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" general
set nocompatible
set fileformat=unix
set shell=bash
set noswapfile
set nobackup
set nowritebackup
set hidden
set autoindent
set expandtab
set shiftwidth=2
set tabstop=2
set softtabstop=2
set scrolloff=8
set cursorline
set noemoji
set mouse=a
filetype plugin on

" search
set hlsearch
set incsearch
set showmatch
set smartcase
" set ignorecase

" line numbers
set number
set nu
set relativenumber

if exists('&bellof')
  set bellof=all
endif

if has('linebreak')
  set breakindent
  let &showbreak='↳ '
  if exists('&breakindentopt')
    set breakindentopt=shift:2
  endif
endif

if has('folding')
  set foldmethod=indent
  set foldlevel=10
  if has('windows')
    set fillchars=diff:∙
    set fillchars+=fold:·
  endif
endif

""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" layout
if has('windows')
  set splitbelow
endif

if has('vertsplit')
  set splitright
endif

if has('syntax')
  set spellcapcheck=
endif

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" general mappings
let mapleader=" "

noremap <leader>w :w<CR>
noremap <leader>wq :wq<CR>
noremap <leader>q :q<CR>
noremap <leader>q! :q!<CR>
noremap <leader>qa :qa<CR>
noremap <leader>qa! :qa!<CR>
noremap <leader>R :%s/
" unhighlight search matches
noremap <silent> <leader>/ :noh<CR>
noremap <silent> <leader>b :b#<CR>
" yank to clipboard
vnoremap <silent> <C-c> "*y :let @+=@*<CR>

" `jj` to exit insert
inoremap jj <Esc>

" up/down arrows scroll
noremap <silent> <Up> <c-y>
noremap <silent> <Down> <c-e>

" move lines
vnoremap <c-j> :m '>+1<CR>gv=gv
vnoremap <c-k> :m '<-2<CR>gv=gv

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" theme
if has('termguicolors')
  set termguicolors
endif

set colorcolumn=81

" insert chars at tabs and trailing spaces
exec "set listchars=tab:\uBB\uBB,trail:\uB7,nbsp:~"
set list
set listchars=nbsp:⦸
set listchars+=tab:▷┅
set listchars+=extends:»
set listchars+=precedes:«
set listchars+=trail:•