.vimrc

set nocompatible              " be iMproved, required
filetype off                  " required

" set the runtime path to include Vundle and initialize
set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()
" alternatively, pass a path where Vundle should install plugins
"call vundle#begin('~/some/path/here')

" let Vundle manage Vundle, required
Plugin 'gmarik/Vundle.vim'

Plugin 'Valloric/YouCompleteMe' "https://github.com/Valloric/YouCompleteMe
Plugin 'jiangmiao/auto-pairs' "https://github.com/jiangmiao/auto-pairs
Plugin 'Yggdroot/indentLine' "https://github.com/Yggdroot/indentLine
Plugin 'scrooloose/nerdcommenter' "https://github.com/scrooloose/nerdcommenter
Plugin 'scrooloose/nerdtree' "https://github.com/scrooloose/nerdtree
Plugin 'scrooloose/syntastic' "https://github.com/scrooloose/syntastic
" Requires 'exuberant-ctags'
Plugin 'majutsushi/tagbar' "https://github.com/majutsushi/tagbar
Plugin 'bling/vim-airline' "https://github.com/bling/vim-airline
Plugin 'vim-airline/vim-airline-themes' "https://github.com/vim-airline/vim-airline-themes
Plugin 'flazz/vim-colorschemes' "https://github.com/flazz/vim-colorschemes
Plugin 'joshdick/onedark.vim' "updated One.Dark colorscheme
Plugin 'sheerun/vim-polyglot' "Better syntax highlighting
Plugin 'tpope/vim-fugitive' "https://github.com/tpope/vim-fugitive
Plugin 'techlivezheng/vim-plugin-minibufexpl' "https://github.com/techlivezheng/vim-plugin-minibufexpl
" Doesn't support Python 3
"Plugin 'taketwo/vim-ros' "https://github.com/taketwo/vim-ros
Plugin 'mhinz/vim-startify' "https://github.com/mhinz/vim-startify
" Requires 'clang-format-*'
Plugin 'rhysd/vim-clang-format' "https://github.com/rhysd/vim-clang-format

Plugin 'ctrlpvim/ctrlp.vim'
Plugin 'nixprime/cpsm' " denite/ctrlp dep

" Denite/Unite stuff, not used atm.
"Plugin 'Shougo/unite.vim' "https://github.com/Shougo/unite.vim
"Plugin 'Shougo/denite.nvim' "https://github.com/Shougo/denite.nvim
"Plugin 'Shougo/vimproc.vim' "https://github.com/Shougo/vimproc.vim, dep of unite
"Plugin 'Shougo/neomru.vim' "https://github.com/Shougo/neomru.vim (unite dep)

Plugin 'LaTeX-Box-Team/LaTeX-Box'

" All of your Plugins must be added before the following line
call vundle#end()            " required
" To ignore plugin indent changes, instead use:
"filetype plugin on
"
" Brief help
" :PluginList       - lists configured plugins
" :PluginInstall    - installs plugins; append `!` to update or just :PluginUpdate
" :PluginSearch foo - searches for foo; append `!` to refresh local cache
" :PluginClean      - confirms removal of unused plugins; append `!` to auto-approve removal
"
" see :h vundle for more details or wiki for FAQ
" Put your non-Plugin stuff after this line

" Enable syntax highlighting
syntax on
syntax enable

" Better command-line completion
set wildmode=longest,list
set wildmenu

set fileformat=unix " file mode is unix
set fileformats=unix,dos,mac " detects unix, dos, mac file formats in that order
set viminfo='20,\"500 " remember copy registers after quitting in the .viminfo
" file -- 20 jump links, regs up to 500 lines'

set hidden " allows making buffers hidden even with unsaved changes
set history=1000 " remember more commands and search history
set undolevels=1000 " use many levels of undo

" Instead of failing a command because of unsaved changes, instead raise a
" dialogue asking if you wish to save changed files.
set confirm

" Enable use of the mouse for all modes
set mouse=a
set mousemodel=popup_setpos " Right-click on selection should bring up a menu

