import { makeStyles } from "@material-ui/core/styles";
import Typography from "@material-ui/core/Typography";
import AppHeader from "@saleor/components/AppHeader";
import CardMenu from "@saleor/components/CardMenu";
import { CardSpacer } from "@saleor/components/CardSpacer";
import { ConfirmButtonTransitionState } from "@saleor/components/ConfirmButton";
import { Container } from "@saleor/components/Container";
import { DateTime } from "@saleor/components/Date";
import Form from "@saleor/components/Form";
import Grid from "@saleor/components/Grid";
import Metadata, { MetadataFormData } from "@saleor/components/Metadata";
import PageHeader from "@saleor/components/PageHeader";
import SaveButtonBar from "@saleor/components/SaveButtonBar";
import Skeleton from "@saleor/components/Skeleton";
import { sectionNames } from "@saleor/intl";
import { UserPermissionProps } from "@saleor/types";
import { mapMetadataItemToInput } from "@saleor/utils/maps";
import useMetadataChangeTrigger from "@saleor/utils/metadata/useMetadataChangeTrigger";
import React from "react";
import { useIntl } from "react-intl";

import { maybe, renderCollection } from "../../../misc";
import { OrderStatus } from "../../../types/globalTypes";
import { OrderDetails_order } from "../../types/OrderDetails";
import OrderCustomer from "../OrderCustomer";
import OrderCustomerNote from "../OrderCustomerNote";
import OrderFulfillment from "../OrderFulfillment";
import OrderHistory, { FormData as HistoryFormData } from "../OrderHistory";
import OrderInvoiceList from "../OrderInvoiceList";
import OrderPayment from "../OrderPayment/OrderPayment";
import OrderUnfulfilledItems from "../OrderUnfulfilledItems/OrderUnfulfilledItems";

const useStyles = makeStyles(
  theme => ({
    date: {
      marginBottom: theme.spacing(3)
    },
    header: {
      display: "flex",
      marginBottom: 0
    }
  }),
  {
    name: "OrderDetailsPage"
  }
);

export interface OrderDetailsPageProps extends UserPermissionProps {
  order: OrderDetails_order;
  shippingMethods?: Array<{
    id: string;
    name: string;
  }>;
  countries?: Array<{
    code: string;
    label: string;
  }>;
  disabled: boolean;
  saveButtonBarState: ConfirmButtonTransitionState;
  onBack();
  onBillingAddressEdit();
  onFulfillmentCancel(id: string);
  onFulfillmentTrackingNumberUpdate(id: string);
  onOrderFulfill();
  onProductClick?(id: string);
  onPaymentCapture();
  onPaymentPaid();
  onPaymentRefund();
  onPaymentVoid();
  onShippingAddressEdit();
  onOrderCancel();
  onNoteAdd(data: HistoryFormData);
  onProfileView();
  onInvoiceClick(invoiceId: string);
  onInvoiceGenerate();
  onInvoiceSend(invoiceId: string);
  onSubmit(data: MetadataFormData): Promise<any[]>;
}

const OrderDetailsPage: React.FC<OrderDetailsPageProps> = props => {
  const {
    disabled,
    order,
    saveButtonBarState,
    userPermissions,
    onBack,
    onBillingAddressEdit,
    onFulfillmentCancel,
    onFulfillmentTrackingNumberUpdate,
    onNoteAdd,
    onOrderCancel,
    onOrderFulfill,
    onPaymentCapture,
    onPaymentPaid,
    onPaymentRefund,
    onPaymentVoid,
    onShippingAddressEdit,
    onProfileView,
    onInvoiceClick,
    onInvoiceGenerate,
    onInvoiceSend,
    onSubmit
  } = props;
  const classes = useStyles(props);

  const intl = useIntl();
  const {
    isMetadataModified,
    isPrivateMetadataModified,
    makeChangeHandler: makeMetadataChangeHandler
  } = useMetadataChangeTrigger();

  const canCancel = maybe(() => order.status) !== OrderStatus.CANCELED;
  const canEditAddresses = maybe(() => order.status) !== OrderStatus.CANCELED;
  const canFulfill = maybe(() => order.status) !== OrderStatus.CANCELED;
  const unfulfilled = maybe(() => order.lines, []).filter(
    line => line.quantityFulfilled < line.quantity
  );

