/*
Copyright 2016 OpenMarket 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 React from 'react';

import sdk from '../../../index';
import { _t } from '../../../languageHandler';
import MatrixClientPeg from '../../../MatrixClientPeg';
import Modal from '../../../Modal';
import DateUtils from '../../../DateUtils';

const AUTH_CACHE_AGE = 5 * 60 * 1000; // 5 minutes

export default class DevicesPanelEntry extends React.Component {
    constructor(props, context) {
        super(props, context);

        this.state = {
            deleting: false,
            deleteError: undefined,
        };

        this._unmounted = false;
        this._onDeleteClick = this._onDeleteClick.bind(this);
        this._onDisplayNameChanged = this._onDisplayNameChanged.bind(this);
        this._makeDeleteRequest = this._makeDeleteRequest.bind(this);
    }

    componentWillUnmount() {
        this._unmounted = true;
    }

    _onDisplayNameChanged(value) {
        const device = this.props.device;
        return MatrixClientPeg.get().setDeviceDetails(device.device_id, {
            display_name: value,
        }).catch((e) => {
            console.error("Error setting device display name", e);
            throw new Error(_t("Failed to set display name"));
        });
    }

    _onDeleteClick() {
        this.setState({deleting: true});

        if (this.context.authCache.lastUpdate < Date.now() - AUTH_CACHE_AGE) {
            this.context.authCache.auth = null;
        }

        // try with auth cache (which is null, so no interactive auth, to start off)
        this._makeDeleteRequest(this.context.authCache.auth).catch((error) => {
            if (this._unmounted) { return; }
            if (error.httpStatus !== 401 || !error.data || !error.data.flows) {
                // doesn't look like an interactive-auth failure
                throw error;
            }

            // pop up an interactive auth dialog
            var InteractiveAuthDialog = sdk.getComponent("dialogs.InteractiveAuthDialog");

            Modal.createTrackedDialog('Delete Device Dialog', '', InteractiveAuthDialog, {
                title: _t("Authentication"),
                matrixClient: MatrixClientPeg.get(),
                authData: error.data,
                makeRequest: this._makeDeleteRequest,
            });

            this.setState({
                deleting: false,
            });
        }).catch((e) => {
            console.error("Error deleting device", e);
            if (this._unmounted) { return; }
            this.setState({
                deleting: false,
                deleteError: _t("Failed to delete device"),
            });
        }).done();
    }

    _makeDeleteRequest(auth) {
        this.context.authCache.auth = auth;
        this.context.authCache.lastUpdate = Date.now();

        const device = this.props.device;
        return MatrixClientPeg.get().deleteDevice(device.device_id, auth).then(
            () => {
                this.props.onDeleted();
                if (this._unmounted) { return; }
                this.setState({ deleting: false });
            }
        );
    }

    render() {
        const EditableTextContainer = sdk.getComponent('elements.EditableTextContainer');

        const device = this.props.device;

        if (this.state.deleting) {
            const Spinner = sdk.getComponent("elements.Spinner");

            return (
                <div className="mx_DevicesPanel_device">
                    <Spinner />
                </div>
            );
        }

        let lastSeen = "";
        if (device.last_seen_ts) {
            const lastSeenDate = DateUtils.formatDate(new Date(device.last_seen_ts));
            lastSeen = device.last_seen_ip + " @ " +
                lastSeenDate.toLocaleString();
        }

        let deleteButton;
        if (this.state.deleteError) {
            deleteButton = <div className="error">{this.state.deleteError}</div>;
        } else {
            deleteButton = (
                <div className="mx_textButton"
                  onClick={this._onDeleteClick}>
                    { _t("Delete") }
                </div>
            );
        }

        var myDeviceClass = '';
        if (device.device_id === MatrixClientPeg.get().getDeviceId()) {
            myDeviceClass = " mx_DevicesPanel_myDevice";
        }

        return (
            <div className={ "mx_DevicesPanel_device" + myDeviceClass }>
                <div className="mx_DevicesPanel_deviceId">
                    {device.device_id}
                </div>
                <div className="mx_DevicesPanel_deviceName">
                    <EditableTextContainer initialValue={device.display_name}
                        onSubmit={this._onDisplayNameChanged}
                        placeholder={device.device_id}
                    />
                </div>
                <div className="mx_DevicesPanel_lastSeen">
                    {lastSeen}
                </div>
                <div className="mx_DevicesPanel_deviceButtons">
                    {deleteButton}
                </div>
            </div>
        );
    }
}

DevicesPanelEntry.propTypes = {
    device: React.PropTypes.object.isRequired,
    onDeleted: React.PropTypes.func,
};

DevicesPanelEntry.contextTypes = {
    authCache: React.PropTypes.object,
};

DevicesPanelEntry.defaultProps = {
    onDeleted: function() {},
};