import React, { useContext, useEffect } from "react";
import { useTranslation } from "react-i18next";
import {
  FormGroup,
  TextInput,
  Form,
  Switch,
  TextArea,
  PageSection,
  ActionGroup,
  Button,
  AlertVariant,
} from "@patternfly/react-core";
import { useParams } from "react-router-dom";
import { Controller, useForm } from "react-hook-form";

import { ScrollForm } from "../components/scroll-form/ScrollForm";
import { ClientDescription } from "./ClientDescription";
import { CapabilityConfig } from "./add/CapabilityConfig";
import { RealmContext } from "../components/realm-context/RealmContext";
import { HttpClientContext } from "../http-service/HttpClientContext";
import { ClientRepresentation } from "../realm/models/Realm";
import {
  convertToMultiline,
  MultiLineInput,
  toValue,
} from "../components/multi-line-input/MultiLineInput";
import { useAlerts } from "../components/alert/Alerts";

export const ClientSettings = () => {
  const { t } = useTranslation("clients");
  const httpClient = useContext(HttpClientContext)!;
  const { realm } = useContext(RealmContext);
  const [addAlert, Alerts] = useAlerts();

  const { id } = useParams<{ id: string }>();
  const form = useForm();
  const url = `/admin/realms/${realm}/clients/${id}`;

  useEffect(() => {
    (async () => {
      const fetchedClient = await httpClient.doGet<ClientRepresentation>(url);
      if (fetchedClient.data) {
        Object.entries(fetchedClient.data).map((entry) => {
          if (entry[0] !== "redirectUris") {
            form.setValue(entry[0], entry[1]);
          } else if (entry[1] && entry[1].length > 0) {
            form.setValue(entry[0], convertToMultiline(entry[1]));
          }
        });
      }
    })();
  }, []);

  const save = async () => {
    if (await form.trigger()) {
      const redirectUris = toValue(form.getValues()["redirectUris"]);
      try {
        httpClient.doPut(url, { ...form.getValues(), redirectUris });
        addAlert(t("clientSaveSuccess"), AlertVariant.success);
      } catch (error) {
        addAlert(`${t("clientSaveError")} '${error}'`, AlertVariant.danger);
      }
    }
  };

  return (
    <PageSection>
      <Alerts />
      <ScrollForm
        sections={[
          t("capabilityConfig"),
          t("generalSettings"),
          t("accessSettings"),
          t("loginSettings"),
        ]}
      >
        <CapabilityConfig form={form} />
        <Form isHorizontal>
          <ClientDescription form={form} />
        </Form>
        <Form isHorizontal>
          <FormGroup label={t("rootUrl")} fieldId="kc-root-url">
            <TextInput
              type="text"
              id="kc-root-url"
              name="rootUrl"
              ref={form.register}
            />
          </FormGroup>
          <FormGroup label={t("validRedirectUri")} fieldId="kc-redirect">
            <MultiLineInput form={form} name="redirectUris" />
          </FormGroup>
          <FormGroup label={t("homeURL")} fieldId="kc-home-url">
            <TextInput
              type="text"
              id="kc-home-url"
              name="baseUrl"
              ref={form.register}
            />
          </FormGroup>
        </Form>
        <Form isHorizontal>
          <FormGroup label={t("consentRequired")} fieldId="kc-consent">
            <Controller
              name="consentRequired"
              defaultValue={false}
              control={form.control}
              render={({ onChange, value }) => (
                <Switch
                  id="kc-consent"
                  label={t("common:on")}
                  labelOff={t("common:off")}
                  isChecked={value}
                  onChange={onChange}
                />
              )}
            />
          </FormGroup>
          <FormGroup
            label={t("displayOnClient")}
            fieldId="kc-display-on-client"
          >
            <Controller
              name="alwaysDisplayInConsole"
              defaultValue={false}
              control={form.control}
              render={({ onChange, value }) => (
                <Switch
                  id="kc-display-on-client"
                  label={t("common:on")}
                  labelOff={t("common:off")}
                  isChecked={value}
                  onChange={onChange}
                />
              )}
            />
          </FormGroup>
          <FormGroup
            label={t("consentScreenText")}
            fieldId="kc-consent-screen-text"
          >
            <TextArea
              id="kc-consent-screen-text"
              name="consentText"
              ref={form.register}
            />
          </FormGroup>
          <ActionGroup>
            <Button variant="primary" onClick={() => save()}>
              {t("common:save")}
            </Button>
            <Button variant="link">{t("common:cancel")}</Button>
          </ActionGroup>
        </Form>
      </ScrollForm>
    </PageSection>
  );
};