"   ____       ____    ____             __ _
"  / ___|___  / ___|  / ___|___  _ __  / _(_) __ _
" | |   / _ \| |     | |   / _ \| '_ \| |_| |/ _` |
" | |__| (_) | |___  | |__| (_) | | | |  _| | (_| |
"  \____\___/ \____|  \____\___/|_| |_|_| |_|\__, |
"                                            |___/

let g:coc_global_extensions = [
	\ 'coc-translator',
	\ 'coc-actions',
	\ 'coc-vimlsp',
	\ 'coc-python',
	\ 'coc-clangd',
	\ 'coc-json',
	\ 'coc-snippets',
	\ 'coc-todolist'
	\ ]
	" \ 'coc-bookmark',


" 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=100

" 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.
set signcolumn=yes
" 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.
" inoremap <silent><expr> <c-space> coc#refresh()
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 D to show documentation in preview window.
nnoremap <silent> D :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.
" 高亮当前光标位置的词
" autocmd CursorHold * silent call CocActionAsync('highlight')

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

" Formatting selected code.
" 代码格式化
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 for do codeAction of selected region
function! s:cocActionsOpenFromSelected(type) abort
	execute 'CocCommand actions.open ' . a:type
endfunction
xmap <silent> <leader>a :<C-u>execute 'CocCommand actions.open ' . visualmode()<CR>
nmap <silent> <leader>a :<C-u>set operatorfunc=<SID>cocActionsOpenFromSelected<CR>g@




" Remap keys for applying codeAction to the current line.
" 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 <TAB> for selections ranges.
" NOTE: Requires 'textDocument/selectionRange' support from the language server.
" coc-tsserver, coc-python are the examples of servers that support it.
" 这两句会造成ctrl-i失效
" nmap <silent> <TAB> <Plug>(coc-range-select)
" xmap <silent> <TAB> <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 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 extensions ===
" ======================

" === coc-translator ===

"" popup
"nmap <Leader>t <Plug>(coc-translator-p)
"vmap <Leader>t <Plug>(coc-translator-pv)
"" echo
"nmap <Leader>e <Plug>(coc-translator-e)
"nmap <Leader>e <Plug>(coc-translator-ev)
"" replace
"nmap <Leader>r <Plug>(coc-translator-r)
"nmap <Leader>r <Plug>(coc-translator-rv)


" === coc-todolist ===
" let g:coc_extension_root=$HOME/'.config/nvim/tmp/coc-todolist-data/'
" let g:coc_data_home=$HOME/'.config/nvim/tmp'
nnoremap <Leader>tl :CocList todolist<CR>
nnoremap <Leader>tc :CocCommand todolist.create<CR>
" nnoremap <Leader>tu :CocCommand todolist.upload: upload todolist to gist
" :CocCommand todolist.download: download todolist from gist
nnoremap <Leader>te :CocCommand todolist.export
" :CocCommand todolist.closeNotice: close notifications
" :CocCommand todolist.clear: clear all todos
" :CocCommand todolist.browserOpenGist: open todolist gist in gist.github.com


" === coc-bookmark ===
nnoremap <Leader>tk :CocList bookmark<CR>
nnoremap <Leader>tb :CocCommand bookmark.toggle<CR>
nnoremap <Leader>ta :CocCommand bookmark.annotate<CR>
" :CocCommand bookmark.prev: jump to the prev bookmark
" :CocCommand bookmark.next: jump to the next bookmark
" :CocCommand bookmark.clearForCurrentFile clear bookmark for the current file",
" :CocCommand bookmark.clearForAllFiles clear bookmark for all files",

" nmap <Leader>bj <Plug>(coc-bookmark-next)
" nmap <Leader>bk <Plug>(coc-bookmark-prev)

" === coc-snippets ===
" Use <C-l> for trigger snippet expand.
" imap <C-l> <Plug>(coc-snippets-expand)
" Use <C-j> for select text for visual placeholder of snippet.
" vmap <C-j> <Plug>(coc-snippets-select)
" Use <C-j> for jump to next placeholder, it's default of coc.nvim
" let g:coc_snippet_next = '<c-j>'
" Use <C-k> for jump to previous placeholder, it's default of coc.nvim
" let g:coc_snippet_prev = '<c-k>'
" Use <C-j> for both expand and jump (make expand higher priority.)
" imap <C-j> <Plug>(coc-snippets-expand-jump)
" let g:snips_author = 'Joe Chen'