function! ConfigureCocNVIM()
" ============ coc.nvim ===========
	" if hidden is not set, TextEdit might fail.
	set hidden

	" Some servers have issues with backup files, see #649
	set nobackup
	set nowritebackup

	" Better display for messages
	"set cmdheight=2

	" You will have bad experience for diagnostic messages when it's default 4000.
	set updatetime=300

	" don't give |ins-completion-menu| messages.
	set shortmess+=c

	" always show signcolumns
	set signcolumn=yes

	" Use tab for trigger completion with characters ahead and navigate.
	" Use command ':verbose imap <tab>' to make sure tab is not mapped by other plugin.
	inoremap <silent><expr> <TAB>
		  \ pumvisible() ? "\<C-n>" :
		  \ <SID>check_back_space() ? "\<TAB>" :
		  \ coc#refresh()
	inoremap <expr><S-TAB> pumvisible() ? "\<C-p>" : "\<C-h>"

	function! s:check_back_space() abort
	  let col = col('.') - 1
	  return !col || getline('.')[col - 1]  =~# '\s'
	endfunction

	" Use <c-space> to trigger completion.
	inoremap <silent><expr> <c-space> coc#refresh()

	" Use <cr> to confirm completion, `<C-g>u` means break undo chain at current position.
	" Coc only does snippet and additional edit on confirm.
	inoremap <expr> <cr> pumvisible() ? "\<C-y>" : "\<C-g>u\<CR>"
	" Or use `complete_info` if your vim support it, like:
	" inoremap <expr> <cr> complete_info()["selected"] != "-1" ? "\<C-y>" : "\<C-g>u\<CR>"

	" Use `[g` and `]g` to navigate diagnostics
	nmap <silent> [g <Plug>(coc-diagnostic-prev)
	nmap <silent> ]g <Plug>(coc-diagnostic-next)

	" Remap keys for gotos
	nmap <silent> gd <Plug>(coc-definition)
	nmap <silent> gy <Plug>(coc-type-definition)
	nmap <silent> gi <Plug>(coc-implementation)
	nmap <silent> gr <Plug>(coc-references)

	" Use K to show documentation in preview window
	nnoremap <silent> K :call <SID>show_documentation()<CR>

	function! s:show_documentation()
	  if (index(['vim','help'], &filetype) >= 0)
		execute 'h '.expand('<cword>')
	  else
		call CocAction('doHover')
	  endif
	endfunction

	" Highlight symbol under cursor on CursorHold
	autocmd CursorHold * silent call CocActionAsync('highlight')

	" Remap for rename current word
	nmap <leader>rn <Plug>(coc-rename)

	" Remap for format selected region
	xmap <leader>f  <Plug>(coc-format-selected)
	nmap <leader>f  <Plug>(coc-format-selected)

	augroup mygroup
	  autocmd!
	  " Setup formatexpr specified filetype(s).
	  autocmd FileType typescript,json setl formatexpr=CocAction('formatSelected')
	  " Update signature help on jump placeholder
	  autocmd User CocJumpPlaceholder call CocActionAsync('showSignatureHelp')
	augroup end

	" Remap for do codeAction of selected region, ex: `<leader>aap` for current paragraph
	xmap <leader>a  <Plug>(coc-codeaction-selected)
	nmap <leader>a  <Plug>(coc-codeaction-selected)

	" Remap for do codeAction of current line
	nmap <leader>ac  <Plug>(coc-codeaction)
	" Fix autofix problem of current line
	nmap <leader>qf  <Plug>(coc-fix-current)

	" Create mappings for function text object, requires document symbols feature of languageserver.
	xmap if <Plug>(coc-funcobj-i)
	xmap af <Plug>(coc-funcobj-a)
	omap if <Plug>(coc-funcobj-i)
	omap af <Plug>(coc-funcobj-a)

	" Use <TAB> for select selections ranges, needs server support, like: coc-tsserver, coc-python
	"nmap <silent> <TAB> <Plug>(coc-range-select)
	"xmap <silent> <TAB> <Plug>(coc-range-select)

	" Use `:Format` to format current buffer
	command! -nargs=0 Format :call CocAction('format')

	" Use `:Fold` to fold current buffer
	command! -nargs=? Fold :call     CocAction('fold', <f-args>)

	" use `:OR` for organize import of current buffer
	command! -nargs=0 OR   :call     CocAction('runCommand', 'editor.action.organizeImport')

	" Add status line support, for integration with other plugin, checkout `:h coc-status`
	set statusline^=%{coc#status()}%{get(b:,'coc_current_function','')}

