"inital, more techinal settings

"this sets what sort of folding method to use.
let foldtype="basicindent" 
set lazyredraw
set autoread
set history=5000
filetype plugin on

"user interface stuff
    "disables the autocommenting stuff.
        set formatoptions-=o
        set formatoptions-=r
        set formatoptions-=c

    "disable text wrapping via carriage returns, should only wrap visually 
        set textwidth=0
        set wrapmargin=0
        set wrap
        set linebreak
        set breakindent

    "adds a ruler to the side of the screen
    set number

    "makes the ruler show how many lines away a given line is from your cursour
    "set relativenumber

    "displays the cooridnates of your cursour in the statusbar
    set ruler

    "scrollofff sets the number of lines from the top or bottom of the screen before vim will scroll. sidescroll off does the same thing for the sides of the window
    set scrolloff=10
    set sidescrolloff=10

    "better command line completion
    set wildmenu

    "ignore cases in search unless you have a capital letter in the search
    set ignorecase
    set smartcase

    "this allows puting the cursor just after the last characher fo the line.
    "set virtualedit=onemore

    "show unfinished commands on the RIGHT side of the statusbar. yes, it is working.
    set showcmd 

    "make regex a bit easier to type
        set magic
        set hidden

    "always display status line
    set laststatus=2

    "keycodes time out fast, mappings have a bit longer
    set timeout timeoutlen=1000 ttimeout ttimeoutlen=10

    "make it so the session feature wont overwrite our vimrc if the vimrc has newer bindings than this a session.
    set sessionoptions-=options 

"tab stuff
    set tabstop=4
    set shiftwidth=4
    set expandtab
    set autoindent

    "if vim sees 4 whitespaces in a row, backspace will delete all of them at once, as if they were real tabs
    set smarttab

"highlighting/colour stuff
    "sets the colorscheme. to get a list of the avalible colors, do :colorscheme <Space> <C-d>
    colorscheme ron 

    syntax enable

    "highlights trailing spaces
    highlight extra_white_space ctermbg=red guibg=red
    match extra_white_space /\s+$/

    "highlight search results
    set hlsearch

    "search as you type
    set incsearch

    "<leader> L clears the search highlighting
    noremap <leader>l :nohls<Enter> 

"folding stuff TODO: implement other folding methods.
    "give a bit of margin space for fold number
    set foldcolumn=3

    set foldenable

    "set the minimum number of screen lines for a fold to be closable.
    set foldminlines=3

    "spacebar opens or closes a fold in normal mode
    nmap <Space> za

    "insert folding: really baisic fold method. eventually I may make some custom folds, but with the foldtext fixed a bit, this shouldnt annoy me too mutch.
    if foldtype ==# "basicindent"
        "make vim fold automatically based on indentation.
        set foldmethod=indent
        "set the fold text for this method, in most cases, the line just above our fold is what we want, so we wont put any text into it. just level and linecount.
        function! Minimal_foldtext()
            let lines_count = v:foldend - v:foldstart + 1
            let lines_count_text = '| ' . printf("%10s", lines_count . ' lines') . ' |'
            let line_level_text = '| '.printf("%5s", 'level '.v:foldlevel).' |' 
            let foldchar = matchstr(&fillchars, 'fold:\zs.')
            let foldtextstart = lines_count_text 
            let foldtextend = line_level_text . repeat(foldchar, 8)
            let foldtextlength = strlen(foldtextstart . foldtextend) + &foldcolumn 
            return foldtextstart . repeat(foldchar, winwidth(0)-foldtextlength) . foldtextend
        endfunction
        set foldtext=Minimal_foldtext()
    endif

"usefull keybinds
    "spell checking
        "toggle spell checking
        map <leader>ss :setlocal spell!<Enter>

       " "shortucts using leader
       " noremap <leader>sn ]s
       " noremap <leader>sp [s
       " noremap <leader>s? z=

    "normal mode keybinds
        "control o: insert line below
        nmap <C-o> o<esc> 

        "alt=a: select all
        nmap <silent> <A-a> :keepjumps normal ggVG<Enter> 

        "navigating splits: Control+hjkl will move from split to split
            nmap <C-h> <C-w>h
            nmap <C-j> <C-w>j
            nmap <C-k> <C-w>k
            nmap <C-l> <C-w>l

    "command mode keybinds
        "w!! writes using sudo
        cnoremap w!! w !sudo tee % >/dev/null