/*
 * Copyright 2024 New Vector Ltd.
 *
 * SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
 * Please see LICENSE files in the repository root for full details.
 */

import { Breadcrumb, Button, VisualList, VisualListItem } from "@vector-im/compound-web";
import CheckIcon from "@vector-im/compound-design-tokens/assets/web/icons/check";
import InfoIcon from "@vector-im/compound-design-tokens/assets/web/icons/info";
import ErrorIcon from "@vector-im/compound-design-tokens/assets/web/icons/error";
import React, { MouseEventHandler } from "react";
import { AuthDict, MatrixClient, UIAResponse } from "matrix-js-sdk/src/matrix";

import { _t } from "../../../../languageHandler";
import { EncryptionCard } from "./EncryptionCard";
import { withSecretStorageKeyCache } from "../../../../SecurityManager";
import Modal from "../../../../Modal";
import InteractiveAuthDialog from "../../dialogs/InteractiveAuthDialog";
import { useMatrixClientContext } from "../../../../contexts/MatrixClientContext";
import { SSOAuthEntry } from "../../auth/InteractiveAuthEntryComponents";

interface ResetIdentityPanelProps {
    /**
     * Called when the identity is reset.
     */
    onFinish: MouseEventHandler<HTMLButtonElement>;
    /**
     * Called when the cancel button is clicked or when we go back in the breadcrumbs.
     */
    onCancelClick: () => void;
}

/**
 * The panel for resetting the identity of the current user.
 */
export function ResetIdentityPanel({ onCancelClick, onFinish }: ResetIdentityPanelProps): JSX.Element {
    const matrixClient = useMatrixClientContext();

    return (
        <>
            <Breadcrumb
                backLabel={_t("action|back")}
                onBackClick={onCancelClick}
                pages={[_t("settings|encryption|title"), _t("settings|encryption|advanced|breadcrumb_page")]}
                onPageClick={onCancelClick}
            />
            <EncryptionCard
                Icon={ErrorIcon}
                destructive={true}
                title={_t("settings|encryption|advanced|breadcrumb_title")}
                className="mx_ResetIdentityPanel"
            >
                <div className="mx_ResetIdentityPanel_content">
                    <VisualList>
                        <VisualListItem Icon={CheckIcon} success={true}>
                            {_t("settings|encryption|advanced|breadcrumb_first_description")}
                        </VisualListItem>
                        <VisualListItem Icon={InfoIcon}>
                            {_t("settings|encryption|advanced|breadcrumb_second_description")}
                        </VisualListItem>
                        <VisualListItem Icon={InfoIcon}>
                            {_t("settings|encryption|advanced|breadcrumb_third_description")}
                        </VisualListItem>
                    </VisualList>
                    <span>{_t("settings|encryption|advanced|breadcrumb_warning")}</span>
                </div>
                <div className="mx_ResetIdentityPanel_footer">
                    <Button
                        destructive={true}
                        onClick={async (evt) => {
                            await resetIdentity(matrixClient);
                            onFinish(evt);
                        }}
                    >
                        {_t("action|continue")}
                    </Button>
                    <Button kind="tertiary" onClick={onCancelClick}>
                        {_t("action|cancel")}
                    </Button>
                </div>
            </EncryptionCard>
        </>
    );
}

/**
 * Resets the identity of the current user.
 */
async function resetIdentity(matrixClient: MatrixClient): Promise<void> {
    const crypto = matrixClient.getCrypto();
    if (!crypto) return;

    await withSecretStorageKeyCache(async () => {
        await crypto.bootstrapCrossSigning({
            authUploadDeviceSigningKeys: async (makeRequest): Promise<void> =>
                uiAuthCallback(matrixClient, makeRequest),
            setupNewCrossSigning: true,
        });

        await crypto.bootstrapSecretStorage({
            setupNewKeyBackup: true,
        });
    });
}

/**
 * Handles the UIA flow for resetting the identity.
 * @param matrixClient
 * @param makeRequest
 */
async function uiAuthCallback(
    matrixClient: MatrixClient,
    makeRequest: (authData: AuthDict) => Promise<UIAResponse<void>>,
): Promise<void> {
    const dialogAesthetics = {
        [SSOAuthEntry.PHASE_PREAUTH]: {
            title: _t("auth|uia|sso_title"),
            body: _t("auth|uia|sso_preauth_body"),
            continueText: _t("auth|sso"),
            continueKind: "primary",
        },
        [SSOAuthEntry.PHASE_POSTAUTH]: {
            title: _t("encryption|confirm_encryption_setup_title"),
            body: _t("encryption|confirm_encryption_setup_body"),
            continueText: _t("action|confirm"),
            continueKind: "primary",
        },
    };

    const { finished } = Modal.createDialog(InteractiveAuthDialog, {
        title: _t("encryption|bootstrap_title"),
        matrixClient,
        makeRequest,
        aestheticsForStagePhases: {
            [SSOAuthEntry.LOGIN_TYPE]: dialogAesthetics,
            [SSOAuthEntry.UNSTABLE_LOGIN_TYPE]: dialogAesthetics,
        },
    });
    const [confirmed] = await finished;
    if (!confirmed) {
        throw new Error("Cross-signing key upload auth canceled");
    }
}