vimrc

set nocompatible
set cursorline
syntax enable
set expandtab
set tabstop=4
set smartindent
set autoread
inoremap jj <ESC>
set nu
set incsearch
set updatetime=300
set showcmd
set foldmethod=syntax
set signcolumn=yes
set nohlsearch

set sw=4
set ts=4

set backspace=indent,eol,start

autocmd FileType make setlocal noexpandtab
autocmd FileType kconfig setlocal noexpandtab
autocmd FileType c setlocal noexpandtab tabstop=8 shiftwidth=8
autocmd FileType kconfig setlocal noexpandtab tabstop=8 shiftwidth=8
autocmd BufRead,BufNewFile *.h,*.c set filetype=c
autocmd FileType gitcommit setlocal spell tw=75

set wildoptions=fuzzy,pum
set wildchar=<Tab> wildmenu wildmode=full

set formatoptions+=mM

""
"For Emacs-style editing on the command-line: >
""

" start of line
cnoremap <C-A>		<Home>
" back one character
cnoremap <C-B>		<Left>
" delete character under cursor
cnoremap <C-D>		<Del>
" end of line
cnoremap <C-E>		<End>
" forward one character
" (Use vim normal mode instead)
" cnoremap <C-F>		<Right> 
" recall newer command-line
cnoremap <C-N>		<Down>
" recall previous (older) command-line
cnoremap <C-P>		<Up>
" back one word
cnoremap <Esc><C-B>	<S-Left>
" forward one word
cnoremap <Esc><C-F>	<S-Right>


" Netrw
let g:netrw_banner = 0
let g:netrw_liststyle = 3

" Allow saving of files as sudo when I forgot to start vim using sudo.
" https://stackoverflow.com/a/7078429
cmap w!! w !sudo tee > /dev/null %

" Disable ALE, YouCompleteMe and GitGutter to try out some LSP plugins
let g:loaded_ale_dont_use_this_in_other_plugins_please = 1
let g:loaded_youcompleteme = 1
let g:loaded_gitgutter = 1
let g:ale_disable_lsp = 1



" coc

function! s:coc_static_highlight_fix() abort
  hi CocSelectedText  ctermfg=Red     guifg=#fb4934 guibg=NONE
  hi CocCodeLens      ctermfg=Gray    guifg=#999999 guibg=NONE
  hi CocUnderline     term=underline cterm=underline gui=underline guisp=#ebdbb2
  hi CocBold          term=bold cterm=bold gui=bold
  hi CocItalic        term=italic cterm=italic gui=italic
  hi CocStrikeThrough term=strikethrough cterm=strikethrough gui=strikethrough
  hi CocMarkdownLink  ctermfg=Blue    guifg=#15aabf guibg=NONE
  hi CocDisabled      guifg=#999999   ctermfg=gray
  hi CocSearch        ctermfg=Blue    guifg=#15aabf guibg=NONE
  hi CocLink          term=underline cterm=underline gui=underline guisp=#15aabf
  hi link CocFloatActive         CocSearch
  hi link CocFadeOut             Conceal
  hi link CocMarkdownCode        markdownCode
  hi link CocMarkdownHeader      markdownH1
  hi link CocDeprecatedHighlight CocStrikeThrough
  hi link CocUnusedHighlight     CocFadeOut
  hi link CocListSearch          CocSearch
  hi link CocListMode            ModeMsg
  hi link CocListPath            Comment
  hi link CocHighlightText       CursorColumn
  hi link CocHoverRange          Search
  hi link CocCursorRange         Search
  hi link CocLinkedEditing       CocCursorRange
  hi link CocHighlightRead       CocHighlightText
  hi link CocHighlightWrite      CocHighlightText
  " Notification
  hi CocNotificationProgress  ctermfg=Blue    guifg=#15aabf guibg=NONE
  hi link CocNotificationButton  CocUnderline
  hi link CocNotificationError   CocErrorFloat
  hi link CocNotificationWarning CocWarningFloat
  hi link CocNotificationInfo    CocInfoFloat
  " Snippet
  hi link CocSnippetVisual       Visual
  " Tree view highlights
  hi link CocTreeTitle       Title
  hi link CocTreeDescription Comment
  hi link CocTreeOpenClose   CocBold
  hi link CocTreeSelected    CursorLine
  hi link CocSelectedRange   CocHighlightText
  " Symbol highlights
  hi link CocSymbolDefault       MoreMsg
  "Pum
  hi link CocPumSearch           CocSearch
  hi link CocPumDetail           Comment
  hi link CocPumMenu             CocFloating
  hi link CocPumShortcut         Comment
  hi link CocPumDeprecated       CocStrikeThrough
  hi CocVirtualText             ctermfg=12 guifg=#504945
  hi link CocPumVirtualText        CocVirtualText
  hi link CocInputBoxVirtualText   CocVirtualText
  hi link CocFloatDividingLine     CocVirtualText
endfunction

augroup MyColors
    autocmd!
    autocmd ColorScheme * call s:coc_static_highlight_fix()
augroup END

packadd coc.nvim


function! CheckBackspace() abort
  let col = col('.') - 1
  return !col || getline('.')[col - 1]  =~# '\s'
endfunction

inoremap <silent><expr> <tab> coc#pum#visible() ? coc#pum#confirm() : "\<tab>"

