vim-vimrc

" enable backspace
set backspace=indent,eol,start

" set default encoding
set encoding=utf8

" disable create backup file on save
set nobackup
set nowritebackup

" disable vi compatibility
set nocompatible

" hide current mode in the command line
set noshowmode

" disable swap file creation
set noswapfile

" disable line wrap
set nowrap

" enable mouse in all modes
set mouse=a

" use shift + arrows to start visual mode
set keymodel=startsel

" highlight current line
set cursorline

" show line numbers
set number
set numberwidth=5

" hide filename on tab bar
set showtabline=0

" always show the status line
set laststatus=2

" configure status line
let g:modes={
            \ 'n'      : 'NORMAL',
            \ 'no'     : 'NORMAL,OP',
            \ 'v'      : 'VISUAL',
            \ 'V'      : 'V-LINE',
            \ "\<C-v>" : 'V-BLOCK',
            \ 's'      : 'SELECT',
            \ 'S'      : 'S-LINE',
            \ '^S'     : 'S-BLOCK',
            \ 'i'      : 'INSERT',
            \ 'R'      : 'REPLACE',
            \ 'Rv'     : 'V-REPLACE',
            \ 'c'      : 'COMMAND',
            \ 'cv'     : 'VIM EX',
            \ 'ce'     : 'EX',
            \ 'r'      : 'PROMPT',
            \ 'rm'     : 'MORE',
            \ 'r?'     : 'CONFIRM',
            \ '!'      : 'SHELL',
            \ 't'      : 'TERMINAL'
            \}

set statusline=
set statusline+=\                    " space
set statusline+=\                    " space
set statusline+=%{g:modes[mode()]}   " mode
set statusline+=\                    " space
set statusline+=\                    " space
set statusline+=\                    " space
set statusline+=\                    " space
set statusline+=\                    " space
set statusline+=%F                   " file name
set statusline+=%=                   " align right
set statusline+=%l                   " current line number
set statusline+=\:                   " separator
set statusline+=%L                   " total line number
set statusline+=\                    " space
set statusline+=\                    " space

" hide line and column number in the command line
set noruler

" hide partial commands in the command line
set noshowcmd

" prevent echoing the file name in the command line
set shortmess+=FW

" show diagnostics and code actions icons over the line number
set signcolumn=number

" allow to keep the buffer unsaved in the background
set hidden

" cursor shape
let &t_SI="\<Esc>[4 q"
let &t_EI="\<Esc>[2 q"

" leader key
let mapleader="\<Space>"

" tabs
set autoindent
set expandtab
set shiftwidth=2
set softtabstop=2
set tabstop=2

" whitespace characters
set listchars=space:·,tab:»\ ,trail:·
set nolist

" customize auto-complete popup
set completeopt=menuone,noinsert,noselect,popup
set pumheight=8
set pumwidth=8
set pummaxwidth=64

" enable reading .vimrc from the current directory
set exrc

" disable bell sounds
set belloff=all

" change splits direction
set splitbelow
set splitright

" change vertical separator
set fillchars+=vert:█

" syntax highlighting
syntax on
filetype plugin indent on

" show opened filename in the console title
set title
set titlestring=vim:\ %t

" theme
colorscheme habamax

" buffer keymaps
nnoremap <silent> <Tab>      :bn<CR>
nnoremap <silent> <S-Tab>    :bp<CR>
nnoremap <silent> <Leader>bd :bd<CR>

" window keymaps
nnoremap <silent> <Leader><Leader> <C-w>w
nnoremap <silent> <Leader>ww <C-w>w
nnoremap <silent> <Leader>wc <C-w>c
nnoremap <silent> <Leader>wh :<C-u>split<CR>
nnoremap <silent> <Leader>wv :<C-u>vsplit<CR>

" use enter to clear last search highlighting
nnoremap <silent> <CR> :noh<CR><CR>

" fzf keymap
nnoremap <silent> <Leader>p  :call fzf#vim#files('', fzf#vim#with_preview({ 'options': [ '--prompt', '> ', '--layout', 'reverse', '--border', '--style', 'full', '--preview-window', 'right,70%', '--border-label', ' ' . expand('%:p:h') . ' ' ] }), 1)<CR>
nnoremap <silent> <Leader>P  :call fzf#vim#files(expand('%:p:h'), fzf#vim#with_preview({ 'options': [ '--prompt', '> ', '--layout', 'reverse', '--border', '--style', 'full', '--preview-window', 'right,70%', '--border-label', ' ' . expand('%:p:h') . ' ' ] }), 1)<CR>
nnoremap <silent> <Leader>gs :call fzf#vim#gitfiles('?', { 'options': [ '--prompt', '> ', '--layout', 'reverse', '--border', '--style', 'full', '--preview-window', 'bottom,75%', '--border-label', ' Changes ' ] }, 1)<CR>

" reset kitty padding
autocmd VimEnter * execute 'silent! !kitten @ set-spacing padding=0'
autocmd VimLeave * execute 'silent! !kitten @ set-spacing padding=5'

" fzf configuration
let g:fzf_vim={}
let g:fzf_vim.command_prefix='Fzf'

" add plugins
call plug#begin('~/.vim/plug-plugins')

" editorconfig support
Plug 'editorconfig/editorconfig-vim'

" language packs
Plug 'sheerun/vim-polyglot'

" fzf integration
Plug 'junegunn/fzf', {'do': { -> fzf#install() }}
Plug 'junegunn/fzf.vim'

call plug#end()

" install missing plugins when opening vim
autocmd VimEnter *
            \  if len(filter(values(g:plugs), '!isdirectory(v:val.dir)'))
            \|   PlugInstall --sync | source $MYVIMRC | q
            \| endif