/*
Copyright 2017 Vector Creations Ltd
Copyright 2017 New Vector Ltd

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 PropTypes from 'prop-types';
import React from 'react';
import { MatrixClient } from 'matrix-js-sdk';
import dis from '../../../dispatcher';
import Modal from '../../../Modal';
import sdk from '../../../index';
import { _t } from '../../../languageHandler';
import { GroupMemberType } from '../../../groups';
import GroupStoreCache from '../../../stores/GroupStoreCache';
import AccessibleButton from '../elements/AccessibleButton';
import GeminiScrollbar from 'react-gemini-scrollbar';

module.exports = React.createClass({
    displayName: 'GroupMemberInfo',

    contextTypes: {
        matrixClient: PropTypes.instanceOf(MatrixClient),
    },

    propTypes: {
        groupId: PropTypes.string,
        groupMember: GroupMemberType,
        isInvited: PropTypes.bool,
    },

    getInitialState: function() {
        return {
            removingUser: false,
            isUserPrivilegedInGroup: null,
        };
    },

    componentWillMount: function() {
        this._initGroupStore(this.props.groupId);
    },

    componentWillReceiveProps(newProps) {
        if (newProps.groupId !== this.props.groupId) {
            this._unregisterGroupStore();
            this._initGroupStore(newProps.groupId);
        }
    },

    _initGroupStore(groupId) {
        this._groupStore = GroupStoreCache.getGroupStore(
            this.context.matrixClient, this.props.groupId,
        );
        this._groupStore.registerListener(this.onGroupStoreUpdated);
    },

    _unregisterGroupStore() {
        if (this._groupStore) {
            this._groupStore.unregisterListener(this.onGroupStoreUpdated);
        }
    },

    onGroupStoreUpdated: function() {
        this.setState({
            isUserInvited: this._groupStore.getGroupInvitedMembers().some(
                (m) => m.userId === this.props.groupMember.userId,
            ),
            isUserPrivilegedInGroup: this._groupStore.isUserPrivileged(),
        });
    },

    _onKick: function() {
        const ConfirmUserActionDialog = sdk.getComponent("dialogs.ConfirmUserActionDialog");
        Modal.createDialog(ConfirmUserActionDialog, {
            groupMember: this.props.groupMember,
            action: this.state.isUserInvited ? _t('Disinvite') : _t('Remove from community'),
            title: this.state.isUserInvited ? _t('Disinvite this user from community?') : _t('Remove this user from community?'),
            danger: true,
            onFinished: (proceed) => {
                if (!proceed) return;

                this.setState({removingUser: true});
                this.context.matrixClient.removeUserFromGroup(
                    this.props.groupId, this.props.groupMember.userId,
                ).then(() => {
                    // return to the user list
                    dis.dispatch({
                        action: "view_user",
                        member: null,
                    });
                }).catch((e) => {
                    const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
                    Modal.createTrackedDialog('Failed to remove user from group', '', ErrorDialog, {
                        title: _t('Error'),
                        description: this.state.isUserInvited ?
                            _t('Failed to withdraw invitation') :
                            _t('Failed to remove user from community'),
                    });
                }).finally(() => {
                    this.setState({removingUser: false});
                });
            },
        });
    },

    _onCancel: function(e) {
        // Go back to the user list
        dis.dispatch({
            action: "view_user",
            member: null,
        });
    },

    onRoomTileClick(roomId) {
        dis.dispatch({
            action: 'view_room',
            room_id: roomId,
        });
    },

    render: function() {
        if (this.state.removingUser) {
            const Spinner = sdk.getComponent("elements.Spinner");
            return <Spinner />;
        }

        let adminTools;
        if (this.state.isUserPrivilegedInGroup) {
            const kickButton = (
                <AccessibleButton className="mx_MemberInfo_field"
                        onClick={this._onKick}>
                    { this.state.isUserInvited ? _t('Disinvite') : _t('Remove from community') }
                </AccessibleButton>
            );

            // No make/revoke admin API yet
            /*const opLabel = this.state.isTargetMod ? _t("Revoke Moderator") : _t("Make Moderator");
            giveModButton = <AccessibleButton className="mx_MemberInfo_field" onClick={this.onModToggle}>
                {giveOpLabel}
            </AccessibleButton>;*/

            if (kickButton) {
                adminTools =
                    <div className="mx_MemberInfo_adminTools">
                        <h3>{ _t("Admin Tools") }</h3>
                        <div className="mx_MemberInfo_buttons">
                            { kickButton }
                        </div>
                    </div>;
            }
        }

        const avatarUrl = this.context.matrixClient.mxcUrlToHttp(
            this.props.groupMember.avatarUrl,
            36, 36, 'crop',
        );

        const BaseAvatar = sdk.getComponent('avatars.BaseAvatar');
        const avatar = (
            <BaseAvatar name={this.props.groupMember.userId} width={36} height={36}
                url={avatarUrl}
            />
        );

        const groupMemberName = (
            this.props.groupMember.displayname || this.props.groupMember.userId
        );

        const EmojiText = sdk.getComponent('elements.EmojiText');
        return (
            <div className="mx_MemberInfo">
                <GeminiScrollbar autoshow={true}>
                    <AccessibleButton className="mx_MemberInfo_cancel"onClick={this._onCancel}>
                        <img src="img/cancel.svg" width="18" height="18" className="mx_filterFlipColor" />
                    </AccessibleButton>
                    <div className="mx_MemberInfo_avatar">
                        { avatar }
                    </div>

                    <EmojiText element="h2">{ groupMemberName }</EmojiText>

                    <div className="mx_MemberInfo_profile">
                        <div className="mx_MemberInfo_profileField">
                            { this.props.groupMember.userId }
                        </div>
                    </div>

                    { adminTools }
                </GeminiScrollbar>
            </div>
        );
    },
});