" Vundle
filetype off
" Set the runtime path to include Vundle and initialize
set rtp+=~/.vim/bundle/Vundle.vim
" Download plug-ins to the ~/.vim/plugged/ directory
call vundle#begin('~/.vim/plugged')
" Let Vundle manage Vundle; muss immer der erste Eintrag sein
Plugin 'VundleVim/Vundle.vim'
" project drawer
Plugin 'preservim/nerdtree'
" ansible integration
Plugin 'pearofducks/ansible-vim'
" omnicompletion während dem tippen
Plugin 'vim-scripts/AutoComplPop'
" statusline
Plugin 'itchyny/lightline.vim'
" languagepack
Plugin 'sheerun/vim-polyglot'
" highlight fuer movement mit tTfFwW
Plugin 'unblevable/quick-scope'
" fuzzy finder
Plugin 'ctrlpvim/ctrlp.vim'
" git integration G:
Plugin 'tpope/vim-fugitive'
" ausrichten von text
Plugin 'junegunn/vim-easy-align'
" buffer in tabline
Plugin 'ap/vim-buftabline'
" start screen
Plugin 'mhinz/vim-startify'
" bracketed paste/ kein set-paste mehr
Plugin 'ConradIrwin/vim-bracketed-paste'
" Undotree
Plugin 'mbbill/undotree'
" highlight yanked text
Plugin 'machakann/vim-highlightedyank'
call vundle#end()

let mapleader = ","

" ### allgemeine Optionen
" indentation
" https://vim.fandom.com/wiki/Indenting_source_code
set expandtab
set shiftwidth=2
set softtabstop=2

" ### Suche
" While typing a search command, show immediately where the so far typed pattern matches.
set incsearch

" When there is a previous search pattern, highlight all its matches.
set hlsearch

" Ignore case in search patterns.
set ignorecase

" Override the 'ignorecase' option if the search pattern contains upper case characters.
set smartcase

" show status-bar
set laststatus=2
" Show line numbers.
set number

" ### Kommandovervollständigung
" https://www.reddit.com/r/vim/comments/oo9gms/any_way_to_get_vim_to_not_defaulting_to_the_first/h5wygix/?context=8&depth=9
set wildmode=longest,list,full
set wildmenu
set wildignore=*.o,*~

" ### Rest
" Show (partial) command in status line.
set showcmd
set virtualedit=onemore
set encoding=UTF-8
set visualbell
set ruler
set undolevels=1000
set backspace=indent,eol,start
" ermögliche das bearbeitete buffer in der hintergrund können
set hidden
" verhindert zeilenumbrüche
set nowrap
" https://vim.fandom.com/wiki/Automatic_word_wrapping
set wrap linebreak
" Enable syntax highlighting
syntax on
" aktiviere maus
set mouse=a
" vergrößere/verkleinere splits mit der maus
" https://vi.stackexchange.com/questions/514/how-do-i-change-the-current-splits-width-and-height
:set ttymouse=xterm2
" https://unix.stackexchange.com/questions/12535/how-to-copy-text-from-vim-to-an-external-program
set clipboard=unnamedplus
" zeige "matching" klammer usw.
set showmatch

" ### Plugins
" ### ripgrep und ctrlp
if executable('rg')
      let g:ctrlp_user_command = 'rg %s --files --hidden --color=never --glob ""'
else
      let g:ctrlp_user_command = 'find %s -type f'
endif
" ignore files
" https://github.com/ctrlpvim/ctrlp.vim
set wildignore+=*/tmp/*,*.so,*.swp,*.zip     " MacOSX/Linux
set wildignore+=*\\tmp\\*,*.swp,*.zip,*.exe  " Windows
let g:ctrlp_custom_ignore = '\v[\/]\.(git|hg|svn)$'
let g:ctrlp_map = ''

" ### lightline/statusline
" blende insert/visual/... in der commandline aus, steht in lightline
set noshowmode
set laststatus=2
let g:lightline = {
      \ 'active': {
      \   'left': [ [ 'mode', 'paste' ],
      \             [ 'gitbranch', 'readonly', 'filename', 'modified' ] ]
      \ },
      \ 'component_function': {
      \   'gitbranch': 'FugitiveHead'
      \ },
      \ }

