Internal Error: Missing Contracts/Web3/Wallet');
71 }
73 const nonce = await _web3.eth.getTransactionCount(_wallet.address);
74 const chainId = await _web3.eth.net.getId();
75 const planets = await azimuth.delegatedSending.getPlanetsToSend(
76 _contracts,
77 point,
78 numInvites
79 );
81 setTxStatus(STATUS.SENDING);
82 // account for the race condition where invites got used up while we were
83 // composing our target list
84 if (planets.length < numInvites) {
85 // resync invites to the cache, since they're out of date
86 syncInvites(point);
88 setTxStatus(STATUS.FAILURE);
90 return {
91 errors: {
92 [FORM_ERROR]:
93 `Can currently only send ${planets.length} invites. ` +
94 `Please remove invites until you are within the limit.`,
95 },
96 };
97 }
99 // NB(shrugs) - must be processed in serial because main thread, etc
100 let signedInvites = [];
101 let errorCount = 0;
102 for (let i = 0; i < numInvites; i++) {
103 setProgress(x => x + 1);
104 try {
105 const planet = planets[i];
107 const { ticket, owner } = await wg.generateTemporaryTicketAndWallet(
108 MIN_PLANET
109 // we're always giving planets, so generate a ticket of the correct size
110 );
112 const inviteTx = azimuth.delegatedSending.sendPoint(
113 _contracts,
114 point,
115 planet,
116 owner.keys.address
117 );
119 const signedTx = await signTransaction({
120 wallet: _wallet,
121 walletType,
122 walletHdPath,
123 networkType,
124 chainId,
125 nonce: nonce + i,
126 // TODO: ^ make a useTransactionSigner to encapsulate this logic
127 txn: inviteTx,
128 gasPrice: gasPrice.toFixed(), // expects string gwei
129 gasLimit: GAS_LIMIT.toFixed(),
130 });
132 const rawTx = hexify(signedTx.serialize());
134 signedInvites.push({ ticket, signedTx, rawTx });
135 } catch (error) {
136 console.error(error);
137 return {
138 errors: {
139 [WARNING]: `There was an error while generating wallets.`,
140 },
141 };
142 }
143 }
145 const totalCost = toBN(GAS_LIMIT)
146 .mul(toBN(gasPrice))
147 .mul(toBN(numInvites));
148 const tankWasUsed = await tank.ensureFundsFor(
149 _web3,
150 point,
151 _wallet.address,
152 walletType,
153 safeToWei(totalCost, 'gwei'),
154 signedInvites.map(si => si.rawTx),
155 (address, minBalance, balance) =>
156 setNeedFunds({ address, minBalance, balance }),
157 () => setNeedFunds(undefined)
158 );
160 let unsentInvites = [];
161 let confirmedInvites = [];
162 const txAndMailings = signedInvites.map(async invite => {
163 try {
164 const txHash = await sendSignedTransaction(
165 _web3,
166 invite.signedTx,
167 tankWasUsed
168 );
170 await waitForTransactionConfirm(_web3, txHash);
171 confirmedInvites.push(invite);
172 } catch (error) {
173 console.error(error);
174 unsentInvites.push(invite);
175 return;
176 }
177 });
179 await Promise.all(txAndMailings);
181 setTxStatus(STATUS.SUCCESS);
182 setInvites(confirmedInvites);
184 if (unsentInvites.length > 0) {
185 return { errors: { [FORM_ERROR]: unsentInvites } };
186 }
188 if (errorCount > 0) {
189 return {
190 errors: {
191 [WARNING]: `There ${pluralize(
192 errorCount,
193 'was',
194 'were'
195 )} ${pluralize(
196 errorCount,
197 'error'
198 )} while generating wallets. You can still send the invites that generated correctly.`,
199 },
200 };
201 }
202 return { invites: confirmedInvites };
203 },
204 [
205 contracts,
206 gasPrice,
207 networkType,
208 point,
209 syncInvites,
210 wallet,
211 walletHdPath,
212 walletType,
213 web3,
214 ]
215 );
217 return {
218 progress,
219 txStatus,
220 needFunds,
221 invites,
222 generateInvites,
223 resetInvites,
224 };
225};
227export default useInviter;