let mapleader = ","
set nocompatible              " be iMproved, required
filetype off                  " required

let vundle_dir="~/.vim/bundle/Vundle.vim"
if filereadable(expand(vundle_dir) . "/README.md")
    " set the runtime path to include Vundle and initialize
    let &rtp .= "," . vundle_dir
    call vundle#begin()

    Plugin 'VundleVim/Vundle.vim' " let Vundle manage Vundle, required

    Plugin 'scrooloose/nerdtree'
    Plugin 'c.vim'
    Plugin 'jeetsukumaran/vim-buffergator'
    Plugin 'ericcurtin/CurtineIncSw.vim'
    Plugin 'tpope/vim-fugitive'
    Plugin 'tpope/vim-surround'
    Plugin 'ctrlpvim/ctrlp.vim'
    Plugin 'rhysd/vim-clang-format'
    " Plugin 'shougo/neocomplete'
    Plugin 'godlygeek/tabular'
    Plugin 'airblade/vim-gitgutter'
    Plugin 'jeetsukumaran/vim-pythonsense'
    Plugin 'easymotion/vim-easymotion'
    Plugin 'cpiger/NeoDebug'
    Plugin 'ivan-krukov/vim-snakemake'
    Plugin 'nvie/vim-flake8'

    call vundle#end()            " required
else
    let vundle_repo="https://github.com/VundleVim/Vundle.vim.git"
    echo "Vundle not installed, type :CloneVundle to clone the vundle repo and install it"
    command CloneVundle execute "!git clone " . vundle_repo . " " . vundle_dir
endif

if !exists("vimrc_autocmds_loaded")
    let vimrc_autocmds_loaded = 1

    " Set the filetype based on the file's extension, but only if
    " 'filetype' has not already been set
    au BufRead,BufNewFile .i3initrc      setfiletype sh
    au BufRead,BufNewFile *.config       setfiletype conf
    au BufRead,BufNewFile [Ss]nakefile.* setfiletype snakemake

    au BufWritePost * if search('\s\+$', 'wn') | call WhitespaceWarn() | endif

    au BufRead,BufNewFile *    setlocal textwidth=0  | setlocal colorcolumn=
    au BufRead,BufNewFile *.md setlocal textwidth=80 | setlocal colorcolumn=80
    au BufRead,BufNewFile *.py setlocal colorcolumn=100

    if exists(":NERDTree")
        " Open NERDTree if no file specified
        au StdinReadPre * let s:std_in=1
        au VimEnter * if argc() == 0 && !exists("s:std_in") | NERDTree | endif
    endif

    au BufEnter,FocusGained,InsertLeave * set rnu
    au BufLeave,FocusLost,InsertEnter   * set nornu
endif
set updatetime=1000 " Default is 4s, but reduce it to make things more real time, like git gutter
highlight Search ctermbg=5
highlight ColorColumn ctermbg=4

filetype plugin indent on    " required
syntax on

set tabstop=4 " show existing tab with 4 spaces width
set shiftwidth=4 " when indenting with '>', use 4 spaces width
set expandtab " On pressing tab, insert 4 spaces

set mouse=a
set hlsearch
set scrolloff=5 " Don't let cursor be within 5 lines from top or bottom

" Warn for trailing whitespace. Search with wrap (w) do not move cursor (n)
function! WhitespaceWarn()
    if &ft =~ 'markdown'
        return
    endif
    echohl WarningMsg
    echo 'Found whitespace.'
    echohl None
    echon ' Type :TrailWhitespace to remove it'
endfunction
function! StripTrailingWhitespace()
    " Save cursor position
    let l:save = winsaveview()
    " Remove trailing whitespace
    %s/\s\+$//e
    " Move cursor to original position
    call winrestview(l:save)
    echo "Stripped trailing whitespace"
endfunction

command TrailWhitespace call StripTrailingWhitespace()

" Hybrid line numbers on active buffer
set nu rnu

" Do incremental searching when it's possible to timeout.
if has('reltime')
  set incsearch
endif

