/**
 * External dependencies
 */
import { Fragment, useState } from '@wordpress/element';
import { __ } from '@wordpress/i18n';
import FormStep from '@woocommerce/base-components/checkout/form-step';
import CheckoutForm from '@woocommerce/base-components/checkout/form';
import NoShipping from '@woocommerce/base-components/checkout/no-shipping';
import TextInput from '@woocommerce/base-components/text-input';
import { ShippingCountryInput } from '@woocommerce/base-components/country-input';
import { ShippingStateInput } from '@woocommerce/base-components/state-input';
import ShippingRatesControl from '@woocommerce/base-components/shipping-rates-control';
import InputRow from '@woocommerce/base-components/input-row';
import { CheckboxControl } from '@wordpress/components';
import { getCurrencyFromPriceResponse } from '@woocommerce/base-utils';
import FormattedMonetaryAmount from '@woocommerce/base-components/formatted-monetary-amount';
import CheckoutProvider from '@woocommerce/base-context/checkout-context';
import {
	ExpressCheckoutFormControl,
	PaymentMethods,
} from '@woocommerce/base-components/payment-methods';
import { SHIPPING_ENABLED } from '@woocommerce/block-settings';
import { decodeEntities } from '@wordpress/html-entities';

/**
 * Internal dependencies
 */
import './style.scss';
import '../../../payment-methods-demo';

