.vimrc

" Disable compatibility with vi which can cause unexpected issues.
set nocompatible

" Enable type file detection. Vim will be able to try to detect the type of file in use.
filetype on

" Enable plugins and load plugin for the detected file type.
filetype plugin on

" Load an indent file for the detected file type.
filetype indent on

" Turn syntax highlighting on.
syntax on

" Add numbers to each line on the left-hand side.
set number

" Highlight cursor line underneath the cursor horizontally.
set cursorline

" Highlight cursor line underneath the cursor vertically.
set cursorcolumn

" Set shift width to 4 spaces.
set shiftwidth=4

" Set tab width to 4 columns.
set tabstop=4

" Set encoding to utf-8
set encoding=utf-8

" Use space characters instead of tabs.
"set expandtab

" Do not save backup files.
"set nobackup

" Do not let cursor scroll below or above N number of lines when scrolling.
"set scrolloff=10

" Do not wrap lines. Allow long lines to extend as far as the line goes.
set nowrap

" While searching though a file incrementally highlight matching characters as you type.
set incsearch

" Ignore capital letters during search.
"set ignorecase

" Override the ignorecase option if searching for capital letters.
" This will allow you to search specifically for capital letters.
"set smartcase

" Show partial command you type in the last line of the screen.
set showcmd

" Show the mode you are on the last line.
set showmode

" Show matching words during a search.
set showmatch

" Use highlighting when doing a search.
set hlsearch

" Set the commands to save in history default number is 20.
set history=1000

" Enable auto completion menu after pressing TAB.
set wildmenu

" Make wildmenu behave like similar to Bash completion.
set wildmode=list:longest

" There are certain files that we would never want to edit with Vim.
" Wildmenu will ignore files with these extensions.
set wildignore=*.docx,*.jpg,*.png,*.gif,*.pdf,*.pyc,*.exe,*.flv,*.img,*.xlsx

" PLUGINS ---------------------------------------------------------------- {{{

call plug#begin('~/.vim/plugged')

  Plug 'dense-analysis/ale'
  Plug 'preservim/nerdtree'
  Plug 'liuchengxu/vim-clap', {'do': ':Clap install-binary!'}
  Plug 'tomtom/tcomment_vim'
  Plug 'liuchengxu/vista.vim'
  Plug 'tpope/vim-repeat'
  Plug 'tpope/vim-surround'
  Plug 'tommcdo/vim-exchange'
  Plug 'tpope/vim-fugitive'
  Plug 'preservim/vim-pencil'
  Plug 'junegunn/fzf', {'do': {->fzf#install()}}
  Plug 'junegunn/fzf.vim'

call plug#end()
" }}}
" MAPPINGS --------------------------------------------------------------- {{{

" Mappings code goes here.

" }}}
" VIMSCRIPT -------------------------------------------------------------- {{{

" Make Ag searches only inside file and not filenames by making it search only
" from the 4th :
" command! -bang -nargs=* Ag
" 	\ call fzf#vim#ag(<q-args>,
" 	\				  fzf#vim#with_preview(
" 	\ 				  {'options': '--delimiter : --nth 4..'},
" 	\				  'right:50%'),
" 	\				  <bang>0)

" Allows passing arguments to :Ag
function! s:ag_with_opts(arg, bang)
	let tokens = split(a:arg)
	let ag_opts = join(filter(copy(tokens), 'v:val =~ "^-"')).' --delimiter : --nth 4..'
	let dir = join(filter(copy(tokens), 'v:val =~ "^\/"'))
	let query = join(filter(copy(tokens), 'v:val !~ "^[-/]"'))
	let ag_args = fzf#vim#with_preview({'options': ag_opts},
				\					   'right:50%')
	let dir = substitute(dir,'^\/','','')
	let ag_args['dir'] = dir
	call fzf#vim#ag(query,
				\	ag_args,
				\	a:bang)
endfunction

autocmd VimEnter * command! -nargs=* -bang Ag
	\ call s:ag_with_opts(<q-args>, <bang>0)

" Enable the marker method of folding.
augroup filetype_vim
    autocmd!
    autocmd FileType vim setlocal foldmethod=marker
augroup END

augroup filetype_f90
	autocmd!
	autocmd FileType fortran setlocal foldmethod=indent
augroup END

" If the current file type is HTML, set indentation to 2 spaces.
autocmd Filetype html setlocal tabstop=2 shiftwidth=2 expandtab

" If Vim version is equal to or greater than 7.3 enable undofile.
" This allows you to undo changes to a file even after saving it.
if version >= 703
    set undodir=~/.vim/backup
    set undofile
    set undoreload=10000
endif

" You can split a window into sections by typing `:split` or `:vsplit`.
" Display cursorline and cursorcolumn ONLY in active window.
augroup cursor_off
    autocmd!
    autocmd WinLeave * set nocursorline nocursorcolumn
    autocmd WinEnter * set cursorline cursorcolumn
augroup END

" If GUI version of Vim is running set these options.
if has('gui_running')

    " Set the background tone.
    set background=dark

    " Set the color scheme.
    colorscheme molokai

    " Set a custom font you have installed on your computer.
    " Syntax: set guifont=<font_name>\ <font_weight>\ <size>
    set guifont=Monospace\ Regular\ 12

    " Display more of the file by default.
    " Hide the toolbar.
    set guioptions-=T

    " Hide the the left-side scroll bar.
    set guioptions-=L

    " Hide the the right-side scroll bar.
    set guioptions-=r

    " Hide the the menu bar.
    set guioptions-=m

    " Hide the the bottom scroll bar.
    set guioptions-=b

    " Map the F4 key to toggle the menu, toolbar, and scroll bar.
    " <Bar> is the pipe character.
    " <CR> is the enter key.
    nnoremap <F4> :if &guioptions=~#'mTr'<Bar>
        \set guioptions-=mTr<Bar>
        \else<Bar>
        \set guioptions+=mTr<Bar>
        \endif<CR>

endif
" }}}
" STATUS LINE ------------------------------------------------------------ {{{

" Clear status line when vimrc is reloaded.
set statusline=

" Status line left side.
set statusline+=\ %F\ %M\ %Y\ %R

" Use a divider to separate the left side from the right side.
set statusline+=%=

" Status line right side.
set statusline+=\ ascii:\ %b\ hex:\ 0x%B\ row:\ %l\ col:\ %c\ percent:\ %p%%

" Show the status on the second to last line.
set laststatus=2
" }}}