" 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> [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 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')
  " Update signature help on jump placeholder
  autocmd User CocJumpPlaceholder call CocActionAsync('showSignatureHelp')
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')

" 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>

" coc end

let g:ale_linters = {'verilog' : ['verilator'],
\ 'haskell' : ['hls'], 'rust': ['analyzer'],
\ 'systemverilog' : ['verilator']}
let g:ale_haskell_hls_executable = '/usr/bin/haskell-language-server'
let g:ale_linter_aliases = {"PKGBUILD": ['sh']}
""
" Verilog
""
let g:formatdef_istyle = '"iStyle"'

let g:formatdef_verible = '"verible-verilog-format --column_limit=80 --indentation_spaces=4 -"'
let g:formatters_systemverilog = ['verible']
let g:formatters_verilog = ['istyle']

""
" C
""
let g:ale_c_clangtidy_checks = ['*', '-altera*', '-llvmlibc*']

""
"Python
""
let g:formatdef_black_custom = '"black --line-length 79 -q ".(&textwidth ? "-l".&textwidth : "")." -"'
let g:formatters_python = ['black_custom']

""
" PKGBUILD (pacman-contrib)
""
let g:formatters_PKGBUILD = ['shfmt']

""
" Themes and plugins 
""
let g:vimwiki_list = [{'path': '~/docs/vimwiki',
\ 'path_html': '~/docs/vimwiki_html',
\ 'auto_toc': 1,
\ 'auto_diary_index': 1,
\ 'auto_generate_links': 1,
\ 'auto_generate_tags': 1,
\ 'template_path': '~/.vimwiki/',
\ 'template_ext': '.html'}]

let g:vimwiki_auto_header = 1
let g:vimwiki_toc_header_level = 2

let g:ycm_autoclose_preview_window_after_insertion = 1
let g:ycm_autoclose_preview_window_after_completion = 1

set termguicolors

set background=dark
let g:palenight_terminal_italics=1
let g:palenight_color_overrides = {'white': { 'gui' : '#FFFFFF', "cterm":"15", "cterm16": "7" }}

function DarkTheme()
    let g:airline_theme = "palenight"
    colorscheme palenight
endfunction

function LightTheme()
    let g:airline_theme = "papercolor"
    colorscheme PaperColor
endfunction

au User LumenLight nested call LightTheme()
au User LumenDark nested call DarkTheme()

if (has("nvim"))
"For Neovim 0.1.3 and 0.1.4 < https://github.com/neovim/neovim/pull/2198 >
  let $NVIM_TUI_ENABLE_TRUE_COLOR=1
endif

"For Neovim > 0.1.5 and Vim > patch 7.4.1799 < https://github.com/vim/vim/commit/61be73bb0f965a895bfb064ea3e55476ac175162 >
"Based on Vim patch 7.4.1770 (`guicolors` option) < https://github.com/vim/vim/commit/8a633e3427b47286869aa4b96f2bfc1fe65b25cd >
" < https://github.com/neovim/neovim/wiki/Following-HEAD#20160511 >

" Disable wakatime by default
if $wakatime_enable
    autocmd VimEnter * echo "Wakatime enabled."
else
    let g:loaded_wakatime = 1
endif

" Autoformat
noremap <leader>f :Autoformat<CR>

" fzf
noremap <leader><space>f :Files<CR>
noremap <leader><space>b :Buffers<CR>
noremap <leader><space>w :Windows<CR>

" UltiSnips
let g:UltiSnipsExpandTrigger="<c-s>"
let g:UltiSnipsJumpForwardTrigger="<c-b>"
let g:UltiSnipsJumpBackwardTrigger="<c-z>"

let g:UltiSnipsSnippetDirectories=['mysnippet']

" mouse
noremap <leader>m :set mouse=a<CR>

" zoom.vim
let g:zoom#statustext="zoom"
call airline#parts#define_function('zoom', 'zoom#statusline')
let g:airline_section_b = airline#section#create_left(['hunks', 'branch', 'zoom'])
hi default CocUnderline    cterm=underline gui=underline