/*
 This file is part of GNU Taler
 (C) 2022-2024 Taler Systems S.A.

 GNU Taler is free software; you can redistribute it and/or modify it under the
 terms of the GNU General Public License as published by the Free Software
 Foundation; either version 3, or (at your option) any later version.

 GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with
 GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
 */
import {
  HttpStatusCode,
  TalerError,
  TalerExchangeApi,
  assertUnreachable,
} from "@gnu-taler/taler-util";
import {
  Attention,
  Loading,
  useTranslationContext,
} from "@gnu-taler/web-util/browser";
import { Fragment, VNode, h } from "preact";
import {
  useCurrentDecisions,
  useCurrentDecisionsUnderInvestigation,
} from "../hooks/decisions.js";

import { privatePages } from "../Routing.js";
import { ErrorLoadingWithDebug } from "../components/ErrorLoadingWithDebug.js";
import { Officer } from "./Officer.js";

type FormType = {
  // state: TalerExchangeApi.AmlState;
};

export function CasesUI({
  records,
  onFirstPage,
  onNext,
  filtered,
}: {
  filtered: boolean;
  onFirstPage?: () => void;
  onNext?: () => void;
  records: TalerExchangeApi.AmlDecision[];
}): VNode {
  const { i18n } = useTranslationContext();

  // const [form, status] = useFormState<FormType>(
  //   [".state"] as Array<UIHandlerId>,
  //   {
  //     // state: filter,
  //   },
  //   (state) => {
  //     const errors = undefinedIfEmpty<FormErrors<FormType>>({
  //       state: state.state === undefined ? i18n.str`required` : undefined,
  //     });
  //     if (errors === undefined) {
  //       const result: FormType = {
  //         state: state.state!,
  //       };
  //       return {
  //         status: "ok",
  //         result,
  //         errors,
  //       };
  //     }
  //     const result: RecursivePartial<FormType> = {
  //       state: state.state,
  //     };
  //     return {
  //       status: "fail",
  //       result,
  //       errors,
  //     };
  //   },
  // );
  // useEffect(() => {
  //   if (status.status === "ok" && filter !== status.result.state) {
  //     onChangeFilter(status.result.state);
  //   }
  // }, [form?.state?.value]);

  return (
    <div>
      <div class="sm:flex sm:items-center">
        {filtered ? (
          <div class="px-2 sm:flex-auto">
            <h1 class="text-base font-semibold leading-6 text-gray-900">
              <i18n.Translate>Cases under investigation</i18n.Translate>
            </h1>
            <p class="mt-2 text-sm text-gray-700 w-80">
              <i18n.Translate>
                A list of all the accounts which are waiting for a deicison to
                be made.
              </i18n.Translate>
            </p>
          </div>
        ) : (
          <div class="px-2 sm:flex-auto">
            <h1 class="text-base font-semibold leading-6 text-gray-900">
              <i18n.Translate>Cases</i18n.Translate>
            </h1>
            <p class="mt-2 text-sm text-gray-700 w-80">
              <i18n.Translate>
                A list of all the known account by the exchange.
              </i18n.Translate>
            </p>
          </div>
        )}
      </div>
      <div class="mt-8 flow-root">
        <div class="overflow-x-auto">
          {!records.length ? (
            <div>empty result </div>
          ) : (
            <div class="inline-block min-w-full py-2 align-middle sm:px-6 lg:px-8">
              <table class="min-w-full divide-y divide-gray-300">
                <thead>
                  <tr>
                    <th
                      scope="col"
                      class="px-3 py-3.5 text-left text-sm font-semibold text-gray-900 w-80"
                    >
                      <i18n.Translate>Account Id</i18n.Translate>
                    </th>
                    <th
                      scope="col"
                      class="px-3 py-3.5 text-left text-sm font-semibold text-gray-900 w-40"
                    >
                      <i18n.Translate>Status</i18n.Translate>
                    </th>
                  </tr>
                </thead>
                <tbody class="divide-y divide-gray-200 bg-white">
                  {records.map((r) => {
                    return (
                      <tr key={r.h_payto} class="hover:bg-gray-100 ">
                        <td class="whitespace-nowrap px-3 py-5 text-sm text-gray-500 ">
                          <div class="text-gray-900">
                            <a
                              href={privatePages.caseDetails.url({
                                cid: r.h_payto,
                              })}
                              class="text-indigo-600 hover:text-indigo-900"
                            >
                              {r.h_payto.substring(0, 16)}...
                            </a>
                          </div>
                        </td>
                        <td class="whitespace-nowrap px-3 py-5 text-sm text-gray-900">
                          {r.to_investigate ? (
                            <span title="require investigation">
                              <ToInvestigateIcon />
                            </span>
                          ) : undefined}
                        </td>
                      </tr>
                    );
                  })}
                </tbody>
              </table>
              <Pagination onFirstPage={onFirstPage} onNext={onNext} />
            </div>
          )}
        </div>
      </div>
    </div>
  );
}

