init.vim.minimal

set nocompatible
filetype plugin indent on
syntax on

" use case-smart searching
set ignorecase
set smartcase

" set line numbers (and relative)
set number
set relativenumber

" eliminate delay from pressing ESC
set ttimeoutlen=0
set timeoutlen=0

" all items matching search are highlighted
set incsearch
set hlsearch
" clear highlighted items with space
nnoremap <silent> <Space> :nohlsearch<Bar>:echo<CR>

" cmdline history
set history=1000

" allow backspace in insert mode
set backspace=indent,eol,start

" buffers can exist in the background
set hidden

" set window title
set title

" highline the line the cursor is on
set cursorline

" intelligent indentation
set autoindent
set smartindent
" show existing tab with 2 spaces width
set tabstop=4
" when indenting with '>'
set shiftwidth=4
" on pressing tab, insert 4 spaces
set expandtab


call plug#begin('~/.config/nvim/plugged')
" colorscheme
Plug 'morhetz/gruvbox'
" commenting
Plug 'scrooloose/nerdcommenter'
" auto pairs
Plug 'jiangmiao/auto-pairs'
" surroundings
Plug 'tpope/vim-surround'
" fuzzy search
Plug 'ctrlpvim/ctrlp.vim'
" display changes in git:
Plug 'airblade/vim-gitgutter'
" lighweight powerline
Plug 'itchyny/lightline.vim'
" icons
Plug 'ryanoasis/vim-devicons'
" show indents
Plug 'Yggdroot/indentLine'
call plug#end()


" auto install plugins
autocmd VimEnter *
  \  if len(filter(values(g:plugs), '!isdirectory(v:val.dir)'))
  \|   PlugInstall --sync | q
  \| endif

" enable syntax highlighting
if !exists("g:syntax_on")
    syntax enable
endif

" tab based completion
inoremap <expr><Tab>  pumvisible() ? "\<C-n>" : "\<Tab>"

" colorscheme & settings
set termguicolors
set t_8f=^[[38;2;%lu;%lu;%lum
set t_8b=^[[48;2;%lu;%lu;%lum
colorscheme gruvbox
set background=dark
let g:gruvbox_contrast_dark = 'hard'

" use system clipboard
set clipboard^=unnamed,unnamedplus

" enable mouse support
set mouse=a

" Automatically resize splits when resizing window
autocmd VimResized * wincmd =

" Keep 10 lines below and above the cursor
set scrolloff=10

" Navigate in insert mode to start/end of line
inoremap <C-a> <C-o>0
inoremap <C-e> <C-o>$

" lightline settings
let g:lightline = {
                \ 'colorscheme': 'gruvbox',
                \ 'active': {
                \   'left': [ [ 'mode', 'paste' ], ['relativepath'] ]
                \ },
    \ 'tabline': {
    \   'left': [ ['buffers'] ],
    \   'right': [ ['bufnum'] ]
    \ },
    \ 'component_expand': {
    \   'buffers': 'lightline#bufferline#buffers'
    \ },
    \ 'component_type': {
    \   'buffers': 'tabsel'
    \ },
                \ 'component_function': {
                \   'fugitive': 'LightlineFugitive',
                \   'filename': 'LightlineFilename',
                \ },
    \ 'separator': { 'left': '', 'right': '' },
    \ 'subseparator': { 'left': '', 'right': '' }
                \ }

" Cycle through buffers with tab
:nnoremap <Tab> :bnext<CR>
:nnoremap <S-Tab> :bprevious<CR>

" Close buffer without closing split using Bd
command Bd bp|bd #

" Use ripgrep for cltrp
let g:ctrlp_user_command = 'rg %s --files --color=never --glob ""'
let g:ctrlp_use_caching = 0

" Enable spell checking for text files
autocmd FileType text,markdown,html,tex set spell