.vimrc

set nocompatible

" install vim-plug if missing
if empty(glob('~/.vim/autoload/plug.vim'))
  silent !curl -fLo ~/.vim/autoload/plug.vim --create-dirs
    \ https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim
  autocmd VimEnter * PlugInstall --sync | source $MYVIMRC
endif

" vim-plug
call plug#begin('~/.vim/plugged')
" vim help for vim-plug
Plug 'junegunn/vim-plug'
" completion
Plug 'neoclide/coc.nvim', {'branch': 'release'}
" coc extensions
Plug 'weirongxu/coc-calc'
Plug 'clangd/coc-clangd'
Plug 'voldikss/coc-cmake'
Plug 'neoclide/coc-css'
Plug 'neoclide/coc-eslint'
Plug 'josa42/coc-go'
Plug 'neoclide/coc-html'
Plug 'pappasam/coc-jedi'
Plug 'neoclide/coc-json'
Plug 'fannheyward/coc-markdownlint'
Plug 'neoclide/coc-prettier'
Plug 'josa42/coc-sh'
Plug 'neoclide/coc-solargraph'
Plug 'klaaspieter/coc-sourcekit'
Plug 'fannheyward/coc-sql'
Plug 'iamcco/coc-spell-checker'
Plug 'kkiyama117/coc-toml'
Plug 'fannheyward/coc-texlab'
Plug 'neoclide/coc-tsserver', {'do': 'yarn install --frozen-lockfile'}
Plug 'fannheyward/coc-xml'
Plug 'iamcco/coc-vimlsp'
Plug 'neoclide/coc-yaml'
" git / scm
Plug 'tpope/vim-fugitive'
Plug 'airblade/vim-gitgutter'
" linting
Plug 'w0rp/ale'
" navigation
Plug 'ctrlpvim/ctrlp.vim'
Plug 'rizzatti/dash.vim'
Plug 'ludovicchabant/vim-gutentags'
" visual status
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'
Plug 'vim-scripts/ShowTrailingWhitespace'
" frameworks
Plug 'tpope/vim-rails'
" color schemes
Plug 'altercation/vim-colors-solarized'
" icons
Plug 'ryanoasis/vim-devicons'
" snippets
Plug 'honza/vim-snippets'
" syntax
Plug 'cespare/vim-toml'
call plug#end()

" Enable Copilot if running NeoVim, disable otherwise
if has('nvim')
    autocmd VimEnter * if exists(':Copilot') | Copilot enable | endif
else
    autocmd VimEnter * if exists(':Copilot') | Copilot disable | endif
endif

" theme
set background=dark
let g:solarized_visibility = 'high'
let g:solarized_contrast = 'high'
let g:solarized_termtrans = 1
colorscheme solarized

set encoding=utf8 " vim-devicons glyphs

set hidden
set directory=~/.vim/swapfiles//

" more space for displaying messages.
set cmdheight=2

" Having longer updatetime (default is 4000 ms = 4 s) leads to noticeable
" delays and poor user experience.
set updatetime=300

" Don't pass messages to |ins-completion-menu|.
set shortmess+=c

" Always show the signcolumn, otherwise it would shift the text each time
" diagnostics appear/become resolved.
if has("patch-8.1.1564")
  " Recently vim can merge signcolumn and number column into one
  set signcolumn=number
else
  set signcolumn=yes
endif

set noerrorbells
set visualbell
set t_vb=

set autoindent
set smartindent
set smarttab
set expandtab

" default indentation
set shiftwidth=2 " sw
set tabstop=2 " ts
set softtabstop=2 " sts

" line length stuff
set wrap
set linebreak
set colorcolumn=80

" language-specific
autocmd Filetype cpp setlocal ts=4 sw=4 sts=4 expandtab colorcolumn=120
autocmd Filetype groovy setlocal ts=4 sw=4 sts=4 expandtab colorcolumn=100
autocmd Filetype kotlin setlocal ts=4 sw=4 sts=4 expandtab colorcolumn=100
autocmd Filetype java setlocal ts=4 sw=4 sts=4 expandtab colorcolumn=120
autocmd Filetype objc setlocal ts=4 sw=4 sts=4 expandtab colorcolumn=120
autocmd Filetype objcpp setlocal ts=4 sw=4 sts=4 expandtab colorcolumn=120
autocmd Filetype swift setlocal ts=4 sw=4 sts=4 expandtab colorcolumn=120

set scrolloff=8
set sidescrolloff=15
set sidescroll=1

set ruler
set number
set showcmd
set noshowmode
set autoread

set backspace=2

set cul
set gcr=a:blinkon0

" show airline on start
set laststatus=2

" avoid wearing out shift key
nore ; :
nore , ;

" easier move between splits
nnoremap <C-h> <C-w>h
nnoremap <C-j> <C-w>j
nnoremap <C-k> <C-w>k
nnoremap <C-l> <C-w>l

nnoremap Y y$

" quick list of registers
nnoremap <silent> "" :registers "0123456789abcdefghijklmnopqrstuvwxyz*+.<CR>

" begin coc-nvim related config:

" Use tab for trigger completion with characters ahead and navigate.
" NOTE: Use command ':verbose imap <tab>' to make sure tab is not mapped by
" other plugin before putting this into your config.
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.
if has('nvim')
  inoremap <silent><expr> <c-space> coc#refresh()
else
  inoremap <silent><expr> <c-@> coc#refresh()
endif

" Use <cr> to confirm completion, `<C-g>u` means break undo chain at current
" position. Coc only does snippet and additional edit on confirm.
" <cr> could be remapped by other vim plugin, try `:verbose imap <CR>`.
if exists('*complete_info')
  inoremap <expr> <cr> complete_info()["selected"] != "-1" ? "\<C-y>" : "\<C-g>u\<CR>"
else
  inoremap <expr> <cr> pumvisible() ? "\<C-y>" : "\<C-g>u\<CR>"
endif

