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initial backend, first score calc draft

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Timo Volkmann 2020-06-10 08:07:15 +02:00 committed by Timo Volkmann
parent a345e17d5e
commit b23a7f6858
7 changed files with 478 additions and 0 deletions
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2
.gitignore vendored
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@ -21,3 +21,5 @@
# System Files
.DS_Store
Thumbs.db
node_modules

0
backend/.gitkeep
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41
backend/app.js Normal file
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@ -0,0 +1,41 @@
var express = require('express')
var sampledata = require('./sampledata')
const app = express()
const port = 3000
const sampleRegions = [
{
id: 29837,
name: "Timbuktu",
country: "Mali"
}
]
const samplePresets = [
{
id: 29837,
parameter: "temperature",
label: "warm",
values: [22, 25]
}
]
app.get('/', (req, res) => res.send('Hello Timo!'))
app.get('/v1/regions', (req, res) => res.json(sampleRegions))
app.get('/v1/presets', (req, res) => res.json(samplePresets))
app.get('/v1/search', (req, res) => {
// check query params
let response = {}
response.meta = {
params: req.params,
query: req.query,
headers: req.headers
}
response.data = sampledata.search_response_model
res.json(response)
})
app.listen(port, () => console.log(`Travopti backend listening at http://localhost:${port}`))

374
backend/package-lock.json generated Normal file
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14
backend/package.json Normal file
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{
"name": "cc-data-backend",
"version": "1.0.0",
"description": "",
"main": "app.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "",
"license": "ISC",
"dependencies": {
"express": "^4.17.1"
}
}

16
backend/sampledata.js Normal file
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var sampledata = {}
sampledata.search_response_model = [
{
region_id: 1,
name: 'Chicago',
country: 'USA',
avg_score: 0.0,
scores: {
temperature: 0.0,
humidity: 0.0,
}
}
]
module.exports = sampledata;

31
backend/score.js Normal file
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@ -0,0 +1,31 @@
/**
*
*/
const multiplier_temperature = 5;
/**
*
* @param {...any} scores expects objects which contains score and their weight
*/
function calculateAvgScore(...scores) {
return avgScore = scores.reduce((total, score) => total += score) / scores.length;
}
function calculateScoreRange(min, max, multiplier, targetVal, sLowVal, sHighVal) {
// return full score when in range
if (targetVal >= sLowVal && targetVal <= sHighVal) return 10;
// choose value with smallest distance
let sVal = Math.abs(targetVal - sLowVal) < Math.abs(targetVal - sHighVal) ? sLowVal : sHighVal;
return calculateScore(min, max, multiplier, targetVal, sVal);
}
function calculateScore(min, max, multiplier, targetVal, searchVal) {
let score = 1 - (Math.abs(searchVal - targetVal) / (max - min) * multiplier);
return score <= 0 ? 0 : score * 10;
}
console.log('Calc')
console.log(calculateScoreRange(-15, 45, 5, 24, 15, 22))