gristlabs_grist-core/app/client/ui/BillingForm.ts
George Gevoian f2e11a5329 (core) Migrate to Stripe v8 + implement discount codes
Summary:
New plan signups now include a discount code field in
the signup form. If a valid discount code is entered, a
discount will be applied on the confirmation page.

Test Plan: Browser and server tests.

Reviewers: dsagal

Reviewed By: dsagal

Subscribers: jarek

Differential Revision: https://phab.getgrist.com/D3076
2021-10-20 12:34:03 -07:00

582 lines
20 KiB
TypeScript
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

import {get as getBrowserGlobals} from 'app/client/lib/browserGlobals';
import {reportError} from 'app/client/models/AppModel';
import {BillingModel} from 'app/client/models/BillingModel';
import * as css from 'app/client/ui/BillingPageCss';
import {colors, vars} from 'app/client/ui2018/cssVars';
import {IOption, select} from 'app/client/ui2018/menus';
import {IBillingAddress, IBillingCard, IBillingCoupon, IBillingOrgSettings,
IFilledBillingAddress} from 'app/common/BillingAPI';
import {checkSubdomainValidity} from 'app/common/orgNameUtils';
import * as roles from 'app/common/roles';
import {Organization} from 'app/common/UserAPI';
import {Computed, Disposable, dom, DomArg, IDisposableOwnerT, makeTestId, Observable, styled} from 'grainjs';
import sortBy = require('lodash/sortBy');
const G = getBrowserGlobals('Stripe', 'window');
const testId = makeTestId('test-bp-');
const states = [
'AK', 'AL', 'AR', 'AS', 'AZ', 'CA', 'CO', 'CT', 'DC', 'DE', 'FL', 'FM', 'GA', 'GU', 'HI',
'IA', 'ID', 'IL', 'IN', 'KS', 'KY', 'LA', 'MA', 'MD', 'ME', 'MH', 'MI', 'MN', 'MO', 'MP',
'MS', 'MT', 'NC', 'ND', 'NE', 'NH', 'NJ', 'NM', 'NV', 'NY', 'OH', 'OK', 'OR', 'PA', 'PR',
'PW', 'RI', 'SC', 'SD', 'TN', 'TX', 'UT', 'VA', 'VI', 'VT', 'WA', 'WI', 'WV', 'WY'
];
export interface IFormData {
address?: IFilledBillingAddress;
card?: IBillingCard;
token?: string;
settings?: IBillingOrgSettings;
coupon?: IBillingCoupon;
}
// Optional autofill vales to pass in to the BillingForm constructor.
interface IAutofill {
address?: Partial<IBillingAddress>;
settings?: Partial<IBillingOrgSettings>;
// Note that the card name is the only value that may be initialized, since the other card
// information is sensitive.
card?: Partial<IBillingCard>;
coupon?: Partial<IBillingCoupon>;
}
// An object containing a function to check the validity of its observable value.
// The get function should return the observable value or throw an error if it is invalid.
interface IValidated<T> {
value: Observable<T>;
checkValidity: (value: T) => void|Promise<void>; // Should throw with message on invalid values.
isInvalid: Observable<boolean>;
get: () => T|Promise<T>;
}
export class BillingForm extends Disposable {
private readonly _address: BillingAddressForm|null;
private readonly _discount: BillingDiscountForm|null;
private readonly _payment: BillingPaymentForm|null;
private readonly _settings: BillingSettingsForm|null;
constructor(
org: Organization|null,
billingModel: BillingModel,
options: {payment: boolean, address: boolean, settings: boolean, domain: boolean, discount: boolean},
autofill: IAutofill = {}
) {
super();
// Get the number of forms - if more than one is present subheaders should be visible.
const count = [options.settings, options.address, options.payment]
.reduce((acc, x) => acc + (x ? 1 : 0), 0);
// Org settings form.
this._settings = options.settings ? new BillingSettingsForm(billingModel, org, {
showHeader: count > 1,
showDomain: options.domain,
autofill: autofill.settings
}) : null;
// Discount form.
this._discount = options.discount ? new BillingDiscountForm(billingModel, {
autofill: autofill.coupon
}) : null;
// Address form.
this._address = options.address ? new BillingAddressForm({
showHeader: count > 1,
autofill: autofill.address
}) : null;
// Payment form.
this._payment = options.payment ? new BillingPaymentForm({
showHeader: count > 1,
autofill: autofill.card
}) : null;
}
public buildDom() {
return [
this._settings ? this._settings.buildDom() : null,
this._discount ? this._discount.buildDom() : null,
this._address ? this._address.buildDom() : null,
this._payment ? this._payment.buildDom() : null
];
}
// Note that this will throw if any values are invalid.
public async getFormData(): Promise<IFormData> {
const settings = this._settings ? await this._settings.getSettings() : undefined;
const address = this._address ? await this._address.getAddress() : undefined;
const cardInfo = this._payment ? await this._payment.getCardAndToken() : undefined;
