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export function getItems(data) {
let filteredData = data.filter((metric) => {
return metric.MetricValue !== 'nan';
});
let transform = filteredData.map((metric) => {
let date = new Date(metric.Timestamp);
let time =
date.getHours() +
':' +
String(date.getMinutes()).padStart(2, '0') +
' ' +
formatDate(date);
return {
...metric,
Timestamp: time,
MetricValue: Math.round(metric.MetricValue),
};
});
let group = transform.reduce(function (rv, x) {
(rv[x['MetricProperty']] = rv[x['MetricProperty']] || []).push(x);
return rv;
}, {});
return Object.keys(group).map((metric) => {
return {
name: metric,
currentTemperature: group[metric][group[metric].length - 1].MetricValue,
middleTemperature: findAverage(group[metric]),
minTemperature: findMin(group[metric]),
minDate: findDateOfMin(group[metric]),
maxTemperature: findMax(group[metric]),
maxDate: findDateOfMax(group[metric]),
};
});
}
function padTo2Digits(num) {
return num.toString().padStart(2, '0');
}
function formatDate(date) {
return [
padTo2Digits(date.getDate()),
padTo2Digits(date.getMonth() + 1),
date.getFullYear(),
].join('.');
}
function findAverage(arr) {
const { length } = arr;
return Math.round(
arr.reduce((acc, val) => {
return acc + val.MetricValue / length;
}, 0)
);
}
function findMin(arr) {
return arr.reduce(
(min, p) => (p.MetricValue < min ? p.MetricValue : min),
arr[0].MetricValue
);
}
function findMax(arr) {
return arr.reduce(
(max, p) => (p.MetricValue > max ? p.MetricValue : max),
arr[0].MetricValue
);
}
function findDateOfMin(arr) {
return arr.reduce((res, obj) =>
obj.MetricValue < res.MetricValue ? obj : res
).Timestamp;
}
function findDateOfMax(arr) {
return arr.reduce((res, obj) =>
obj.MetricValue > res.MetricValue ? obj : res
).Timestamp;
}
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