const range = (start, end) => new Array(end - start).fill(start).map((el, i) => start + i);
  
  const shortMonth = [
    'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'
  ];
  const monthVisitData = shortMonth.map(m => {
    return {
      'month': m,
      'Unique Visit': Math.floor(Math.random() * 1000) + 200,
      'Page View': Math.floor(Math.random() * 1000) + 250,
    };
  });
  
  const campaignData = [
    {
      value: 335,
      name: 'Website'
    },
    {
      value: 310,
      name: 'Email'
    },
    {
      value: 234,
      name: 'Ads'
    },
    {
      value: 135,
      name: 'Video'
    },
    {
      value: 1548,
      name: 'Search'
    }
  ];
  const locationData = [
    {
      value: 50,
      name: 'China'
    },
    {
      value: 35,
      name: 'USA'
    },
    {
      value: 25,
      name: 'EU'
    },
    {
      value: 10,
      name: 'Russia'
    },
    {
      value: 10,
      name: 'Other'
    }
  ];
  
  const StackMainData = [220, 182, 191, 234, 290, 330, 310, 123, 442, 321, 90, 149, 210, 122, 133, 334, 198, 123, 125, 220];
  const StackData = StackMainData.map((item, key) => {
    return {
      'label': key + 'D',
      'max': 500,
      'sales': item,
    };
  });   
  const SinData = range(1, 12).map(i => {
    return {
      'cate': 'Cat' + i,
      'value': ((Math.sin(i / 5) * (i / 5 - 0.1) + i / 6) * 5)
    };
  });
  
  
  export {
    monthVisitData,
    campaignData,
    locationData,
    StackData,
    SinData,
  };