ThreadNet-Web/src/components/structures/auth/forgot-password/EnterEmail.tsx

/*
Copyright 2022 The Matrix.org Foundation C.I.C.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

import React, { ReactNode, useRef } from "react";

import { Icon as EmailIcon } from "../../../../../res/img/element-icons/Email-icon.svg";
import { _t, _td } from "../../../../languageHandler";
import EmailField from "../../../views/auth/EmailField";
import { ErrorMessage } from "../../ErrorMessage";
import Spinner from "../../../views/elements/Spinner";
import Field from "../../../views/elements/Field";
import AccessibleButton, { ButtonEvent } from "../../../views/elements/AccessibleButton";

interface EnterEmailProps {
    email: string;
    errorText: string | ReactNode | null;
    homeserver: string;
    loading: boolean;
    onInputChanged: (stateKey: "email", ev: React.FormEvent<HTMLInputElement>) => void;
    onLoginClick: () => void;
    onSubmitForm: (ev: React.FormEvent) => void;
}

/**
 * This component renders the email input view of the forgot password flow.
 */
export const EnterEmail: React.FC<EnterEmailProps> = ({
    email,
    errorText,
    homeserver,
    loading,
    onInputChanged,
    onLoginClick,
    onSubmitForm,
}) => {
    const submitButtonChild = loading ? <Spinner w={16} h={16} /> : _t("auth|forgot_password_send_email");

    const emailFieldRef = useRef<Field>(null);

    const onSubmit = async (event: React.FormEvent): Promise<void> => {
        if (await emailFieldRef.current?.validate({ allowEmpty: false })) {
            onSubmitForm(event);
            return;
        }

        emailFieldRef.current?.focus();
        emailFieldRef.current?.validate({ allowEmpty: false, focused: true });
    };

    return (
        <>
            <EmailIcon className="mx_AuthBody_icon" />
            <h1>{_t("auth|enter_email_heading")}</h1>
            <p className="mx_AuthBody_text">
                {_t("auth|enter_email_explainer", { homeserver }, { b: (t) => <b>{t}</b> })}
            </p>
            <form onSubmit={onSubmit}>
                <fieldset disabled={loading}>
                    <div className="mx_AuthBody_fieldRow">
                        <EmailField
                            name="reset_email" // define a name so browser's password autofill gets less confused
                            label={_td("common|email_address")}
                            labelRequired={_td("auth|forgot_password_email_required")}
                            labelInvalid={_td("auth|forgot_password_email_invalid")}
                            value={email}
                            autoFocus={true}
                            onChange={(event: React.FormEvent<HTMLInputElement>) => onInputChanged("email", event)}
                            fieldRef={emailFieldRef}
                        />
                    </div>
                    {errorText && <ErrorMessage message={errorText} />}
                    <button type="submit" className="mx_Login_submit">
                        {submitButtonChild}
                    </button>
                    <div className="mx_AuthBody_button-container">
                        <AccessibleButton
                            className="mx_AuthBody_sign-in-instead-button"
                            element="button"
                            kind="link"
                            onClick={(e: ButtonEvent) => {
                                e.preventDefault();
                                onLoginClick();
                            }}
                        >
                            {_t("auth|sign_in_instead")}
                        </AccessibleButton>
                    </div>
                </fieldset>
            </form>
        </>
    );
};