set nocompatible
set encoding=utf-8

set modelines=0 " for security

set mouse=""
set backspace=indent,eol,start

au FocusLost * :wa

" Leader ====----
nnoremap ,, ,
let mapleader=","
noremap <leader>; ;
noremap ; :

" Highlighting ====----
syntax on
filetype plugin indent on

"set t_Co=256 " force enable 256-color mode.
if &t_Co >= 256 || has("gui_running")
  let base16colorspace=256
endif
colorscheme base16-default-dark
if &t_Co > 2 || has("gui_running")
  syntax on
endif

" Indentation ====----
set shiftwidth=2
set tabstop=2
set expandtab
set shiftround " use multiple of shiftwidth with '<' and '>'
set autoindent
set copyindent " copy the previous line's indentation

xnoremap < <gv
xnoremap > >gv

" Search ====----
set incsearch
set hlsearch
set wrapscan
set ignorecase " ignore case when searching
set smartcase " ignore case if search pattern is all lowercase,
  " case-sensitive otherwise

nnoremap <silent> <leader><space> :noh<cr>

" Case insensitive
nmap * /\<<C-R>=expand('<cword>')<CR>\><CR>
nmap # ?\<<C-R>=expand('<cword>')<CR>\><CR>

set showmatch
noremap <tab> %

" Screen ====----
"set nowrap
set wrap
"set textwidth=79
"set formatoptions=tqrn1
set colorcolumn=85
set number
set relativenumber
set cursorline
set shortmess=aoOstTWAI
set title " change the terminal's title
set scrolloff=3

set visualbell " don't beep
set noerrorbells " don't beep

set list
set listchars=tab:»\ ,extends:›,precedes:‹,nbsp:·,trail:·
"autocmd filetype html,xml set listchars-=tab:>.

set wildmenu
set wildmode=longest:full,full
set wildignore=*.swp,*.bak,*.pyc,*.class

set ttyfast

hi ColorColumn ctermbg=18
hi Folded ctermbg=0 ctermfg=12

" Statusline ====----
function! StatusGitInfo()
  let git = gitbranch#name()
  if git != ''
    return ' '.git
  else
    return ''
endfunction

"set ruler
set showmode
set showcmd
set laststatus=2
set statusline=
"set statusline+=\ S%{strftime('%R',\ getftime(expand('%')))} " Time when last saved
set statusline+=%1*\ %2*%<\                          " Cut at start
set statusline+=%3*%f                                 " Path
set statusline+=%{&modified?'\ +':''}                 " Modified
set statusline+=%{&ro?'\ ':''}                       " Read only
set statusline+=%{&paste?'\ P':''}                    " Paste mode
"set statusline+=[%n%H%M%R%W]\                        " flags and buf no
set statusline+=\ %4*%=%3*\                         " Section break
set statusline+=%{&ff=='unix'?'':toupper(&ff.'\ ')}   " Line ending
set statusline+=%l\ %c\ %P\                           " Line column percent
set statusline+=%2*%1*%{StatusGitInfo()}\            " Git branch
"█ ^Vue0b0

hi StatusLineNC ctermfg=020 ctermbg=019 cterm=NONE
hi User1 ctermfg=020 ctermbg=019
hi User2 ctermfg=019 ctermbg=018
hi User3 ctermfg=020 ctermbg=018
hi User4 ctermfg=018 ctermbg=000

" Stop using arrow keys ====----
" noremap <up> <nop>
" noremap <down> <nop>
" noremap <left> <nop>
" noremap <right> <nop>

" nnoremap j gj
" nnoremap k gk

set whichwrap+=<,>,h,l,[,]

" Splits ====----
nnoremap <leader>w <C-w>v<C-w>l
nnoremap <C-h> <C-w>h
nnoremap <C-j> <C-w>j
nnoremap <C-k> <C-w>k
nnoremap <C-l> <C-w>l

" History ====----
set history=1000 " remember more commands and search history
set undolevels=1000 " use many muchos levels of undo

if !isdirectory($HOME."/.vim")
  call mkdir($HOME."/.vim", "", 0770)
endif
if !isdirectory($HOME."/.vim/undo-dir")
  call mkdir($HOME."/.vim/undo-dir", "", 0700)
endif
set undodir=~/.vim/undo-dir
set undofile
" !!!! ADD THIS TO CRONTAB
" 43 0 * * 3 find /home/adam/.vim/undo-dir -type f -mtime +90 -delete

set nobackup
set noswapfile " Note: swap helps large files.

