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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,202 @@ | ||
| <template> | ||
| <div class="modal-body"> | ||
| <div v-if="contributionStep === 1"> | ||
| <h3>Step 1 of 4: Approve</h3> | ||
| <div>Please confirm transaction in your wallet</div> | ||
| <div class="loader"></div> | ||
| </div> | ||
| <div v-if="contributionStep === 2"> | ||
| <h3>Step 2 of 4: Contribute</h3> | ||
| <div>Please confirm transaction in your wallet</div> | ||
| <div class="loader"></div> | ||
| </div> | ||
| <div v-if="contributionStep === 3"> | ||
| <h3>Step 3 of 4: Are you being bribed?</h3> | ||
| <button class="btn" @click="vote()">No</button> | ||
| </div> | ||
| <div v-if="contributionStep === 4"> | ||
| <h3>Step 4 of 4: Vote</h3> | ||
| <div>Please send this transaction to {{ currentRound.fundingRoundAddress }} after {{ currentRound.contributionDeadline | formatDate }}:</div> | ||
| <div class="hex">{{ voteTxData }}</div> | ||
| <button class="btn" @click="$emit('close')">Done</button> | ||
| </div> | ||
| </div> | ||
| </template> | ||
|
|
||
| <script lang="ts"> | ||
| import Vue from 'vue' | ||
| import Component from 'vue-class-component' | ||
| import { BigNumber, Contract, FixedNumber, Signer } from 'ethers' | ||
| import { parseFixed } from '@ethersproject/bignumber' | ||
| import { Keypair, PubKey, Message } from 'maci-domainobjs' | ||
| import { CartItem } from '@/api/contributions' | ||
| import { RoundInfo } from '@/api/round' | ||
| import { LOAD_ROUND_INFO } from '@/store/action-types' | ||
| import { REMOVE_CART_ITEM, SET_CONTRIBUTION } from '@/store/mutation-types' | ||
| import { getEventArg } from '@/utils/contracts' | ||
| import { createMessage } from '@/utils/maci' | ||
| import { FundingRound, ERC20, MACI } from '@/api/abi' | ||
| const VOICE_CREDIT_FACTOR = BigNumber.from(10).pow(4 + 18 - 9) | ||
| interface Contributor { | ||
| keypair: Keypair; | ||
| stateIndex: number; | ||
| contribution: FixedNumber; | ||
| voiceCredits: BigNumber; | ||
| } | ||
| @Component | ||
| export default class ContributionModal extends Vue { | ||
| contributionStep = 1 | ||
| private amount: BigNumber = BigNumber.from(0) | ||
| private votes: [number, BigNumber][] = [] | ||
| private contributor?: Contributor | ||
| voteTxData = '' | ||
| mounted() { | ||
| const { nativeTokenDecimals } = this.currentRound | ||
| this.$store.state.cart.forEach((item: CartItem) => { | ||
| const amountRaw = parseFixed(item.amount.toString(), nativeTokenDecimals) | ||
| const voiceCredits = amountRaw.div(VOICE_CREDIT_FACTOR) | ||
| this.votes.push([item.index, voiceCredits]) | ||
| this.amount = this.amount.add(voiceCredits.mul(VOICE_CREDIT_FACTOR)) | ||
| }) | ||
| this.contribute() | ||
| } | ||
| get currentRound(): RoundInfo { | ||
| return this.$store.state.currentRound | ||
| } | ||
| private getSigner(): Signer { | ||
| const provider = this.$store.state.walletProvider | ||
| return provider.getSigner() | ||
| } | ||
| private async contribute() { | ||
| const signer = this.getSigner() | ||
| const { | ||
| nativeTokenAddress, | ||
| nativeTokenDecimals, | ||
| maciAddress, | ||
| fundingRoundAddress, | ||
| } = this.currentRound | ||
| const token = new Contract(nativeTokenAddress, ERC20, signer) | ||
| // Approve transfer | ||
| const allowance = await token.allowance(signer.getAddress(), fundingRoundAddress) | ||
