" try not to put any lines in your vimrc that you don't understand :)
set nocompatible

filetype off                  "required

filetype plugin on            " required

inoremap <expr><TAB>  pumvisible() ? "\<C-n>" : "\<TAB>"

" Enable omni completion.
autocmd FileType css setlocal omnifunc=csscomplete#CompleteCSS
autocmd FileType html,markdown setlocal omnifunc=htmlcomplete#CompleteTags
autocmd FileType javascript setlocal omnifunc=javascriptcomplete#CompleteJS
autocmd FileType python setlocal omnifunc=pythoncomplete#Complete
autocmd FileType xml setlocal omnifunc=xmlcomplete#CompleteTags

" Enable heavy omni completion.
if !exists('g:neocomplete#sources#omni#input_patterns')
  let g:neocomplete#sources#omni#input_patterns = {}
endif


if empty(glob('~/.vim/autoload/plug.vim'))
  silent !curl -fLo ~/.vim/autoload/plug.vim --create-dirs
    \ https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim
  autocmd VimEnter * PlugInstall --sync | source $MYVIMRC
endif

call plug#begin()
Plug 'drewtempelmeyer/palenight.vim'
Plug 'jacoborus/tender.vim'
Plug 'dracula/vim', { 'as': 'dracula' }
Plug 'lervag/vimtex', { 'for': 'tex' }
Plug 'xuhdev/vim-latex-live-preview', { 'for': 'tex' }
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'
Plug 'ctrlpvim/ctrlp.vim'
Plug 'junegunn/fzf.vim'
Plug 'junegunn/fzf', { 'do': { -> fzf#install() } }
Plug 'justmao945/vim-clang'
Plug 'tpope/vim-surround'
Plug 'tpope/vim-fugitive'
Plug 'tpope/vim-repeat'
Plug 'gorodinskiy/vim-coloresque'
Plug 'Yggdroot/indentLine'
Plug 'cespare/vim-toml'
Plug 'preservim/nerdcommenter'
Plug 'preservim/nerdtree'
Plug 'Xuyuanp/nerdtree-git-plugin'
Plug 'mfukar/robotframework-vim'
Plug 'roxma/nvim-yarp'
Plug 'roxma/vim-hug-neovim-rpc'
Plug 'Shougo/deoplete.nvim', { 'do': ':UpdateRemotePlugins' }
Plug 'vim-syntastic/syntastic'
call plug#end()

let g:airline_powerline_fonts = 1
let g:Powerline_symbols = "fancy" " sth like this probably set as a default but won't hurt here
let g:airline_highlighting_cache = 1
let g:airline_section_z = airline#section#create(['windowswap', '%3p%% ', 'linenr', ' :%3v'])
let g:airline_theme = 'onedark'
let g:airline#extensions#tabline#enabled = 1
let g:airline#extensions#tabline#formatter = 'unique_tail'

let g:NERDTreeDirArrowExpandable = '▸'
let g:NERDTreeDirArrowCollapsible = '▾'

let g:gitgutter_terminal_reports_focus=0
"let g:gitgutter_async = 0
let g:gitgutter_sign_allow_clobber=0

let g:deoplete#enable_at_startup = 1
let g:deoplete#enable_ignore_case = 1

let g:livepreview_cursorhold_recompile = 0
let g:livepreview_previewer = 'xreader'
let g:livepreview_engine = 'pdflatex'
let g:vimtex_compiler_progname = 'pdflatex'
let g:tex_flavor = 'latex'

" Add spaces after comment delimiters by default
let g:NERDSpaceDelims = 1
" Allow commenting and inverting empty lines (useful when commenting a region)
let g:NERDCommentEmptyLines = 1
" Enable trimming of trailing whitespace when uncommenting
let g:NERDTrimTrailingWhitespace = 1
"""" Enable NERDCommenterToggle to check all selected lines is commented or not
"""let g:NERDToggleCheckAllLines = 1
" Add your own custom formats or override the defaults
let g:NERDCustomDelimiters = { 'vim': { 'left': '"','right': '' }, 'c': { 'left': '/**','right': '*/' } }

