""  Required by Vundle
set nocompatible
filetype off
set rtp+=~/.vim/bundle/vundle/
call vundle#rc()

""  Plugins
Plugin 'gmarik/vundle'
Plugin 'LaTeX-Box-Team/latex-box'
Plugin 'fugitive.vim'
Plugin 'UltiSnips'
Plugin 'kien/ctrlp.vim'
Plugin 'tpope/vim-surround'
Plugin 'scrooloose/nerdtree'
Plugin 'tommcdo/vim-exchange'
Plugin 'unimpaired.vim'
Plugin 'Tabular'
Plugin 'tComment'
Plugin 'Gundo'
Plugin 'altercation/vim-colors-solarized'
" Plugin 'klen/python-mode'
Plugin 'honza/vim-snippets'

filetype plugin indent on

""  Configuration  

"  UltiSnips
let g:UltiSnipsExpandTrigger="<tab>"
let g:UltiSnipsJumpForwardTrigger="<tab>"
let g:UltiSnipsJumpBackwardTrigger="<s-tab>"
let g:UltiSnipsListSnippets="<c-l>"
let g:UltiSnipsEditSplit="horizontal"
let g:UltiSnipsSnippetsDir="~/.vim/mySnippets"
let g:UltiSnipsSnippetDirectories=['UltiSnips', 'mySnippets']
let g:ctrlp_open_new_file = 't'
noremap <c-h> :UltiSnipsEdit<Return>

"  Latex-Box
let g:tex_flavor='latex'
let g:tex_conceal= 'adgm'
let g:LatexBox_Folding=0
let g:LatexBox_viewer='zathura'
let g:LatexBox_latexmk_preview_continuously=1
let g:LatexBox_quickfix=2
function! SynctexShow()
    let synctex = glob("*.synctex.gz")
    if strlen(synctex) == 0
        echo "no synctex file found"
    else
        let pdffile = substitute(synctex,"synctex.gz","pdf","")
        let execline = printf(":!zathura --synctex-forward %d:%d:%s %s", line('.'), col('.'), shellescape(bufname("%")), shellescape(pdffile))
        exec execline
    end
endfunction

" Access
nnoremap <LocalLeader>a :call SynctexShow()<CR><CR>

" Initiate
nnoremap <LocalLeader>i :Latexmk<CR>

" Open
nnoremap <LocalLeader>o :LatexView<CR>

" Kill
nnoremap <LocalLeader>k :LatexmkStop<CR>:LatexmkClean<CR>

"  Gundo
nnoremap <F5> :GundoToggle<cr>

"  Nerdtree
nnoremap <F3> :NERDTreeToggle<cr>


let NERDTreeIgnore=['\.pdf$', '\~$','\.toc$',
            \ '\.fls$','\.bbl$','\.blg$',
            \ '\.out$', '\.log$','\.aux$','\.sty$',
            \ '\.fdb_latexmk$', '\.synctex.gz$','\.latexmain$']

"  CTRL-P

let g:ctrlp_map = '<c-p>'
let g:ctrlp_by_filename = 1
let g:ctrlp_working_path_mode = ''
let g:ctrlp_show_hidden = 1

""  Options  

"  Tabs and indent
set smartindent
set nosmarttab
set expandtab
set tabstop=4
set softtabstop=4
set shiftwidth=4
set autoindent
" set cindent

"  Folds
set foldcolumn=0
set foldenable
set foldmethod=expr
set foldlevel=0

"  Search
set hlsearch
set incsearch

"  Back up files
set noswapfile
set nowritebackup
set undofile
set undodir=/home/urbain/.vim/vimundo/

"  Layout window
set nonumber
set ruler
set showcmd
set listchars=tab:▸\ ,eol:¬
set fillchars=fold:\ ,vert:\ ,
set showbreak=...
set colorcolumn=0
set scrolloff=0
if has('gui_running')
    set t_Co=256
else
    set t_Co=256
endif
set guitablabel=%N\ %t\ %M
set showcmd

