vimrc

" execute pathogen#infect()

" PLUGINS ---------------------------------------------------------------- {{{
call plug#begin('~/.vim/plugged')

    " To add a new plug. paste the github path as argument of "Plug"
    " :source ~/.vimrc " to make the changes take effect
    " :PlugInstall " to launch installation

    Plug 'rakr/vim-one', {'dir': '~/.vim/colors/vim-one'}

    Plug 'dense-analysis/ale'
    Plug 'preservim/nerdtree'
    Plug 'vim-airline/vim-airline'
    Plug 'sheerun/vim-polyglot'
		" Comment stuff out.  Use `gcc` to comment out a line (takes a count),
		" `gc` to comment out the target of a motion (for example, `gcap` to
		" comment out a paragraph), `gc` in visual mode to comment out the selection,
		" and `gc` in operator pending mode to target a comment.  You can also use
		" it as a command, either with a range like `:7,17Commentary`, or as part of a
		" `:global` invocation like with `:g/TODO/Commentary`. That's it.
    Plug 'tpope/vim-commentary'
    Plug 'tpope/vim-surround'
    Plug 'neoclide/coc.nvim', {'branch': 'release'}
    Plug 'junegunn/fzf.vim'


call plug#end()

" Start interactive in visual mode
if exists(":Tabularize")
  vmap <Enter> :Tabularize /
endif

" Have nerdtree ignore certain files and directories.
let NERDTreeIgnore=['\.git$', '\.jpg$', '\.mp4$', '\.ogg$', '\.iso$', '\.pdf$', '\.pyc$', '\.odt$', '\.png$', '\.gif$', '\.db$']

"silent! colorscheme one
colorscheme one
set background=dark
let g:airline_theme='one'

" }}}

" COC.NVIM --------------------------------------------------------------- {{{

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

" 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> [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')

" 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>

" }}}

" VIMSCRIPT --------------------------------------------------------------- {{{

" let g:lightline = {
"       \ 'colorscheme': 'wombat',
"       \ 'active': {
"       \   'left': [ [ 'mode', 'paste' ],
"       \             [ 'gitbranch', 'readonly', 'filename', 'modified' ] ]
"       \ },
"       \ 'component_function': {
"       \   'gitbranch': 'fugitive#head'
"       \ },
"     \ }

" This will enable code folding.
" Use the marker method of folding.
augroup filetype_vim
    autocmd!
    autocmd FileType vim setlocal foldmethod=marker
augroup END

" If the current file type is HTML, set indentation to 2 spaces.
autocmd Filetype html setlocal tabstop=2 shiftwidth=2 expandtab

" If Vim version is equal to or greater than 7.3 enable undofile.
" This allows you to undo changes to a file even after saving it.
if version >= 703
    set undodir=~/.vim/backup
    set undofile
    set undoreload=10000
endif

" You can split a window into sections by typing `:split` or `:vsplit`.
" Display cursorline and cursorcolumn ONLY in active window.
augroup cursor_off
    autocmd!
    autocmd WinLeave * set nocursorline " nocursorcolumn
    autocmd WinEnter * set cursorline " cursorcolumn
augroup END

"Use 24-bit (true-color) mode in Vim/Neovim when outside tmux.
"If you're using tmux version 2.2 or later, you can remove the outermost $TMUX check and use tmux's 24-bit color support
"(see < http://sunaku.github.io/tmux-24bit-color.html#usage > for more information.)
if (empty($TMUX))
  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 >
  if (has("termguicolors"))
    set termguicolors
  endif
endif


" }}}

" CONFIGURATION --------------------------------------------------------------- {{{

" Turn syntax highlighting on.
syntax on
" Enable type file detection. Vim will be able to try to detect the type of file in use.
filetype on
" Enable plugins and load plugin for the detected file type.
" Load an indent file for the detected file type.
filetype plugin indent on
set nocompatible " Disable compatibility with vi which can cause unexpected issues.

