set nocompatible
let VIMHOME = split(&rtp, ",")[0]
let $VIMHOME = VIMHOME

" vim-plug
call plug#begin(VIMHOME."/plugs")
Plug 'lervag/vimtex'
Plug 'posva/vim-vue'
Plug 'neovimhaskell/haskell-vim'
Plug 'nvie/vim-flake8'
Plug 'roxma/nvim-yarp'
Plug 'roxma/vim-hug-neovim-rpc'
Plug 'ConradIrwin/vim-bracketed-paste'
Plug 'Shougo/deoplete.nvim'
" Plug 'Valloric/YouCompleteMe'
Plug 'christoomey/vim-tmux-navigator'
Plug 'cohama/lexima.vim', {'do': 'sed -i \"s/has(.nvim.) && //\" autoload/lexima/insmode.vim'}
Plug 'editorconfig/editorconfig-vim'
Plug 'gmarik/Vundle.vim'
Plug 'hdima/python-syntax'
Plug 'jeetsukumaran/vim-buffergator'
Plug 'kien/ctrlp.vim'
Plug 'kristijanhusak/vim-hybrid-material'
Plug 'neoclide/coc.nvim', {'branch': 'release'}
Plug 'NLKNguyen/papercolor-theme'
Plug 'nixprime/cpsm', {'do': './install.sh'}
Plug 'octol/vim-cpp-enhanced-highlight'
Plug 'pangloss/vim-javascript'
Plug 'tmux-plugins/vim-tmux'
Plug 'tmux-plugins/vim-tmux-focus-events'
Plug 'tomtom/tcomment_vim'
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'
call plug#end()

let g:ycm_global_ycm_extra_conf = '~/.vim/.ycm_extra_conf.py'

let mapleader=","

:command W w
:command Q q
:command WQ wq
:command Wq wq
nnoremap j gj
nnoremap k gk

" don't store .swp files in the file's own directory
" neither for .ext~ files
set directory=/home/billie/.vim/tmp/
set backupdir=/home/billie/.vim/tmp/

 " Autoindent for filetype
filetype plugin indent on
set autoindent

set encoding=utf-8
set scrolloff=5
set sidescrolloff=10

set completeopt-=preview

set backspace=indent,eol,start

" Splits
set splitbelow
set splitright

" CtrlP
let g:ctrlp_match_func = {'match': 'cpsm#CtrlPMatch'}
nnoremap <silent> <C-o> :CtrlPBuffer<CR>
let g:cpsm_unicode=1
let g:ctrlp_user_command = ['.git/', 'git --git-dir=%s/.git ls-files -oc --exclude-standard']

" Unsaved buffer switching
set hidden

" Line numbering
set number
set numberwidth=4
:set mouse=a

" Allow xterm-key usage inside tmux
execute "set <xUp>=\e[1;*A"
execute "set <xDown>=\e[1;*B"
execute "set <xRight>=\e[1;*C"
execute "set <xLeft>=\e[1;*D"

" Persistent undo
set undodir=~/.vim/undodir/
set undofile
set undolevels=1000
set undoreload=10000

" Searching
set ignorecase
set smartcase
set incsearch
set hlsearch
nnoremap <leader><space> :noh<CR>

" Text wrapping
set lbr

" Tabs
if has("autocmd")
    filetype plugin indent on
    autocmd FileType make set tabstop=8 shiftwidth=8 softtabstop=0 noexpandtab
endif

" Quickfix
nnoremap <silent> <leader>f :YcmCompleter FixIt<CR>:cexpr []<CR>:cclose<CR>
nnoremap <silent> <leader>g :YcmCompleter GoTo<CR>


" Terminal colors
set t_Co=256
set background=dark
let g:airline_theme="solarized"
let g:airline_solarized_bg="dark"

set tabstop=4
set shiftwidth=4
set softtabstop=4
set expandtab

" Commenting
nnoremap <silent> <leader>c :TComment<CR>
nnoremap <silent> <leader>C :TCommentBlock<CR>
vnoremap <silent> <leader>c :TCommentInline<CR>
vnoremap <silent> <leader>C :TCommentBlock<CR>

" Tab completion
set wildmode=longest,list
set wildmenu

set guifont=Ubuntu\ Mono\ derivative\ Powerline\ 13
let g:airline_powerline_fonts = 1
set laststatus=2
set ttimeoutlen=50

" Color scheme
syntax enable
let python_highlight_all=1
let g:solarized_termcolors=256
colorscheme hybrid_material

" Remap u to y
vnoremap u y

" Save clipboard on quit
autocmd VimLeave * call system("xsel -ib", getreg('+'))

" Automatically remove trailing spaces
autocmd BufWritePre * :%s/\s\+$//e

" Use deoplete.
autocmd FileType python let g:deoplete#enable_at_startup = 1

" VPW: set filetype for .py3
autocmd BufRead,BufNewFile *.py3 set filetype=python

" Vue indent
autocmd FileType vue setlocal shiftwidth=2 softtabstop=2 expandtab
autocmd FileType javascript setlocal shiftwidth=2 softtabstop=2 expandtab
autocmd FileType vue syntax sync fromstart

" Disable shift+k for manual lookup
map <S-k> <Nop>

" Prolog: set filetype for .pl
autocmd BufRead,BufNewFile *.pl set filetype=prolog

" Disable modelines, fix CVE
set modelines=0
set nomodeline

" Coc extensions
let g:coc_global_extensions = []
command! -nargs=1 Ext :call add(g:coc_global_extensions, <args>)

Ext 'coc-snippets'
Ext 'coc-emoji'
Ext 'coc-highlight'
Ext 'coc-emmet'
Ext 'coc-vimtex'
Ext 'coc-json'
Ext 'coc-tabnine'
Ext 'coc-java'

delc Ext

" Tab for completion

" use <tab> for trigger completion and navigate to the next complete item
function! s:check_back_space() abort
  let col = col('.') - 1
  return !col || getline('.')[col - 1]  =~ '\s'
endfunction

inoremap <silent><expr> <Tab>
      \ pumvisible() ? "\<C-n>" :
      \ <SID>check_back_space() ? "\<Tab>" :
      \ coc#refresh()