siimee/backend/db/data-generator/score.js

const cosineSimilarity = require('compute-cosine-similarity')

const config = require('./config')

const preComputedScores = {
    100: {
        100: 0,
        140: 0,
        180: 0,
        220: 0,
        260: 0,
        400: 0,
    },
    140: {
        100: 0,
        140: 0,
        180: 0,
        220: 0,
        260: 0,
        400: 0,
    },
    180: {
        100: 0,
        140: 0,
        180: 0,
        220: 0,
        260: 0,
        400: 0,
    },
    220: {
        100: 0,
        140: 0,
        180: 0,
        220: 0,
        260: 0,
        400: 0,
    },
    260: {
        100: 0,
        140: 0,
        180: 0,
        220: 0,
        260: 0,
        400: 0,
    },
    400: {
        100: 0,
        140: 0,
        180: 0,
        220: 0,
        260: 0,
        400: 0,
    },
}
const score2d = (a, b) => {
    const aScorePlusBase = [100]
    const bScorePlusBase = [100]
    aScorePlusBase.push(a)
    bScorePlusBase.push(b)
    return Math.round(
        Math.pow(cosineSimilarity(aScorePlusBase, bScorePlusBase), 10) *
            config.magic,
    )
}
config.scoreVals.forEach(val => {
    config.scoreVals.forEach(v => {
        preComputedScores[val][v] = score2d(val, v)
    })
})

module.exports = {
    precomputed: preComputedScores,
}