" Custom mappings ====----

" Quickly edit/reload the vimrc file
nnoremap <silent> <leader>ve :tabe $MYVIMRC<CR>
nnoremap <silent> <leader>vs :so $MYVIMRC<CR>

nnoremap <F2> :set invpaste paste?<CR>
set pastetoggle=<F2>

nnoremap <leader>W :%s/\s\+$//<cr>:let @/=''<CR>
nnoremap <leader>ft Vatzf
nnoremap <leader>S ?{<CR>jV/^\s*\}?$<CR>k:sort<CR>:noh<CR>
nnoremap <leader>q gqip
nnoremap <leader>vp `[V`]
nnoremap <leader>h :syntax sync fromstart<CR>
nnoremap <leader>l :nohlsearch<cr>:diffupdate<cr>:syntax sync fromstart<cr><c-l>
nnoremap [<space>  :<c-u>put! =repeat(nr2char(10), v:count1)<cr>'[
nnoremap ]<space>  :<c-u>put =repeat(nr2char(10), v:count1)<cr>

noremap <leader>y "+y
noremap <leader>yy "+Y
noremap <leader>p :set paste<CR>:put +<CR>:set nopaste<CR>
vnoremap p "_dP

noremap <silent> + :s/^\s*/&\/\//<CR>:noh<CR>
noremap <silent> - :s/^\(\s*\)\/\//\1/<CR>:noh<CR>

vnoremap Q gq
nnoremap Q gqap

"cnoremap w!! %!sudo tee % >/dev/null
cnoremap <c-n>  <down>
cnoremap <c-p>  <up>

" helper function to toggle hex mode
function! ToggleHex()
  " hex mode should be considered a read-only operation
  " save values for modified and read-only for restoration later,
  " and clear the read-only flag for now
  let l:modified=&mod
  let l:oldreadonly=&readonly
  let &readonly=0
  let l:oldmodifiable=&modifiable
  let &modifiable=1
  if !exists("b:editHex") || !b:editHex
    " save old options
    let b:oldft=&ft
    let b:oldbin=&bin
    " set new options
    setlocal binary " make sure it overrides any textwidth, etc.
    let &ft="xxd"
    " set status
    let b:editHex=1
    " switch to hex editor
    %!xxd
  else
    " restore old options
    let &ft=b:oldft
    if !b:oldbin
      setlocal nobinary
    endif
    " set status
    let b:editHex=0
    " return to normal editing
    %!xxd -r
  endif
  " restore values for modified and read only state
  let &mod=l:modified
  let &readonly=l:oldreadonly
  let &modifiable=l:oldmodifiable
endfunction

command! -bar Hexmode call ToggleHex()
nnoremap <leader>H :Hexmode<CR>

function! NumberToggle()
  if(&relativenumber == 1)
    set norelativenumber
  else
    set relativenumber
  endif
endfunc

nnoremap <leader>N :call NumberToggle()<cr>
"autocmd InsertEnter * :set norelativenumber
"autocmd InsertLeave * :set relativenumber

" Custom functions ====----

if filereadable(expand("~/.vimrc.local"))
  source ~/.vimrc.local
endif

function! SetLocalOptions(fname)
  let dirname = fnamemodify(a:fname, ":p:h")
  while "/" != dirname
    let lvimrc  = dirname . "/.vimrc.local"
    if filereadable(lvimrc)
      execute "source " . lvimrc
      break
    endif
    let dirname = fnamemodify(dirname, ":p:h:h")
  endwhile
endfunction

au BufNewFile,BufRead * call SetLocalOptions(bufname("%"))


" To move elsewhere ====----
au BufNewFile,BufRead *.less set filetype=less
autocmd! BufWritePost $MYVIMRC source $MYVIMRC
autocmd! BufRead,BufNewFile *.md set filetype=markdown
autocmd! BufRead,BufNewFile *.md set spell
packadd! matchit