init.vim

" are we on a mac?
if has("unix")
  let s:uname = system("uname")
  if s:uname == "Darwin\n"
    let isMac = 1
  else
    let isMac = 0
  endif
endif

filetype off
" Get rid of vi compat crap
if &compatible
  set nocompatible
endif

set background=dark
set t_ut=
" set termguicolors

if exists('$TMUX')
  " Colors in tmux
  let &t_8f = "<Esc>[38;2;%lu;%lu;%lum"
  let &t_8b = "<Esc>[48;2;%lu;%lu;%lum"
endif
" use the terminal bg for ALL colorschemes
autocmd ColorScheme * highlight! Normal ctermbg=NONE guibg=NONE


" set rtp+=/usr/local/opt/go/misc/vim
call plug#begin('~/.vim/plugged')

"Linters and autocomplete
" if has('nvim')
"   Plug 'Shougo/deoplete.nvim', { 'do': ':UpdateRemotePlugins' }
" else
"   Plug 'Shougo/deoplete.nvim'
"   Plug 'roxma/nvim-yarp'
"   Plug 'roxma/vim-hug-neovim-rpc'
" endif

" COC
Plug 'neoclide/coc.nvim', {'branch': 'release'}
" Use K to show documentation in preview window.
nnoremap <silent> K :call <SID>show_documentation()<CR>
" 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.

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

" Symbol renaming.
nmap <leader>rn <Plug>(coc-rename)

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

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)

" Always show the signcolumn, otherwise it would shift the text each time
" " diagnostics appear/become resolved.
if has("patch-8.1.1564")
  " Recently vim can merge signcolumn and number column into one
  set signcolumn=number
else
  set signcolumn=yes
endif

set completeopt-=menu,preview
Plug 'w0rp/ale'
let g:ale_fixers = {
      \   '*': ['remove_trailing_lines', 'trim_whitespace'],
      \   'javascript': ['eslint'],
      \   'ruby': ['rubocop'],
      \}
let g:ale_ruby_rubocop_executable = 'bundle'
let g:ale_fix_on_save = 1
let g:ale_sign_error = '❌'
let g:ale_sign_warning = '⚠️'
let g:ale_pattern_options = {'medipack': {'ale_fixers':
\    {
\      '*': ['remove_trailing_lines', 'trim_whitespace'],
\      'javascript': ['prettier'],
\    }
\  }
\}

" Language Support
Plug 'slim-template/vim-slim'
Plug 'StanAngeloff/php.vim'
Plug 'cespare/vim-toml'
Plug 'mxw/vim-jsx'
Plug 'dag/vim-fish'
Plug 'maxmellon/vim-jsx-pretty'
Plug 'othree/yajs.vim'
Plug 'isRuslan/vim-es6'
Plug 'ekalinin/Dockerfile.vim'
Plug 'rust-lang/rust.vim'
Plug 'mattn/emmet-vim'
Plug 'tpope/vim-haml'
Plug 'posva/vim-vue'
Plug 'fatih/vim-go', { 'do': ':GoUpdateBinaries' }
Plug 'elixir-lang/vim-elixir'

" Plug 'autozimu/LanguageClient-neovim', {
" \ 'branch': 'next',
" \ 'do': 'bash install.sh',
" \ }

" let g:LanguageClient_serverCommands = {
" \ 'javascript': ['javascript-typescript-stdio'],
" \ 'javascript.jsx': ['javascript-typescript-stdio']
" \ }
" nnoremap <leader>l :call LanguageClient_contextMenu()<CR>
" nnoremap K :call LanguageClient#textDocument_hover()<CR>
" nnoremap gd :call LanguageClient#textDocument_definition()<CR>
" nnoremap <leader>r :call LanguageClient#textDocument_rename()<CR>

" Colorthemes
Plug 'arcticicestudio/nord-vim'
Plug 'dracula/vim'
Plug 'junegunn/seoul256.vim'
Plug 'fxn/vim-monochrome'
Plug 'whatyouhide/vim-gotham'
Plug 'joshdick/onedark.vim'

" Telescope
Plug 'nvim-lua/popup.nvim'
Plug 'nvim-lua/plenary.nvim'
Plug 'nvim-telescope/telescope.nvim'

" Find files using Telescope command-line sugar.
nnoremap <leader>ff <cmd>Telescope find_files<cr>
nnoremap <leader>fg <cmd>Telescope live_grep<cr>
nnoremap <leader>fb <cmd>Telescope buffers<cr>
nnoremap <leader>fh <cmd>Telescope help_tags<cr>


" Tmux
Plug 'tmux-plugins/vim-tmux-focus-events'
Plug 'roxma/vim-tmux-clipboard'
set clipboard=unnamedplus
"Plug 'christoomey/vim-tmux-navigator'

" Utility
Plug 'airblade/vim-rooter'
Plug 'junegunn/fzf', { 'dir': '~/.fzf', 'do': './install --all' }
Plug 'junegunn/fzf.vim'
Plug 'junegunn/vim-easy-align'
Plug 'junegunn/goyo.vim'
Plug 'tpope/vim-surround'
Plug 'vim-scripts/YankRing.vim'
Plug 'ddollar/nerdcommenter'
Plug 'tpope/vim-repeat'
Plug 'vim-scripts/Rename2'
Plug 'tpope/vim-endwise'
Plug 'bling/vim-airline'
Plug 'tpope/vim-fugitive'
Plug 'airblade/vim-gitgutter'
" Plug 'SirVer/ultisnips'
Plug 'honza/vim-snippets'
Plug 'scrooloose/nerdtree'
Plug 'terryma/vim-multiple-cursors'
let g:multi_cursor_start_key='<C-m>'

call plug#end()