| if (allowance < this.amount) { | ||
| await token.approve(fundingRoundAddress, this.amount) | ||
| } | ||
| this.contributionStep += 1 | ||
| // Contribute | ||
| const contributorKeypair = new Keypair() | ||
| const fundingRound = new Contract(fundingRoundAddress, FundingRound, signer) | ||
| const contributionTx = await fundingRound.contribute( | ||
| contributorKeypair.pubKey.asContractParam(), | ||
| this.amount, | ||
| ) | ||
| // Get state index and amount of voice credits | ||
| const maci = new Contract(maciAddress, MACI, signer) | ||
| const stateIndex = await getEventArg(contributionTx, maci, 'SignUp', '_stateIndex') | ||
| const voiceCredits = await getEventArg(contributionTx, maci, 'SignUp', '_voiceCreditBalance') | ||
| this.contributionStep += 1 | ||
| this.contributor = { | ||
| keypair: contributorKeypair, | ||
| stateIndex, | ||
| contribution: FixedNumber.fromValue(this.amount, nativeTokenDecimals), | ||
| voiceCredits, | ||
| } | ||
| // Set contribution and clear the cart | ||
| this.$store.commit(SET_CONTRIBUTION, this.contributor.contribution) | ||
| this.$store.state.cart.slice().forEach((item) => { | ||
| this.$store.commit(REMOVE_CART_ITEM, item) | ||
| }) | ||
| this.$store.dispatch(LOAD_ROUND_INFO) | ||
| } | ||
| vote() { | ||
| if (!this.contributor) { | ||
| return | ||
| } | ||
| this.contributionStep += 1 | ||
| const { coordinatorPubKey, fundingRoundAddress } = this.currentRound | ||
| const messages: Message[] = [] | ||
| const encPubKeys: PubKey[] = [] | ||
| let nonce = 1 | ||
| for (const [recipientIndex, voiceCredits] of this.votes) { | ||
| const [message, encPubKey] = createMessage( | ||
| this.contributor.stateIndex, | ||
| this.contributor.keypair, null, | ||
| coordinatorPubKey, | ||
| recipientIndex, voiceCredits, nonce, | ||
| ) | ||
| messages.push(message) | ||
| encPubKeys.push(encPubKey) | ||
| nonce += 1 | ||
| } | ||
| const fundingRound = new Contract(fundingRoundAddress, FundingRound) | ||
| this.voteTxData = fundingRound.interface.encodeFunctionData('submitMessageBatch', [ | ||
| messages.map((msg) => msg.asContractParam()), | ||
| encPubKeys.map((key) => key.asContractParam()), | ||
| ]) | ||
| } | ||
| } | ||
| </script> | ||
|
|
||
|
|
||
| <style scoped lang="scss"> | ||
| @import '../styles/vars'; | ||
| .modal-body { | ||
| background-color: $bg-light-color; | ||
| font-family: Inter, sans-serif; | ||
| font-size: 14px; | ||
| padding: 10px 20px 20px; | ||
| text-align: center; | ||
| } | ||
| .loader { | ||
| display: block; | ||
| width: 40px; | ||
| height: 40px; | ||
| margin: 20px auto; | ||
| } | ||
| .loader:after { | ||
| content: " "; | ||
| display: block; | ||
| width: 32px; | ||
| height: 32px; | ||
| margin: 4px; | ||
| border-radius: 50%; | ||
| border: 6px solid #fff; | ||
| border-color: #fff transparent #fff transparent; | ||
| animation: loader 1.2s linear infinite; | ||
| } | ||
| @keyframes loader { | ||
| 0% { | ||
| transform: rotate(0deg); | ||
| } | ||
| 100% { | ||
| transform: rotate(360deg); | ||
| } | ||
| } | ||
| .hex { | ||
| background-color: #666; | ||
| font-family: monospace; | ||
| font-size: 12px; | ||
| height: 50px; | ||
| padding: 5px; | ||
| margin: 10px 0; | ||
| overflow-y: scroll; | ||
| text-align: left; | ||
| word-wrap: break-word; | ||
| } | ||
| </style> |
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