set nocompatible              " be iMproved, required
filetype off                  " required


call plug#begin()
    Plug 'itchyny/lightline.vim'
    Plug 'vim-scripts/c.vim'
    Plug 'arcticicestudio/nord-vim'
	Plug 'scrooloose/nerdtree'
	Plug 'jistr/vim-nerdtree-tabs'
	Plug 'rhysd/vim-clang-format'
	Plug 'kana/vim-operator-user'
    Plug 'rust-lang/rust.vim'
    Plug 'Shougo/deoplete.nvim'
    Plug 'zchee/deoplete-clang'
    Plug 'Shougo/neoinclude.vim'
    Plug 'roxma/nvim-yarp'
    Plug 'roxma/vim-hug-neovim-rpc'
    "Plug 'tbodt/deoplete-tabnine', { 'do': './install.sh' }
    Plug 'sebastianmarkow/deoplete-rust'
    Plug 'jpalardy/vim-slime'
    Plug 'autozimu/LanguageClient-neovim', {
    \ 'branch': 'next',
    \ 'do': 'bash install.sh',
    \ }
    Plug 'calviken/vim-gdscript3'
call plug#end()            " required

filetype plugin indent on    " required

let g:LanguageClient_serverCommands = {
    \ 'r': ['R', '--slave', '-e', 'languageserver::run()'],
    \ }

let g:deoplete#enable_at_startup = 1
let g:deoplete#sources#clang#libclang_path = "/usr/lib/libclang.so"
let g:deoplete#sources#clang#clang_header = "/usr/lib/clang"
let g:deoplete#sources#rust#racer_binary='/usr/bin/racer'
let g:deoplete#sources#rust#rust_source_path='/usr/src/rust/src'

 
set tags+=./.tags


" Session management

set switchbuf=useopen,usetab


fu! SaveSess()
    execute 'mksession! ' . getcwd() . '/.session.vim'
endfunction

fu! RestoreSess()
if filereadable(getcwd() . '/.session.vim')
    let initial_args = argv()
    execute 'so ' . getcwd() . '/.session.vim'
    for file in initial_args
        if bufloaded(file) != 1
            execute 'tabnew ' . getcwd() . '/' . file 
        else
            execute 'sb ' . file
        endif
    endfor
endif
endfunction

" Save session on quitting Vim
autocmd VimLeave * NERDTreeTabsClose
autocmd VimLeave * call SaveSess()

" Restore session on starting Vim
autocmd VimEnter * nested call RestoreSess()

"----------------------
 
" move between tabs
nnoremap <A-Left>  :tabprevious<CR>
nnoremap <A-Right> :tabnext<CR>


 map <C-n> :NERDTreeMirrorToggle<CR>
 
" prevent mouse vanishing
set nomousehide
 
" toggles menu in graphical mode
function! ToggleGUICruft()
	if &guioptions=='ir'
 		exec('set guioptions=imrLn')
	else
		exec('set guioptions=ir')
	endif
endfunction
 
map <F12> <Esc>:call ToggleGUICruft()<cr>
 
set number
set linebreak
set nobackup
set noswapfile
"set shortmess+=I
set backspace=indent,eol,start
set visualbell t_vb=
set showmode
"set smartcase
 
nnoremap <F1> <nop>
nnoremap Q <nop>
nnoremap K <nop>
 
runtime! ftplugin/man.vim
nnoremap K :Man <cword>
 
set mouse=a
set nu
 
let g:clang_format#code_style="llvm"
 
set clipboard=unnamed 
set backspace=indent,eol,start " allow backspacing over everything in insert mode
 
cmap w!! w !sudo tee > /dev/null %
 
set laststatus=2
let g:nord_uniform_diff_background = 1
let g:nord_cursor_line_number_background = 1
let g:lightline = {
      \ 'colorscheme': 'nord',
      \ }

colorscheme nord

filetype plugin indent on
set smartindent
set tabstop=4
set shiftwidth=4
set expandtab

:command WQ wq
:command Wq wq
:command W w
:command Q q

let g:C_Mapfeader = ','
nnoremap <cr> :noh<CR><CR>:<backspace>

let g:deoplete#enable_smart_case = 1
imap <expr><TAB> pumvisible() ? "\<C-n>" : "\<TAB>"
imap <expr><S-TAB> pumvisible() ? "\<C-p>" : "\<S-TAB>"
imap <expr><CR> pumvisible() ? deoplete#close_popup() : "\<CR>"
set completeopt=menu,noinsert