"  Layout text
set wrap
set linebreak
set textwidth=0
set conceallevel=2
set guifont=Monaco\ 11


"  Case and spell
set nospell
set smartcase
set ignorecase

"  General
set noautochdir
set wildmenu
set cpoptions+=I
set encoding=utf-8

""  Colorscheme
function! UpdateColorscheme()
    try | colorscheme solarized | catch | endtry
    if strftime("%H") >= 9 && strftime("%H") < 17
        set background=light
    else
        set background=dark
    endif

    echom

    hi Cursor guifg=white guibg=blue
    hi iCursor guifg=black guibg=green
    hi! link conceal normal
    hi! link folded comment
endfunction
autocmd! BufNewFile,BufRead,BufWrite * :call UpdateColorscheme()

""  Custom mappings

"  Leader maps
let mapleader = "\\"
let maplocalleader = "-"
nmap <Space> <Leader>

" General
nnoremap <Leader>te :tabedit 
nnoremap <Leader>tn :tabnew<cr>
nnoremap <Leader>to :tabonly<cr>
nnoremap <Leader>w :w<cr>
nnoremap <Leader>q :q!<cr>
nnoremap <Leader>h :set hlsearch!<cr>
nnoremap <Leader>n :set relativenumber!<cr>
nnoremap <Leader>sv :source ~/.vim/vimrc<cr>
nnoremap <Leader>sc :source %

"  Other maps
nnoremap <Return> o<Esc>
nnoremap <s-Return> O<Esc>
nnoremap J mzJ`z
nnoremap - za
nnoremap <c-y> 3<c-y>
nnoremap <c-e> 3<c-e>

nnoremap j gj
nnoremap k gk
nnoremap $ g$
nnoremap ^ g^
nnoremap gj j
nnoremap gk k
nnoremap g$ $
nnoremap g^ ^

vnoremap j gj
vnoremap k gk
vnoremap $ g$
vnoremap ^ g^
vnoremap gj j
vnoremap gk k
vnoremap g$ $
vnoremap g^ ^

"  Convenient maps
" nnoremap e j
" nnoremap u k
" nnoremap j e
" nnoremap k u

""  Latex  
nmap <buffer> <F2> <Plug>LatexChangeEnv
let g:tex_fast="" 

"  Synctex 
function! LatexEvinceSearch()
    execute "!cd " . LatexBox_GetTexRoot() . '; evince_vim_dbus.py EVINCE "`basename ' . LatexBox_GetOutputFile(). '`" ' . line('.') . ' "%:p"'
endfun

command! LatexEvinceSearch call LatexEvinceSearch()

autocmd FileType tex map <F6> :silent LatexEvinceSearch <Return>
autocmd Filetype tex call SetTexOptions()


""  Functions  
function! Tex_ForwardSearchLaTeX()
    let cmd = 'evince_forward_search ' . fnamemodify(LatexBox_GetMainTexFile(), ":p:r") .  '.pdf ' . line(".") . ' ' . expand("%:p")
    let output = system(cmd)
endfunction

function! SetTexOptions()

    inoremap (( \left(
    inoremap )) \right)
    inoremap {{ \left\{
    inoremap }} \right\}
    inoremap [[ \left[
    inoremap ]] \right]
    inoremap == \,=\,
    inoremap >> \,\geq\,
    inoremap << \,\leq\,
    inoremap ++ \,+\,
    inoremap -- \,-\,

    imap `a \alpha
    imap `b \beta
    imap `g \gamma
    imap `d \delta
    imap `e \varepsilon
    imap `z \zeta
    imap `h \eta
    imap `t \theta
    imap `i \iota
    imap `k \kappa
    imap `l \lambda
    imap `m \mu
    imap `n \nu
    imap `x \xi
    imap `r \rho
    imap `s \sigma
    imap `f \phi
    imap `p \pi
    imap `w \omega

endfunction

""  Autocommands  
augroup autorelead_vimrc
    au! 
    au BufWritePost ~/.vim/vimrc source ~/.vim/vimrc
augroup END