/*
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, { SyntheticEvent, useContext, useState } from 'react';
import { Room } from 'matrix-js-sdk/src/models/room';
import { IEventRelation } from 'matrix-js-sdk/src/models/event';

import MatrixClientContext from '../../../contexts/MatrixClientContext';
import ContextMenu, { AboveLeftOf } from '../../structures/ContextMenu';
import LocationPicker, { ILocationPickerProps } from "./LocationPicker";
import { shareLiveLocation, shareLocation, LocationShareType } from './shareLocation';
import SettingsStore from '../../../settings/SettingsStore';
import ShareDialogButtons from './ShareDialogButtons';
import ShareType from './ShareType';
import { OwnProfileStore } from '../../../stores/OwnProfileStore';
import { EnableLiveShare } from './EnableLiveShare';
import { useFeatureEnabled } from '../../../hooks/useSettings';
import { SettingLevel } from '../../../settings/SettingLevel';

type Props = Omit<ILocationPickerProps, 'onChoose' | 'shareType'> & {
    onFinished: (ev?: SyntheticEvent) => void;
    menuPosition: AboveLeftOf;
    openMenu: () => void;
    roomId: Room["roomId"];
    relation?: IEventRelation;
};

const getEnabledShareTypes = (relation): LocationShareType[] => {
    const enabledShareTypes = [
        LocationShareType.Own,
    ];

    // live locations cannot have a relation
    // hide the option when composer has a relation
    if (!relation) {
        enabledShareTypes.push(LocationShareType.Live);
    }

    enabledShareTypes.push(LocationShareType.Pin);

    return enabledShareTypes;
};

const LocationShareMenu: React.FC<Props> = ({
    menuPosition,
    onFinished,
    sender,
    roomId,
    openMenu,
    relation,
}) => {
    const matrixClient = useContext(MatrixClientContext);
    const enabledShareTypes = getEnabledShareTypes(relation);
    const isLiveShareEnabled = useFeatureEnabled("feature_location_share_live");

    const multipleShareTypesEnabled = enabledShareTypes.length > 1;

    const [shareType, setShareType] = useState<LocationShareType | undefined>(
        multipleShareTypesEnabled ? undefined : LocationShareType.Own,
    );

    const displayName = OwnProfileStore.instance.displayName;

    const onLocationSubmit = shareType === LocationShareType.Live ?
        shareLiveLocation(matrixClient, roomId, displayName, openMenu) :
        shareLocation(matrixClient, roomId, shareType, relation, openMenu);

    const onLiveShareEnableSubmit = () => {
        SettingsStore.setValue("feature_location_share_live", undefined, SettingLevel.DEVICE, true);
    };

    const shouldAdvertiseLiveLabsFlag = shareType === LocationShareType.Live && !isLiveShareEnabled;

    return <ContextMenu
        {...menuPosition}
        onFinished={onFinished}
        managed={false}
    >
        <div className="mx_LocationShareMenu">
            { shouldAdvertiseLiveLabsFlag &&
                <EnableLiveShare
                    onSubmit={onLiveShareEnableSubmit}
                />
            }
            { !shouldAdvertiseLiveLabsFlag && !!shareType &&
                <LocationPicker
                    sender={sender}
                    shareType={shareType}
                    onChoose={onLocationSubmit}
                    onFinished={onFinished}
                />
            }
            { !shareType &&
                <ShareType setShareType={setShareType} enabledShareTypes={enabledShareTypes} />
            }
            <ShareDialogButtons displayBack={!!shareType && multipleShareTypesEnabled} onBack={() => setShareType(undefined)} onCancel={onFinished} />
        </div>
    </ContextMenu>;
};

export default LocationShareMenu;
