if has("autocmd")

  " Show trailing white space
  autocmd InsertEnter * match ExtraWhitespace /\s\+\%#\@<!$/
  autocmd InsertLeave * match ExtraWhitespace /\s\+$/

  " Source the vimrc file after saving it
  autocmd BufWritePost .vimrc.local nested source $MYVIMRC

  " Fugitive - Go up to previous tree object while exploring git tree with '..'
  autocmd User fugitive
    \ if fugitive#buffer().type() =~# '^\%(tree\|blob\)$' |
    \   nnoremap <buffer> .. :edit %:h<CR> |
    \ endif

  " Fugitive - Delete buffers when they are not active
  autocmd BufReadPost fugitive://* set bufhidden=delete

endif


""""""""
"" Tabs and Text Formatting
""""""""""""""""""""""""""""""""""""""""""""""""""""""

set tabstop=2       " actual tab press distance
set shiftround      " indent to nearest tabstops
set shiftwidth=2    " amount to indent with > and <
set smarttab        " backspace tabs where appropriate even if spaces
set softtabstop=2   " let backspace delete by indents
set textwidth=80    " try to keep text within 80 characters
set colorcolumn=+1  " mark out the limits of the textwidth


""""""""
"" UI - Colours
""""""""""""""""""""""""""""""""""""""""""""""""""""""

set t_Co=16

" show trailing white space
highlight ExtraWhitespace ctermfg=red ctermbg=red guifg=red guibg=red

" reverse indent guides highlighting
highlight IndentGuidesOdd ctermbg=darkgrey
highlight IndentGuidesEven ctermbg=black

""""""""
"" UI - Statusline (now using powerline)
""""""""""""""""""""""""""""""""""""""""""""""""""""""""


""""""""
"" UI - Code Folding
""""""""""""""""""""""""""""""""""""""""""""""""""""""""

set foldmethod=indent
set foldlevel=10


""""""""
"" Key Remaps
""""""""""""""""""""""""""""""""""""""""""""""""""""""""

" More convenient escape
inoremap kj <ESC>
inoremap jk <ESC>

" Add extra lines up and down
nnoremap <leader>j    o<Esc>k
nnoremap <leader>k    O<Esc>j

" Edit .vimrc
"nnoremap <leader>v    :e $MYVIMRC<CR>

" Clear trailing white space
nnoremap <silent> <leader>$    :%s/\s\+$//g<CR>

" Convert tabs to spaces
nnoremap <silent> <leader><TAB>    :%s/<TAB>/  /g<CR>

" Backspace to clear current search (and stop highlighting)
nnoremap <silent> <backspace>    :call ClearSearch()<CR>

nnoremap <silent> <leader>n    :set number!<CR>
nnoremap <silent> <leader>w    :set wrap!<CR>

" Toggle paste mode - no autoindenting of pasted material
nnoremap <silent> <leader>p    :set paste! paste?<CR>

" Toggle visible whitespace characters
nnoremap <silent> <leader>l    :set list!<CR>

" Toggle keyboard layout
nnoremap <silent> <leader><space>    :call CycleKeymap()<CR>

" Toggle scrollbind for moving multiple splits in sync together
nnoremap <silent> <leader>sb    :set scrollbind! scrollbind?<CR>

" Toggle mouse support.
"nnoremap <silent> <leader>m    :call ToggleMouse()<CR>

" Toggle NERDTree file browser
nnoremap <silent> <leader>d    :NERDTreeToggle<CR>

" Toggle Commenting out lines with NERDCommenter
nnoremap <silent> <leader>,    :call NERDComment("n", "toggle")<CR>
vnoremap <silent> <leader>,    <ESC>:call NERDComment("x", "toggle")<CR>

" Git commands with Fugitive
nnoremap <silent> <leader>gc   :Gcommit -v<CR>
"nnoremap <silent> <leader>gl   :Glog<CR><CR>
nnoremap <silent> <leader>gap  :Git add -p<CR>

