Protocols (#20)

* Create Protocol class

* Create histogram helpers

* Create HistogramProtocol class

* Export protocol mapping

* Support more protocols

helpers.js

@@ -5,6 +5,8 @@ const { appEmitter } = require('./emitters.js')
 const { status } = require('./config/constants')
 const totalAttributes = require('./smpc-global/attributes.json')
 const algorithms = require('./smpc-global/algorithms.json')
+const mapping = require('../smpc-global/mapping.json')
+const meshTerms = require('../smpc-global/meshTerms.json')
 
 const pack = (msg) => {
   return JSON.stringify(msg)
@@ -41,11 +43,90 @@ const constructJob = request => {
   return { ...request, timestamps: { accepted: Date.now() }, status: status.PENDING }
 }
 
+const getNumericalAttribute = (attributes) => {
+  return attributes.find(a => attributes.find(b => b.name === a.name && b.type === 'numerical'))
+}
+
+const getCatecoricalAttribute = (attributes) => {
+  return attributes.find(a => attributes.find(b => b.name === a.name && b.type === 'categorical'))
+}
+
+const getNumericCell = (attributes) => {
+  return getCell(getNumericalAttribute(attributes))
+}
+
+const getCell = (attr) => {
+  const defaultCells = Math.floor(this.state.dataInfo.dataSize / 10)
+  const cells = attr.cells || defaultCells
+  return Math.min(cells, defaultCells)
+}
+
+const getHistogramMinMax = (data) => {
+  const m = data.replace(/\s/g, '').split(',')
+  return { min: Number(m[0]), max: Number(m[1]) }
+}
+
+const fillHistogramArray = (x, y = 0, value = 0) => {
+  if (y === 0) {
+    return Array(x).fill(value)
+  }
+
+  return Array.from(Array(x), _ => Array(y).fill(value))
+}
+
+const constructHistogram2DArray = (data, cellsX, cellsY) => {
+  let arr = fillHistogramArray(cellsX, cellsY)
+
+  for (let i = 0; i < data.length; i++) {
+    let b = data[i].replace(/\s/g, '').split(',')
+    arr[Number(b[0])][Number(b[1])] = b[2]
+  }
+
+  return arr
+}
+
+const histogram2DArrayFromFlattenArray = (data, cellsX, cellsY) => {
+  const y = Math.ceil(cellsY / cellsX)
+  return _.chunk(data, y).map(arr => arr.map(i => i.replace(/\s/g, '').split(',')[1]))
+}
+
+const getAttributeNames = (mesh) => {
+  // Take the vales of the childer of the attribute
+  // Sort children by mapping number
+  // Get only mesh term
+  // Get mesh's term name
+  return Object
+    .entries(mapping[mesh])
+    .sort((a, b) => a[1] - b[1])
+    .map(t => t[0])
+    .map(m => meshTerms[m].name)
+}
+
+const computeAxisLabels = (min, max, width, cells) => {
+  let start = min
+  let end = max
+  const ticks = []
+  for (const _ of Array(cells - 1).keys()) { // eslint-disable-line no-unused-vars
+    end = start + width
+    ticks.push(`[${start}, ${end})`)
+    start = end
+  }
+  end = start + width
+  ticks.push(`[${start}, ${end}]`)
+  return ticks
+}
+
 module.exports = {
   getHistogramType,
   pack,
   unpack,
   sha256,
   updateJobStatus,
-  constructJob
+  constructJob,
+  getNumericCell,
+  getCell,
+  getAttributeNames,
+  getHistogramMinMax,
+  constructHistogram2DArray,
+  histogram2DArrayFromFlattenArray
 }