set encoding=utf8
scriptencoding utf8
lang en_US.UTF-8

" ----------------------
" --- PLUGINS
" ----------------------

call plug#begin()
Plug 'junegunn/fzf', { 'do': { -> fzf#install() } }
Plug 'junegunn/fzf.vim'
Plug 'jremmen/vim-ripgrep'
Plug 'tpope/vim-commentary'
Plug 'tpope/vim-surround'
Plug 'fatih/vim-go', { 'do': ':GoUpdateBinaries' }
Plug 'iamcco/markdown-preview.nvim', { 'do': { -> mkdp#util#install() }, 'for': ['markdown', 'vim-plug']}
Plug 'SirVer/ultisnips'
call plug#end()

" ----------------------
" --- GENERAL
" ----------------------

" use space as <leader> key
let mapleader=" "

set nu
set relativenumber

" syntax highlighting
syntax on
filetype plugin indent on

" vertical bar in insert mode, block in normal mode
let &t_SI = "\e[6 q"
let &t_EI = "\e[2 q"

set backspace=indent,eol,start

" indentation
set tabstop=4
set softtabstop=4
set shiftwidth=4
set expandtab
set smartindent
set autoindent

" copy paste clipboard
set clipboard=unnamed

" highlight current line
set cursorline

" searching
set incsearch
set ignorecase
set smartcase
set nohlsearch

" display title of current file in terminal title bar
set title

" allow hidden buffers
set hidden

" dont wrap long lines
set nowrap

" disable swaps and backups
set noswapfile
set nobackup
set nowritebackup

" start scrolling when 8 lines left
set scrolloff=8

" show sign column
set signcolumn=yes

" show the colorcolumn
set colorcolumn=80

" :sp and :vsp should split below and to the right
set splitbelow
set splitright

" avoid delays when typing
set updatetime=50

" enable mouse support
set mouse=a

" shows a more advanced command-line completion menu
set wildmenu

" Modifies the auto-complete menu. See :h completeopt
set completeopt="noinsert,menuone,noselect"

" show whitespace characters
set list lcs=tab:>\ ,trail:~,precedes:<,space:\ ,nbsp:×

" ---------------------------------
" --- STATUSLINE
" --------------------------------

function! GitBranch()
  return system("git rev-parse --abbrev-ref HEAD 2>/dev/null | tr -d '\n'")
endfunction

function! StatuslineGit()
  let l:branchname = GitBranch()
  return strlen(l:branchname) > 0?'  '.l:branchname.' ':''
endfunction

set laststatus=2
set statusline=
set statusline+=%#PmenuSel#
set statusline+=%{StatuslineGit()}
set statusline+=%#CursorColumn#
set statusline+=\ %f
set statusline+=%m\ 
set statusline+=%=
set statusline+=\ %y
set statusline+=\ %p%%
set statusline+=\ %l:%c
set statusline+=\ 

" ---------------------------------
" --- AUTOCOMMANDS
" --------------------------------

" set correct filetype for terraform files
autocmd BufRead,BufNewFile *.tf,*.tfvars set filetype=terraform

" set correct comment string for powershell files
autocmd FileType ps1 setlocal commentstring=#\ %s

" reload file if changes from outside
autocmd FocusGained,BufEnter * :checktime

" ---------------------------------
" --- KEYBINDINGS
" --------------------------------

" open file explorer
nnoremap <leader>pv :Ex<CR>

" copy the whole file and stay where you are
nnoremap <leader>yy ggVGy<C-o>

" move visual line(s) up and down
vnoremap J :m '>+1<CR>gv=gv
vnoremap K :m '<-2<CR>gv=gv

" move line up/down
nnoremap <S-Up> :m-2<CR>
nnoremap <S-Down> :m+1<CR>

" keeps search in the middle (n=next, N=previous)
nnoremap n nzzzv
nnoremap N Nzzzv

" keeps half page up/down in the middle
nnoremap <C-d> <C-d>zz
nnoremap <C-u> <C-u>zz

" delete highlighted word/line into void and keeps the pasted value
" in default registry so you can paste many times
xnoremap <leader>p "_dp

" delete to void
nnoremap <leader>d "_d
vnoremap <leader>d "_d

" fzf
nnoremap <C-f> :GFiles<CR>
nnoremap <leader>ff :Files<CR>
nnoremap <leader>fg :Ag<CR>
nnoremap <leader>ffg :Rg
nnoremap <leader>b :Buffers

" avoid human error
cabbr W w
cabbr Wq wq
cabbr Q q
cabbr E e

" ----------------------
" --- SNIPPETS
" ----------------------

let g:UltiSnipsSnippetDirectories=[$HOME.'/.local/snippets']

" ----------------------
" --- THEME
" ----------------------

set background=dark
colorscheme habamax

" highlight extra whitespace
highlight ExtraWhitespace ctermbg=red guibg=red
autocmd BufWinEnter * match ExtraWhitespace /\s\+$/
autocmd InsertEnter * match ExtraWhitespace /\s\+\%#\@<!$/
autocmd InsertLeave * match ExtraWhitespace /\s\+$/
autocmd BufWinLeave * call clearmatches()