/*
 This file is part of GNU Taler
 (C) 2022 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 { AbsoluteTime, AmountJson, TalerCoreBankErrorsByMethod, TalerError, WithdrawUriResult } from "@gnu-taler/taler-util";
import { Loading, utils } from "@gnu-taler/web-util/browser";
import { ErrorLoadingWithDebug } from "../../components/ErrorLoadingWithDebug.js";
import { useComponentState } from "./state.js";
import { AbortedView, ConfirmedView, FailedView, InvalidPaytoView, InvalidReserveView, InvalidWithdrawalView, NeedConfirmationView, ReadyView } from "./views.js";

export interface Props {
  currency: string;
  onAuthorizationRequired: () => void,
  onClose: () => void;
}

export type State = State.Loading |
  State.LoadingError |
  State.Ready |
  State.Failed |
  State.Aborted |
  State.Confirmed |
  State.InvalidPayto |
  State.InvalidWithdrawal |
  State.InvalidReserve |
  State.NeedConfirmation;

export namespace State {
  export interface Loading {
    status: "loading";
    error: undefined;
  }

  export interface Failed {
    status: "failed";
    error: TalerCoreBankErrorsByMethod<"createWithdrawal">;
  }

  export interface LoadingError {
    status: "loading-error";
    error: TalerError;
  }

  /**
   * Need to open the wallet
   */
  export interface Ready {
    status: "ready";
    error: undefined;
    uri: WithdrawUriResult,
    onClose: () => Promise<TalerCoreBankErrorsByMethod<"abortWithdrawalById"> | undefined>;
  }

  export interface InvalidPayto {
    status: "invalid-payto",
    error: undefined;
    payto: string | undefined;
    onClose: () => void;
  }
  export interface InvalidWithdrawal {
    status: "invalid-withdrawal",
    error: undefined;
    onClose: () => void;
    uri: string,
  }
  export interface InvalidReserve {
    status: "invalid-reserve",
    error: undefined;
    onClose: () => void;
    reserve: string | undefined;
  }
  export interface NeedConfirmation {
    status: "need-confirmation",
    onAuthorizationRequired: () => void,
    account: string,
    onAbort: undefined | (() => Promise<TalerCoreBankErrorsByMethod<"abortWithdrawalById"> | undefined>);
    onConfirm: undefined | (() => Promise<TalerCoreBankErrorsByMethod<"confirmWithdrawalById"> | undefined>);
    error: undefined;
    id: string,
  }
  export interface Aborted {
    status: "aborted",
    error: undefined;
    onClose: () => void;
  }
  export interface Confirmed {
    status: "confirmed",
    error: undefined;
    onClose: () => void;
  }

}

export interface Transaction {
  negative: boolean;
  counterpart: string;
  when: AbsoluteTime;
  amount: AmountJson | undefined;
  subject: string;
}

const viewMapping: utils.StateViewMap<State> = {
  loading: Loading,
  "failed": FailedView,
  "invalid-payto": InvalidPaytoView,
  "invalid-withdrawal": InvalidWithdrawalView,
  "invalid-reserve": InvalidReserveView,
  "need-confirmation": NeedConfirmationView,
  "aborted": AbortedView,
  "confirmed": ConfirmedView,
  "loading-error": ErrorLoadingWithDebug,
  ready: ReadyView,
};

export const OperationState = utils.compose(
  (p: Props) => useComponentState(p),
  viewMapping,
);