export function Cases() {
  const list = useCurrentDecisions();
  const { i18n } = useTranslationContext();

  if (!list) {
    return <Loading />;
  }
  if (list instanceof TalerError) {
    return <ErrorLoadingWithDebug error={list} />;
  }

  if (list.type === "fail") {
    switch (list.case) {
      case HttpStatusCode.Forbidden: {
        return (
          <Fragment>
            <Attention type="danger" title={i18n.str`Operation denied`}>
              <i18n.Translate>
                This account signature is wrong, contact administrator or create
                a new one.
              </i18n.Translate>
            </Attention>
            <Officer />
          </Fragment>
        );
      }
      case HttpStatusCode.NotFound: {
        return (
          <Fragment>
            <Attention type="danger" title={i18n.str`Operation denied`}>
              <i18n.Translate>This account is not known.</i18n.Translate>
            </Attention>
            <Officer />
          </Fragment>
        );
      }
      case HttpStatusCode.Conflict:
        {
          return (
            <Fragment>
              <Attention type="danger" title={i18n.str`Operation denied`}>
                <i18n.Translate>
                  This account doesn't have access. Request account activation
                  sending your public key.
                </i18n.Translate>
              </Attention>
              <Officer />
            </Fragment>
          );
        }
        return <Officer />;
      default:
        assertUnreachable(list);
    }
  }

  return (
    <CasesUI
      filtered={false}
      records={list.body}
      onFirstPage={list.isFirstPage ? undefined : list.loadFirst}
      onNext={list.isLastPage ? undefined : list.loadNext}
      // filter={stateFilter}
      // onChangeFilter={(d) => {
      //   setStateFilter(d);
      // }}
    />
  );
}
export function CasesUnderInvestigation() {
  const list = useCurrentDecisionsUnderInvestigation();
  const { i18n } = useTranslationContext();

  if (!list) {
    return <Loading />;
  }
  if (list instanceof TalerError) {
    return <ErrorLoadingWithDebug error={list} />;
  }

  if (list.type === "fail") {
    switch (list.case) {
      case HttpStatusCode.Forbidden: {
        return (
          <Fragment>
            <Attention type="danger" title={i18n.str`Operation denied`}>
              <i18n.Translate>
                This account signature is wrong, contact administrator or create
                a new one.
              </i18n.Translate>
            </Attention>
            <Officer />
          </Fragment>
        );
      }
      case HttpStatusCode.NotFound: {
        return (
          <Fragment>
            <Attention type="danger" title={i18n.str`Operation denied`}>
              <i18n.Translate>This account is not known.</i18n.Translate>
            </Attention>
            <Officer />
          </Fragment>
        );
      }
      case HttpStatusCode.Conflict:
        {
          return (
            <Fragment>
              <Attention type="danger" title={i18n.str`Operation denied`}>
                <i18n.Translate>
                  This account doesn't have access. Request account activation
                  sending your public key.
                </i18n.Translate>
              </Attention>
              <Officer />
            </Fragment>
          );
        }
        return <Officer />;
      default:
        assertUnreachable(list);
    }
  }

  return (
    <CasesUI
      filtered={true}
      records={list.body}
      onFirstPage={list.isFirstPage ? undefined : list.loadFirst}
      onNext={list.isLastPage ? undefined : list.loadNext}
      // filter={stateFilter}
      // onChangeFilter={(d) => {
      //   setStateFilter(d);
      // }}
    />
  );
}

