import React, { useState } from "react";
import { useTranslation } from "react-i18next";
import {
  FormGroup,
  TextInput,
  Form,
  Switch,
  TextArea,
  Select,
  SelectVariant,
  SelectOption,
} from "@patternfly/react-core";
import { Controller, useFormContext } from "react-hook-form";

import { ScrollForm } from "../components/scroll-form/ScrollForm";
import { ClientDescription } from "./ClientDescription";
import { CapabilityConfig } from "./add/CapabilityConfig";
import { MultiLineInput } from "../components/multi-line-input/MultiLineInput";
import { FormAccess } from "../components/form-access/FormAccess";
import { HelpItem } from "../components/help-enabler/HelpItem";
import { useServerInfo } from "../context/server-info/ServerInfoProvider";
import { SaveReset } from "./advanced/SaveReset";
import { SamlConfig } from "./add/SamlConfig";
import { SamlSignature } from "./add/SamlSignature";
import type { ClientForm } from "./ClientDetails";

type ClientSettingsProps = {
  save: () => void;
  reset: () => void;
};

const baseSections = [
  "generalSettings",
  "capabilityConfig",
  "accessSettings",
  "loginSettings",
] as const;

const samlSections = [
  "generalSettings",
  "samlCapabilityConfig",
  "signatureAndEncryption",
  "accessSettings",
  "loginSettings",
] as const;

export const ClientSettings = ({ save, reset }: ClientSettingsProps) => {
  const { register, control, watch } = useFormContext<ClientForm>();
  const { t } = useTranslation("clients");

  const [loginThemeOpen, setLoginThemeOpen] = useState(false);
  const loginThemes = useServerInfo().themes!["login"];
  const consentRequired = watch("consentRequired");
  const displayOnConsentScreen: string = watch(
    "attributes.display-on-consent-screen"
  );
  const protocol = watch("protocol");
  const sections = protocol === "saml" ? samlSections : baseSections;

