/*
 * Copyright 2007-2017 Charles du Jeu - Abstrium SAS <team (at) pyd.io>
 * This file is part of Pydio.
 *
 * Pydio is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Pydio is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with Pydio.  If not, see <http://www.gnu.org/licenses/>.
 *
 * The latest code can be found at <https://pydio.com>.
 */

'use strict';

exports.__esModule = true;
exports['default'] = React.createClass({
    displayName: 'DataModelBadge',

    propTypes: {
        dataModel: React.PropTypes.instanceOf(PydioDataModel),
        options: React.PropTypes.object,
        onBadgeIncrease: React.PropTypes.func,
        onBadgeChange: React.PropTypes.func
    },

    getInitialState: function getInitialState() {
        return { value: '' };
    },

    componentDidMount: function componentDidMount() {
        var options = this.props.options;
        var dm = this.props.dataModel;
        var newValue = '';
        this._observer = (function () {
            switch (options.property) {
                case "root_children":
                    var l = dm.getRootNode().getChildren().size;
                    newValue = l ? l : 0;
                    break;
                case "root_label":
                    newValue = dm.getRootNode().getLabel();
                    break;
                case "root_children_empty":
                    var cLength = dm.getRootNode().getChildren().size;
                    newValue = !cLength ? options['emptyMessage'] : '';
                    break;
                case "metadata":
                    if (options['metadata_sum']) {
                        newValue = 0;
                        dm.getRootNode().getChildren().forEach(function (c) {
                            if (c.getMetadata().get(options['metadata_sum'])) newValue += parseInt(c.getMetadata().get(options['metadata_sum']));
                        });
                    }
                    break;
                default:
                    break;
            }
            var prevValue = this.state.value;
            if (newValue && newValue !== prevValue) {
                if (Object.isNumber(newValue) && this.props.onBadgeIncrease) {
                    if (prevValue !== '' && newValue > prevValue) this.props.onBadgeIncrease(newValue, prevValue ? prevValue : 0, this.props.dataModel);
                }
            }
            if (this.props.onBadgeChange) {
                this.props.onBadgeChange(newValue, prevValue, this.props.dataModel);
            }
            this.setState({ value: newValue });
        }).bind(this);
        dm.getRootNode().observe("loaded", this._observer);
    },

    componentWillUnmount: function componentWillUnmount() {
        this.props.dataModel.stopObserving("loaded", this._observer);
    },

    render: function render() {
        if (!this.state.value) {
            return null;
        } else {
            return React.createElement(
                'span',
                { className: this.props.options['className'] },
                this.state.value
            );
        }
    }

});
module.exports = exports['default'];