	" Using CocList
	" Show all diagnostics
	nnoremap <silent> <space>a  :<C-u>CocList diagnostics<cr>
	" Manage extensions
	nnoremap <silent> <space>e  :<C-u>CocList extensions<cr>
	" Show commands
	nnoremap <silent> <space>c  :<C-u>CocList commands<cr>
	" Find symbol of current document
	nnoremap <silent> <space>o  :<C-u>CocList outline<cr>
	" Search workspace symbols
	nnoremap <silent> <space>s  :<C-u>CocList -I symbols<cr>
	" Do default action for next item.
	nnoremap <silent> <space>j  :<C-u>CocNext<CR>
	" Do default action for previous item.
	nnoremap <silent> <space>k  :<C-u>CocPrev<CR>
	" Resume latest coc list
	nnoremap <silent> <space>p  :<C-u>CocListResume<CR>
endfunction

autocmd! User coc.nvim call ConfigureCocNVIM()

if !has("nvim")
	" lj
	let g:LustyJugglerSuppressRubyWarning = 1
endif

" neosnippet
" Plugin key-mappings.
" Note: It must be "imap" and "smap".  It uses <Plug> mappings.
imap <C-k>     <Plug>(neosnippet_expand_or_jump)
smap <C-k>     <Plug>(neosnippet_expand_or_jump)
xmap <C-k>     <Plug>(neosnippet_expand_target)

" SuperTab like snippets behavior.
" Note: It must be "imap" and "smap".  It uses <Plug> mappings.
imap <expr><tab> neosnippet#expandable_or_jumpable() ? "\<Plug>(neosnippet_expand_or_jump)" : pumvisible() ? "\<c-n>" : "\<tab>"
smap <expr><tab> neosnippet#expandable_or_jumpable() ? "\<Plug>(neosnippet_expand_or_jump)" : "\<tab>"

" For conceal markers.
if has('conceal')
  set conceallevel=2 concealcursor=niv
endif
" Enable snipMate compatibility feature.
let g:neosnippet#enable_snipmate_compatibility = 1
let g:neosnippet#snippets_directory='~/.vim/custom-snippets'


" rainbow
let g:rainbow_conf = {
\	'guifgs': ['#DC322F', 'royalblue3', 'darkorange3', 'seagreen3'],
\	'ctermfgs': ['lightred', 'lightblue', 'lightyellow', 'lightcyan', 'lightmagenta'],
\}
let g:rainbow_active = 1


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


" LSP
let g:LanguageClient_autoStart = 0

" deoplete
let g:deoplete#enable_at_startup = 1

" ==== delimitMate ====
let g:delimitMate_matchpairs = "(:),[:],{:}"
let g:delimitMate_expand_cr = 1
let g:delimitMate_expand_space = 1
let g:delimitMate_autoclose = 1


" Solarized stuff
" let g:solarized_termtrans=0
" let g:solarized_degrade=0
" let g:solarized_bold=1
" let g:solarized_underline=1
" let g:solarized_italic=1
" let g:solarized_termcolors=16
" let g:solarized_contrast="normal"
let g:solarized_visibility="high"
" let g:solarized_diffmode="normal"
" let g:solarized_hitrail=0
let g:solarized_menu=1


" youcompleteme
let g:ycm_filetype_blacklist = {
	\ 'notes' : 1,
	\ 'markdown' : 1,
	\ 'text' : 1,
	\ 'java' : 1,
	\}
let g:ycm_confirm_extra_conf = 0
let g:ycm_global_ycm_extra_conf='~/.vim/.ycm_extra_conf.py'
let g:ycm_collect_identifiers_from_tags_files = 1
let g:ycm_seed_identifiers_with_syntax = 0
" let g:ycm_always_populate_location_list = 1
let g:ycm_autoclose_preview_window_after_completion = 1
let g:ycm_key_invoke_completion = '<C-Space>'
let g:ycm_key_list_select_completion = ['<TAB>']
let g:ycm_key_list_previous_completion = ['<S-TAB>']
" nnoremap <F4> :YcmCompleter GoToDefinition<CR>
let g:ycm_server_log_level = 'error'
let g:ycm_semantic_triggers = {'haskell' : ['. ', '$ ']}
let g:ycm_goto_buffer_command = 'horizontal-split'


" commenting
let NERDSpaceDelims=1
let NERDCreateDefaultMappings=0

" haskellmode, needs to load early
let g:haddock_browser='/usr/bin/firefox'
let g:haddock_browser_callformat='%s file://%s >/dev/null 2>&1 &'

" ctrlp
let g:ctrlp_user_command = 'fd --type f --color=never "" %s'
let g:ctrlp_use_caching = 1
let g:ctrlp_match_func = { 'match': 'cpsm#CtrlPMatch' }

" fzf
" --column: Show column number
" --line-number: Show line number
" --no-heading: Do not show file headings in results
" --fixed-strings: Search term as a literal string
" --ignore-case: Case insensitive search
" --no-ignore: Do not respect .gitignore, etc...
" --hidden: Search hidden files and folders
" --follow: Follow symlinks
" --glob: Additional conditions for search (in this case ignore everything in the .git/ folder)
" --color: Search color options
command! -bang -nargs=* Find call fzf#vim#grep('rg --column --line-number --no-heading --fixed-strings --ignore-case --no-ignore --hidden --follow --glob "!.git/*" --color "always" '.shellescape(<q-args>), 1, <bang>0)

function! WithGitRoot()
  let groot = systemlist('git -C ' . expand('%:p:h') . ' rev-parse --show-toplevel')[0]
  return v:shell_error ? {} : {'dir': groot}
endfunction

command! -nargs=* Rag
  \ call fzf#vim#ag(<q-args>,  WithGitRoot())