let 
  nixpkgs = import <nixpkgs> {};
  patchedPkgsSrc = nixpkgs.stdenv.mkDerivation {
    name = "patchedPkgsSrc";
    src = nixpkgs.pkgs.fetchFromGitHub {
      owner = "nixos";
      repo = "nixpkgs-channels";
      rev = "81fceb255448415e70b9e7775d590b6def45f861";
      sha256 = "0sfx21b9rb6qxjm7li3krk6ik0xxph1il7r5l69n8b9agp72yjfx";
    };
    patches = [ ./build/texlive-url-mirror.patch ];
    buildPhase = "";
    installPhase = ''
      cp -a . $out
    '';
    fixupPhase = "true";
    postFixup = "true";
  };
  pkgs = import patchedPkgsSrc {};

  mytexlive =  (pkgs.texlive.combine {
    inherit (pkgs.texlive) scheme-full;
  });

in pkgs.stdenv.mkDerivation {
  name = "msc-thesis";
  shellHook = ''
    alias vim-thesis="vim -p --servername VIM -- \
      $PWD/src/docs/thesis.tex \
      $PWD/src/docs/glossary.tex \
      $PWD/src/docs/parts/context/context.tex \
      $PWD/src/docs/parts/research/research.tex \
    "
  '';
  buildInputs = [ 
    pkgs.xdotool
    (pkgs.vim_configurable.customize {
      name = "vim"; 
      vimrcConfig = {
        # add custom .vimrc lines like this:
        customRC = ''
          set nocompatible

          " leader
          let mapleader = ','

          set hidden
          syntax on
          set hlsearch
          set number

          " mappings to stop insert mode
          imap jjj <ESC>
          imap kkk <ESC>
          imap lll <ESC>
          imap hhh <ESC>
          set scroll=11

          noremap <C-n> :tabn<CR>
          noremap <C-p> :tabp<CR>
          let g:ctrlp_map = '<tab>'
          let g:ctrlp_custom_ignore = {
            \ 'dir':  '\v[\/]\.(git|hg|svn|)$$',
            \ 'file': '\v\.(exe|so|dll|so|swp|zip|aux|log|fdb_latexmk|fdb|dvi|lof|lot|pdf|fls|toc|gz|latexmain)$$',
            \ }

          " allways show status line
          set ls=2
          set tabstop=4
          set shiftwidth=4
          set softtabstop=4
          set expandtab
          "set textwidth=80

          " sync default register to clipboard {
          if has('unnamedplus')
            set clipboard=unnamedplus
          else
            set clipboard=unnamed
          endif
          " }

          " colored brackets {
          let g:rbpt_colorpairs = [
              \ ['brown',       'RoyalBlue3'],
              \ ['Darkblue',    'SeaGreen3'],
              \ ['darkgray',    'DarkOrchid3'],
              \ ['darkgreen',   'firebrick3'],
              \ ['darkcyan',    'RoyalBlue3'],
              \ ['darkred',     'SeaGreen3'],
              \ ['darkmagenta', 'DarkOrchid3'],
              \ ['brown',       'firebrick3'],
              \ ['gray',        'RoyalBlue3'],
              \ ['black',       'SeaGreen3'],
              \ ['darkmagenta', 'DarkOrchid3'],
              \ ['Darkblue',    'firebrick3'],
              \ ['darkgreen',   'RoyalBlue3'],
              \ ['darkcyan',    'SeaGreen3'],
              \ ['darkred',     'DarkOrchid3'],
              \ ['red',         'firebrick3'],
              \ ]
          let g:rbpt_max = 16
          let g:rbpt_loadcmd_toggle = 0

          au VimEnter * RainbowParenthesesToggle
          au Syntax * RainbowParenthesesLoadRound
          au Syntax * RainbowParenthesesLoadSquare
          au Syntax * RainbowParenthesesLoadBraces
          " }
          set backspace=indent,eol,start
          colorscheme PaperColor

          " Latex Related {{{
          au BufRead,BufNewFile *.tex,*.md,*.markdown setlocal spell spelllang=en_us

          let g:vimtex_view_method = 'zathura'

          let g:vimtex_complete_enabled = 1
          let g:vimtex_complete_close_braces = 1
          let g:vimtex_complete_recursive_bib = 1
					let g:vimtex_indent_enabled = 1
					let g:vimtex_indent_bib_enabled = 1

					if !exists('g:ycm_semantic_triggers')
						let g:ycm_semantic_triggers = {}
					endif
          let g:ycm_semantic_triggers.tex = [
						\ 're!\\[A-Za-z]*cite[A-Za-z]*(\[[^]]*\]){0,2}{[^}]*',
						\ 're!\\[A-Za-z]*ref({[^}]*|range{([^,{}]*(}{)?))',
						\ 're!\\hyperref\[[^]]*',
						\ 're!\\includegraphics\*?(\[[^]]*\]){0,2}{[^}]*',
						\ 're!\\(include(only)?|input){[^}]*',
						\ 're!\\\a*(gls|Gls|GLS)(pl)?\a*(\s*\[[^]]*\]){0,2}\s*\{[^}]*',
						\ 're!\\includepdf(\s*\[[^]]*\])?\s*\{[^}]*',
						\ 're!\\includestandalone(\s*\[[^]]*\])?\s*\{[^}]*',
						\ ]

          function! ViewerCallback() dict
            call self.forward_search(self.out)
          endfunction
          let g:vimtex_view_zathura_hook_callback = 'ViewerCallback'
          " }}}

          autocmd BufWritePost * execute ':silent ! cp /home/steveej/src/mendeley/Static-Code-Analysis-Kernel-Memory-Saftey.bib /home/steveej/src/steveej/msc-thesis/src/docs/thesis.bib >/dev/null 2>&1'
         '';

         vam.knownPlugins = pkgs.vimPlugins;
         vam.pluginDictionaries = [
           "youcompleteme"
           "vim-airline"
           "ctrlp"
           "vim-css-color"
           "rainbow_parentheses"
           "vim-colorschemes"
           "vim-signify"
           "vimtex"
        ];
      };
    })
    mytexlive
    pkgs.zathura
  ]; 
}