nvim_init.vim

""""""""""""
" vim-plug "
""""""""""""
call plug#begin('~/.vim/plugged')

"""""""""""
" Plugins "
"""""""""""
"""""""
" coc "
"""""""
Plug 'neoclide/coc.nvim', {'branch': 'release'}

"""""""""""""""""""
" Various plugins "
"""""""""""""""""""
" Plug 'vim-scripts/YankRing.vim'
Plug 'vim-scripts/zoomwintab.vim'
Plug 'scrooloose/nerdcommenter'
Plug 'nathanaelkane/vim-indent-guides'
Plug 'hallison/vim-markdown'
"
" Find
Plug 'jremmen/vim-ripgrep'

" Replace
Plug 'terryma/vim-multiple-cursors'

" Languages / frameworks
Plug 'pangloss/vim-javascript'
Plug 'elixir-editors/vim-elixir'
Plug 'leafOfTree/vim-svelte-plugin'
" Typescript syntax highlighting
Plug 'HerringtonDarkholme/yats.vim'
" work with hbs in ember
Plug 'joukevandermaas/vim-ember-hbs'

" Theming
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'

" theme (Oceanic-next)
Plug 'mhartington/oceanic-next'
" theme (molokai)
Plug 'tomasr/molokai'
" theme (embark)
Plug 'embark-theme/vim', { 'as': 'embark' }

" Ain't nobody got time to argue about tabs vs. spaces
Plug 'editorconfig/editorconfig-vim'
"""""""""""""""""""""""""""""""""
" Tim Pope is teh vim superhero "
""""""""""""""""""""""""""""""""""
Plug 'tpope/vim-fugitive'
Plug 'tpope/vim-surround'
Plug 'tpope/vim-repeat'
Plug 'tpope/vim-vinegar'

call plug#end()
"
"""""""""""""
" /vim-plug "
"""""""""""""

" set ',' as leader
let mapleader=","

"""""""""""""
" Look nice "
""""""""""""""
" theme settings
if (has("termguicolors"))
  set termguicolors
endif

colorscheme OceanicNext
" colorscheme molokai
" colorscheme embark

" show linenumbers
set number

""""""""""""""
" Whitespace "
""""""""""""""
" a tab is two spaces
set tabstop=2 shiftwidth=2
" use spaces, not tabs
set expandtab
" wrap lines
set wrap
set textwidth=79
set formatoptions=qrn1
set colorcolumn=79
" show end of lines
set list
set listchars=trail:·,eol:~,tab:▸\

"""""""""""""
" Searching "
"""""""""""""
" ignore case on search
set ignorecase
" unless they contain at least one capital letter
set smartcase

" dismiss highlighted search items on leader+space
nnoremap <leader><space> :noh<cr>

"""""""""""""""
" Keybindings "
"""""""""""""""

"""""""""""""""""""""
" window navigation "
"""""""""""""""""""""
" ease up window navigation
map <C-h> <C-w>h
map <C-j> <C-w>j
map <C-k> <C-w>k
map <C-l> <C-w>l
" because neovim is still alpha and without this <C-h> does not work
" see https://github.com/neovim/neovim/issues/2048
nmap <BS> <C-W>h

" Resize splits when the window is resized
au VimResized * exe "normal! \<c-w>="

" make it easy to resize windows
map + <C-W>+
map - <C-W>-
map ö <C-W><
map ä <C-W>>

""""""""
" misc "
""""""""
" no need for swapfiles¬
set noswapfile

" f9 to turn on/off highlighting of the current line
noremap <silent><f9> :set cursorline!<cr>

"""""""""""""""""
" Terminal mode "
"""""""""""""""""
tnoremap <leader><ESC> <C-\><C-n>

""""""""""""""""""""""""
" plugin customization "
""""""""""""""""""""""""
" netrw customization
map <leader><TAB> :Explore<CR>

" NERDCommenter - always use one space between comment and code
let NERDSpaceDelims=1

" ignore tmp directory for ctrlp
set wildignore+=*/tmp/*,tmp,node_modules,*/dist
" map `;` to open ctrlp in buffermode
nnoremap ; :CtrlPBuffer<CR>

" make ZoomWinTabToggle work on <leader>0
map <leader>0 :ZoomWinTabToggle<CR>

" yanking should save to system clipboard
set clipboard=unnamedplus

"""""""""""""""""""""""""""""""""""""
" better language/framework support "
"""""""""""""""""""""""""""""""""""""

" use `handlebars` instead of `html.handlebars` - important for prettier
autocmd BufRead,BufNewFile *.hbs set filetype=handlebars

"""""""""""""""""""""""""""""""
" Coc (stolen from Coc README)"
"""""""""""""""""""""""""""""""

" 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>

"""""""""""""""""""""
" Coc customization "
"""""""""""""""""""""

" show hover diagnostics coc - mimics gh from vsCode
" nmap gh :call CocAction('diagnosticInfo')<Cr>

" scroll in floating windows via
nnoremap <nowait><expr> <C-f> coc#float#has_scroll() ? coc#float#scroll(1) : "\<C-f>"
nnoremap <nowait><expr> <C-b> coc#float#has_scroll() ? coc#float#scroll(0) : "\<C-b>"
inoremap <nowait><expr> <C-f> coc#float#has_scroll() ? "\<c-r>=coc#float#scroll(1)\<cr>" : "\<Right>"
inoremap <nowait><expr> <C-b> coc#float#has_scroll() ? "\<c-r>=coc#float#scroll(0)\<cr>" : "\<Left>"

" fuzzy-find files coc
map <leader>t :CocList files<cr>
" fuzzy-find buffers
map <leader>b :CocList buffers<cr>

" install the following coc-extensions
let g:coc_global_extensions = [
  \ 'coc-tsserver',
  \ 'coc-lists',
  \ 'coc-css',
  \ 'coc-json',
  \ 'coc-html',
  \ 'coc-eslint',
  \ 'coc-highlight',
  \ 'coc-pairs',
  \ 'coc-emmet',
  \ 'coc-git',
  \ 'coc-elixir',
  \ 'coc-ember',
  \ 'coc-prettier',
  \ 'coc-tailwindcss'
\ ]