.vimrc

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" => vim-plug
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call plug#begin('~/.vim/plugged')

" add all your plugins here 
" Plug 'monkey/bananas' is shorthand for 
" Plug 'https://github.com/monkey/bananas'
    " No BS code folding for python
Plug 'tmhedberg/SimpylFold'
    " Better python indentation
" Plug 'vim-scripts/indentpython.vim'
Plug 'Vimjas/vim-python-pep8-indent'
    " Auto pep8
Plug 'tell-k/vim-autopep8'
    " Autocomplete
Plug 'Valloric/YouCompleteMe'
"Plug 'maralla/completor.vim'
    " Latex tools
Plug 'vim-latex/vim-latex'
    " Git mergetool
"Plug 'whiteinge/diffconflicts'
    " Git commands
Plug 'tpope/vim-fugitive'

" Syntax error checking. 
" Plug 'vim-syntastic/syntastic'
Plug 'dense-analysis/ale'
    " The plugin needs external syntax checkers
    " Checker for python syntax and style
" Plug 'nvie/vim-flake8'


" Color schemes
Plug 'nanotech/jellybeans.vim'
Plug 'jnurmine/Zenburn'
Plug 'morhetz/gruvbox'
Plug 'ciaranm/inkpot'
Plug 'xiaody/thornbird.vim'
Plug 'sjl/badwolf'
Plug 'joshdick/onedark.vim'
Plug 'challenger-deep-theme/vim'

" Syntax highlighting
    " Python
Plug 'vim-python/python-syntax'
    " Syntax highlighting and indentation for haskell
Plug 'neovimhaskell/haskell-vim'
    " Rainbow parenthesis
Plug 'luochen1990/rainbow'

" Concealment for haskell
Plug 'enomsg/vim-haskellConcealPlus'

" All of your Plugins must be added before the following line
call plug#end()


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" => General
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" Sets how many lines of history VIM has to remember
set history=500

" Enable filetype plugins
filetype plugin on
filetype indent on

" Set to auto read when a file is changed from the outside
set autoread

" Set leader (this is the default)
let mapleader = '\'

" Set encoding
set encoding=utf-8


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" => VIM user interface
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" Set n lines to the cursor - when moving vertically using j/k
set scrolloff=3

" Set n characters to the cursor when moving right and left
set sidescrolloff=5

"Always show current position
set ruler

" Set row numbers and relative numbers
set number
set relativenumber

" Height of the command bar
set cmdheight=1

" Show commands as they are typed
set showcmd

" Always show tabline
set showtabline=2

" Display command line’s tab complete options as a menu.
set wildmenu

" A buffer becomes hidden when it is abandoned
" set hid

" Ignore case when searching
set ignorecase

" When searching try to be smart about cases
set smartcase

" Highlight search results
set hlsearch

" Incremental search
set incsearch

" Show matching brackets when text indicator is over them
set showmatch
" How many tenths of a second to blink when matching brackets
set mat=2

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" => Colors and fonts
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"Make code look pretty
let python_highlight_all=1
syntax on

" Set colorscheme
"colorscheme my_challenger_deep
colorscheme onedark

" Let challenger_deep do italics even in terminal
let g:challenger_deep_terminal_italics = 1

" Options for haskell concealing
let hscouptions="s𝐌"

" Rainbow parentheses
let g:rainbow_active = 1

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" => Statusline
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" Always show statusline
set laststatus=2

" Get current git branch
function! GitBranch(git)
  if a:git == ""
    return '-'
  else
    return a:git
  endif
endfunction

" If file is a tex file, run texcount on save and output to statusline
let g:latex_wc=""
augroup latexstatus
    autocmd!
    " Whenever a tex file is written, Read or entered (e.g. when switching to
    " tab) count the words
    autocmd BufWritePost,BufRead,BufEnter *.tex :let g:latex_wc=GetWC()." words"
    " Whenever tex file is left, do not display a wordcount
    autocmd BufLeave *.tex :let g:latex_wc=""
augroup END

" Get the texcount wordcount for current file
function! GetWC()
    let l:tmp=system("texcount"." ".expand('%'))
    let l:tmp1=system("grep 'Words in text'", l:tmp)
    let l:tmp2=system("egrep -o -e '[0-9]+'", l:tmp1)
    let l:tmp3=system("tr -d '\n'", l:tmp2)
    return l:tmp3
endfunction

" Define some highlight groups to display nice colors
hi link Base Normal
"hi ColCol ctermbg=235 ctermfg=245
" hi SepCol ctermbg=238 ctermfg=39 cterm=bold gui=bold guibg=#444444 guifg=#00afff
hi FileName ctermfg=208 guifg=#ff8700
hi SepCol ctermfg=39 cterm=bold gui=bold guifg=#00afff
hi GitCol ctermfg=35 guifg=#00af5f

" Create the statusline
set statusline=%#Base#
set statusline+=%#LineNr#
set statusline+=%3c
set statusline+=%#SepCol#%{'\ «\ '}%#FileName#
set statusline+=%t      " Filename
set statusline+=%1m     " Modified flag
set statusline+=%1r     " Read-Only flag
set statusline+=%#SepCol#%{'\ »\ \ \ '}%#Base#

set statusline+=%= " Left - Right separation
set statusline+=%{g:latex_wc} " Latex wordcount
set statusline+=%#SepCol#%{'\ \ \ «\ '}%#Base#
set statusline+=%#GitCol#
set statusline+=\ 
set statusline+=%{GitBranch(fugitive#head())}
set statusline+=\ 


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" => Text, tab and indent related
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" Use spaces instead of tabs
set expandtab

" Be smart when using tabs ;)
set smarttab

" 1 tab == 4 spaces
set shiftwidth=4
set tabstop=4

set autoindent "Auto indent
filetype plugin indent on
set wrap "Wrap lines

" Enable folding
set foldmethod=indent
set foldlevel=99

" Enable folding with spacebar
nnoremap <space> za

"Let enter make empty line below and shift enter empty line above
map <Enter> o<ESC>
map <S-Enter> O<ESC>

" Let backspace remove indents and eols
set backspace=indent,eol,start

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" => YouCompleteMe customization
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"Makes the autocomplete window go away after completion
let g:ycm_autoclose_preview_window_after_completion=0

"Makes the autocomplete window go away after exited insert mode
let g:ycm_autoclose_preview_window_after_insertion=1

"Define shorcut for goto definition
map <leader>g :YcmCompleter GoToDefinitionElseDeclaration<CR>

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" => ALE customization
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nmap <F9> <Plug>(ale_detail)
nmap <leader>n <Plug>(ale_next)
nmap <leader>p <Plug>(ale_previous)

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" => vim-autopep8
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" Disable show diff window
let g:autopep8_disabe_show_diff=1

" Map it to the f8 key
augroup Autopep8cmds
    autocmd!
    autocmd FileType python noremap <buffer> <F8> :call Autopep8()<CR>
augroup END

" Do not format on save 
let g:autopep8_on_save = 0