syntax on

set noerrorbells
set tabstop=4 softtabstop=4
set shiftwidth=4
set expandtab
set smartindent
set number
set relativenumber
set smartcase
set ignorecase
set noswapfile
set nobackup
set undodir=~/.vim/undodir
set undofile
set incsearch
set hidden
set colorcolumn=80
set scrolloff=12
set signcolumn=yes
set clipboard=unnamedplus
set nocompatible
filetype plugin on

highlight ColorColumn ctermbg=0 guibg=lightgrey

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

Plug 'morhetz/gruvbox'
Plug 'Xuyuanp/nerdtree-git-plugin'
Plug 'neoclide/coc.nvim', {'branch': 'release'}
Plug 'preservim/nerdtree'
Plug 'tiagofumo/vim-nerdtree-syntax-highlight'
Plug 'ryanoasis/vim-devicons'
Plug 'airblade/vim-gitgutter'
Plug 'vim-utils/vim-man'
Plug 'tpope/vim-fugitive'
Plug 'kien/ctrlp.vim'
Plug 'mbbill/undotree'
Plug 'sainnhe/gruvbox-material'
Plug 'xuhdev/vim-latex-live-preview'
" Plug 'lervag/vimtex'
Plug 'nvim-lua/popup.nvim'
Plug 'nvim-lua/plenary.nvim'
Plug 'nvim-telescope/telescope.nvim'
Plug 'godlygeek/tabular'
Plug 'preservim/vim-markdown'
Plug 'iamcco/markdown-preview.nvim', { 'do': 'cd app && yarn install' }
Plug 'preservim/vim-pencil'
Plug 'justinmk/vim-sneak'
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'
call plug#end()

colorscheme gruvbox-material
set background=dark
"highlight Normal ctermbg=None

if executable('rg')
    let g:rg_derive_root='true'
endif

let g:ctrlp_user_command = ['.git/','git --git-dir=%s/.git ls-files -oc --exclude-standard']
let mapleader = " "
let g:netrw_browse_split=2
let g:netrw_banner = 0
let g:ctrlp_use_caching = 0
let g:getrw_winsize = 25
let g:gruvbox_transparent_bg = 1
let g:sneak#label = 1
let g:airline_theme='gruvbox_material'
let g:vim_markdown_folding_disabled = 1
let g:vimtex_view_method = 'zathura'
let g:livepreview_previewer = 'zathura'
let g:vimtex_compiler_method = 'latexrun'
let NERDTreeShowHidden=1

"coc stuff 
set encoding=UTF-8
set cmdheight=2
set updatetime=300
set shortmess+=c
" Always show the signcolumn, otherwise it would shift the text each time
" diagnostics appear/become resolved.
if has("nvim-0.5.0") || 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.
if has('nvim')
  inoremap <silent><expr> <c-space> coc#refresh()
else
  inoremap <silent><expr> <c-@> coc#refresh()
endif

" Make <CR> auto-select the first completion item and notify coc.nvim to
" format on enter, <cr> could be remapped by other vim plugin
inoremap <silent><expr> <cr> pumvisible() ? coc#_select_confirm()
                              \: "\<C-g>u\<CR>\<c-r>=coc#on_enter()\<CR>"

" 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 <SID>show_documentation()<CR>

function! s:show_documentation()
  if (index(['vim','help'], &filetype) >= 0)
    execute 'h '.expand('<cword>')
  elseif (coc#rpc#ready())
    call CocActionAsync('doHover')
  else
    execute '!' . &keywordprg . " " . expand('<cword>')
  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 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 keys for applying codeAction to the current buffer.
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)

" Remap <C-f> and <C-b> for 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 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 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 stuff end
nnoremap <leader>h : wincmd h<CR>
nnoremap <leader>j : wincmd j<CR>
nnoremap <leader>k : wincmd k<CR>
nnoremap <leader>l : wincmd l<CR>
nnoremap <leader>u : UndotreeShow<CR>
nnoremap <leader>pv : wincmd v<bar> : Ex <bar> : vertical resize 30<CR>
nnoremap <Leader>ps : Rg<space>
nnoremap <silent> <Leader>+ : vertical resize +5<CR>
nnoremap <silent> <Leader>- : vertical resize -5<CR>
"nnoremap <silent> <Leader>gd : YcmCompleter GoTo<CR>
"nnoremap <silent> <Leader>gf : YcmCompleter FixIt<CR>

nmap <C-n> :NERDTreeToggle<CR>
let g:NERDTreeGitStatusWithFlags = 1
let g:NERDTreeIgnore = ['^node_modules$']
"autocmd VimEnter * NERDTree 

nnoremap <leader>ff <cmd>Telescope find_files hidden=true<cr>
nnoremap <leader>fg <cmd>Telescope live_grep<cr>
nnoremap <leader>fb <cmd>Telescope buffers<cr>
nnoremap <leader>fh <cmd>Telescope help_tags<cr>

"fun! TrimWhitespace()
"    let l:save = winsaveview()
"    keeppatterns %s/\s\+$//e
"    call winrestview(l:save)
"endfun

" augroup THE_PRIMEAGEN
" autocmd!
" " autocmd BufWritePre * :call TrimWhitespace()
" autocmd BufWritePost *.cpp !astyle %
" autocmd BufWritePost *.cpp edit
" autocmd BufWritePost *.cpp redraw!
" augroup END
"
" =================================================
" pencil 
" =================================================
"
let g:pencil#wrapModeDefault = 'soft'
augroup pencil
  autocmd!
  autocmd FileType markdown,mkd call pencil#init()
  autocmd FileType text         call pencil#init()
augroup END