-- Line numbers
vim.opt.number = true
vim.opt.relativenumber = true

-- Indentation
vim.opt.expandtab = true
vim.opt.autoindent = true
vim.opt.smarttab = true
vim.opt.shiftwidth = 4
vim.opt.tabstop = 4
vim.opt.softtabstop = 4

-- Enable syntax highlighting
vim.opt.termguicolors = true
vim.opt.syntax = on

-- Enable undo after closing vim
vim.opt.undofile = true

-- Make vim work with russian layout
local function escape(str)
  local escape_chars = [[;,."|\]]
  return vim.fn.escape(str, escape_chars)
end

local en = [[`qwertyuiop[]asdfghjkl;'zxcvbnm]] local ru = [[ёйцукенгшщзхъфывапролджэячсмить]]
local en_shift = [[~QWERTYUIOP{}ASDFGHJKL:"ZXCVBNM<>]]
local ru_shift = [[ËЙЦУКЕНГШЩЗХЪФЫВАПРОЛДЖЭЯЧСМИТЬБЮ]]

vim.opt.langmap = vim.fn.join({
    escape(ru_shift) .. ';' .. escape(en_shift),
    escape(ru) .. ';' .. escape(en),
}, ',')