/**
 * Component displaying an attribute filter.
 */
const Block = ( { shippingMethods = [], isEditor = false } ) => {
	const [ shippingMethod, setShippingMethod ] = useState( {} );
	const [ contactFields, setContactFields ] = useState( {} );
	const [ shouldSavePayment, setShouldSavePayment ] = useState( true );
	const [ shippingFields, setShippingFields ] = useState( {} );
	return (
		<CheckoutProvider>
			<ExpressCheckoutFormControl />
			<CheckoutForm>
				<FormStep
					id="billing-fields"
					className="wc-block-checkout__billing-fields"
					title={ __(
						'Contact information',
						'woo-gutenberg-products-block'
					) }
					description={ __(
						"We'll use this email to send you details and updates about your order.",
						'woo-gutenberg-products-block'
					) }
					stepNumber={ 1 }
					stepHeadingContent={ () => (
						<Fragment>
							{ __(
								'Already have an account? ',
								'woo-gutenberg-products-block'
							) }
							<a href="/wp-login.php">
								{ __(
									'Log in.',
									'woo-gutenberg-products-block'
								) }
							</a>
						</Fragment>
					) }
				>
					<TextInput
						type="email"
						label={ __(
							'Email address',
							'woo-gutenberg-products-block'
						) }
						value={ contactFields.email }
						autoComplete="email"
						onChange={ ( newValue ) =>
							setContactFields( {
								...contactFields,
								email: newValue,
							} )
						}
					/>
					<CheckboxControl
						className="wc-block-checkout__keep-updated"
						label={ __(
							'Keep me up to date on news and exclusive offers',
							'woo-gutenberg-products-block'
						) }
						checked={ contactFields.keepUpdated }
						onChange={ () =>
							setContactFields( {
								...contactFields,
								keepUpdated: ! contactFields.keepUpdated,
							} )
						}
					/>
				</FormStep>
				{ SHIPPING_ENABLED && (
					<FormStep
						id="shipping-fields"
						className="wc-block-checkout__shipping-fields"
						title={ __(
							'Shipping address',
							'woo-gutenberg-products-block'
						) }
						description={ __(
							'Enter the physical address where you want us to deliver your order.',
							'woo-gutenberg-products-block'
						) }
						stepNumber={ 2 }
					>
						<InputRow>
							<TextInput
								label={ __(
									'First name',
									'woo-gutenberg-products-block'
								) }
								value={ shippingFields.firstName }
								autoComplete="given-name"
								onChange={ ( newValue ) =>
									setShippingFields( {
										...shippingFields,
										firstName: newValue,
									} )
								}
							/>
							<TextInput
								label={ __(
									'Surname',
									'woo-gutenberg-products-block'
								) }
								value={ shippingFields.lastName }
								autoComplete="family-name"
								onChange={ ( newValue ) =>
									setShippingFields( {
										...shippingFields,
										lastName: newValue,
									} )
								}
							/>
						</InputRow>
						<TextInput
							label={ __(
								'Street address',
								'woo-gutenberg-products-block'
							) }
							value={ shippingFields.streetAddress }
							autoComplete="address-line1"
							onChange={ ( newValue ) =>
								setShippingFields( {
									...shippingFields,
									streetAddress: newValue,
								} )
							}
						/>
						<TextInput
							label={ __(
								'Apartment, suite, etc.',
								'woo-gutenberg-products-block'
							) }
							value={ shippingFields.apartment }
							autoComplete="address-line2"
							onChange={ ( newValue ) =>
								setShippingFields( {
									...shippingFields,
									apartment: newValue,
								} )
							}
						/>
						<InputRow>
							<ShippingCountryInput
								label={ __(
									'Country / Region',
									'woo-gutenberg-products-block'
								) }
								value={ shippingFields.country }
								autoComplete="country"
								onChange={ ( newValue ) =>
									setShippingFields( {
										...shippingFields,
										country: newValue,
										state: '',
									} )
								}
							/>
							<TextInput
								label={ __(
									'City',
									'woo-gutenberg-products-block'
								) }
								value={ shippingFields.city }
								autoComplete="address-level2"
								onChange={ ( newValue ) =>
									setShippingFields( {
										...shippingFields,
										city: newValue,
									} )
								}
							/>
						</InputRow>
						<InputRow>
							<ShippingStateInput
								country={ shippingFields.country }
								label={ __(
									'State / County',
									'woo-gutenberg-products-block'
								) }
								value={ shippingFields.state }
								autoComplete="address-level1"
								onChange={ ( newValue ) =>
									setShippingFields( {
										...shippingFields,
										state: newValue,
									} )
								}
							/>
							<TextInput
								label={ __(
									'Postal code',
									'woo-gutenberg-products-block'
								) }
								value={ shippingFields.postcode }
								autoComplete="postal-code"
								onChange={ ( newValue ) =>
									setShippingFields( {
										...shippingFields,
										postcode: newValue,
									} )
								}
							/>
						</InputRow>
						<TextInput
							type="tel"
							label={ __(
								'Phone',
								'woo-gutenberg-products-block'
							) }
							value={ shippingFields.phone }
							autoComplete="tel"
							onChange={ ( newValue ) =>
								setShippingFields( {
									...shippingFields,
									phone: newValue,
								} )
							}
						/>
						<CheckboxControl
							className="wc-block-checkout__use-address-for-billing"
							label={ __(
								'Use same address for billing',
								'woo-gutenberg-products-block'
							) }
							checked={ shippingFields.useSameForBilling }
							onChange={ () =>
								setShippingFields( {
									...shippingFields,
									useSameForBilling: ! shippingFields.useSameForBilling,
								} )
							}
						/>
					</FormStep>
				) }
				{ SHIPPING_ENABLED &&
					( shippingMethods.length === 0 && isEditor ? (
						<NoShipping />
					) : (
						<FormStep
							id="shipping-option"
							className="wc-block-checkout__shipping-option"
							title={ __(
								'Shipping options',
								'woo-gutenberg-products-block'
							) }
							description={ __(
								'Select your shipping method below.',
								'woo-gutenberg-products-block'
							) }
							stepNumber={ 3 }
						>
							<ShippingRatesControl
								address={
									shippingFields.country
										? {
												address_1:
													shippingFields.streetAddress,
												address_2:
													shippingFields.apartment,
												city: shippingFields.city,
												state: shippingFields.state,
												postcode:
													shippingFields.postcode,
												country: shippingFields.country,
										  }
										: null
								}
								noResultsMessage={ __(
									'There are no shipping options available. Please ensure that your address has been entered correctly, or contact us if you need any help.',
									'woo-gutenberg-products-block'
								) }
								onChange={ ( newMethods ) =>
									setShippingMethod( {
										...shippingMethod,
										methods: newMethods,
									} )
								}
								renderOption={ ( option ) => ( {
									label: decodeEntities( option.name ),
									value: option.rate_id,
									description: decodeEntities(
										option.description
									),
									secondaryLabel: (
										<FormattedMonetaryAmount
											currency={ getCurrencyFromPriceResponse(
												option
											) }
											value={ option.price }
										/>
									),
									secondaryDescription: decodeEntities(
										option.delivery_time
									),
								} ) }
								selected={ shippingMethod.methods }
							/>
							<CheckboxControl
								className="wc-block-checkout__add-note"
								label="Add order notes?"
								checked={ shippingMethod.orderNote }
								onChange={ () =>
									setShippingMethod( {
										...shippingMethod,
										orderNote: ! shippingMethod.orderNote,
									} )
								}
							/>
						</FormStep>
					) ) }
				<FormStep
					id="payment-method"
					className="wc-block-checkout__payment-method"
					title={ __(
						'Payment method',
						'woo-gutenberg-products-block'
					) }
					description={ __(
						'Select a payment method below.',
						'woo-gutenberg-products-block'
					) }
					stepNumber={ 4 }
				>
					<PaymentMethods />
					{ /*@todo this should be something the payment method controls*/ }
					<CheckboxControl
						className="wc-block-checkout__save-card-info"
						label={ __(
							'Save payment information to my account for future purchases.',
							'woo-gutenberg-products-block'
						) }
						checked={ shouldSavePayment }
						onChange={ () =>
							setShouldSavePayment( ! shouldSavePayment )
						}
					/>
				</FormStep>
			</CheckoutForm>
		</CheckoutProvider>
	);
};

export default Block;