" Keybinds ##########################################################################
" Disable arrow keys
noremap  <Up> ""
noremap! <Up> <Esc>
noremap  <Down> ""
noremap! <Down> <Esc>
noremap  <Left> ""
noremap! <Left> <Esc>
noremap  <Right> ""
noremap! <Right> <Esc>
" Stop highlighting search result when pressing Return
nnoremap <silent> <CR> :nohlsearch<CR><CR>

" Settings ##########################################################################
" hybrid linenumbers
set number relativenumber
" no timeout when exiting insert-mode (see https://www.johnhawthorn.com/2012/09/vi-escape-delays/)
set timeoutlen=1000 ttimeoutlen=0
" smart case insensitive search (insens: /copy /Copy\c; sens: /Copy /copy\C)
set ignorecase smartcase
" Tab size
set tabstop=4
" Shift the same amount as tabstop
set shiftwidth=0
" Highlight current line
set cursorline
" Automatically add leading comment (when pressing o/O or enter in Insert)
set formatoptions+=cro
" see :help persistent-undo
set undofile

" Aesthetics #######################################################################
" use onedark as theme for syntax highlighting
syntax on
colorscheme onedark
" Use 24-bit (true-color) mode 
if (has("termguicolors"))
	set termguicolors
endif

" get transparent background of the terminal back
" (at least in nvim, i can't get it to work in vanilla)
if (has('nvim'))
	highlight Normal guibg=NONE
	highlight NonText guibg=NONE
endif

" zshOption is a huge regex that leads to massive lags when scrolling
" Be sure to disable it after activating syntax highlighting
autocmd filetype zsh syntax clear zshOption

" change cursor shape depending on mode
if (has('nvim'))
	" reset when exiting
	autocmd VimLeave * set guicursor=a:ver25
else
	" https://vim.fandom.com/wiki/Change_cursor_shape_in_different_modes
	" start insert mode - vertical bar
	let &t_SI = "\<Esc>[5 q"
	" start replace mode - horizontal/underline bar
	let &t_SR = "\<Esc>[3 q"
	" end insert or replace mode - block cursor
	let &t_EI = "\<Esc>[1 q"

	" Set when entering
	autocmd VimEnter * silent !echo -ne "\e[2 q" 
	" Reset when exiting
	" Finally found out how to do that by looking at:
	" https://github.com/jszakmeister/vim-togglecursor/blob/master/plugin/togglecursor.vim
	autocmd VimLeave * let &t_te = "\<Esc>[5 q" . &t_te
endif