.vimrc

set nocompatible      " We're running Vim, not Vi!
filetype off

call plug#begin('~/.vim/plugged')
Plug 'rhysd/vim-crystal'
Plug 'tpope/vim-rails'
Plug 'vim-ruby/vim-ruby'
Plug 'scrooloose/nerdcommenter'
Plug 'tpope/vim-haml'
Plug 'kchmck/vim-coffee-script'
Plug 'mxw/vim-jsx'
Plug 'mtscout6/vim-cjsx'
Plug 'scrooloose/syntastic'
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'
Plug 'pangloss/vim-javascript'
Plug 'tpope/vim-fugitive'
Plug 'suan/vim-instant-markdown', {'rtp': 'after'}
Plug 'kien/ctrlp.vim'
Plug 'elixir-editors/vim-elixir'
Plug 'christoomey/vim-tmux-navigator'
Plug 'hashivim/vim-terraform'
Plug 'vimwiki/vimwiki'
Plug 'fatih/vim-go'
Plug 'leafgarland/typescript-vim'
Plug 'cespare/vim-toml'
Plug 'shmup/vim-sql-syntax'
Plug 'drewtempelmeyer/palenight.vim'
Plug 'mattn/emmet-vim'
Plug 'neoclide/coc.nvim', {'branch': 'release'}
Plug 'iamcco/coc-tailwindcss',  {'do': 'yarn install --frozen-lockfile && yarn run build'}
call plug#end()

set background=dark
colorscheme palenight
let g:airline_theme = "palenight"

syntax on                  " Enable syntax highlighting

set encoding=utf8          " Set utf8 as the default encoding
set history=5000           " Increase history size
set hlsearch               " Highlight search results
set ignorecase             " Ignore case when searching
set number                 " Show line numbers
set ruler                  " Show the current cursor position at the bottom right corner
set shell=/bin/zsh         " Set shell
set nobackup               " Do not keep backup files, everything is in git
set nowritebackup
set noswapfile             " Do not create annoying swap files
set autoindent             " Auto indent according to previous line
set expandtab              " Use spaces instead of tabs
set shiftwidth=2           " Tab key indents 2 spaces
set tabstop=2
set si                     " Smart indent
set wrap                   " Wrap lines
set clipboard+=unnamed     " Copy across different instances of vim
set hidden                 " Switch between buffers without having to save first
set cursorline             " Find the current line quickly
set incsearch              " Highlight while searching with / or ?.
set hlsearch               " Keep matches highlighted

set ttyfast                " Faster redrawing
set lazyredraw             " Only redraw when necessary

set cmdheight=2            " Give more space for displaying messages
set updatetime=300         " Having longer updatetime (default is 4000 ms = 4 s) leads to noticeable delays and poor user experience

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

" Spell-checking for Markdown files only
autocmd BufRead,BufNewFile *.md, *.txt setlocal spell

" Set the leader key
let mapleader = ","

"map <Leader>r :!ruby %<CR>      " Run the current file against ruby
"map <Leader>s :!rspec -c %<CR>  " Run the current file against rspec
"map <Leader>g :!go run %<CR>    " Run the current file again go

" Change the default mapping and the default command to invoke CtrlP:
nnoremap <leader>p :CtrlP<CR>

" Smart way to move between windows
map <C-j> <C-W>j
map <C-k> <C-W>k
map <C-h> <C-W>h
map <C-l> <C-W>l

" Switch between buffers
nnoremap <leader><leader> <c-^>

" Clear the search buffer when hitting return
"nnoremap <CR> :nohlsearch<cr>

autocmd FileType ruby,eruby let g:rubycomplete_buffer_loading = 1
autocmd FileType ruby,eruby let g:rubycomplete_classes_in_global = 1
autocmd FileType ruby,eruby let g:rubycomplete_rails = 1

let g:jsx_ext_required = 0

" let g:instant_markdown_autostart = 1

" For vim-slim to make highlighting work
"autocmd BufNewFile,BufRead *.slim set ft=slim

let g:go_fmt_command = "goimports"   " Run goimports along gofmt on each save
let g:go_auto_type_info = 1          " Automatically get signature/type info for object under cursor

" highlight trailing whitespaces
highlight ExtraWhitespace ctermbg=red guibg=red
match ExtraWhitespace /\s\+$/

" 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

" 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

" Make <CR> auto-select the first completion item and notify coc.nvim to
" format on enter, <cr> could be remapped by other vim plugin
inoremap <silent><expr> <cr> pumvisible() ? coc#_select_confirm()
                              \: "\<C-g>u\<CR>\<c-r>=coc#on_enter()\<CR>"

" 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>')
  elseif (coc#rpc#ready())
    call CocActionAsync('doHover')
  else
    execute '!' . &keywordprg . " " . expand('<cword>')
  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)

" Remap <C-f> and <C-b> for scroll float windows/popups.
" Note coc#float#scroll works on neovim >= 0.4.0 or vim >= 8.2.0750
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>"

" NeoVim-only mapping for visual mode scroll
" Useful on signatureHelp after jump placeholder of snippet expansion
if has('nvim')
  vnoremap <nowait><expr> <C-f> coc#float#has_scroll() ? coc#float#nvim_scroll(1, 1) : "\<C-f>"
  vnoremap <nowait><expr> <C-b> coc#float#has_scroll() ? coc#float#nvim_scroll(0, 1) : "\<C-b>"
endif

" 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')

" Add (Neo)Vim's native statusline support.
" NOTE: Please see `:h coc-status` for integrations with external plugins that
" provide custom statusline: lightline.vim, vim-airline.
set statusline^=%{coc#status()}%{get(b:,'coc_current_function','')}

" 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>