import * as React from 'react';
 


import JqxTreeGrid, { ITreeGridProps, jqx } from 'jqwidgets-scripts/jqwidgets-react-tsx/jqxtreegrid';

class App extends React.PureComponent<{}, ITreeGridProps> {
    private myTreeGrid = React.createRef<JqxTreeGrid>();

    constructor(props: {}) {
        super(props);

        const source: any = {
            dataFields: [
                { name: "Id", type: "number" },
                { name: "Name", type: "string" },
                { name: "ParentID", type: "number" },
                { name: "Population", type: "number" }
            ],
            dataType: 'tab',
            hierarchy:
            {
                keyDataField: { name: 'Id' },
                parentDataField: { name: 'ParentID' }
            },
            id: 'Id',
            url: 'locations.tsv'
        };

        const dataAdapter: any = new jqx.dataAdapter(source);
        this.state = {
            columns: [
                { align: 'center', dataField: 'Name', text: 'Location Name', width: '50%' },
                { aggregates: ['min', 'max', 'count'], align: 'center', dataField: 'Population', text: 'Population', width: '50%' }
            ],
            ready: (): void => {
                this.myTreeGrid.current!.expandRow(34);
            },
            source: dataAdapter
        }
    }

    public render() {
        return (
            <JqxTreeGrid theme={'material-purple'} ref={this.myTreeGrid}
                // @ts-ignore
                width={'100%'}
                pageable={true}
                pageSize={25}
                showAggregates={true}
                showSubAggregates={true}
                aggregatesHeight={70}
                sortable={true}
                height={400}
                source={this.state.source}
                columns={this.state.columns}
                ready={this.state.ready}
            />
        );
    }
}

export default App;