init.vim

syntax on
set number
set ruler               " Show the line and column numbers of the cursor.
set formatoptions+=o    " Continue comment marker in new lines.
set textwidth=0         " Hard-wrap long lines as you type them.
set modeline            " Enable modeline.
set linespace=0         " Set line-spacing to minimum.
set nojoinspaces        " Prevents inserting two spaces after punctuation on a join (J)
" More natural splits
set splitbelow          " Horizontal split below current.
set splitright          " Vertical split to right of current.
if !&scrolloff
  set scrolloff=3       " Show next 3 lines while scrolling.
endif
if !&sidescrolloff
  set sidescrolloff=5   " Show next 5 columns while side-scrolling.
endif
set display+=lastline
set nostartofline       " Do not jump to first character with page commands.
set noerrorbells                " No beeps
set backspace=indent,eol,start  " Makes backspace key more powerful.
set showcmd                     " Show me what I'm typing
set showmode                    " Show current mode.
set noswapfile                  " Don't use swapfile
set nobackup            	" Don't create annoying backup files
set encoding=utf-8              " Set default encoding to UTF-8
set autowrite                   " Automatically save before :next, :make etc.
set autoread                    " Automatically reread changed files without asking me anything
set laststatus=2
set fileformats=unix,dos,mac    " Prefer Unix over Windows over OS 9 formats
set showmatch                   " Do not show matching brackets by flickering
set incsearch                   " Shows the match while typing
set hlsearch                    " Highlight found searches
set ignorecase                  " Search case insensitive...
set smartcase                   " ... but not when search pattern contains upper case characters
set autoindent
set tabstop=4 shiftwidth=4 expandtab
set gdefault            " Use 'g' flag by default with :s/foo/bar/.
set magic               " Use 'magic' patterns (extended regular expressions).

autocmd VimEnter * NERDTree

" Use <C-L> to clear the highlighting of :set hlsearch.
if maparg('<C-L>', 'n') ==# ''
  nnoremap <silent> <C-L> :nohlsearch<CR><C-L>
endif

" Search and Replace
nmap <Leader>s :%s//g<Left><Left>

" Leader key is like a command prefix. 
let mapleader='z'
let maplocalleader='\'

let g:python_host_prog="/usr/local/bin/python2.7"

let g:session_autosave = 'yes'
let g:session_autoload = 'yes'
let g:session_default_to_last = 1

" set cursorcolumn
nmap <Space> <PageDown>
vmap <BS> x

" cd ~/.config/nvim/spell
" wget http://ftp.vim.org/vim/runtime/spell/pt.utf-8.spl
" set spell spelllang=pt_pt
" zg to add word to word list
" zw to reverse
" zug to remove word from word list
" z= to get list of possibilities
" set spellfile=~/.config/nvim/spellfile.add
set nospell

" Plugins here
call plug#begin('~/.config/nvim/plugged')
" Plug 'SirVer/ultisnips' | Plug 'honza/vim-snippets'
" Use release branch (Recommend)
" Plug 'Valloric/YouCompleteMe'
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'
Plug 'Chiel92/vim-autoformat'
Plug 'scrooloose/nerdtree'
Plug 'terryma/vim-multiple-cursors'
Plug 'bling/vim-airline'
" Plug 'Shougo/deoplete.nvim', { 'do': ':UpdateRemotePlugins' }
Plug 'beeender/Comrade'
" Use release branch (Recommend)
Plug 'neoclide/coc.nvim', {'branch': 'release'}
" (Optional) Multi-entry selection UI.
Plug 'junegunn/fzf'
Plug 'epmatsw/ag.vim'
Plug 'jiangmiao/auto-pairs'
let g:AutoPairsMultilineClose = 0
let g:AutoPairsMapSpace = 0
call plug#end()

" UltiSnips config
inoremap <silent><expr><TAB> pumvisible() ? "\<C-n>" : "\<TAB>"
let g:UltiSnipsExpandTrigger="<tab>"
let g:UltiSnipsJumpForwardTrigger="<tab>"
let g:UltiSnipsJumpBackwardTrigger="<s-tab>"

" Tell Vim which characters to show for expanded TABs,
" trailing whitespace, and end-of-lines. VERY useful!
if &listchars ==# 'eol:$'
  " set listchars=tab:>\ ,trail:-,extends:>,precedes:<,nbsp:+
  set listchars=tab:>\ ,extends:>,precedes:<,nbsp:+
endif

" nerdtree config
map <C-n> :NERDTreeToggle<CR>

" airline settings
let g:airline#extensions#tabline#enabled = 2
let g:airline#extensions#tabline#fnamemod = ':t'
let g:airline#extensions#tabline#left_sep = ' '
let g:airline#extensions#tabline#left_alt_sep = '|'
let g:airline#extensions#tabline#right_sep = ' '
let g:airline#extensions#tabline#right_alt_sep = '|'
let g:airline_powerline_fonts=1
let g:airline_left_sep = ' '
let g:airline_left_alt_sep = '|'
let g:airline_right_sep = ' '
let g:airline_right_alt_sep = '|'
let g:airline_powerline_fonts=1
let g:airline_theme='molokai'

" Multicursor
let g:multi_cursor_use_default_mapping=0
let g:multi_cursor_next_key='<C-e>'
let g:multi_cursor_quit_key='<Esc>'
let g:multi_cursor_quit_key='<Esc>'

