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/*
This file is part of TALER
(C) 2015 GNUnet e.V.
TALER is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
TALER is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
/**
* Page shown to the user to confirm entering
* a contract.
*/
/**
* Imports.
*/
import * as i18n from "../../i18n";
import {
ExchangeRecord,
ProposalDownloadRecord,
} from "../../dbTypes";
import { ContractTerms } from "../../talerTypes";
import {
CheckPayResult,
} from "../../walletTypes";
import { renderAmount } from "../renderHtml";
import * as wxApi from "../wxApi";
import * as React from "react";
import * as ReactDOM from "react-dom";
import URI = require("urijs");
interface DetailState {
collapsed: boolean;
}
interface DetailProps {
contractTerms: ContractTerms;
collapsed: boolean;
exchanges: ExchangeRecord[] | undefined;
}
class Details extends React.Component<DetailProps, DetailState> {
constructor(props: DetailProps) {
super(props);
console.log("new Details component created");
this.state = {
collapsed: props.collapsed,
};
console.log("initial state:", this.state);
}
render() {
if (this.state.collapsed) {
return (
<div>
<button className="linky"
onClick={() => { this.setState({collapsed: false} as any); }}>
<i18n.Translate wrap="span">
show more details
</i18n.Translate>
</button>
</div>
);
} else {
return (
<div>
<button className="linky"
onClick={() => this.setState({collapsed: true} as any)}>
show less details
</button>
<div>
{i18n.str`Accepted exchanges:`}
<ul>
{this.props.contractTerms.exchanges.map(
(e) => <li>{`${e.url}: ${e.master_pub}`}</li>)}
</ul>
{i18n.str`Exchanges in the wallet:`}
<ul>
{(this.props.exchanges || []).map(
(e: ExchangeRecord) =>
<li>{`${e.baseUrl}: ${e.masterPublicKey}`}</li>)}
</ul>
</div>
</div>);
}
}
}
interface ContractPromptProps {
proposalId?: number;
contractUrl?: string;
sessionId?: string;
resourceUrl?: string;
}
interface ContractPromptState {
proposalId: number | undefined;
proposal: ProposalDownloadRecord | undefined;
error: string | null;
payDisabled: boolean;
alreadyPaid: boolean;
exchanges: ExchangeRecord[] | undefined;
/**
* Don't request updates to proposal state while
* this is set to true, to avoid UI flickering
* when pressing pay.
*/
holdCheck: boolean;
payStatus?: CheckPayResult;
replaying: boolean;
payInProgress: boolean;
}
class ContractPrompt extends React.Component<ContractPromptProps, ContractPromptState> {
constructor(props: ContractPromptProps) {
super(props);
this.state = {
alreadyPaid: false,
error: null,
exchanges: undefined,
holdCheck: false,
payDisabled: true,
payInProgress: false,
proposal: undefined,
proposalId: props.proposalId,
replaying: false,
};
}
componentWillMount() {
this.update();
}
componentWillUnmount() {
// FIXME: abort running ops
}
async update() {
if (this.props.resourceUrl) {
const p = await wxApi.queryPaymentByFulfillmentUrl(this.props.resourceUrl);
console.log("query for resource url", this.props.resourceUrl, "result", p);
if (p) {
if (p.lastSessionSig === undefined || p.lastSessionSig === this.props.sessionId) {
const nextUrl = new URI(p.contractTerms.fulfillment_url);
nextUrl.addSearch("order_id", p.contractTerms.order_id);
if (p.lastSessionSig) {
nextUrl.addSearch("session_sig", p.lastSessionSig);
}
location.replace(nextUrl.href());
return;
} else {
// We're in a new session
this.setState({ replaying: true });
const payResult = await wxApi.submitPay(p.contractTermsHash, this.props.sessionId);
console.log("payResult", payResult);
location.replace(payResult.nextUrl);
return;
}
}
}
let proposalId = this.props.proposalId;
if (proposalId === undefined) {
if (this.props.contractUrl === undefined) {
// Nothing we can do ...
