init.vim

" plugins {{{
call plug#begin('~/.local/share/nvim/plugged')

Plug 'davidhalter/jedi-vim'
Plug 'neoclide/coc.nvim', {'do': 'yarn install --frozen-lockfile'}
Plug 'derekwyatt/vim-scala'
Plug 'tpope/vim-surround'
Plug 'tpope/vim-fugitive'
Plug 'tpope/vim-rhubarb'
Plug 'bling/vim-airline'
Plug 'neovimhaskell/haskell-vim'
Plug 'mhartington/oceanic-next'
Plug 'nightsense/snow'
Plug 'tpope/vim-sensible'
Plug 'ndmitchell/ghcid', { 'rtp': 'plugins/nvim' }
Plug 'pangloss/vim-javascript'
Plug 'MaxMEllon/vim-jsx-pretty'
Plug 'scrooloose/nerdcommenter'
Plug 'scrooloose/nerdtree'
Plug 'mattn/emmet-vim'
Plug 'junegunn/fzf', { 'dir': '~/.fzf', 'do': './install --all' }
Plug 'junegunn/fzf.vim'
Plug 'diepm/vim-rest-console'
Plug 'stephpy/vim-yaml'

call plug#end()
" }}}

" basic config {{{
filetype plugin on

let mapleader=" "

let $PATH="/Users/pepe/homebrew/bin:/Users/pepe/.nix-profile/bin:/nix/var/nix/profiles/default/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Users/pepe/.zsh/plugins/z"

set expandtab

nnoremap <down> <C-W><C-J>
nnoremap <up> <C-W><C-K>
nnoremap <right> <C-W><C-L>
nnoremap <left> <C-W><C-H>

nnoremap <leader>ev :vsplit ~/.config/nvim/init.vim<cr>
nnoremap <leader>ag :Ag<cr>

nnoremap <C-p> :FZF<cr>
let $FZF_DEFAULT_COMMAND='ag -g ""'

" 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

map <C-n> :NERDTreeToggle<CR>
" }}}

" ctrlp {{{
let g:ctrlp_user_command = ['.git/', 'git --git-dir=%s/.git ls-files -oc --exclude-standard']
" }}}

" appearance {{{
set encoding=UTF-8

set foldmethod=marker

if strftime('%H') >= 7 && strftime('%H') < 19
  set background=light
  let g:airline_theme='snow_light'

else
  set background=dark
  let g:airline_theme='snow_dark'
endif
colorscheme snow

set relativenumber
" }}}

" folding {{{
nnoremap <tab> za
" }}}

" Git {{{
nnoremap <leader>gs :Gstatus<cr>
" }}}

" coc.nvim {{{
let g:coc_node_path="/Users/pepe/homebrew/bin/node"

" 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>"

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

" js {{{
augroup javascript_folding
    au!
    au FileType javascript setlocal foldmethod=syntax
augroup END

set conceallevel=1

autocmd FileType javascript setlocal ts=2 sts=2 sw=2
" }}}

" Haskell {{{
autocmd FileType haskell setlocal ts=2 sts=2 sw=2
" }}}

" Scala {{{
au BufRead,BufNewFile *.sbt set filetype=scala
" }}}