/*
Copyright 2021 - 2023 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 { logger } from "matrix-js-sdk/src/logger";
import { Room } from "matrix-js-sdk/src/matrix";
import React, { useContext } from "react";

import { KeyBindingAction } from "../../../accessibility/KeyboardShortcuts";
import RoomListActions from "../../../actions/RoomListActions";
import MatrixClientContext from "../../../contexts/MatrixClientContext";
import dis from "../../../dispatcher/dispatcher";
import { useEventEmitterState } from "../../../hooks/useEventEmitter";
import { useUnreadNotifications } from "../../../hooks/useUnreadNotifications";
import { getKeyBindingsManager } from "../../../KeyBindingsManager";
import { _t } from "../../../languageHandler";
import { NotificationLevel } from "../../../stores/notifications/NotificationLevel";
import { DefaultTagID, TagID } from "../../../stores/room-list/models";
import RoomListStore, { LISTS_UPDATE_EVENT } from "../../../stores/room-list/RoomListStore";
import DMRoomMap from "../../../utils/DMRoomMap";
import { clearRoomNotification, setMarkedUnreadState } from "../../../utils/notifications";
import { IProps as IContextMenuProps } from "../../structures/ContextMenu";
import IconizedContextMenu, {
    IconizedContextMenuCheckbox,
    IconizedContextMenuOption,
    IconizedContextMenuOptionList,
} from "../context_menus/IconizedContextMenu";
import { ButtonEvent } from "../elements/AccessibleButton";
import { shouldShowComponent } from "../../../customisations/helpers/UIComponents";
import { UIComponent } from "../../../settings/UIFeature";
import { DeveloperToolsOption } from "./DeveloperToolsOption";
import { useSettingValue } from "../../../hooks/useSettings";

export interface RoomGeneralContextMenuProps extends IContextMenuProps {
    room: Room;
    /**
     * Called when the 'favourite' option is selected, after the menu has processed
     * the mouse or keyboard event.
     * @param event The event that caused the option to be selected.
     */
    onPostFavoriteClick?: (event: ButtonEvent) => void;
    /**
     * Called when the 'low priority' option is selected, after the menu has processed
     * the mouse or keyboard event.
     * @param event The event that caused the option to be selected.
     */
    onPostLowPriorityClick?: (event: ButtonEvent) => void;
    /**
     * Called when the 'invite' option is selected, after the menu has processed
     * the mouse or keyboard event.
     * @param event The event that caused the option to be selected.
     */
    onPostInviteClick?: (event: ButtonEvent) => void;
    /**
     * Called when the 'copy link' option is selected, after the menu has processed
     * the mouse or keyboard event.
     * @param event The event that caused the option to be selected.
     */
    onPostCopyLinkClick?: (event: ButtonEvent) => void;
    /**
     * Called when the 'settings' option is selected, after the menu has processed
     * the mouse or keyboard event.
     * @param event The event that caused the option to be selected.
     */
    onPostSettingsClick?: (event: ButtonEvent) => void;
    /**
     * Called when the 'forget room' option is selected, after the menu has processed
     * the mouse or keyboard event.
     * @param event The event that caused the option to be selected.
     */
    onPostForgetClick?: (event: ButtonEvent) => void;
    /**
     * Called when the 'leave' option is selected, after the menu has processed
     * the mouse or keyboard event.
     * @param event The event that caused the option to be selected.
     */
    onPostLeaveClick?: (event: ButtonEvent) => void;
    /**
     * Called when the 'mark as read' option is selected, after the menu has processed
     * the mouse or keyboard event.
     * @param event The event that caused the option to be selected.
     */
    onPostMarkAsReadClick?: (event: ButtonEvent) => void;
    /**
     * Called when the 'mark as unread' option is selected, after the menu has processed
     * the mouse or keyboard event.
     * @param event The event that caused the option to be selected.
     */
    onPostMarkAsUnreadClick?: (event: ButtonEvent) => void;
}

/**
 * Room context menu accessible via the room list.
 */
export const RoomGeneralContextMenu: React.FC<RoomGeneralContextMenuProps> = ({
    room,
    onFinished,
    onPostFavoriteClick,
    onPostLowPriorityClick,
    onPostInviteClick,
    onPostCopyLinkClick,
    onPostSettingsClick,
    onPostLeaveClick,
    onPostForgetClick,
    onPostMarkAsReadClick,
    onPostMarkAsUnreadClick,
    ...props
}) => {
    const cli = useContext(MatrixClientContext);
    const roomTags = useEventEmitterState(RoomListStore.instance, LISTS_UPDATE_EVENT, () =>
        RoomListStore.instance.getTagsForRoom(room),
    );
    const isDm = DMRoomMap.shared().getUserIdForRoomId(room.roomId);
    const wrapHandler = (
        handler: (ev: ButtonEvent) => void,
        postHandler?: (ev: ButtonEvent) => void,
        persistent = false,
    ): ((ev: ButtonEvent) => void) => {
        return (ev: ButtonEvent) => {
            ev.preventDefault();
            ev.stopPropagation();

            handler(ev);

            const action = getKeyBindingsManager().getAccessibilityAction(ev as React.KeyboardEvent);
            if (!persistent || action === KeyBindingAction.Enter) {
                onFinished();
            }
            postHandler?.(ev);
        };
    };

    const onTagRoom = (ev: ButtonEvent, tagId: TagID): void => {
        if (!cli) return;
        if (tagId === DefaultTagID.Favourite || tagId === DefaultTagID.LowPriority) {
            const inverseTag = tagId === DefaultTagID.Favourite ? DefaultTagID.LowPriority : DefaultTagID.Favourite;
            const isApplied = RoomListStore.instance.getTagsForRoom(room).includes(tagId);
            const removeTag = isApplied ? tagId : inverseTag;
            const addTag = isApplied ? null : tagId;
            dis.dispatch(RoomListActions.tagRoom(cli, room, removeTag, addTag, 0));
        } else {
            logger.warn(`Unexpected tag ${tagId} applied to ${room.roomId}`);
        }
    };

