import * as React from 'react';
import { useRef, useMemo } from 'react';
import JqxScheduler, { ISchedulerProps, jqx } from 'jqwidgets-scripts/jqwidgets-react-tsx/jqxscheduler';

const App = () => {
    const myScheduler = useRef<JqxScheduler>(null);

    const {
        appointmentDataFields,
        date,
        height,
        resources,
        source,
        views
    } = useMemo(() => {
        const appointments = [];
        appointments.push({
            calendar: "Room 1",
            description: "George brings projector for presentations.",
            end: new Date(2018, 10, 23, 16, 0, 0),
            id: "id1",
            location: "",
            start: new Date(2018, 10, 23, 9, 0, 0),
            subject: "Quarterly Project Review Meeting"
        });
        appointments.push({
            calendar: "Room 2",
            description: "",
            end: new Date(2018, 10, 24, 15, 0, 0),
            id: "id2",
            location: "",
            start: new Date(2018, 10, 24, 10, 0, 0),
            subject: "IT Group Mtg."
        });
        appointments.push({
            calendar: "Room 3",
            description: "",
            end: new Date(2018, 10, 27, 13, 0, 0),
            id: "id3",
            location: "",
            start: new Date(2018, 10, 27, 11, 0, 0),
            subject: "Course Social Media"
        });
        appointments.push({
            calendar: "Room 2",
            description: "",
            end: new Date(2018, 10, 23, 18, 0, 0),
            id: "id4",
            location: "",
            start: new Date(2018, 10, 23, 16, 0, 0),
            subject: "New Projects Planning"
        });
        appointments.push({
            calendar: "Room 1",
            description: "",
            end: new Date(2018, 10, 25, 17, 0, 0),
            id: "id5",
            location: "",
            start: new Date(2018, 10, 25, 15, 0, 0),
            subject: "Interview with James"
        });
        appointments.push({
            calendar: "Room 4",
            description: "",
            end: new Date(2018, 10, 26, 16, 0, 0),
            id: "id6",
            location: "",
            start: new Date(2018, 10, 26, 14, 0, 0),
            subject: "Interview with Nancy"
        });

        const sourceObj: any = {
            dataFields: [
                { name: 'id', type: 'string' },
                { name: 'description', type: 'string' },
                { name: 'location', type: 'string' },
                { name: 'subject', type: 'string' },
                { name: 'calendar', type: 'string' },
                { name: 'start', type: 'date' },
                { name: 'end', type: 'date' }
            ],
            dataType: "array",
            id: 'id',
            localData: appointments
        };

        const dataAdapter: any = new jqx.dataAdapter(sourceObj);

        return {
            appointmentDataFields: {
                description: "description",
                from: "start",
                id: "id",
                location: "location",
                resourceId: "calendar",
                subject: "subject",
                to: "end"
            },
            date: new jqx.date(2018, 11, 23),
            height: 600,
            resources: {
                colorScheme: "scheme05",
                dataField: "calendar",
                source: new jqx.dataAdapter(sourceObj)
            },
            source: dataAdapter,
            views: [
                'dayView',
                'weekView',
                { type: 'monthView', showWeekNumbers: true }
            ]
        };
    }, []);

    return (
        <JqxScheduler
            theme="material-purple"
            ref={myScheduler}
            width="100%"
            height={height}
            date={date}
            source={source}
            showLegend={true}
            view="monthView"
            appointmentDataFields={appointmentDataFields}
            resources={resources}
            views={views}
        />
    );
};

export default App;