" Use `[g` and `]g` to navigate diagnostics
" Use `:CocDiagnostics` to get all diagnostics of current buffer in location list.
nmap <silent> [g <Plug>(coc-diagnostic-prev)
nmap <silent> ]g <Plug>(coc-diagnostic-next)

" GoTo code navigation.
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 the symbol and its references when holding the cursor.
autocmd CursorHold * silent call CocActionAsync('highlight')

" Symbol renaming.
nmap <leader>rn <Plug>(coc-rename)

" Formatting selected code.
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

" Applying codeAction to the selected region.
" Example: `<leader>aap` for current paragraph
xmap <leader>a  <Plug>(coc-codeaction-selected)
nmap <leader>a  <Plug>(coc-codeaction-selected)

" Remap keys for applying codeAction to the current buffer.
nmap <leader>ac  <Plug>(coc-codeaction)
" Apply AutoFix to problem on the current line.
nmap <leader>qf  <Plug>(coc-fix-current)

" Map function and class text objects
" NOTE: Requires 'textDocument.documentSymbol' support from the language server.
xmap if <Plug>(coc-funcobj-i)
omap if <Plug>(coc-funcobj-i)
xmap af <Plug>(coc-funcobj-a)
omap af <Plug>(coc-funcobj-a)
xmap ic <Plug>(coc-classobj-i)
omap ic <Plug>(coc-classobj-i)
xmap ac <Plug>(coc-classobj-a)
omap ac <Plug>(coc-classobj-a)

" Use CTRL-S for selections ranges.
" Requires 'textDocument/selectionRange' support of language server.
nmap <silent> <C-s> <Plug>(coc-range-select)
xmap <silent> <C-s> <Plug>(coc-range-select)

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

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

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

" :h coc-status` for integrations with external plugins that
" provide custom statusline: lightline.vim, vim-airline.

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

" end coc-nvim related config:

" mvim settings
if has("gui_running")
  set guioptions-=T
  set guioptions-=r
  set guioptions-=L
endif

set guifont=Hack\ Nerd\ Font:h13

" airline settings
let g:airline#extensions#ale#enabled = 1
let g:airline#extensions#tabline#enabled = 1
let g:airline#extensions#tabline#fnamemod = ':t'

" ale settings
let g:ale_lint_on_text_changed = 'normal'

" ctrlp settings
set wildignore+=*/tmp/*,*.so,*.swp,*.zip
"let g:ctrlp_custom_ignore = {
"  \ 'dir':  '\v[\/](\.(git|hg|svn)|\_site)$',
"  \ 'file': '\v\.(exe|so|dll|class|png|jpg|jpeg|xib|xcconfig)$',
"\}
let g:ctrlp_user_command = ['.git', 'cd %s && git ls-files -co --exclude-standard']
" let g:ctrlp_user_command = ['ag %s --path-to-ignore ~/.ignore -l --nocolor --hidden -g ""']

" utilsnips settings
let g:UltiSnipsExpandTrigger = "<tab>"
let g:UltiSnipsJumpForwardTrigger = "<tab>"
let g:UltiSnipsJumpBackwardTrigger = "<s-tab>"

" vim-go
let g:go_highlight_functions = 1
let g:go_highlight_methods = 1
let g:go_highlight_fields = 1
let g:go_highlight_types = 1
let g:go_highlight_operators = 1
let g:go_highlight_build_constraints = 1
let g:go_list_type = 'quickfix'

" vim-jsx
let g:jsx_ext_required = 0

" vim-devicons settings
let g:airline_powerline_fonts = 1
let g:WebDevIconsNerdTreeAfterGlyphPadding = ''

" spell check by file type
au FileType Markdown setlocal spell
au FileType HTML setlocal spell
au FileType eruby setlocal spell

" force file type for unknowns
au BufNewFile,BufRead *.ejs set filetype=html
au BufNewFile,BufRead *.jst.ejs set filetype=html
au BufNewFile,BufRead *.es6 set filetype=javascript
au BufNewFile,BufRead Brewfile,Dangerfile,*.danger,Podfile,*.podspec set filetype=ruby

" remove trailing whitespace
fun! <SID>StripTrailingWhitespaces()
  let l = line(".")
  let c = col(".")
  %s/\s\+$//e
  call cursor(l, c)
endfun

au FileType bash,c,cpp,css,diff,dockerfile,eruby,groovy,java,javascript,
  \javascript.jsx,kotlin,markdown,objc,objcpp,php,python,ruby,sh,scss,sql,
  \swift,vim,zsh,yaml au BufWritePre <buffer>
  \ :call <SID>StripTrailingWhitespaces()

" rails projections
" adds request spec mapping for API devel when mapping is 1:1
let g:rails_projections = {
      \  "app/controllers/*_controller.rb": {
      \      "test": [
      \        "spec/requests/{}_spec.rb",
      \        "spec/controllers/{}_controller_spec.rb",
      \        "test/controllers/{}_controller_test.rb"
      \      ],
      \      "alternate": [
      \        "spec/requests/{}_spec.rb",
      \        "spec/controllers/{}_controller_spec.rb",
      \        "test/controllers/{}_controller_test.rb"
      \      ],
      \   },
      \   "spec/requests/*_spec.rb": {
      \      "command": "request",
      \      "alternate": "app/controllers/{}_controller.rb",
      \      "template": "require 'rails_helper'\n\n" .
      \        "RSpec.describe '{}' do\nend",
      \   },
      \ }