"let g:indentLine_setColors = 0
let g:indentLine_char_list = ['|', '¦', '┆', '┊', ':']

let g:syntastic_always_populate_loc_list = 0
let g:syntastic_auto_loc_list = 2
let g:syntastic_loc_list_height = 8
let g:syntastic_check_on_open = 1
let g:syntastic_check_on_wq = 0
let g:syntastic_aggregate_errors = 1
let g:syntastic_id_checkers = 1
let g:syntastic_error_symbol = "✗"
let g:syntastic_warning_symbol = "⚠"

set statusline+=%#warningmsg#
set statusline+=%{SyntasticStatuslineFlag()}
set statusline+=%*

let g:syntastic_javascript_checkers = ['jsl']
let g:syntastic_python_checkers = ['pylint']
let g:syntastic_c_compiler = 'clang'
let g:syntastic_c_check_header = 1
let g:syntastic_c_auto_refresh_includes = 1
let g:syntastic_cpp_check_header = 1
let g:syntastic_cpp_auto_refresh_includes = 1
let g:syntastic_c_cpplint_exec = 'cppcheck'

" change cursor shape for different editing modes, neovim does this by default
if !has('nvim')
    if exists('$TMUX')
        let &t_SI = "\<Esc>Ptmux;\<Esc>\e[2 q\<Esc>\\"
        let &t_SR = "\<Esc>Ptmux;\<Esc>\e[4 q\<Esc>\\"
        let &t_EI = "\<Esc>Ptmux;\<Esc>\e[2 q\<Esc>\\"
    else
        let &t_SI = "\e[6 q"
        let &t_SR = "\e[4 q"
        let &t_EI = "\e[2 q"
    endif
endif

command! W execute 'silent w !sudo tee % >/dev/null' | edit!
command! -nargs=* Make write | make! <args> | cwindow

" open a terminal in $PWD
nnoremap <silent> <Leader>tt :terminal<CR>
" toggle showing whitespace
noremap <F5> :set list!<CR>
" make shortcut
nnoremap <F4> :make!<cr>
" NERDTree
nmap <Leader>nt :NERDTreeToggle<CR>

vmap gb :<C-U>!git blame % -L<C-R>=line("'<") <CR>,<C-R>=line("'>") <CR><CR>
nmap gb :!git blame %<CR>

" ------ autocmd ------
" automatically open NERDTree if vim is open on it's own (argc() ==0 )
autocmd StdinReadPre * let s:std_in=1
autocmd VimEnter * if argc() == 0 && !exists("s:std_in") | NERDTree | endif

" Reload changes if file changed outside of vim requires autoread
augroup load_changed_file
    autocmd!
    autocmd FocusGained,BufEnter * if mode() !=? 'c' | checktime | endif
    autocmd FileChangedShellPost * echo "Changes loaded from source file"
augroup END

" when quitting a file, save the cursor position
augroup save_cursor_position
    autocmd!
    autocmd BufReadPost * call setpos(".", getpos("'\""))
augroup END

" when not running in a console or a terminal that doesn't support 256 colors
" enable cursorline in the currently active window and disable it in inactive ones
if $DISPLAY !=? '' && &t_Co == 256
    augroup cursorline
        autocmd!
        autocmd VimEnter,WinEnter,BufWinEnter * setlocal cursorline
        autocmd WinLeave * setlocal nocursorline
    augroup END
endif

" when entering insert mode, relative line
" numbers are turned off, leaving absolute line numbers turned on
augroup numbertoggle
  autocmd!
  autocmd BufEnter,FocusGained,InsertLeave * set number relativenumber
  autocmd BufLeave,FocusLost,InsertEnter   * set number norelativenumber
augroup END

hi clear CursorLine
augroup CLClear
    autocmd! ColorScheme * hi clear CursorLine
augroup END

hi CursorLineNR cterm=bold
augroup CLNRSet
    set cursorline
    autocmd! ColorScheme * hi CursorLineNR cterm=bold
augroup END