const coupon = this._discount ? await this._discount.getCoupon() : undefined;
return {
settings,
address,
coupon,
token: cardInfo ? cardInfo.token : undefined,
card: cardInfo ? cardInfo.card : undefined
};
}
}
// Abstract class which includes helper functions for creating a form whose values are verified.
abstract class BillingSubForm extends Disposable {
protected readonly formError: Observable<string> = Observable.create(this, '');
constructor() {
super();
}
// Creates an input whose value is validated on blur. Input text turns red and the validation
// error is shown on negative validation.
protected billingInput(validated: IValidated<string>, ...args: Array<DomArg<any>>) {
return css.billingInput(validated.value, {onInput: true},
css.billingInput.cls('-invalid', validated.isInvalid),
dom.on('blur', () => this._onBlur(validated)),
...args
);
}
protected async _onBlur(validated: IValidated<string>): Promise<void> {
// Do not show empty input errors on blur.
if (validated.value.get().length === 0) { return; }
try {
await validated.get();
this.formError.set('');
} catch (e) {
this.formError.set(e.message);
}
}
}
/**
* Creates the payment card entry form using Stripe Elements.
*/
class BillingPaymentForm extends BillingSubForm {
private readonly _stripe: any;
private readonly _elements: any;
// Stripe Element fields. Set when the elements are mounted to the dom.
private readonly _numberElement: Observable<any> = Observable.create(this, null);
private readonly _expiryElement: Observable<any> = Observable.create(this, null);
private readonly _cvcElement: Observable<any> = Observable.create(this, null);
private readonly _name: IValidated<string> = createValidated(this, checkRequired('Name'));
constructor(private readonly _options: {
showHeader: boolean;
autofill?: Partial<IBillingCard>;
}) {
super();
const autofill = this._options.autofill;
const stripeAPIKey = G.window.gristConfig.stripeAPIKey;
try {
this._stripe = G.Stripe(stripeAPIKey);
this._elements = this._stripe.elements();
} catch (err) {
reportError(err);
}
if (autofill) {
this._name.value.set(autofill.name || '');
}
}
public buildDom() {
return this._stripe ? css.paymentBlock(
this._options.showHeader ? css.paymentSubHeader('Payment Method') : null,
css.paymentRow(
css.paymentField(
css.paymentLabel('Cardholder Name'),
this.billingInput(this._name, testId('card-name')),
)
),
css.paymentRow(
css.paymentField(
css.paymentLabel({for: 'number-element'}, 'Card Number'),
css.stripeInput({id: 'number-element'}), // A Stripe Element will be inserted here.
testId('card-number')
)
),
css.paymentRow(
css.paymentField(
css.paymentLabel({for: 'expiry-element'}, 'Expiry Date'),
css.stripeInput({id: 'expiry-element'}), // A Stripe Element will be inserted here.
testId('card-expiry')
),
css.paymentSpacer(),
css.paymentField(
css.paymentLabel({for: 'cvc-element'}, 'CVC / CVV Code'),
css.stripeInput({id: 'cvc-element'}), // A Stripe Element will be inserted here.
testId('card-cvc')
)
),
css.inputError(
dom.text(this.formError),
testId('payment-form-error')
),
() => { setTimeout(() => this._mountStripeUI(), 0); }
) : null;
}
public async getCardAndToken(): Promise<{card: IBillingCard, token: string}> {
// Note that we call createToken using only the card number element as the first argument
// in accordance with the Stripe API:
//
// "If applicable, the Element pulls data from other Elements youve created on the same
// instance of elements to tokenize—you only need to supply one element as the parameter."
//
// Source: https://stripe.com/docs/stripe-js/reference#stripe-create-token
try {
const result = await this._stripe.createToken(this._numberElement.get(), {name: await this._name.get()});
if (result.error) { throw new Error(result.error.message); }
return {
card: result.token.card,
token: result.token.id
};
} catch (e) {
this.formError.set(e.message);
throw e;
}
}
private _mountStripeUI() {
// Mount Stripe Element fields.
this._mountStripeElement(this._numberElement, 'cardNumber', 'number-element');
this._mountStripeElement(this._expiryElement, 'cardExpiry', 'expiry-element');
this._mountStripeElement(this._cvcElement, 'cardCvc', 'cvc-element');
}
private _mountStripeElement(elemObs: Observable<any>, stripeName: string, elementId: string): void {
// For details on applying custom styles to Stripe Elements, see:
// https://stripe.com/docs/stripe-js/reference#element-options
const classes = {base: css.stripeInput.className};
const style = {
base: {
'::placeholder': {
color: colors.slate.value
},
'fontSize': vars.mediumFontSize.value,
