const randomString = () => Math.random().toString(36).substring(2, 3) + Math.random().toString(36).substring(2, 3);

const range = (len: number) => {
    const arr = [];
    // eslint-disable-next-line no-plusplus
    for (let i = 0; i < len; i++) {
        arr.push(i);
    }
    return arr;
};

const newLead = (index: number) => ({
    index,
    status:  `status${ index }`,
    date:    { time: '12:25', date: '1 Februar, 2020' },
    contact: `${ randomString() }test@email.com`,
    content: `${ randomString() }Some Content here`,
    source:  `${ randomString() }Form Name`
});

export const makeMockData = (...lens: any) => {
    const makeDataLevel = (depth = 0): any => {
        const len = lens[ depth ];
        return range(len).map((d, index) => ({
            ...newLead(index),
            subRows: lens[ depth + 1 ] ? makeDataLevel(depth + 1) : undefined
        }));
    };

    return makeDataLevel();
};