return;
}
proposalId = await wxApi.downloadProposal(this.props.contractUrl);
}
const proposal = await wxApi.getProposal(proposalId);
this.setState({ proposal, proposalId });
this.checkPayment();
const exchanges = await wxApi.getExchanges();
this.setState({ exchanges });
}
async checkPayment() {
window.setTimeout(() => this.checkPayment(), 500);
if (this.state.holdCheck) {
return;
}
const proposalId = this.state.proposalId;
if (proposalId === undefined) {
return;
}
const payStatus = await wxApi.checkPay(proposalId);
if (payStatus.status === "insufficient-balance") {
const msgInsufficient = i18n.str`You have insufficient funds of the requested currency in your wallet.`;
// tslint:disable-next-line:max-line-length
const msgNoMatch = i18n.str`You do not have any funds from an exchange that is accepted by this merchant. None of the exchanges accepted by the merchant is known to your wallet.`;
if (this.state.exchanges && this.state.proposal) {
const acceptedExchangePubs = this.state.proposal.contractTerms.exchanges.map((e) => e.master_pub);
const ex = this.state.exchanges.find((e) => acceptedExchangePubs.indexOf(e.masterPublicKey) >= 0);
if (ex) {
this.setState({ error: msgInsufficient });
} else {
this.setState({ error: msgNoMatch });
}
} else {
this.setState({ error: msgInsufficient });
}
this.setState({ payDisabled: true });
} else if (payStatus.status === "paid") {
this.setState({ alreadyPaid: true, payDisabled: false, error: null, payStatus });
} else {
this.setState({ payDisabled: false, error: null, payStatus });
}
}
async doPayment() {
const proposal = this.state.proposal;
this.setState({holdCheck: true});
if (!proposal) {
return;
}
const proposalId = proposal.id;
if (proposalId === undefined) {
console.error("proposal has no id");
return;
}
console.log("confirmPay with", proposalId, "and", this.props.sessionId);
let payResult;
try {
payResult = await wxApi.confirmPay(proposalId, this.props.sessionId);
} catch (e) {
return;
}
console.log("payResult", payResult);
document.location.href = payResult.nextUrl;
this.setState({ holdCheck: true });
}
render() {
if (this.props.contractUrl === undefined && this.props.proposalId === undefined) {
return <span>Error: either contractUrl or proposalId must be given</span>;
}
if (this.state.replaying) {
return <span>Re-submitting existing payment</span>;
}
if (this.state.proposalId === undefined) {
return <span>Downloading contract terms</span>;
}
if (!this.state.proposal) {
return <span>...</span>;
}
const c = this.state.proposal.contractTerms;
let merchantName;
if (c.merchant && c.merchant.name) {
merchantName = <strong>{c.merchant.name}</strong>;
} else {
merchantName = <strong>(pub: {c.merchant_pub})</strong>;
}
const amount = <strong>{renderAmount(c.amount)}</strong>;
console.log("payStatus", this.state.payStatus);
let products = null;
if (c.products.length) {
products = (
<>
<span>The following items are included:</span>
<ul>
{c.products.map(
(p: any, i: number) => (<li key={i}>{p.description}: {renderAmount(p.price)}</li>))
}
</ul>
</>
);
}
return (
<>
<div>
<i18n.Translate wrap="p">
The merchant <span>{merchantName}</span> {" "}
offers you to purchase:
</i18n.Translate>
<div style={{"text-align": "center"}}>
<strong>{c.summary}</strong>
</div>
<strong></strong>
{products}
{(this.state.payStatus && this.state.payStatus.coinSelection)
? <p>
The total price is <span>{amount}</span>{" "}
(plus <span>{renderAmount(this.state.payStatus.coinSelection.totalFees)}</span> fees).
</p>
:
<p>The total price is <span>{amount}</span>.</p>
}
</div>
<button className="pure-button button-success"
disabled={this.state.payDisabled}
onClick={() => this.doPayment()}>
{i18n.str`Confirm payment`}
</button>
<div>
{(this.state.alreadyPaid
? <p className="okaybox">
You already paid for this, clicking "Confirm payment" will not cost money again.
</p>
: <p />)}
{(this.state.error ? <p className="errorbox">{this.state.error}</p> : <p />)}
</div>
<Details exchanges={this.state.exchanges} contractTerms={c} collapsed={!this.state.error}/>
</>
);
}
}
document.addEventListener("DOMContentLoaded", () => {
const url = new URI(document.location.href);
const query: any = URI.parseQuery(url.query());
let proposalId;
try {
proposalId = JSON.parse(query.proposalId);
} catch {
// ignore error
}
const sessionId = query.sessionId;
const contractUrl = query.contractUrl;
const resourceUrl = query.resourceUrl;
ReactDOM.render(
<ContractPrompt {...{ proposalId, contractUrl, sessionId, resourceUrl }}/>,
document.getElementById("contract")!);
});
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