mappings.vim

" Mappings

" Set internal encoding of vim, not needed on neovim, since coc.nvim using some
" unicode characters in the file autoload/float.vim
set encoding=utf-8

" TextEdit might fail if hidden is not set.
set hidden

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

" Give 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

" easier navigation
nnoremap j gj
nnoremap k gk
"
" Map Y to act like D and C, i.e. to yank until EOL, rather than act as yy,
" which is the default
map Y y$

" turn off search highlighting until the next search
nnoremap <C-c> :nohl<CR>

"indent shortcuts
nnoremap <space> zO
vnoremap <space> zC

"center screen when jumping to next search match
" nmap n nzz

" nice window sitting
" nnoremap \| :vsp<CR>
" nnoremap - :sp<CR>

" remap esc to jj in insert mode
inoremap jj <Esc>

" bufers
nnoremap ,, :buffers<CR>:buffer<Space>
nnoremap <C-J> :bnext<CR>
nnoremap <C-K> :bprev<CR>

" bracket and paren closing
inoremap {      {}<Left>
inoremap {<CR>  {<CR>}<Esc>O
inoremap {{     {
inoremap {}     {}

inoremap [      []<Left>
inoremap [<CR>  [<CR>]<Esc>O
inoremap [[     [
inoremap []     []

inoremap (      ()<Left>
inoremap (<CR>  (<CR>)<Esc>O
inoremap ((     (
inoremap ()     ()

inoremap "      ""<Left>
inoremap "<CR>  "<CR>"<Esc>O
inoremap ""     "
inoremap ""     ""

" highlight when searching for matching bracket (%)
nnoremap  % v%

" yank to  clipboard
vnoremap ytc "+y
nnoremap ytc "+y

" paste from clipboard
nnoremap pfc "+p

" go to just before the first non-blank text of the line
inoremap II <Esc>I
" move to end of line, but stay in insert mode
inoremap AA <Esc>A
" start editing on a new line above the current line
inoremap OO <Esc>O

nnoremap <leader>D :%bdelete<CR>

" horizontal scrolling
nnoremap <C-L> 20zl " Scroll 20 characters to the right
nnoremap <C-H> 20zh " Scroll 20 characters to the left

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""""""""""""""""""""""""        COC-specific      """"""""""""""""""""""""""""""
""""""""""""""""""""""""          mappings        """"""""""""""""""""""""""""""
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" Always show the signcolumn, otherwise it would shift the text each time
" diagnostics appear/become resolved.
if has("nvim-0.5.0") || 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> <leader>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><C-f>  <Plug>(coc-format-selected)
nmap <leader><C-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.
if has('nvim-0.4.0') || has('patch-8.2.0750')
  nnoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? coc#float#scroll(1) : "\<C-f>"
  nnoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? coc#float#scroll(0) : "\<C-b>"
  inoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? "\<c-r>=coc#float#scroll(1)\<cr>" : "\<Right>"
  inoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? "\<c-r>=coc#float#scroll(0)\<cr>" : "\<Left>"
  vnoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? coc#float#scroll(1) : "\<C-f>"
  vnoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? coc#float#scroll(0) : "\<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>
" go to symbol under cursor
nnoremap <silent> gts :exe 'CocList -I --normal --input='.expand('<cword>').' symbols'<CR><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>
" show cocAction
nnoremap <silent><nowait> <space>ac  :<C-u>CocAction<CR>

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""""""""""""""""""""""""                          """"""""""""""""""""""""""""""
""""""""""""""""""""""""    Vimspector-specific   """"""""""""""""""""""""""""""
""""""""""""""""""""""""        mappings          """"""""""""""""""""""""""""""
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nmap <silent> vtb <Plug>VimspectorToggleBreakpoint
nmap <silent> vdl :call vimspector#Launch()
nmap <silent> vdr <Plug>VimspectorRestart
nmap <silent> vdc <Plug>VimspectorContinue
nmap <silent> vdsov <Plug>VimspectorStepOver
nmap <silent> vdsou <Plug>VimspectorStepOut
nmap <silent> vdsi <Plug>VimspectorStepInto