set nocompatible
filetype on
filetype plugin on
filetype indent on

set wrap
set showbreak=+++
set showmatch

set number relativenumber
set hidden

set tabstop=2 softtabstop=2
set shiftwidth=2
set expandtab
set smartindent

set noswapfile
set nobackup
set undodir=~/.vim/undodir
set undofile

set hlsearch
set ignorecase
set smartcase

set incsearch

set termguicolors
set scrolloff=8
set cursorline
set cursorcolumn
set splitright

set spell
hi clear SpellBad


" Plugins
call plug#begin()

" List your plugins here
Plug 'tpope/vim-sensible'
Plug 'honza/vim-snippets'
Plug 'morhetz/gruvbox'
Plug 'neoclide/coc.nvim', {'branch': 'release'}
Plug 'neoclide/coc-snippets'
Plug 'sheerun/vim-polyglot'
Plug 'fatih/vim-go'
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'

call plug#end()

" Gruvbox
set background=dark
let g:gruvbox_contrast_dark='hard'

augroup my_colours
  autocmd!
  autocmd ColorScheme gruvbox hi SpellBad cterm=underline ctermfg=grey
augroup END

colorscheme gruvbox
" 
function! CheckBackSpace() abort
  let col = col('. ') - 1
  return !col || getline('. ')[col - 1] =~ '\s'
endfunction

" coc vim config
inoremap <silent><expr> <TAB>
  \ coc#pum#visible() ? coc#pum#next(1):
  \ CheckBackSpace() ? "\<Tab>" :
  \ coc#refresh()
inoremap <silent><expr> <cr> coc#pum#visible() && coc#pum#info()['index'] != -1 ? coc#pum#confirm() :
  \ "\<C-g>u\<CR>\<c-r>=coc#on_enter()\<CR>"

" Airline
let g:airline#extensions#tabline#enabled = 1