#!/bin/bash

# Copyright 2025 by Alexei Bezborodov <AlexeiBv+linux_script@narod.ru> 
# License: Public domain: http://unlicense.org/ 
# Общественное достояние 

[ "${alias_dir}" = "" ] && alias_dir=$(pwd)
source "${alias_dir}/common"

lang_switch_custom()
{
    str="$1"
    result="$str"
    lang1="$2"
    lang2="$3"
    for (( i = 0; i < ${#result}; i++ )); do
        word="${result:$i:1}"
        for (( j = 0; j < ${#lang1}; j++ )); do
            lang1_word="${lang1:$j:1}"
            if [ "$word" = "$lang1_word" ]; then
                lang2_word="${lang2:$j:1}"
                result="${result:0:$i}${lang2_word}${result:$i+1}"
            fi
        done
    done
    echo "${result}"
}
mkalias_with_prefix 'lang_switch'

lang_switch()
{
    str="$1"
    [ "$str" = "" ] && read -p "Введите строчку:" str
    lang1=$(cat <<EOF
\`qwertyuiop[]asdfghjkl;\'zxcvbnm,./~QWERTYUIOP{}ASDFGHJKL:\"ZXCVBNM<>?
EOF
    )
    lang2="ёйцукенгшщзхъфывапролдж\эячсмитьбю.ЁЙЦУКЕНГШЩЗХЪФЫВАПРОЛДЖ\ЭЯЧСМИТЬБЮ,"
    res1=$(lang_switch_custom "${str}" "${lang1}" "${lang2}")
    res2=$(lang_switch_custom "${str}" "${lang2}" "${lang1}")
    [ "$res1" != "$str" ] && echo "$res1"
    [ "$res2" != "$str" ] && echo "$res2"
    #echo "$lang1" "${#lang1}"
    #echo "$lang2" "${#lang2}"
}
mkalias_with_prefix 'lang_switch'