secretChat

function solve(input) {

    let chat = input.shift()
    let token = input.shift()

    while(token !== `Reveal`) {

        let [comand,checkOne,checkTwo] = token.split(`:|:`)

        if(comand === `InsertSpace`) {
            chat = space(chat,checkOne)
        } else if(comand === `Reverse`) {
            chat = reversee(chat,checkOne)

        } else if(comand === `ChangeAll`) {
          chat =  change(chat,checkOne,checkTwo)
        }


         token = input.shift()
    }

    console.log(`You have a new text message: ${chat}`)

    function space(array,index) {
        index = Number(index)

   let firstPart = array.substring(0,index)
    let secondPart = array.substring(index)

    array = firstPart + ` ` + secondPart
    console.log(array)


    return array
    }

    function reversee(array,substring) {

       if(array.includes(substring)) {
        let ind =   array.indexOf(substring)
        let secondPart = array.substring(ind,ind + substring.length).split(``).reverse().join(``)
        let firstPart = array.substring(0,ind)
        let thirthPart = array.substring(ind + substring.length)
        array = firstPart + secondPart + thirthPart
        console.log(array)
       } else {
           console.log(`error`)
       }
        return array
    }

    function change(array,substring,replacement) {

        while(array.includes(substring)) {
            let ind = array.indexOf(substring)
            let part = array.substring(ind,ind + substring.length)
            array = array.replace(part,replacement)
        }

        console.log(array)
       return array
    }


}