""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" x1phosura's .vimrc                                                         "
"                                                                            "
" This is my basic .vimrc. I'm not a power user, but I like settings.        "
"                                                                            "
" note to self: vim navigates logical lines. To navigate a long paragraph up "
" and down when the paragraph is all on one line, use gj and gk.             "
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""

" enable truecolors if available
"if has('nvim') || has('termguicolors')
"  set termguicolors
"endif

" TODO: check _if_ mypeachpuff exists, if not, use peachpuff
set background=dark
"colorscheme peachpuff
colorscheme x1ph-off  " TODO: check _if_ x1ph-off exists, if not, use default
"colorscheme default
syntax on

set guicursor=                      "force using block cursor (for neovim)
set hlsearch                " highlights search targets
set mouse=                  " disables mouse support, re-enable by 'set mouse=a'
set colorcolumn=80          " creates vertical line at column 80
set cursorline              " underlines currently selected line
" below sets CursorLine colors (233 assumes 256-bit color, more specific black)
hi CursorLine ctermbg=235
hi ColorColumn ctermbg=235

"set number relativenumber   " use "hybrid" numbering (both number and relative)
set number                          " note to self: tun off with 'set nonumber'
set ruler                           " ???

set shortmess+=I                    " Don't show splash screen

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""" statusline

set noshowmode                      " don't show vim mode below statusline
set laststatus=2                    " set 'laststatus' bar (neovim default)

let g:currentmode={ 'n' : 'Normal ', 'no' : 'N-Operator Pending ',
                    \ 'v' : 'Visual ', 'V' : 'V-Line ', '^V' : 'V-Block ',
                    \ 's' : 'Select ', 'S': 'S-Line ', '^S' : 'S-Block ',
                    \ 'i' : 'Insert ', 'R' : 'Replace ', 'Rv' : 'V-Replace ',
                    \ 'c' : 'Command ', 'cv' : 'Vim Ex ', 'ce' : 'Ex ',
                    \ 'r' : 'Prompt ', 'rm' : 'More ', 'r?' : 'Confirm ',
                    \ '!' : 'Shell ', 't' : 'Terminal '}

" get the current mode for display in vim statusline
function! ModeCurrent() abort
    let l:modecurrent = mode()
    " use get() -> fails safely, since ^V doesn't seem to register
    " 3rd arg is used when return of mode() == 0, which is case with ^V
    " thus, ^V fails -> returns 0 -> replaced with 'V Block'
    let l:modelist = toupper(get(g:currentmode, l:modecurrent, 'V-Block '))
    let l:current_status_mode = l:modelist
    return l:current_status_mode
endfunction

" black on purple
highlight StatusHighlight term=bold ctermfg=0 ctermbg=13

" start building statusline
set statusline=%#StatusHighlight#   " change background color to purple
set statusline+=\ %{ModeCurrent()}  " put current mode here
set statusline+=%#ColorColumn#\     " change background color to ColorColumn
set statusline+=\ \[%n\]            " show which vim buffer
"set statusline+=%*                  " switch back to normal statusline

set statusline+=\ %.30f             " filename (truncate to 30 chars)
set statusline+=\ %m                " modified flag

set statusline+=%=                  " format right side of statusline
set statusline+=\ %{&ff},       " unix or dos
set statusline+=%{&fileencoding?&fileencoding:&encoding}\  " File encoding
"set statusline+=\ %y                " show filetype
set statusline+=%#StatusHighlight#  " highlight purple
set statusline+=\ %l/%L:            " current line/Total lines
set statusline+=%c%V                " column number(-virtual column number)
"set statusline+=\ (%p%%)            " percentage
set statusline+=%*

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let g:netrw_liststyle = 3           " change netrw file manager view style

setlocal ff=unix        " Changes file format to unix (changes line endings)

" Indentation settings according to personal preference, including
" settings for using 4 spaces instead of tabs.
" Do not change 'tabstop' from its default value of 8 with this setup.
set shiftwidth=4        " TODO: explain
set softtabstop=4       " TODO: explain
set expandtab  " can re-enable typing tabs with 'set noexpandtab' or 'set noet'
set autoindent          " should automatically indent

set noeol  " make vim _not_ automatically append newline to files after exiting

" makes words not get cut off and split weirdly at end of border
setlocal linebreak

" autocmd stuff (note: 'au' == 'autocmd')
" includes language/filetype-specific settings
if has("autocmd")
    " applies columns rule even when vim is resized (caused by terminal resizing)
    "au VimResized * | set columns=84

    " set markdown notes to "wordwrap" kinda
    "au BufRead,BufNewFile *.md setlocal columns=84

    " turns off tabs-to-spaces conversion for makefiles
    au FileType make setlocal shiftwidth=8 softtabstop=8 tabstop=8 noexpandtab

    au FileType c,go setlocal shiftwidth=8 softtabstop=8 tabstop=8 noexpandtab
    au FileType sh setlocal shiftwidth=4 softtabstop=4 tabstop=4 expandtab

    au BufRead,BufNewFile *.rkt,*.rktl set filetype=scheme
    au FileType scheme setlocal equalprg=scmindent.rkt " not sure if works
endif

let c_syntax_for_h=1  " assume header files are going to be C, not C++

" maps SHIFT-TAB to insert a real live tab character (in INSERT mode)
:inoremap <S-Tab> <C-V><Tab>

" double-<Esc> clears search highlights
"nnoremap <silent> <Esc><Esc> <Esc>:nohlsearch<CR><Esc>

" makes vim scroll fast (unnecesary for neovim)
set ttyfast