import { createCountryHandler } from "@saleor/components/AddressEdit/createCountryHandler";
import { Backlink } from "@saleor/components/Backlink";
import CompanyAddressInput from "@saleor/components/CompanyAddressInput";
import Container from "@saleor/components/Container";
import Form from "@saleor/components/Form";
import Grid from "@saleor/components/Grid";
import Hr from "@saleor/components/Hr";
import PageHeader from "@saleor/components/PageHeader";
import PageSectionHeader from "@saleor/components/PageSectionHeader";
import Savebar from "@saleor/components/Savebar";
import { configurationMenuUrl } from "@saleor/configuration";
import { ShopErrorFragment, SiteSettingsQuery } from "@saleor/graphql";
import useAddressValidation from "@saleor/hooks/useAddressValidation";
import { SubmitPromise } from "@saleor/hooks/useForm";
import useNavigator from "@saleor/hooks/useNavigator";
import useStateFromProps from "@saleor/hooks/useStateFromProps";
import { commonMessages, sectionNames } from "@saleor/intl";
import { ConfirmButtonTransitionState, makeStyles } from "@saleor/macaw-ui";
import createSingleAutocompleteSelectHandler from "@saleor/utils/handlers/singleAutocompleteSelectChangeHandler";
import { mapCountriesToChoices } from "@saleor/utils/maps";
import React from "react";
import { useIntl } from "react-intl";

import SiteCheckoutSettingsCard from "../SiteCheckoutSettingsCard";
import { messages } from "./messages";

export interface SiteSettingsPageAddressFormData {
  city: string;
  companyName: string;
  country: string;
  countryArea: string;
  phone: string;
  postalCode: string;
  streetAddress1: string;
  streetAddress2: string;
}

export interface SiteSettingsPageFormData
  extends SiteSettingsPageAddressFormData {
  description: string;
  reserveStockDurationAnonymousUser: number;
  reserveStockDurationAuthenticatedUser: number;
  limitQuantityPerCheckout: number;
}

export interface SiteSettingsPageProps {
  disabled: boolean;
  errors: ShopErrorFragment[];
  shop?: SiteSettingsQuery["shop"];
  saveButtonBarState: ConfirmButtonTransitionState;
  onSubmit: (data: SiteSettingsPageFormData) => SubmitPromise;
}

export function areAddressInputFieldsModified(
  data: SiteSettingsPageAddressFormData,
): boolean {
  return ([
    "city",
    "country",
    "countryArea",
    "phone",
    "postalCode",
    "streetAddress1",
    "streetAddress2",
  ] as Array<keyof SiteSettingsPageAddressFormData>)
    .map(key => data[key])
    .some(field => field !== "");
}

const useStyles = makeStyles(
  theme => ({
    hr: {
      gridColumnEnd: "span 2",
      margin: theme.spacing(1, 0),
    },
  }),
  {
    name: "SiteSettingsPage",
  },
);

const SiteSettingsPage: React.FC<SiteSettingsPageProps> = props => {
  const { disabled, errors, saveButtonBarState, shop, onSubmit } = props;

  const classes = useStyles(props);
  const intl = useIntl();
  const navigate = useNavigator();

  const [displayCountry, setDisplayCountry] = useStateFromProps(
    shop?.companyAddress?.country.country || "",
  );

  const {
    errors: validationErrors,
    submit: handleSubmitWithAddress,
  } = useAddressValidation(onSubmit);

  const initialFormAddress: SiteSettingsPageAddressFormData = {
    city: shop?.companyAddress?.city || "",
    companyName: shop?.companyAddress?.companyName || "",
    country: shop?.companyAddress?.country.code || "",
    countryArea: shop?.companyAddress?.countryArea || "",
    phone: shop?.companyAddress?.phone || "",
    postalCode: shop?.companyAddress?.postalCode || "",
    streetAddress1: shop?.companyAddress?.streetAddress1 || "",
    streetAddress2: shop?.companyAddress?.streetAddress2 || "",
  };
  const initialForm: SiteSettingsPageFormData = {
    ...initialFormAddress,
    description: shop?.description || "",
    reserveStockDurationAnonymousUser:
      shop?.reserveStockDurationAnonymousUser ?? 0,
    reserveStockDurationAuthenticatedUser:
      shop?.reserveStockDurationAuthenticatedUser ?? 0,
    limitQuantityPerCheckout: shop?.limitQuantityPerCheckout ?? 0,
  };

  return (
    <Form
      initial={initialForm}
      onSubmit={data => {
        const submitFunc = areAddressInputFieldsModified(data)
          ? handleSubmitWithAddress
          : onSubmit;
        return submitFunc(data);
      }}
      confirmLeave
      disabled={disabled}
    >
      {({ change, data, set, isSaveDisabled, submit }) => {
        const countryChoices = mapCountriesToChoices(shop?.countries || []);
        const countrySelect = createSingleAutocompleteSelectHandler(
          change,
          setDisplayCountry,
          countryChoices,
        );

        const handleCountrySelect = createCountryHandler(countrySelect, set);

        return (
          <Container>
            <Backlink href={configurationMenuUrl}>
              {intl.formatMessage(sectionNames.configuration)}
            </Backlink>
            <PageHeader
              title={intl.formatMessage(commonMessages.generalInformations)}
              underline={true}
            />
            <Grid variant="inverted">
              <PageSectionHeader
                title={intl.formatMessage(messages.sectionCheckoutTitle)}
                description={intl.formatMessage(
                  messages.sectionCheckoutDescription,
                )}
              />
              <SiteCheckoutSettingsCard
                data={data}
                errors={errors}
                disabled={disabled}
                onChange={change}
              />
              <Hr className={classes.hr} />
              <PageSectionHeader
                title={intl.formatMessage(messages.sectionCompanyTitle)}
                description={intl.formatMessage(
                  messages.sectionCompanyDescription,
                )}
              />
              <CompanyAddressInput
                data={data}
                displayCountry={displayCountry}
                countries={countryChoices}
                errors={[...errors, ...validationErrors]}
                disabled={disabled}
                header={intl.formatMessage({
                  id: "+jCDvp",
                  defaultMessage: "Store Information",
                  description: "section header",
                })}
                onChange={change}
                onCountryChange={handleCountrySelect}
              />
            </Grid>
            <Savebar
              state={saveButtonBarState}
              disabled={!!isSaveDisabled}
              onCancel={() => navigate(configurationMenuUrl)}
              onSubmit={submit}
            />
          </Container>
        );
      }}
    </Form>
  );
};

SiteSettingsPage.displayName = "SiteSettingsPage";
export default SiteSettingsPage;