gristlabs_grist-core/app/client/ui/BillingForm.ts

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import {get as getBrowserGlobals} from 'app/client/lib/browserGlobals';
import {reportError} from 'app/client/models/AppModel';
import * as css from 'app/client/ui/BillingPageCss';
import {colors, vars} from 'app/client/ui2018/cssVars';
import {formSelect} from 'app/client/ui2018/menus';
import {IBillingAddress, IBillingCard, IBillingOrgSettings} from 'app/common/BillingAPI';
import {checkSubdomainValidity} from 'app/common/orgNameUtils';
import * as roles from 'app/common/roles';
import {Organization} from 'app/common/UserAPI';
import {Disposable, dom, DomArg, IDisposableOwnerT, makeTestId, Observable} from 'grainjs';
const G = getBrowserGlobals('Stripe', 'window');
const testId = makeTestId('test-bp-');
// TODO: When countries other than the US are supported, the state entry must not be limited
// by a dropdown.
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?: IBillingAddress;
card?: IBillingCard;
token?: string;
settings?: IBillingOrgSettings;
}
// 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>;
}
// 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 _payment: BillingPaymentForm|null;
private readonly _settings: BillingSettingsForm|null;
constructor(
org: Organization|null,
isDomainAvailable: (domain: string) => Promise<boolean>,
options: {payment: boolean, address: boolean, settings: boolean, domain: 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(org, isDomainAvailable, {
showHeader: count > 1,
showDomain: options.domain,
autofill: autofill.settings
}) : 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._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;
return {
settings,
address,
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, 'Name');
constructor(private readonly _options: {
showHeader: boolean;
autofill?: Partial<IBillingCard>;
}) {
super();
const autofill = this._options.autofill;
const stripeAPIKey = (G.window as any).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, 'Address');
private readonly _address2: IValidated<string> = createValidated(this, 'Suite/unit', () => undefined);
private readonly _city: IValidated<string> = createValidated(this, 'City');
private readonly _state: IValidated<string> = createValidated(this, 'State');
private readonly _postal: IValidated<string> = createValidated(this, 'Zip code');
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 || '');
}
}
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;'},
css.paymentLabel('State'),
formSelect(this._state.value, states),
testId('address-state')
)
),
css.paymentRow(
css.paymentField(
css.paymentLabel('Zip Code'),
this.billingInput(this._postal, testId('address-zip'))
)
),
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<IBillingAddress|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: 'US' // TODO: Support more countries.
};
} 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, 'Company name');
// Only verify the domain if it is shown.
private readonly _domain: IValidated<string> = createValidated(this, 'URL',
this._options.showDomain ? d => this._verifyDomain(d) : () => undefined);
constructor(
private readonly _org: Organization|null,
private readonly _isDomainAvailable: (domain: string) => Promise<boolean>,
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));
return css.paymentBlock(
this._options.showHeader ? css.paymentSubHeader('Team Site') : null,
css.paymentRow(
css.paymentField(
css.paymentLabel('Company Name'),
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')
),
// Note that we already do not allow editing the domain after it is initially set
// anyway, this is just here for consistency.
noEditAccess ? css.paymentFieldInfo('Organization edit access is required',
testId('settings-domain-info')
) : 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> {
checkSubdomainValidity(domain);
const isAvailable = await this._isDomainAvailable(domain);
if (!isAvailable) { throw new Error('Domain is already taken.'); }
}
}
// 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>,
propertyName: string,
validationFn?: (value: string) => void
): IValidated<string> {
const checkValidity = validationFn || ((_value: string) => {
if (!_value) { throw new Error(`${propertyName} is required.`); }
});
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;
}
};
}