" Highlight cursor line underneath the cursor horizontally.
set cursorline
" Highlight cursor line underneath the cursor vertically.
" set cursorcolumn

" Encoding
set encoding=utf-8
set fileencoding=utf-8
set termencoding=utf-8

" Indentation
"set expandtab       "Tabs to spaces
set noexpandtab     "Use tabs as tabs (and not spaces)
set smarttab
set shiftwidth=4
set softtabstop=4
set linebreak
set autoindent
set listchars=tab:▷▷⋮  "list tabs as ▷▷⋮ in list mode

" Better indent
vmap > >gv
vmap < <gv


" Search
set ignorecase      " Ignore case of searches
set smartcase       " Search with case only if needed (searching with capital letters)
set hlsearch        " Highlight search while typing
"  While searching though a file incrementally highlight matching characters as you type.
set incsearch       " Move cursor while typing
set showmatch       " Show matching words/brackets during a search.
" Press enter after search to clean highlighting
noremap <cr> :noh<CR><CR>:<backspace>

" Wildmenu
" Bash completion ~= wildmenu in vim
set wildmenu                " Enable auto completion menu after pressing TAB.
set wildmode=list:longest   " Make wildmenu behave like similar to Bash completion.
" There are certain files that we would never want to edit with Vim.
" Wildmenu will ignore files with these extensions.
set wildignore=*.docx,*.jpg,*.png,*.gif,*.pdf,*.pyc,*.exe,*.flv,*.img,*.xlsx

" Misc
" set viminfo="NONE"
"set noswapfile                 " No swap files
"set nobackup                   " No trying to delete old backups
"set nowritebackup              " No backups before overwriting file
" set showcmd                     " Show partial command you type in the last line of the screen.
set noerrorbells visualbell t_vb=
set history=1000                " Set the commands to save in history default number is 20.
set laststatus=2		" Ensures the status line is present

" Don't show the mode you are on the last line (vim airline will do it)
set noshowmode
set nu " Add numbers to each line on the left-hand side.

" REMAPS ---------------------------------

" In insert mode, remap jj to esc to escape insert mode more easily
inoremap jj <esc>
" Press the space bar to type the : character in command mode.
nnoremap <space> :

" Move cursor more easily
" Press ctrl+i/j/k/l to move up/left/down/right
nnoremap <c-i> k
nnoremap <c-j> h
nnoremap <c-k> j
nnoremap <c-l> l

" You can split the window in Vim by typing :split or :vsplit.
" Navigate the split view easier by pressing ctrl+shift+i, ctrl+jshift+,
" ctrl+shift+k, or ctrl+shift+l.
" Tip: ctrl+ww to change window
" nnoremap <c-w><c-i> <c-w>k
nnoremap <c-w>i <c-w>k
nnoremap <c-w>j <c-w>h
nnoremap <c-w>k <c-w>j
nnoremap <c-w>l <c-w>l

" Resize split windows using arrow keys by pressing:
" CTRL+UP, CTRL+DOWN, CTRL+LEFT, or CTRL+RIGHT.
noremap <c-up> <c-w>+
noremap <c-down> <c-w>-
noremap <c-left> <c-w>>
noremap <c-right> <c-w><

" NERDTree specific mappings.
" Map the F3 key to toggle NERDTree open and close.
nnoremap <F3> :NERDTreeToggle<cr>

" Better clipboard
noremap <Leader>y "*y
noremap <Leader>p "*p
noremap <Leader>Y "+y
noremap <Leader>P "+p
set clipboard^=unnamedplus
:inoremap <C-v> <ESC>"+pa
:vnoremap <C-c> "+y
:vnoremap <C-d> "+d

" }}}

" COMMANDS --------------------------------------------------------------- {{{

"
" Sample command W
"
command W :execute ':silent w !sudo tee % > /dev/null' | :edit!
command Wq :execute ':silent w !sudo tee % > /dev/null' | :quit!
command WQ :execute ':silent w !sudo tee % > /dev/null' | :quit!
command RRSC :w | :source ~/.vimrc

" }}}