// Just a constant sysbench sorce to compare against
const baselineSysbenchScore = 2000
let sysbenchScore = 2000

try {
  const { stdout } = await Deno.spawn('sysbench', { args: ['cpu', 'run'] })
  const textout = new TextDecoder().decode(stdout)
  sysbenchScore = parseFloat(textout.match(/\s+events per second:\s+(.+)/)![1])
} catch {
  //
}

const output = await Deno.readTextFile('output.txt')
const lines = output.split(/\r?\n/g)

const ret = []

const unitMultiplier = {
  s: 1000 * 1000 * 1000 * (sysbenchScore / baselineSysbenchScore),
  ms: 1000 * 1000 * (sysbenchScore / baselineSysbenchScore),
  µs: 1000 * (sysbenchScore / baselineSysbenchScore),
  ns: 1 * (sysbenchScore / baselineSysbenchScore),
  ps: 0.1 * (sysbenchScore / baselineSysbenchScore),
}

for (const line of lines) {
  const m = line.match(/^(.+)\s+([0-9.]+) (.s)\/iter\s+\((.+) (.s) … (.+) (.s)\)(.+)$/)
  if (m === null) continue

  ret.push({
    name: m[1].trim(),
    value: Math.round(parseFloat(m[2]) * unitMultiplier[m[3] as keyof typeof unitMultiplier]),
    range: `${Math.round(parseFloat(m[4]) * unitMultiplier[m[5] as keyof typeof unitMultiplier] * 100) / 100} … ${
      Math.round(parseFloat(m[6]) * unitMultiplier[m[7] as keyof typeof unitMultiplier] * 100) / 100
    }`,
    unit: 'ns/iter',
  })
}

await Deno.writeTextFile('output.txt', JSON.stringify(ret, undefined, 2))