Xumm Fee Calc 2.6

output.txt

Sample output:

>> xumm2.6-feecalc-as-is.js
┌──────────┬─────────┬─────────┬─────────┬─────────┬─────────┬─────────┬─────────┬─────────┬─────────┐
│ (index)  │    0    │    1    │    2    │    3    │    4    │    5    │    6    │    7    │    8    │
├──────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┤
│  input   │   10    │   12    │   24    │   100   │   500   │  1200   │  10000  │  20000  │  50000  │
│ -------- │ '-----' │ '-----' │ '-----' │ '-----' │ '-----' │ '-----' │ '-----' │ '-----' │ '-----' │
│   base   │  '12'   │  '12'   │  '24'   │  '100'  │  '500'  │ '1200'  │ '10000' │ '20000' │ '50000' │
│  medium  │  '14'   │  '14'   │  '28'   │  '118'  │  '592'  │ '1419'  │ '11715' │ '23200' │ '56498' │
│   high   │  '21'   │  '21'   │  '43'   │  '179'  │  '892'  │ '2134'  │ '17101' │ '32800' │ '73425' │
└──────────┴─────────┴─────────┴─────────┴─────────┴─────────┴─────────┴─────────┴─────────┴─────────┘

>> xumm2.6-feecalc-nearest-of-5[...]-pow.js
┌──────────┬─────────┬─────────┬─────────┬─────────┬─────────┬─────────┬─────────┬─────────┬─────────┐
│ (index)  │    0    │    1    │    2    │    3    │    4    │    5    │    6    │    7    │    8    │
├──────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┤
│  input   │   10    │   12    │   24    │   100   │   500   │  1200   │  10000  │  20000  │  50000  │
│ -------- │ '-----' │ '-----' │ '-----' │ '-----' │ '-----' │ '-----' │ '-----' │ '-----' │ '-----' │
│   base   │  '12'   │  '12'   │  '24'   │  '100'  │  '500'  │ '1200'  │ '10000' │ '20000' │ '50000' │
│  medium  │  '15'   │  '15'   │  '30'   │  '150'  │  '600'  │ '1500'  │ '15000' │ '25000' │ '60000' │
│   high   │  '25'   │  '25'   │  '45'   │  '200'  │  '900'  │ '2500'  │ '20000' │ '35000' │ '75000' │
└──────────┴─────────┴─────────┴─────────┴─────────┴─────────┴─────────┴─────────┴─────────┴─────────┘

xumm2.6-feecalc-as-is.js

const f = [
  10,
  12,
  24,
  100,
  500,
  1200,
  10000,
  20000,
  50000,
  883520,
]

const feecalc = (basefees, level) => {
  let toppercentage = 0

  switch (level) {
    case 'medium': 
      toppercentage = 4
      break;
    case 'high':
      toppercentage = 8
      break
  }

  return basefees.map(basefee => {
    const fee = Math.max(12, Number(basefee))
    const multiplier = toppercentage > 0
      ? 100 + Math.pow(toppercentage, 2.1 - (0.000005 * fee))
      : 100
    return String(Math.round(fee / 100 * multiplier))
  })
}

console.table({
  input:      f,
  '--------':  f.map(f => '-----'),
  base:       feecalc(f,  'base'),
  medium:     feecalc(f,  'medium'),
  high:       feecalc(f,  'high'),
})

xumm2.6-feecalc-nearest-of-5[...]-pow.js

const f = [
  10,
  12,
  24,
  100,
  500,
  1200,
  10000,
  20000,
  50000,
  883520,
]

const feecalc = (basefees, level) => {
  let toppercentage = 0
  switch (level) {
    case 'medium': 
      toppercentage = 4
      break;
    case 'high':
      toppercentage = 8
      break
  }

  return basefees.map(basefee => {
    const fee = Math.max(12, Number(basefee))
    const nearest = level === 'base'
      ? 1
      : 0.5 * Math.pow(10, String(fee).length - 1)
    const multiplier = toppercentage > 0
      ? 100 + Math.pow(toppercentage, 2.1 - (0.000005 * fee))
      : 100
    return String(
      Math.ceil(
        (fee / 100 * multiplier) / nearest
      ) * nearest
    )
  })
}

console.table({
  input:      f,
  '--------':  f.map(f => '-----'),
  base:       feecalc(f,  'base'),
  medium:     feecalc(f,  'medium'),
  high:       feecalc(f,  'high'),
})