  return (
    <ScrollForm
      className="pf-u-px-lg"
      sections={sections.map((section) => t(section))}
    >
      <Form isHorizontal>
        <ClientDescription />
      </Form>
      {protocol === "saml" ? <SamlConfig /> : <CapabilityConfig />}
      {protocol === "saml" && <SamlSignature />}
      <FormAccess isHorizontal role="manage-clients">
        <FormGroup
          label={t("rootUrl")}
          fieldId="kc-root-url"
          labelIcon={
            <HelpItem
              helpText="clients-help:rootUrl"
              forLabel={t("rootUrl")}
              forID="kc-root-url"
            />
          }
        >
          <TextInput
            type="text"
            id="kc-root-url"
            name="rootUrl"
            ref={register}
          />
        </FormGroup>
        <FormGroup
          label={t("validRedirectUri")}
          fieldId="kc-redirect"
          labelIcon={
            <HelpItem
              helpText="clients-help:validRedirectURIs"
              forLabel={t("validRedirectUri")}
              forID={t(`common:helpLabel`, { label: t("validRedirectUri") })}
            />
          }
        >
          <MultiLineInput
            name="redirectUris"
            aria-label={t("validRedirectUri")}
            addButtonLabel="clients:addRedirectUri"
          />
        </FormGroup>
        <FormGroup
          label={t("homeURL")}
          fieldId="kc-home-url"
          labelIcon={
            <HelpItem
              helpText="clients-help:homeURL"
              forLabel={t("homeURL")}
              forID={t(`common:helpLabel`, { label: t("homeURL") })}
            />
          }
        >
          <TextInput
            type="text"
            id="kc-home-url"
            name="baseUrl"
            ref={register}
          />
        </FormGroup>
        <FormGroup
          label={t("webOrigins")}
          fieldId="kc-web-origins"
          labelIcon={
            <HelpItem
              helpText="clients-help:webOrigins"
              forLabel={t("webOrigins")}
              forID={t(`common:helpLabel`, { label: t("webOrigins") })}
            />
          }
        >
          <MultiLineInput
            name="webOrigins"
            aria-label={t("webOrigins")}
            addButtonLabel="clients:addWebOrigins"
          />
        </FormGroup>
        <FormGroup
          label={t("adminURL")}
          fieldId="kc-admin-url"
          labelIcon={
            <HelpItem
              helpText="clients-help:adminURL"
              forLabel={t("adminURL")}
              forID="kc-admin-url"
            />
          }
        >
          <TextInput
            type="text"
            id="kc-admin-url"
            name="adminUrl"
            ref={register}
          />
        </FormGroup>
      </FormAccess>
      <FormAccess isHorizontal role="manage-clients">
        <FormGroup
          label={t("loginTheme")}
          labelIcon={
            <HelpItem
              helpText="clients-help:loginTheme"
              forLabel={t("loginTheme")}
              forID="loginTheme"
            />
          }
          fieldId="loginTheme"
        >
          <Controller
            name="attributes.login_theme"
            defaultValue=""
            control={control}
            render={({ onChange, value }) => (
              <Select
                toggleId="loginTheme"
                onToggle={() => setLoginThemeOpen(!loginThemeOpen)}
                onSelect={(_, value) => {
                  onChange(value as string);
                  setLoginThemeOpen(false);
                }}
                selections={value || t("common:choose")}
                variant={SelectVariant.single}
                aria-label={t("loginTheme")}
                isOpen={loginThemeOpen}
              >
                <SelectOption key="empty" value="">
                  {t("common:choose")}
                </SelectOption>
                {/* The type for the children of Select are incorrect, so we need a fragment here. */}
                {/* eslint-disable-next-line react/jsx-no-useless-fragment */}
                <>
                  {loginThemes.map((theme) => (
                    <SelectOption
                      selected={theme.name === value}
                      key={theme.name}
                      value={theme.name}
                    />
                  ))}
                </>
              </Select>
            )}
          />
        </FormGroup>
        <FormGroup
          label={t("consentRequired")}
          labelIcon={
            <HelpItem
              helpText="clients-help:consentRequired"
              forLabel={t("consentRequired")}
              forID="kc-consent-switch"
            />
          }
          fieldId="kc-consent"
          hasNoPaddingTop
        >
          <Controller
            name="consentRequired"
            defaultValue={false}
            control={control}
            render={({ onChange, value }) => (
              <Switch
                id="kc-consent-switch"
                label={t("common:on")}
                labelOff={t("common:off")}
                isChecked={value}
                onChange={onChange}
              />
            )}
          />
        </FormGroup>
        <FormGroup
          label={t("displayOnClient")}
          labelIcon={
            <HelpItem
              helpText="clients-help:displayOnClient"
              forLabel={t("displayOnClient")}
              forID="kc-display-on-client-switch"
            />
          }
          fieldId="kc-display-on-client"
          hasNoPaddingTop
        >
          <Controller
            name="attributes.display-on-consent-screen"
            defaultValue={false}
            control={control}
            render={({ onChange, value }) => (
              <Switch
                id="kc-display-on-client-switch"
                label={t("common:on")}
                labelOff={t("common:off")}
                isChecked={value === "true"}
                onChange={(value) => onChange("" + value)}
                isDisabled={!consentRequired}
              />
            )}
          />
        </FormGroup>
        <FormGroup
          label={t("consentScreenText")}
          labelIcon={
            <HelpItem
              helpText="clients-help:consentScreenText"
              forLabel={t("consentScreenText")}
              forID="kc-consent-screen-text"
            />
          }
          fieldId="kc-consent-screen-text"
        >
          <TextArea
            id="kc-consent-screen-text"
            name="attributes.consent-screen-text"
            ref={register}
            isDisabled={!(consentRequired && displayOnConsentScreen === "true")}
          />
        </FormGroup>
        <SaveReset
          className="keycloak__form_actions"
          name="settings"
          save={save}
          reset={reset}
        />
      </FormAccess>
    </ScrollForm>
  );
};