" EasyAlign
" Start interactive EasyAlign in visual mode (e.g. vip<Enter>)
vmap <Enter> <Plug>(EasyAlign)

" Start interactive EasyAlign for a motion/text object (e.g. gaip)
nmap ga <Plug>(EasyAlign)

" let g:UltiSnipsUsePythonVersion = 3
"let g:UltiSnipsExpandTrigger="<NUL>" " ctrl + space
" let g:UltiSnipsExpandTrigger="<c-l>"
" let g:UltiSnipsJumpForwardTrigger="<c-k>"
" let g:UltiSnipsJumpBackwardTrigger="<c-j>"
" let g:ctrlp_max_files = 25000

" Powerline
let g:Powerline_symbols = 'fancy'
let g:airline_powerline_fonts = 1
let g:airline_theme='nord'

" misc
set nowrap
set tabstop=2
set shiftwidth=2
set softtabstop=2
set expandtab
set backspace=indent,eol,start
set autoindent
set list listchars=tab:\ \ ,trail:·
set modelines=0
set number " line numbers
set ruler
set encoding=utf-8 " Encoding to UTF-8
set visualbell
set ttyfast
set lazyredraw " buffer screen redraws instead of updating all the time
set hidden " Allow unsafed buffers
set wildignore+=*/gems/gems/*,*/doc/*,*/tmp/*,*/vendor/gems/*,.git,*.rbc,*.class,.svn,*.o,*.obj,public/assets/*,*.png,*.log,*.jpg,.bundle,*/public/system/*
set wildmenu
set wildmode=list:longest
set guifont="Inconsolata-dz for Powerline":h22
set laststatus=2 " always display the status line
set showcmd

" Whitespace and syntax stuff
syntax on
let $NVIM_TUI_ENABLE_TRUE_COLOR=1
color nord

" Allow jsx in .js files
let g:jsx_ext_required = 0

filetype plugin indent on " indent depends on filetype
filetype plugin on

" Search
set ignorecase " search case insensitive unless...
set smartcase  " ...search phrase contains a capital letter
set incsearch
set showmatch
set hlsearch " highlight searches and unhighlight search results with <space>
nnoremap <silent> <Space> :nohlsearch<Bar>:echo<CR>

" Movement
" Have screen-line j/k instead of file-line
nnoremap j gj
nnoremap k gk
" use jj in insert mode to go back to normal mode
inoremap jj <ESC>
" make backtick behave like ' for marks
nnoremap ` '

" Filetypes
au BufRead,BufNewFile {Gemfile,Rakefile,Vagrantfile,Thorfile,config.ru}    set ft=ruby
au BufNewFile,BufRead *.json set ft=javascript
" au BufNewFile,BufRead *.go setlocal noet ts=4 sw=4 sts=4
" enable mouse
set mouse=a
if isMac
  " copy stuff to the macs clipboard
  vmap <leader>c "+y
endif

" Mappings
" Opens an edit command with the path of the currently edited file filled in
cnoremap %% <C-R>=expand("%:p:h")."/"<CR>
map <leader>e :e %%
" Double tap <leader> to switch between current and previous buffer
nnoremap <leader><leader> <c-^>

" Vim internals
" Directories for swp files
set backupdir=~/.config/nvim/backup
set directory=~/.config/nvim/backup
set timeoutlen=250  " Time to wait after ESC
set nobackup
set nowritebackup
set nowritebackup
set noswapfile
set cmdheight=2
set updatetime=300
set shortmess+=c

" FzF
let g:fzf_command_prefix = 'Fzf'
map <leader>b :FzfBuffers<cr>
map <leader>f :FzfFiles<cr>
map <leader>r :FzfRg<cr>

nnoremap <silent> <leader>z :YRShow<CR>

" Only show cursorline in active window
au WinLeave * set nocursorline
au WinEnter * set cursorline

" Golang
let g:go_fmt_command = "goimports"
let g:go_metalinter_autosave = 1
let g:go_metalinter_autosave_enabled = ['vet', 'golint']
" let g:go_bin_path = "/usr/local/bin/"
let g:go_highlight_functions = 1
let g:go_highlight_methods = 1
let g:go_highlight_structs = 1

" Show vim syntax selector under cursor
" nmap <Leader>l :call <SID>SynStack()<CR>

" TODO: Check if still needed
let $RUST_SRC_PATH = '$HOME/.cargo/src/rustc-1.8.0/src'
let g:rustfmt_autosave = 0 " auto format rust files on save

" nerdtree
" Start NERDTree when vim starts
autocmd VimEnter * NERDTree
" Jump to the main window.
autocmd VimEnter * wincmd p
map <Leader>t :NERDTreeToggle<CR>
let g:NERDTreeWinSize=22
" close vim if nerdtree is last window
autocmd bufenter * if (winnr("$") == 1 && exists("b:NERDTree") && b:NERDTree.isTabTree()) | q | endif

" allow others to easier work on my machine by mapping ctrl+s to save
noremap <silent> <C-S>          :update<CR>
vnoremap <silent> <C-S>         <C-C>:update<CR>
inoremap <silent> <C-S>         <C-O>:update<CR>
function! <SID>SynStack()
  if !exists("*synstack")
    return
  endif
  echo map(synstack(line('.'), col('.')), 'synIDattr(v:val, "name")')
endfunc