import { ReactElement } from "react";
import { useHistory, useParams } from "react-router-dom";
import { useTranslation } from "react-i18next";
import {
  AlertVariant,
  ButtonVariant,
  DropdownItem,
} from "@patternfly/react-core";

import type { ProviderRouteParams } from "../routes/NewProvider";
import { useConfirmDialog } from "../../components/confirm-dialog/ConfirmDialog";
import { ViewHeader } from "../../components/view-header/ViewHeader";
import { useAdminClient } from "../../context/auth/AdminClient";
import { useAlerts } from "../../components/alert/Alerts";
import { useRealm } from "../../context/realm-context/RealmContext";
import { toUserFederation } from "../routes/UserFederation";
import { Controller, useFormContext } from "react-hook-form";

type HeaderProps = {
  provider: string;
  save: () => void;
  dropdownItems?: ReactElement[];
  noDivider?: boolean;
};

export const Header = ({
  provider,
  save,
  noDivider = false,
  dropdownItems = [],
}: HeaderProps) => {
  const { t } = useTranslation("user-federation");
  const { id } = useParams<ProviderRouteParams>();
  const history = useHistory();

  const { adminClient } = useAdminClient();
  const { addAlert, addError } = useAlerts();
  const { realm } = useRealm();

  const { control, setValue } = useFormContext();

  const [toggleDisableDialog, DisableConfirm] = useConfirmDialog({
    titleKey: "user-federation:userFedDisableConfirmTitle",
    messageKey: "user-federation:userFedDisableConfirm",
    continueButtonLabel: "common:disable",
    onConfirm: () => {
      setValue("config.enabled[0]", "false");
      save();
    },
  });

  const [toggleDeleteDialog, DeleteConfirm] = useConfirmDialog({
    titleKey: "user-federation:userFedDeleteConfirmTitle",
    messageKey: "user-federation:userFedDeleteConfirm",
    continueButtonLabel: "common:delete",
    continueButtonVariant: ButtonVariant.danger,
    onConfirm: async () => {
      try {
        await adminClient.components.del({ id: id! });
        addAlert(t("userFedDeletedSuccess"), AlertVariant.success);
        history.replace(toUserFederation({ realm }));
      } catch (error) {
        addError("user-federation:userFedDeleteError", error);
      }
    },
  });

  return (
    <>
      <DisableConfirm />
      <DeleteConfirm />
      <Controller
        name="config.enabled[0]"
        defaultValue={["true"][0]}
        control={control}
        render={({ onChange, value }) =>
          !id ? (
            <ViewHeader
              titleKey={t("addProvider", {
                provider: provider,
                count: 1,
              })}
            />
          ) : (
            <ViewHeader
              divider={!noDivider}
              titleKey={provider}
              dropdownItems={[
                ...dropdownItems,
                <DropdownItem
                  key="delete"
                  onClick={() => toggleDeleteDialog()}
                  data-testid="delete-cmd"
                >
                  {t("deleteProvider")}
                </DropdownItem>,
              ]}
              isEnabled={value === "true"}
              onToggle={(value) => {
                if (!value) {
                  toggleDisableDialog();
                } else {
                  onChange(value.toString());
                  save();
                }
              }}
            />
          )
        }
      />
    </>
  );
};