'fontFamily': vars.fontFamily.value
}
};
if (!elemObs.get()) {
const stripeInst = this._elements.create(stripeName, {classes, style});
stripeInst.addEventListener('change', (event: any) => {
if (event.error) { this.formError.set(event.error.message); }
});
elemObs.set(stripeInst);
}
elemObs.get().mount(`#${elementId}`);
}
}
/**
* Creates the company address entry form. Used by BillingPaymentForm when billing address is needed.
*/
class BillingAddressForm extends BillingSubForm {
private readonly _address1: IValidated<string> = createValidated(this, checkRequired('Address'));
private readonly _address2: IValidated<string> = createValidated(this, () => undefined);
private readonly _city: IValidated<string> = createValidated(this, checkRequired('City'));
private readonly _state: IValidated<string> = createValidated(this, checkFunc(
(val) => !this._isUS.get() || Boolean(val), `State is required.`));
private readonly _postal: IValidated<string> = createValidated(this, checkFunc(
(val) => !this._isUS.get() || Boolean(val), 'Zip code is required.'));
private readonly _countryCode: IValidated<string> = createValidated(this, checkRequired('Country'));
private _isUS = Computed.create(this, this._countryCode.value, (use, code) => (code === 'US'));
private readonly _countries: Array<IOption<string>> = getCountries();
constructor(private readonly _options: {
showHeader: boolean;
autofill?: Partial<IBillingAddress>;
}) {
super();
const autofill = this._options.autofill;
if (autofill) {
this._address1.value.set(autofill.line1 || '');
this._address2.value.set(autofill.line2 || '');
this._city.value.set(autofill.city || '');
this._state.value.set(autofill.state || '');
this._postal.value.set(autofill.postal_code || '');
}
this._countryCode.value.set(autofill?.country || 'US');
}
public buildDom() {
return css.paymentBlock(
this._options.showHeader ? css.paymentSubHeader('Company Address') : null,
css.paymentRow(
css.paymentField(
css.paymentLabel('Street Address'),
this.billingInput(this._address1, testId('address-street'))
)
),
css.paymentRow(
css.paymentField(
css.paymentLabel('Suite / Unit'),
this.billingInput(this._address2, testId('address-suite'))
)
),
css.paymentRow(
css.paymentField(
css.paymentLabel('City'),
this.billingInput(this._city, testId('address-city'))
),
css.paymentSpacer(),
css.paymentField({style: 'flex: 0.5 1 0;'},
dom.domComputed(this._isUS, (isUs) =>
isUs ? [
css.paymentLabel('State'),
cssSelect(this._state.value, states),
] : [
css.paymentLabel('State / Region'),
this.billingInput(this._state),
]
),
testId('address-state')
)
),
css.paymentRow(
css.paymentField(
css.paymentLabel(dom.text((use) => use(this._isUS) ? 'Zip Code' : 'Postal Code')),
this.billingInput(this._postal, testId('address-zip'))
)
),
css.paymentRow(
css.paymentField(
css.paymentLabel('Country'),
cssSelect(this._countryCode.value, this._countries),
testId('address-country')
)
),
css.inputError(
dom.text(this.formError),
testId('address-form-error')
)
);
}
// Throws if any value is invalid. Returns a customer address as accepted by the customer
// object in stripe.
// For reference: https://stripe.com/docs/api/customers/object#customer_object-address
public async getAddress(): Promise<IFilledBillingAddress|undefined> {
try {
return {
line1: await this._address1.get(),
line2: await this._address2.get(),
city: await this._city.get(),
state: await this._state.get(),
postal_code: await this._postal.get(),
country: await this._countryCode.get(),
};
} catch (e) {
this.formError.set(e.message);
throw e;
}
}
}
/**
* Creates the billing settings form, including the org name and the org subdomain values.
*/
class BillingSettingsForm extends BillingSubForm {
private readonly _name: IValidated<string> = createValidated(this, checkRequired('Company name'));
// Only verify the domain if it is shown.
private readonly _domain: IValidated<string> = createValidated(this,
this._options.showDomain ? d => this._verifyDomain(d) : () => undefined);
constructor(
private readonly _billingModel: BillingModel,
private readonly _org: Organization|null,
private readonly _options: {
showHeader: boolean;
showDomain: boolean;
autofill?: Partial<IBillingOrgSettings>;
}
) {
super();
const autofill = this._options.autofill;
if (autofill) {
this._name.value.set(autofill.name || '');
this._domain.value.set(autofill.domain || '');
}
}
public buildDom() {
const noEditAccess = Boolean(this._org && !roles.canEdit(this._org.access));
const hasDomain = Boolean(this._options.autofill?.domain);
return css.paymentBlock(
this._options.showHeader ? css.paymentSubHeader('Team Site') : null,