// function ToInvestigateIcon(): VNode {
//   return <svg title="requires investigation" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" class="size-6 w-6">
//     <path stroke-linecap="round" stroke-linejoin="round" d="M12 9v3.75m-9.303 3.376c-.866 1.5.217 3.374 1.948 3.374h14.71c1.73 0 2.813-1.874 1.948-3.374L13.949 3.378c-.866-1.5-3.032-1.5-3.898 0L2.697 16.126ZM12 15.75h.007v.008H12v-.008Z" />
//   </svg>
// }
export const ToInvestigateIcon = () => (
  <svg
    title="requires investigation"
    xmlns="http://www.w3.org/2000/svg"
    fill="none"
    viewBox="0 0 24 24"
    stroke-width="1.5"
    stroke="currentColor"
    class="size-6 w-6"
  >
    <path
      stroke-linecap="round"
      stroke-linejoin="round"
      d="M12 9v3.75m-9.303 3.376c-.866 1.5.217 3.374 1.948 3.374h14.71c1.73 0 2.813-1.874 1.948-3.374L13.949 3.378c-.866-1.5-3.032-1.5-3.898 0L2.697 16.126ZM12 15.75h.007v.008H12v-.008Z"
    />
  </svg>
);

export const PeopleIcon = () => (
  <svg
    xmlns="http://www.w3.org/2000/svg"
    fill="none"
    viewBox="0 0 24 24"
    stroke-width="1.5"
    stroke="currentColor"
    class="w-6 h-6"
  >
    <path
      stroke-linecap="round"
      stroke-linejoin="round"
      d="M15.75 6a3.75 3.75 0 11-7.5 0 3.75 3.75 0 017.5 0zM4.501 20.118a7.5 7.5 0 0114.998 0A17.933 17.933 0 0112 21.75c-2.676 0-5.216-.584-7.499-1.632z"
    />
  </svg>
);

export const HomeIcon = () => (
  <svg
    xmlns="http://www.w3.org/2000/svg"
    fill="none"
    viewBox="0 0 24 24"
    stroke-width="1.5"
    stroke="currentColor"
    class="w-6 h-6"
  >
    <path
      stroke-linecap="round"
      stroke-linejoin="round"
      d="M2.25 12l8.954-8.955c.44-.439 1.152-.439 1.591 0L21.75 12M4.5 9.75v10.125c0 .621.504 1.125 1.125 1.125H9.75v-4.875c0-.621.504-1.125 1.125-1.125h2.25c.621 0 1.125.504 1.125 1.125V21h4.125c.621 0 1.125-.504 1.125-1.125V9.75M8.25 21h8.25"
    />
  </svg>
);

export const SearchIcon = () => (
  <svg
    xmlns="http://www.w3.org/2000/svg"
    fill="none"
    viewBox="0 0 24 24"
    stroke-width="1.5"
    stroke="currentColor"
    class="w-6 h-6"
  >
    <path
      stroke-linecap="round"
      stroke-linejoin="round"
      d="m21 21-5.197-5.197m0 0A7.5 7.5 0 1 0 5.196 5.196a7.5 7.5 0 0 0 10.607 10.607Z"
    />
  </svg>
);

export function Pagination({
  onFirstPage,
  onNext,
}: {
  onFirstPage?: () => void;
  onNext?: () => void;
}) {
  const { i18n } = useTranslationContext();
  return (
    <nav
      class="flex items-center justify-between border-t border-gray-200 bg-white px-4 py-3 sm:px-6 rounded-lg"
      aria-label="Pagination"
    >
      <div class="flex flex-1 justify-between sm:justify-end">
        <button
          class="relative disabled:bg-gray-100 disabled:text-gray-500 inline-flex items-center rounded-md bg-white px-3 py-2 text-sm font-semibold text-gray-900 ring-1 ring-inset ring-gray-300 hover:bg-gray-50 focus-visible:outline-offset-0"
          disabled={!onFirstPage}
          onClick={onFirstPage}
        >
          <i18n.Translate>First page</i18n.Translate>
        </button>
        <button
          class="relative disabled:bg-gray-100 disabled:text-gray-500 ml-3 inline-flex items-center rounded-md bg-white px-3 py-2 text-sm font-semibold text-gray-900 ring-1 ring-inset ring-gray-300 hover:bg-gray-50 focus-visible:outline-offset-0"
          disabled={!onNext}
          onClick={onNext}
        >
          <i18n.Translate>Next</i18n.Translate>
        </button>
      </div>
    </nav>
  );
}