  const handleSubmit = (data: MetadataFormData) => {
    const metadata = isMetadataModified ? data.metadata : undefined;
    const privateMetadata = isPrivateMetadataModified
      ? data.privateMetadata
      : undefined;

    return onSubmit({
      metadata,
      privateMetadata
    });
  };

  const initial: MetadataFormData = {
    metadata: order?.metadata.map(mapMetadataItemToInput),
    privateMetadata: order?.privateMetadata.map(mapMetadataItemToInput)
  };

  return (
    <Form initial={initial} onSubmit={handleSubmit}>
      {({ change, data, hasChanged, submit }) => {
        const changeMetadata = makeMetadataChangeHandler(change);

        return (
          <Container>
            <AppHeader onBack={onBack}>
              {intl.formatMessage(sectionNames.orders)}
            </AppHeader>
            <PageHeader
              className={classes.header}
              inline
              title={maybe(() => order.number) ? "#" + order.number : undefined}
            >
              {canCancel && (
                <CardMenu
                  menuItems={[
                    {
                      label: intl.formatMessage({
                        defaultMessage: "Cancel order",
                        description: "button"
                      }),
                      onSelect: onOrderCancel
                    }
                  ]}
                />
              )}
            </PageHeader>
            <div className={classes.date}>
              {order && order.created ? (
                <Typography variant="caption">
                  <DateTime date={order.created} />
                </Typography>
              ) : (
                <Skeleton style={{ width: "10em" }} />
              )}
            </div>
            <Grid>
              <div>
                {unfulfilled.length > 0 && (
                  <OrderUnfulfilledItems
                    canFulfill={canFulfill}
                    lines={unfulfilled}
                    onFulfill={onOrderFulfill}
                  />
                )}
                {renderCollection(
                  maybe(() => order.fulfillments),
                  (fulfillment, fulfillmentIndex) => (
                    <React.Fragment
                      key={maybe(() => fulfillment.id, "loading")}
                    >
                      {!(
                        unfulfilled.length === 0 && fulfillmentIndex === 0
                      ) && <CardSpacer />}
                      <OrderFulfillment
                        fulfillment={fulfillment}
                        orderNumber={maybe(() => order.number)}
                        onOrderFulfillmentCancel={() =>
                          onFulfillmentCancel(fulfillment.id)
                        }
                        onTrackingCodeAdd={() =>
                          onFulfillmentTrackingNumberUpdate(fulfillment.id)
                        }
                      />
                    </React.Fragment>
                  )
                )}
                <CardSpacer />
                <OrderPayment
                  order={order}
                  onCapture={onPaymentCapture}
                  onMarkAsPaid={onPaymentPaid}
                  onRefund={onPaymentRefund}
                  onVoid={onPaymentVoid}
                />
                <CardSpacer />
                <Metadata data={data} onChange={changeMetadata} />
                <OrderHistory
                  history={maybe(() => order.events)}
                  onNoteAdd={onNoteAdd}
                />
              </div>
              <div>
                <OrderCustomer
                  canEditAddresses={canEditAddresses}
                  canEditCustomer={false}
                  order={order}
                  userPermissions={userPermissions}
                  onBillingAddressEdit={onBillingAddressEdit}
                  onShippingAddressEdit={onShippingAddressEdit}
                  onProfileView={onProfileView}
                />
                <CardSpacer />
                <OrderInvoiceList
                  invoices={order?.invoices}
                  onInvoiceClick={onInvoiceClick}
                  onInvoiceGenerate={onInvoiceGenerate}
                  onInvoiceSend={onInvoiceSend}
                />
                <CardSpacer />
                <OrderCustomerNote note={maybe(() => order.customerNote)} />
              </div>
            </Grid>
            <SaveButtonBar
              onCancel={onBack}
              onSave={submit}
              state={saveButtonBarState}
              disabled={disabled || !hasChanged}
            />
          </Container>
        );
      }}
    </Form>
  );
};
OrderDetailsPage.displayName = "OrderDetailsPage";
export default OrderDetailsPage;