/*

* ISC License (ISC)

* Copyright 2018 aeternity developers

*

* Permission to use, copy, modify, and/or distribute this software for any

* purpose with or without fee is hereby granted, provided that the above

* copyright notice and this permission notice appear in all copies.

*

* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH

* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY

* AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,

* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM

* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR

* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR

* PERFORMANCE OF THIS SOFTWARE.

*/

import * as R from 'ramda'

import { isAddressValid } from './crypto'

/**

* Convert string from snake_case to PascalCase

* @rtype (s: String) => String

* @param {String} s - String to convert

* @return {String} Converted string

*/

export function snakeToPascal (s) {

return s.replace(/_./g, match => R.toUpper(match[1]))

}

/**

* Convert string from snake_case to PascalCase

* @rtype (s: String) => String

* @param {String} s - String to convert

* @return {String} Converted string

*/

export function snakeOrKebabToPascal (s) {

return s.replace(/[_|-]./g, match => R.toUpper(match[1]))

}

/**

* Convert string from PascalCase to snake_case

* @rtype (s: String) => String

* @param {String} s - String to convert

* @return {String} Converted string

*/

export function pascalToSnake (s) {

return s.replace(/[A-Z]/g, match => `_${R.toLower(match)}`)

}

/**

* Check whether a string is valid hex.

* @param {string} str String to validate.

* @return {boolean} True if the string is valid hex, false otherwise.

*/

export function isHex (str) {

return !!(typeof str === 'string' && str.length % 2 === 0 && str.match(/^[0-9a-f]+$/i))

}

/**

* Check whether a string is Aeternity address

* @param {string} str String to validate.

* @return {boolean} True if the string is valid AE address

*/

export function isAeAddress (str) {

if (typeof str !== 'string') return false

return str.split('_')[0].length === 2 && isAddressValid(str)

}

/**

* Check whether a string is valid base-64.

* @param {string} str String to validate.

* @return {boolean} True if the string is valid base-64, false otherwise.

*/

export function isBase64 (str) {

if (str.length % 4 > 0 || str.match(/[^0-9a-z+/=]/i)) return false

const index = str.indexOf('=')

return !!(index === -1 || str.slice(index).match(/={1,2}/))

}