" Copy to the end of line
noremap Y y$

" define upper case versions of :w and :q
command! -bang -range=% -complete=file -nargs=* W <line1>,<line2>write<bang> <args>
command! -bang Q quit<bang>

" fugitive.vim looks for tags in .git
" set tags +=~/tags " Recursively move upwards in tree, searching in subfolders for tags file

" Status line
set laststatus=2
set statusline=
if exists('g:loaded_fugitive')
    set statusline+=%#StatusLineTerm#
endif
set statusline+=%{FugitiveStatusline()}
set statusline+=%#MoreMsg#
set statusline+=\ %f
set statusline+=%m\ "
set statusline+=%=
set statusline+=%#WildMenu#
set statusline+=%y
set statusline+=\ %p%%
set statusline+=\ %l:%c"
set statusline+=%#MoreMsg#
set statusline+=\ "


" CtrlP
let g:ctrlp_working_path_mode = 'ra'

" Find project root
let git_dir_location=finddir('.git', ';')
let git_root_location=fnamemodify(git_dir_location, ':h')

" Simulate maximize/minimize window
nnoremap <C-w>m :call ToggleMiniMaxiWin()<CR>
nnoremap <leader>wm :call ToggleMiniMaxiWin()<CR>
function! ToggleMiniMaxiWin()
    if tabpagewinnr(tabpagenr(), '$') > 1
        tab split
    elseif tabpagenr('$') > 1
        if tabpagenr() < tabpagenr('$')
            tabclose
            tabprevious
        else
            tabclose
        endif
    endif
endfunction

" Key binds
"
command! Csc cscope find c <cword>

" Easymotion leader
map <Leader><tab> <Plug>(easymotion-prefix)
" Forwards and backwards jump and visual select
map <tab> <Plug>(easymotion-s)
map <space> <C-V><Plug>(easymotion-s)
" Forwards and backwards word jump
map <Leader>w <Plug>(easymotion-bd-w)
" Easymotion overwin line
nmap <Leader><tab>l <Plug>(easymotion-overwin-line)
" Easymotion search
nmap <S-tab> <Plug>(easymotion-sn)
nmap <S-tab> <Plug>(easymotion-tn)

" Replace the word under cursor
nnoremap <leader>* :%s/\<<c-r><c-w>\>//g<left><left>
" Replace visual selection
vnoremap <leader>* y:%sno/<c-r>"//g<left><left>

nmap <F2> :NERDTreeToggle<CR>
nmap <F3> :NERDTreeFind<CR>
map <F5> :call CurtineIncSw()<CR>

nmap <Leader>cf :cd %:p:h <CR> " Change dir to parent of current file
nmap <Leader>cg :cd $git_root_location <CR> " Change dir to git root
nmap <Leader>vs :sp $MYVIMRC <CR>
nmap <Leader>vv :vsp $MYVIMRC <CR>
nmap <Leader>vt :tabnew $MYVIMRC <CR>
nmap <Leader>vo :e $MYVIMRC <CR>
nmap <Leader>v :e $MYVIMRC <CR>

" Match git conflict markers
nmap <Leader>/g /[<=>]\{7,}.*$<CR>
" Git-Gutter status, commit, grep, blame
nmap <Leader>gs :Gstatus<CR>
nmap <Leader>gS :!git add %<CR>
nmap <Leader>gc :Gcommit<CR>
nmap <Leader>gg :Ggrep<space>
nmap <Leader>gb :Gblame<CR>

" Toggle wrapping of long lines
nmap <Leader>l :set wrap!<CR>

" Strip trailing whitespace
nmap <Leader><space> :TrailWhitespace <CR>

" Scroll window while keeping cursor on same line with shift
nmap <S-j> <c-e>
nmap <S-k> <c-y>
vmap <S-j> <c-e>
vmap <S-k> <c-y>

" Misc.
map <Leader>n :noh<CR>
vmap <Leader>T :'<,'> Tabularize /
nnoremap <leader>c :execute "set colorcolumn=" . (&colorcolumn == "" ? "120" : "")<CR>