fetch_active_senseboxes.js

"use strict"

const BASEURL = "https://api.opensensemap.org"
const BOXES_URL = `${BASEURL}/boxes`

const SINGLE_DAY = 86400000
const SINGLE_WEEK = SINGLE_DAY * 7

let now = Date.now()

now = SINGLE_DAY * Math.floor(now / SINGLE_DAY)

now -= SINGLE_DAY

const LAST_DATE = new Date(now)

let handleBoxes = function (json) {
  // prepare boxes in one pass
  let boxes = [];
  for (let box of json) {
    let { name, boxType, _id, loc } = box

    let sensors = [];
    for (let sensor of box.sensors) {
      if (sensor.lastMeasurement !== null) {
        let lastMeasurementDate = new Date(sensor.lastMeasurement.updatedAt)
        if (lastMeasurementDate > LAST_DATE) {
          sensor.lastMeasurement.updatedAt = lastMeasurementDate
          sensors.push(`${sensor.title}: ${sensor.lastMeasurement.value} ${sensor.unit}`)
        }
      }
    }

    if (sensors.length !== 0) {
      boxes.push({ name, boxType, _id, loc, sensors })
      console.log(_id, name, sensors)
    }
  }

  console.log(boxes.length)
  console.log(boxes)

}


let boxesNames = function (json) {
  return json.map(box => box.name)
}

// dl the data..
fetch(BOXES_URL)
  .then(res => res.json())
  .then(boxesNames)
  .then(function (names) {
    window.names = names
  })


// dl the data..
fetch(BOXES_URL)
  .then(res => res.json())
  .then(handleBoxes)