//
//  BinaryInteger+Encode83.swift
//  Blurhash
//
//  Created by Marc Rousavy on 10.07.20.
//  Copyright © 2020 Facebook. All rights reserved.
//

import Foundation

extension BinaryInteger {
    func encode83(length: Int) -> String {
        var result = ""
        for i in 1 ... length {
            let digit = (Int(self) / pow(83, length - i)) % 83
            result += encodeCharacters[Int(digit)]
        }
        return result
    }
}

private func pow(_ base: Int, _ exponent: Int) -> Int {
    return (0 ..< exponent).reduce(1) { value, _ in value * base }
}