" ### vim startify
" returns all modified files of the current git repo
" `2>/dev/null` makes the command fail quietly, so that when we are not
" in a git repo, the list will be empty
function! s:gitmodified()
    let files = systemlist('git ls-files -m 2>/dev/null')
    return map(files, "{'line': v:val, 'path': v:val}")
endfunction

" same as above, but show untracked files, honouring .gitignore
function! s:gituntracked()
    let files = systemlist('git ls-files -o --exclude-standard 2>/dev/null')
    return map(files, "{'line': v:val, 'path': v:val}")
endfunction

let g:startify_lists = [
        \ { 'type': 'files',     'header': ['   mru']            },
        \ { 'type': 'dir',       'header': ['   mru '. getcwd()] },
        \ { 'type': 'sessions',  'header': ['   sessions']       },
        \ { 'type': 'bookmarks', 'header': ['   bookmarks']      },
        \ { 'type': function('s:gitmodified'),  'header': ['   git modified']},
        \ { 'type': function('s:gituntracked'), 'header': ['   git untracked']},
        \ { 'type': 'commands',  'header': ['   commands']       },
        \ ]

" ### quick-scope
" trigger a highlight in the appropriate direction only when pressing these keys:
let g:qs_highlight_on_keys = ['f', 'F', 't', 'T']

" wrap words with ``
" https://stackoverflow.com/questions/24555192/command-for-putting-backticks-around-the-current-word
nnoremap <F8> ciw``<C-r>"``<Esc>
xnoremap <F8> c``<C-r>"``<Esc>

" ### Keybindings
" deaktiviere Ex-Mode keybinding
nnoremap Q <Nop>

" Ctrl+S zum speichern
nnoremap <C-s> :w<CR>

" Navigate tabs
nnoremap <C-j> :bnext<CR>
nnoremap <C-k> :bprev<CR>

" strg+f sucht fuzzy nach dateien
nnoremap  <C-f> :CtrlP<CR>

" format paragraphs as markdown table
nnoremap <Leader>mm Vap:EasyAlign *\|<cr><esc>
nnoremap <F7> Vap:EasyAlign *\|<cr><esc>

" lasse Y wie C oder D funktionieren
nmap Y y$

" Toggle NERDTree
nnoremap <F2> :call ToggleNERDTreeFind()<CR>
"
" toddle Undotree
nnoremap <F6> :UndotreeToggle<CR>

" U als un-undo und nicht als Großschreibung
nnoremap U :redo<Enter>

" ### Abbreviations
iabbrev ncicht nicht
iabbrev nciht nicht

" linenumbers
nnoremap <Leader>z :set nonumber! <CR>

" einzelne Aufräumfunktionen, bei F9 werden alle gecalled
" trailing whitespaces werden automatisch beim speichern entfernt
function! Whitespaces_trailing()
    " Remove trailing whitespace
    %s/\s\+$//e
endfunction
function! Whitespaces_consecutive()
    " Replace consecutive spaces between words with a single space (only for .md files)
    if &filetype == "markdown"
        %s/\(\w\)\s\+\(\w\)/\1 \2/g
    endif
endfunction
function! Whitespaces_lines()
    " Run silent command to remove multiple consecutive empty lines (only for .md files)
    if &filetype == "markdown"
        silent %!cat -s
    endif
endfunction
function! Whitespaces_all()
  call Whitespaces_trailing()
  call Whitespaces_consecutive()
  call Whitespaces_lines()
endfunction
" Map F9 to execute the custom function
nnoremap <F9> :call Whitespaces_all()<CR>
" entferne trailing whitespaces beim speichern
autocmd BufWritePre * :call Whitespaces_trailing()

" Exit Vim if NERDTree is the only window remaining in the only tab.
autocmd BufEnter * if tabpagenr('$') == 1 && winnr('$') == 1 && exists('b:NERDTree') && b:NERDTree.isTabTree() | quit | endif
" NERDTree - show hidden files
let NERDTreeShowHidden=1

" NERDTREE - Find file or close
" https://stackoverflow.com/questions/14964020/is-it-possible-to-configure-behaviour-of-nerdtreetoggle-to-use-nerdtreefind-When
function! ToggleNERDTreeFind()
    if g:NERDTree.IsOpen()
        execute ':NERDTreeClose'
    else
        execute ':NERDTreeFind'
    endif
endfunction

" yaml einrückung
autocmd FileType yaml setlocal ai ts=2 sw=2 et
autocmd FileType yml setlocal ai ts=2 sw=2 et