" YouCompleteMe
let g:ycm_autoclose_preview_window_after_completion = 1
let g:ycm_min_num_of_chars_for_completion = 1

" Other
set mouse=
set list

" Theme
colorscheme onedark
let NERDTreeIgnore = ['_site']

" Buffer handling
nmap L :let &number=1-&number<CR>
nmap <leader>l :bnext<CR>
nmap <c-h> :bprevious<CR>
nmap <leader>bq :bp <BAR> bd #<CR>
nmap <leader>bl :ls<CR>
nmap <leader>0 :set invnumber<CR>
" map :q to byffer delete
" http://stackoverflow.com/questions/7513380/vim-change-x-function-to-delete-buffer-instead-of-save-quit
cnoreabbrev <expr> q getcmdtype() == ":" && (getcmdline() == 'q' && len(filter(range(1, bufnr('$')), 'buflisted(v:val)')) > 1) ? 'bd' : 'q'
inoremap <expr> <C-j> pumvisible() ? "\<C-n>" : "\<C-j>"
inoremap <expr> <C-k> pumvisible() ? "\<C-p>" : "\<C-k>"
nmap <C-n> :NERDTreeToggle<CR>

" For window splits -----------------
" nnoremap <C-J> <C-W><C-J>
nnoremap <C-K> <C-W><C-K>
nnoremap <C-L> <C-W><C-L>
nnoremap <C-H> <C-W><C-H>

set splitbelow
set splitright

" Coc Lanugage Server
" if hidden is not set, TextEdit might fail.
set hidden

" Some servers have issues with backup files, see #649
set nobackup
set nowritebackup

" Better display for messages
set cmdheight=2

" You will have bad experience for diagnostic messages when it's default 4000.
set updatetime=300

" don't give |ins-completion-menu| messages.
set shortmess+=c

" always show signcolumns
set signcolumn=yes

" Use tab for trigger completion with characters ahead and navigate.
" Use command ':verbose imap <tab>' to make sure tab is not mapped by other plugin.
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.
inoremap <silent><expr> <c-space> coc#refresh()

" Use <cr> to confirm completion, `<C-g>u` means break undo chain at current position.
" Coc only does snippet and additional edit on confirm.
inoremap <expr> <cr> pumvisible() ? "\<C-y>" : "\<C-g>u\<CR>"
" Or use `complete_info` if your vim support it, like:
" inoremap <expr> <cr> complete_info()["selected"] != "-1" ? "\<C-y>" : "\<C-g>u\<CR>"

" Use `[g` and `]g` to navigate diagnostics
nmap <silent> [g <Plug>(coc-diagnostic-prev)
nmap <silent> ]g <Plug>(coc-diagnostic-next)

" Remap keys for gotos
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>')
  else
    call CocAction('doHover')
  endif
endfunction

" Highlight symbol under cursor on CursorHold
autocmd CursorHold * silent call CocActionAsync('highlight')

" Remap for rename current word
nmap <leader>rn <Plug>(coc-rename)

" Remap for format selected region
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

" Remap for do codeAction of selected region, ex: `<leader>aap` for current paragraph
xmap <leader>a  <Plug>(coc-codeaction-selected)
nmap <leader>a  <Plug>(coc-codeaction-selected)

" Remap for do codeAction of current line
nmap <leader>ac  <Plug>(coc-codeaction)
" Fix autofix problem of current line
nmap <leader>qf  <Plug>(coc-fix-current)

" Create mappings for function text object, requires document symbols feature of languageserver.
xmap if <Plug>(coc-funcobj-i)
xmap af <Plug>(coc-funcobj-a)
omap if <Plug>(coc-funcobj-i)
omap af <Plug>(coc-funcobj-a)

" Use <C-d> for select selections ranges, needs server support, like: coc-tsserver, coc-python
nmap <silent> <C-d> <Plug>(coc-range-select)
xmap <silent> <C-d> <Plug>(coc-range-select)

" Use `:Format` to format current buffer
command! -nargs=0 Format :call CocAction('format')

" Use `:Fold` to fold current buffer
command! -nargs=? Fold :call     CocAction('fold', <f-args>)

" use `:OR` for organize import of current buffer
command! -nargs=0 OR   :call     CocAction('runCommand', 'editor.action.organizeImport')

" Add status line support, for integration with other plugin, checkout `:h coc-status`
set statusline^=%{coc#status()}%{get(b:,'coc_current_function','')}

" Using CocList
" Show all diagnostics
nnoremap <silent> <space>a  :<C-u>CocList diagnostics<cr>
" Manage extensions
nnoremap <silent> <space>e  :<C-u>CocList extensions<cr>
" Show commands
nnoremap <silent> <space>c  :<C-u>CocList commands<cr>
" Find symbol of current document
nnoremap <silent> <space>o  :<C-u>CocList outline<cr>
" Search workspace symbols
nnoremap <silent> <space>s  :<C-u>CocList -I symbols<cr>
" Do default action for next item.
nnoremap <silent> <space>j  :<C-u>CocNext<CR>
" Do default action for previous item.
nnoremap <silent> <space>k  :<C-u>CocPrev<CR>
" Resume latest coc list
nnoremap <silent> <space>p  :<C-u>CocListResume<CR>

" use <tab> for trigger completion and navigate to the next complete item
function! s:check_back_space() abort
  let col = col('.') - 1
  return !col || getline('.')[col - 1]  =~ '\s'
endfunction