omnisharp-vim.cfg.vim

" OmniSharp won't work without this setting
filetype plugin on

" Set the type lookup function to use the preview window instead of echoing it
"let g:OmniSharp_typeLookupInPreview = 1

" Timeout in seconds to wait for a response from the server
let g:OmniSharp_timeout = 5

" Don't autoselect first omnicomplete option, show options even if there is only
" one (so the preview documentation is accessible). Remove 'preview' if you
" don't want to see any documentation whatsoever.
set completeopt=longest,menuone,preview

" Fetch full documentation during omnicomplete requests.
" There is a performance penalty with this (especially on Mono).
" By default, only Type/Method signatures are fetched. Full documentation can
" still be fetched when you need it with the :OmniSharpDocumentation command.
"let g:omnicomplete_fetch_full_documentation = 1

" Set desired preview window height for viewing documentation.
" You might also want to look at the echodoc plugin.
set previewheight=5

" Tell ALE to use OmniSharp for linting C# files, and no other linters.
let g:ale_linters = { 'cs': ['OmniSharp'] }

let g:OmniSharp_server_path = '/c/OmniSharp/omnisharp.http-win-x64/OmniSharp.exe'
let g:OmniSharp_translate_cygwin_wsl = 1

" Fetch semantic type/interface/identifier names on BufEnter and highlight them
let g:OmniSharp_highlight_types = 1

augroup omnisharp_commands
    autocmd!

    " Show type information automatically when the cursor stops moving
    autocmd CursorHold *.cs call OmniSharp#TypeLookupWithoutDocumentation()

    " Update the highlighting whenever leaving insert mode
    autocmd InsertLeave *.cs call OmniSharp#HighlightBuffer()

    " Alternatively, use a mapping to refresh highlighting for the current buffer
    autocmd FileType cs nnoremap <buffer> <Leader>th :OmniSharpHighlightTypes<CR>

    " The following commands are contextual, based on the cursor position.
    autocmd FileType cs nnoremap <buffer> gd :OmniSharpGotoDefinition<CR>
    autocmd FileType cs nnoremap <buffer> <Leader>fi :OmniSharpFindImplementations<CR>
    autocmd FileType cs nnoremap <buffer> <Leader>fs :OmniSharpFindSymbol<CR>
    autocmd FileType cs nnoremap <buffer> <Leader>fu :OmniSharpFindUsages<CR>

    " Finds members in the current buffer
    autocmd FileType cs nnoremap <buffer> <Leader>fm :OmniSharpFindMembers<CR>

    autocmd FileType cs nnoremap <buffer> <Leader>fx :OmniSharpFixUsings<CR>
    autocmd FileType cs nnoremap <buffer> <Leader>tt :OmniSharpTypeLookup<CR>
    autocmd FileType cs nnoremap <buffer> <Leader>dc :OmniSharpDocumentation<CR>
    autocmd FileType cs nnoremap <buffer> <C-\> :OmniSharpSignatureHelp<CR>
    autocmd FileType cs inoremap <buffer> <C-\> <C-o>:OmniSharpSignatureHelp<CR>

    " Navigate up and down by method/property/field
    autocmd FileType cs nnoremap <buffer> <C-k> :OmniSharpNavigateUp<CR>
    autocmd FileType cs nnoremap <buffer> <C-j> :OmniSharpNavigateDown<CR>
augroup END

" Contextual code actions (uses fzf, CtrlP or unite.vim when available)
nnoremap <Leader><Space> :OmniSharpGetCodeActions<CR>
" Run code actions with text selected in visual mode to extract method
xnoremap <Leader><Space> :call OmniSharp#GetCodeActions('visual')<CR>

" Rename with dialog
nnoremap <Leader>nm :OmniSharpRename<CR>
nnoremap <F2> :OmniSharpRename<CR>
" Rename without dialog - with cursor on the symbol to rename: `:Rename newname`
command! -nargs=1 Rename :call OmniSharp#RenameTo("<args>")

nnoremap <Leader>cf :OmniSharpCodeFormat<CR>

" Start the omnisharp server for the current solution
nnoremap <Leader>ss :OmniSharpStartServer<CR>
nnoremap <Leader>sp :OmniSharpStopServer<CR>

" Enable snippet completion
" let g:OmniSharp_want_snippet=1

let g:OmniSharp_selector_ui = ''

" Set Code Actions Available flag
set updatetime=500

sign define OmniSharpCodeActions text=💡

augroup OSCountCodeActions
    autocmd!
    autocmd! FileType cs set signcolumn=yes
    autocmd CursorHold *.cs call OSCountCodeActions()
augroup END

function! OSCountCodeActions() abort
    if OmniSharp#CountCodeActions({-> execute('sign unplace 99')})
        let l = getpos('.')[1]
        let f = expand('%:p')
        execute ':sign place 99 line='.l.' name=OmniSharpCodeActions file='.f
    endif
endfunction