css.paymentRow(
css.paymentField(
this.billingInput(this._name,
dom.boolAttr('disabled', () => noEditAccess),
testId('settings-name')
),
noEditAccess ? css.paymentFieldInfo('Organization edit access is required',
testId('settings-name-info')
) : null
)
),
this._options.showDomain ? css.paymentRow(
css.paymentField(
css.paymentLabel('URL'),
this.billingInput(this._domain,
dom.boolAttr('disabled', () => noEditAccess),
testId('settings-domain')
),
noEditAccess ? css.paymentFieldInfo('Organization edit access is required',
testId('settings-domain-info')
) : null,
hasDomain ? css.paymentFieldDanger('Any saved links will need updating if the URL changes') : null,
),
css.paymentField({style: 'flex: 0 1 0;'},
css.inputHintLabel('.getgrist.com')
)
) : null,
css.inputError(
dom.text(this.formError),
testId('settings-form-error')
)
);
}
// Throws if any value is invalid.
public async getSettings(): Promise<IBillingOrgSettings|undefined> {
try {
return {
name: await this._name.get(),
domain: await this._domain.get()
};
} catch (e) {
this.formError.set(e.message);
throw e;
}
}
// Throws if the entered domain contains any invalid characters or is already taken.
private async _verifyDomain(domain: string): Promise<void> {
// OK to retain current domain.
if (domain === this._options.autofill?.domain) { return; }
checkSubdomainValidity(domain);
const isAvailable = await this._billingModel.isDomainAvailable(domain);
if (!isAvailable) { throw new Error('Domain is already taken.'); }
}
}
/**
* Creates the billing discount form.
*/
class BillingDiscountForm extends BillingSubForm {
private _isExpanded = Observable.create(this, false);
private readonly _discountCode: IValidated<string> = createValidated(this, () => undefined);
constructor(
private readonly _billingModel: BillingModel,
private readonly _options: { autofill?: Partial<IBillingCoupon>; }
) {
super();
if (this._options.autofill) {
const { promotion_code } = this._options.autofill;
this._discountCode.value.set(promotion_code ?? '');
this._isExpanded.set(Boolean(promotion_code));
}
}
public buildDom() {
return dom.domComputed(this._isExpanded, isExpanded => [
!isExpanded ?
css.paymentBlock(
css.paymentRow(
css.billingText('Have a discount code?', testId('discount-code-question')),
css.billingTextBtn(
css.billingIcon('Settings'),
'Apply',
dom.on('click', () => this._isExpanded.set(true)),
testId('apply-discount-code')
)
)
) :
css.paymentBlock(
css.paymentRow(
css.paymentField(
css.paymentLabel('Discount Code'),
this.billingInput(this._discountCode, testId('discount-code')),
)
),
css.inputError(
dom.text(this.formError),
testId('discount-form-error')
)
)
]);
}
public async getCoupon() {
const discountCode = await this._discountCode.get();
if (discountCode.trim() === '') { return undefined; }
try {
return await this._billingModel.fetchSignupCoupon(discountCode);
} catch (e) {
this.formError.set('Invalid or expired discount code.');
throw e;
}
}
}
function checkFunc(func: (val: string) => boolean, message: string) {
return (val: string) => {
if (!func(val)) { throw new Error(message); }
};
}
function checkRequired(propertyName: string) {
return checkFunc(Boolean, `${propertyName} is required.`);
}
// Creates a validated object, which includes an observable and a function to check
// if the current observable value is valid.
function createValidated(
owner: IDisposableOwnerT<any>,
checkValidity: (value: string) => void|Promise<void>,
): IValidated<string> {
const value = Observable.create(owner, '');
const isInvalid = Observable.create<boolean>(owner, false);
owner.autoDispose(value.addListener(() => { isInvalid.set(false); }));
return {
value,
isInvalid,
checkValidity,
get: async () => {
const _value = value.get();
try {
await checkValidity(_value);
} catch (e) {
isInvalid.set(true);
throw e;
}
isInvalid.set(false);
return _value;
}
};
}
function getCountries(): Array<IOption<string>> {
// Require just the one file because it has all the data we need and is substantially smaller
// than requiring the whole module.
const countryNames = require("i18n-iso-countries/langs/en.json").countries;
const codes = Object.keys(countryNames);
const entries = codes.map(code => {
// The module provides names that are either a string or an array of names. If an array, pick
// the first one.
const names = countryNames[code];
return {value: code, label: Array.isArray(names) ? names[0] : names};
});
return sortBy(entries, 'label');
}
const cssSelect = styled(select, `
height: 42px;
padding-left: 13px;
align-items: center;
`);