" Function definition jumping with CtrlP's Funky plugin
nnoremap <silent> <C-F> :CtrlPFunky<CR>

""""""""
"" Key Remaps - Movement and Windows
""""""""""""""""""""""""""""""""""""""""""""""""""""""""

" jump to beginning and end of line easier
nmap H ^
nmap L $
vmap H ^
vmap L $

" Smart way to move between windows
"nnoremap <C-j> <C-w>j
"nnoremap <C-k> <C-w>k
"nnoremap <C-h> <C-w>h
"nnoremap <C-l> <C-w>l

" mapping to make movements operate on 1 screen line in wrap mode
"onoremap <silent> <expr> j ScreenMovement("j")
"onoremap <silent> <expr> k ScreenMovement("k")
"onoremap <silent> <expr> 0 ScreenMovement("0")
"onoremap <silent> <expr> ^ ScreenMovement("^")
"onoremap <silent> <expr> $ ScreenMovement("$")
"nnoremap <silent> <expr> j ScreenMovement("j")
"nnoremap <silent> <expr> k ScreenMovement("k")
"nnoremap <silent> <expr> 0 ScreenMovement("0")
"nnoremap <silent> <expr> ^ ScreenMovement("^")
"nnoremap <silent> <expr> $ ScreenMovement("$")
"xnoremap <silent> <expr> j ScreenMovement("j")
"xnoremap <silent> <expr> k ScreenMovement("k")
"xnoremap <silent> <expr> 0 ScreenMovement("0")
"xnoremap <silent> <expr> ^ ScreenMovement("^")
"xnoremap <silent> <expr> $ ScreenMovement("$")


""""""""
"" Plugin options
""""""""""""""""""""""""""""""""""""""""""""""""""""""""

""""""""" Powerline
set rtp+=~/dotfiles/powerline/powerline/powerline/bindings/vim
set noshowmode " don't show e.g. --INSERT-- since we're using powerline


""""""""" Tagbar
let g:tagbar_autoclose = 1 " close sidebar after we go to selection


""""""""" Indent Guides
let g:indent_guides_auto_colors = 0
let g:indent_guides_guide_size = 2


""""""""" Syntastic
let g:syntastic_auto_jump = 1


""""""""" CtrlP
"let g:ctrlp_working_path_mode = 'rw' let's try out ra
let g:ctrlp_extensions = ['funky']


""""""""" Vdebug
let g:vdebug_options = {
  \ 'break_on_open' : 0,
  \ 'watch_window_style' : 'compact',
  \ 'path_maps' : {"/usr": "/jails/alcatraz/usr"}
\ }


""""""""" Vim Markdown
let g:vim_markdown_folding_disabled = 1


""""""""" Sparkup
let g:sparkupNextMapping = '<leader>n' " resolve conflict with vim-multiple-cursors

""""""""" PIV
let g:DisableAutoPHPFolding = 1

""""""""
"" Functions
""""""""""""""""""""""""""""""""""""""""""""""""""""""""

function! ToggleMouse()
  if &mouse == 'a'
    set mouse=
    echo "Mouse usage disabled"
  else
    set mouse=a
    echo "Mouse usage enabled"
  endif
endfunction

function! ScreenMovement(movement)
  if &wrap
    return "g" . a:movement
  else
    return a:movement
  endif
endfunction

function! ClearSearch()
  if (@/ != "")
    let @/=""
    redraw
  endif
endfunction

function! CycleKeymap()
  if has('keymap')
    if (&keymap == '')
      set keymap=colemak
      echo "Colemak keymap selected"
    elseif (&keymap == 'colemak')
      set keymap=dvorak
      echo "Dvorak keymap selected"
    else
      set keymap=
      echo "Qwerty keymap selected"
    endif
  else
    echo "Keymaps not supported"
  endif
endfunction

for filePath in split(globpath('~/dotfiles/vim/settings', '*.vim'), '\n')
  execute 'source' filePath
endfor