.vimrc

call plug#begin('~/.vim/plugged')

Plug 'scrooloose/nerdtree'
Plug 'vim-scripts/taglist.vim'
Plug 'joe-skb7/cscope-maps'
Plug 'neoclide/coc.nvim', { 'branch': 'release' }
Plug 'dense-analysis/ale'
Plug 'ggml-org/llama.vim', { 'for': ['c', 'cpp', 'h', 'hpp', 'python', 'javascript', 'typescript', 'rust', 'go', 'lua', 'json'] }

call plug#end()

let g:llama_config = {
  \ 'keymap_fim_trigger': '<C-g>',
  \ 'keymap_fim_accept_full': '<C-a>',
  \ 'keymap_fim_accept_line': '<C-d>',
  \ 'endpoint_fim':  'http://192.168.2.166:8000/infill',
  \ 'endpoint_inst': 'http://192.168.2.166:8000/v1/chat/completions',
  \ }
let g:llama_config.model_fim = 'qwen25-coder'
"let g:llama_config.model_fim = 'qwen35-nt'
let g:llama_config.auto_fim = v:false
"Map Ctrl+G to trigger llama suggestion
autocmd VimEnter * inoremap <C-g> <cmd>call llama#suggest()<CR>

" NERDTree related

nnoremap <C-n> :NERDTreeToggle<CR>
autocmd bufenter * if (winnr("$") == 1 && exists("b:NERDTree") && b:NERDTree.isTabTree()) | q | endif

autocmd StdinReadPre * let s:std_in=1
autocmd VimEnter * if argc() == 0 && !exists("s:std_in") | NERDTree | endif

" YouCompleteMe
let g:ycm_auto_trigger = 1   

syn on " Syntax highlighting on
if has("unix")
    colorscheme desert
endif

"filetype plugin on
"filetype indent on
filetype plugin indent on
autocmd FileType markdown setlocal nocindent
autocmd FileType markdown let g:ollama_enabled = 0
autocmd FileType markdown CocDisable
autocmd FileType text setlocal nocindent
autocmd FileType latex setlocal nocindent
autocmd FileType asciidoc setlocal nocindent noautoindent nosmartindent
autocmd FileType asciidoc setlocal fo=want 
" autocmd FileType asciidoc hi clear ExtraWhitespace

augroup override_ft
  au!
  au BufRead,BufNewFile *.c.inc  set filetype=c
augroup END

if version >= 700
  set omnifunc=syntaxcomplete#Complete
  set completeopt=menuone,menu,longest
  let g:SuperTabDefaultCompletionType = "<C-X><C-O>"
  highlight   clear
  highlight   Pmenu         ctermfg=0 ctermbg=2
  highlight   PmenuSel      ctermfg=0 ctermbg=7
  highlight   PmenuSbar     ctermfg=7 ctermbg=0
  highlight   PmenuThumb    ctermfg=0 ctermbg=7
end

if has("gui_running")
  if has("macunix")
    set guifont=Monaco:h14 " use this font
    set lines=70 " height = 50 lines
    set columns=90 " width = 100 columns
  elseif has("unix")
    set guifont=Lucida\ Console:h10 " use this font
    set lines=70 " height = 50 lines
    set columns=90 " width = 100 columns
  endif
endif
set tw=90
set mouse=a

" Tab and indent options =======================================================
set number
set relativenumber
set tabstop=4 " Tab is 4 spaces and NOT the default 8
set shiftwidth=4 " numbers of spaces to (auto)indent
set expandtab " Expand tab to spaces
set cindent " cindent
set smartindent " smart indent
set autoindent " always set autoindenting on
set softtabstop=4 " makes the spaces feel like real tabs. E.g. back deletes all 4 chars
set backspace=indent,eol,start " backspace deletes indent, eol and start lineset hlsearch
set cinoptions=l1
nnoremap H gT
nnoremap L gt
set fo+=mM
" Display options ===============================================================
set cursorline
" hi CursorLine cterm=NONE ctermbg=black guibg=black
set ruler
if exists('+autochdir')
    set autochdir
else
    autocmd BufEnter * silent! lcd %:p:h:gs/ /\ /
endif
set langmenu=none
highlight ExtraWhitespace ctermbg=darkgreen guibg=darkgreen
match ExtraWhitespace /\s\+$/
" Tags related ==================================================================
"let Tlist_Ctags_Cmd = "ctags.exe"
set tags=./tags,tags
set tags+=~/.vim/tags/c
"set tags+=~/.vim/tags/c++
set grepprg=grep\ -nH\ $*

let g:ale_linters = {'rust': ['analyzer']}
let g:ale_linters_explicit = 1
augroup filetype_rust
    if tagfiles() == []
        au!
        au BufRead,BufNewFile *.rs nnoremap K :ALEHover<CR>
        au BufRead,BufNewFile *.rs nnoremap <C-]> :ALEGoToDefinition<CR>
    endif
augroup END


let g:tex_flavor = "pdftex"
let g:Tex_DefaultTargetFormat = "pdf"
let g:Tex_MultipleCompileFormats="pdf,bib,pdf"
let g:Tex_GotoError = 0
let g:Tex_ShowErrorContext = 0
let g:tex_comment_nospell = 1