" define indent-based folding, after loading a file switch to manual folding
augroup vimrc
  au BufReadPre * setlocal foldmethod=indent
  au BufWinEnter * if &fdm == 'indent' | setlocal foldmethod=manual | endif
augroup END

""" autosave and load views
au BufWinLeave ?* mkview
au BufWinEnter ?* silent loadview

au FileType xml setlocal shiftwidth=2 tabstop=2
au FileType html setlocal shiftwidth=2 tabstop=2

au BufNewFile,BufRead *.js
    \ setlocal shiftwidth=2 tabstop=2 softtabstop=2 expandtab autoindent fileformat=unix

au FileType c setl ofu=ccomplete#CompleteCpp
au BufNewFile,BufRead *.py,*.pyw,*.pyx,?akefil*
    \ setlocal tabstop=4 shiftwidth=4 noexpandtab autoindent
    \ textwidth=79 fileformat=unix
" Linux kernel style tabs
au BufNewFile,BufRead *.c,*.h,*.cpp
    \ setlocal tabstop=8 shiftwidth=8 softtabstop=8 noexpandtab autoindent
    \ textwidth=79 fileformat=unix

" ------ adv maps ------

" strip trailing whitespace, ss (strip space)
nnoremap <silent> <Leader>ss
    \ :let b:_p = getpos(".") <Bar>
    \  let b:_s = (@/ != '') ? @/ : '' <Bar>
    \  %s/\s\+$//e <Bar>
    \  let @/ = b:_s <Bar>
    \  nohlsearch <Bar>
    \  unlet b:_s <Bar>
    \  call setpos('.', b:_p) <Bar>
    \  unlet b:_p <CR>

match Todo /\s\+$/


set softtabstop=4
set tabstop=4
set shiftwidth=4
set expandtab
set smarttab

set errorformat+=%.%#PHP:\ %m\ \(in\ %f\ on\ line\ %l\)%.%#,
  \%E%[0-9]%#.%m:%f?rev=%.%##L%l\ %.%#,%C%.%#

autocmd BufNewFile,BufRead svn-commit.*tmp :0r $SVN_COMMIT_TEMPLATE

set tags=.tags;

set incsearch                 " incrimental search
set hlsearch                  " highlighting when searching

filetype indent plugin on
set autoindent
set backspace=2

set splitbelow splitright     " splits open at bottom and right
set lazyredraw                " don't redraw while executing macros (good performance config)

set listchars=trail:•,tab:>-
set list                      " show/hide tabs and EOL chars (hidden characters)
set confirm                   " ask confirmation like save before quit.
set wildmenu                  " Tab completion menu when using command mode
set scrolloff=3               " scroll offset, min lines above/below cursor
"set scrolljump=5             " jump 5 lines when running out of the screen - NO
set sidescroll=10             " minimum columns to scroll horizontally
set showcmd                   " show command status
set showmatch                 " flashes matching parenthese when cursor over the other one
set mat=2                     " how many tenths of a second to blink when matching brackets
set noshowmode                " show editing mode in status (-- INSERT --)
set ruler                     " show cursor position
set errorbells                " bells in terminal
set undolevels=1000           " number of undos stored
set viminfo='50,"50           " '=marks for x files, "=registers for x files

set nofoldenable
"set foldmethod=indent         " indent based folding

set encoding=utf-8            " important for powerline besides others
set ignorecase                " searches are case insensitive...
set smartcase                 " ... unless they contain at least one capital letter
set noscrollbind
set updatetime=1000

syntax enable
colo dracula                 " new fav highlighting
set mouse=a                  " enable mouse in n,v,i,c,h modes

set laststatus=2             " show powerline status bar
set t_Co=256