    const isFavorite = roomTags.includes(DefaultTagID.Favourite);
    const favoriteOption: JSX.Element = (
        <IconizedContextMenuCheckbox
            onClick={wrapHandler((ev) => onTagRoom(ev, DefaultTagID.Favourite), onPostFavoriteClick, true)}
            active={isFavorite}
            label={isFavorite ? _t("room|context_menu|unfavourite") : _t("room|context_menu|favourite")}
            iconClassName="mx_RoomGeneralContextMenu_iconStar"
        />
    );

    const isLowPriority = roomTags.includes(DefaultTagID.LowPriority);
    const lowPriorityOption: JSX.Element = (
        <IconizedContextMenuCheckbox
            onClick={wrapHandler((ev) => onTagRoom(ev, DefaultTagID.LowPriority), onPostLowPriorityClick, true)}
            active={isLowPriority}
            label={_t("room|context_menu|low_priority")}
            iconClassName="mx_RoomGeneralContextMenu_iconArrowDown"
        />
    );

    let inviteOption: JSX.Element | null = null;
    if (room.canInvite(cli.getUserId()!) && !isDm && shouldShowComponent(UIComponent.InviteUsers)) {
        inviteOption = (
            <IconizedContextMenuOption
                onClick={wrapHandler(
                    () =>
                        dis.dispatch({
                            action: "view_invite",
                            roomId: room.roomId,
                        }),
                    onPostInviteClick,
                )}
                label={_t("action|invite")}
                iconClassName="mx_RoomGeneralContextMenu_iconInvite"
            />
        );
    }

    let copyLinkOption: JSX.Element | null = null;
    if (!isDm) {
        copyLinkOption = (
            <IconizedContextMenuOption
                onClick={wrapHandler(
                    () =>
                        dis.dispatch({
                            action: "copy_room",
                            room_id: room.roomId,
                        }),
                    onPostCopyLinkClick,
                )}
                label={_t("room|context_menu|copy_link")}
                iconClassName="mx_RoomGeneralContextMenu_iconCopyLink"
            />
        );
    }

    const settingsOption: JSX.Element = (
        <IconizedContextMenuOption
            onClick={wrapHandler(
                () =>
                    dis.dispatch({
                        action: "open_room_settings",
                        room_id: room.roomId,
                    }),
                onPostSettingsClick,
            )}
            label={_t("common|settings")}
            iconClassName="mx_RoomGeneralContextMenu_iconSettings"
        />
    );

    let leaveOption: JSX.Element;
    if (roomTags.includes(DefaultTagID.Archived)) {
        leaveOption = (
            <IconizedContextMenuOption
                iconClassName="mx_RoomGeneralContextMenu_iconSignOut"
                label={_t("room|context_menu|forget")}
                className="mx_IconizedContextMenu_option_red"
                onClick={wrapHandler(
                    () =>
                        dis.dispatch({
                            action: "forget_room",
                            room_id: room.roomId,
                        }),
                    onPostForgetClick,
                )}
            />
        );
    } else {
        leaveOption = (
            <IconizedContextMenuOption
                onClick={wrapHandler(
                    () =>
                        dis.dispatch({
                            action: "leave_room",
                            room_id: room.roomId,
                        }),
                    onPostLeaveClick,
                )}
                label={_t("action|leave")}
                className="mx_IconizedContextMenu_option_red"
                iconClassName="mx_RoomGeneralContextMenu_iconSignOut"
            />
        );
    }

    const { level } = useUnreadNotifications(room);
    const markAsReadOption: JSX.Element | null = (() => {
        if (level > NotificationLevel.None) {
            return (
                <IconizedContextMenuOption
                    onClick={wrapHandler(() => {
                        clearRoomNotification(room, cli);
                        onFinished?.();
                    }, onPostMarkAsReadClick)}
                    label={_t("room|context_menu|mark_read")}
                    iconClassName="mx_RoomGeneralContextMenu_iconMarkAsRead"
                />
            );
        } else if (!roomTags.includes(DefaultTagID.Archived)) {
            return (
                <IconizedContextMenuOption
                    onClick={wrapHandler(() => {
                        setMarkedUnreadState(room, cli, true);
                        onFinished?.();
                    }, onPostMarkAsUnreadClick)}
                    label={_t("room|context_menu|mark_unread")}
                    iconClassName="mx_RoomGeneralContextMenu_iconMarkAsUnread"
                />
            );
        } else {
            return null;
        }
    })();

    const developerModeEnabled = useSettingValue<boolean>("developerMode");
    const developerToolsOption = developerModeEnabled ? (
        <DeveloperToolsOption onFinished={onFinished} roomId={room.roomId} />
    ) : null;

    return (
        <IconizedContextMenu {...props} onFinished={onFinished} className="mx_RoomGeneralContextMenu" compact>
            <IconizedContextMenuOptionList>
                {markAsReadOption}
                {!roomTags.includes(DefaultTagID.Archived) && (
                    <>
                        {favoriteOption}
                        {lowPriorityOption}
                        {inviteOption}
                        {copyLinkOption}
                        {settingsOption}
                    </>
                )}
                {developerToolsOption}
            </IconizedContextMenuOptionList>
            <IconizedContextMenuOptionList red>{leaveOption}</IconizedContextMenuOptionList>
        </IconizedContextMenu>
    );
};