if has("macunix")
    let g:Tex_TreatMacViewersAsUNIX = 1
    let g:Tex_ExecuteUNIXViewerInForeground = 1
    let g:Tex_ViewRule_ps = 'open -a Skim'
    let g:Tex_ViewRule_pdf = 'open -a /Applications/Skim.app'
    let g:Tex_ViewRule_dvi = 'open -a /Applications/Skim.app'
elseif has("unix")
    let g:Tex_ViewRule_pdf = "okular"
endif
autocmd FileType php set omnifunc=phpcomplete#CompletePHP
let php_sql_query = 1
let php_htmlInStrings = 1
" File operations ===============================================================
set hidden
set confirm
set nobackup
set hidden
" Search options ================================================================
set incsearch
set hlsearch
" Keymaps =======================================================================
nnoremap <c-l> <c-l>:noh<return>
nnoremap <F12> :TlistToggle<return>
"inoremap ( ()i
"inoremap " ""i
"inoremap ¡® "i
"inoremap [ []i
"inoremap { {}i
" for php:
"imap vv $
"imap .. ->
" Autocmd for different behavior based on filetype==============================
autocmd FileType tex set spell nocindent nosmartindent noautoindent nocursorline tw=90
" Disable logging of the JS indent plugin
let g:js_indent_log = 0

function! LoadCscope()
  let db = findfile("cscope.out", ".;")
  if (!empty(db))
    let path = strpart(db, 0, match(db, "/cscope.out$"))
    set nocscopeverbose             " suppress 'duplicate connection' error
    exe "cs add " . db . " " . path
    set cscopeverbose
    set cscopetag
    set cst
    set csto=0
  endif
endfunction
au BufEnter /* call LoadCscope()

function! UpdateTags()
  execute ":!ctags -R --languages=C,C++ --c++-kinds=+p --fields=+iaS --extra=+q ./"
  echohl StatusLine | echo "C/C++ tag updated" | echohl None
endfunction
nnoremap <F4> :call UpdateTags()
set csre

" Aligns backslash characters at the end of lines.
" Useful when writing multiline macros or multiline strings.
function AlignBackslash()
   :silent! s@\s\+\\$@ \\@
   :silent! s/s*\\$/\=repeat(' ', 80-col('.')).'\'
   :let @/ = ""
endfunction

function RemoveDuplicateBackslash()
   :silent! s/\\\\$/\\/g
endfunction

" In normal mode align the whole file.
nmap \\ mxggVG:call RemoveDuplicateBackslash()<cr>ggVG:call AlignBackslash()<cr>'x

" In visual select mode align selected lines.
vmap \\ :call RemoveDuplicateBackslash()<cr>gv:call AlignBackslash()<cr>

" Insert backslash at the end of current line and align it
nmap <c-\> A\<esc>:call AlignBackslash()<cr>

" Insert backslash at the end of selected lines and align them
vmap <c-\> :norm A\<esc>gv:call AlignBackslash()<cr>


" When opening any C/C++ file under ~/code, add its project's include dir
autocmd BufRead,BufNewFile *.c,*.h,*.cpp,*.hpp call s:SetProjectPath()

function! s:SetProjectPath() abort
  " Get directory of current file and its parent (project root)
  let l:dir = expand('%:p:h')
  let l:root = fnamemodify(l:dir, ':h')
  " Assume include directory is at <root>/include
  let l:inc = l:root . '/include'
  if isdirectory(l:inc)
    execute 'setlocal path+=' . fnameescape(l:inc)
  endif
endfunction

set nowritebackup

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

" Always show the signcolumn, otherwise it would shift the text each time
" diagnostics appear/become resolved
set signcolumn=yes

" Use tab for trigger completion with characters ahead and navigate
" NOTE: There's always complete item selected by default, you may want to enable
" no select by `"suggest.noselect": true` in your configuration file
" 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>
      \ coc#pum#visible() ? coc#pum#next(1) :
      \ CheckBackspace() ? "\<Tab>" :
      \ coc#refresh()
inoremap <expr><S-TAB> coc#pum#visible() ? coc#pum#prev(1) : "\<C-h>"

" Make <CR> to accept selected completion item or notify coc.nvim to format
" <C-g>u breaks current undo, please make your own choice
inoremap <silent><expr> <CR> coc#pum#visible() ? coc#pum#confirm()
                              \: "\<C-g>u\<CR>\<c-r>=coc#on_enter()\<CR>"

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

" GoTo code navigation
nmap <silent><nowait> gd <Plug>(coc-definition)
nmap <silent><nowait> gy <Plug>(coc-type-definition)
nmap <silent><nowait> gi <Plug>(coc-implementation)
nmap <silent><nowait> gr <Plug>(coc-references)

" Use K to show documentation in preview window
nnoremap <silent> K :call ShowDocumentation()<CR>

function! ShowDocumentation()
  if CocAction('hasProvider', 'hover')
    call CocActionAsync('doHover')
  else
    call feedkeys('K', 'in')
  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')
augroup end

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

" Remap keys for applying code actions at the cursor position
nmap <leader>ac  <Plug>(coc-codeaction-cursor)
" Remap keys for apply code actions affect whole buffer
nmap <leader>as  <Plug>(coc-codeaction-source)
" Apply the most preferred quickfix action to fix diagnostic on the current line
nmap <leader>qf  <Plug>(coc-fix-current)

" Remap keys for applying refactor code actions
" nmap <silent> <leader>re <Plug>(coc-codeaction-refactor)
" xmap <silent> <leader>r  <Plug>(coc-codeaction-refactor-selected)
" nmap <silent> <leader>r  <Plug>(coc-codeaction-refactor-selected)

" Run the Code Lens action on the current line
nmap <leader>cl  <Plug>(coc-codelens-action)

" 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> to 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 CocActionAsync('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     CocActionAsync('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>