" Display line numbers on the left
set number

" Filetype Indentation Mode
filetype plugin indent on

" CLIPBOARD SETTINGS
if has('unnamedplus')
  " By default, Vim will not use the system clipboard when yanking/pasting to
  " the default register. This option makes Vim use the system default
  " clipboard.
  " Note that on X11, there are _two_ system clipboards: the "standard" one, and
  " the selection/mouse-middle-click one. Vim sees the standard one as register
  " '+' (and this option makes Vim use it by default) and the selection one as
  " '*'.
  " See :h 'clipboard' for details.
  set clipboard=unnamedplus,unnamed
else
  " Vim now also uses the selection system clipboard for default yank/paste.
  set clipboard+=unnamed
endif

" Unicode support (taken from http://vim.wikia.com/wiki/Working_with_Unicode)
if has("multi_byte")
  if &termencoding == ""
    let &termencoding = &encoding
  endif
  set encoding=utf-8
  setglobal fileencoding=utf-8
  set fileencodings=ucs-bom,utf-8,latin1
endif

" The "longest" option makes completion insert the longest prefix of all
" the possible matches; see :h completeopt
"set completeopt=menu,menuone,longest
set completeopt=menu,preview " this is the default
set switchbuf=useopen,usetab

" Determines the maximum number of items to show in the popup menu.
" Zero is take as much as possible.
set pumheight=6

" Customize GUI interface
"set guioptions-=m " Turn off GUI menu bar
"set guioptions-=T " Turn off GUI toolbar (icons)
"set guioptions-=r " Turn off GUI right scrollbar
"set guioptions-=L " Turn off GUI left scrollbar


" COLOR SETTINGS
" onedark.vim override: Don't set a background color when running in a terminal;
" just use the terminal's background color
" `gui` is the hex color code used in GUI mode/nvim true-color mode
" `cterm` is the color code used in 256-color mode
" `cterm16` is the color code used in 16-color mode
if (has("autocmd") && !has("gui_running"))
  augroup colorset
    autocmd!
    let s:white = { "gui": "#ABB2BF", "cterm": "145", "cterm16" : "7" }
    autocmd ColorScheme * call onedark#set_highlight("Normal", { "fg": s:white }) " `bg` will not be styled since there is no `bg` setting
  augroup END
endif

" set vim to 256 colors to work with terminals
set t_Co=256

" Enable true color for terminal
if exists('+termguicolors')
  let &t_8f = "\<Esc>[38;2;%lu;%lu;%lum"
  let &t_8b = "\<Esc>[48;2;%lu;%lu;%lum"
  set termguicolors
endif

" Choose colorscheme
"colorscheme default
colorscheme onedark

if g:colors_name == 'default'
  " Change the visual highlight color to match my terminal color
  highlight Visual ctermfg=None ctermbg=DarkGrey
  " Change wrong spelling highlight color to be more readable (218 = pink)
  highlight SpellBad ctermbg=218 ctermfg=0
  " Reverse the color for Search to make it more redable
  highlight Search ctermbg=0 ctermfg=Yellow cterm=reverse
  " Make warnigs more readable
  highlight SyntasticWarning ctermbg=LightBlue ctermfg=0
endif


" EDITOR SETTINGS
" Use case insensitive search, except when using capital letters
set ignorecase
set smartcase

" When opening a new line and no filetype-specific indenting is enabled, keep
" the same indent as the line you're currently on. Useful for READMEs, etc.
set autoindent
set smartindent " smart auto indenting
set copyindent " copy the previous indentation on autoindenting

" Allow backspacing over everything in insert mode
set backspace=indent,eol,start
" cursor keys cross line boundaries
set whichwrap+=h,l

set smarttab " smart tab handling for indenting
set magic " change the way backslashes are used in search patterns

set nobackup " no backup~ files.
set noswapfile " no .swp files.

" Indentation settings for using 2 spaces instead of tabs.
" Do not change 'tabstop' from its default value of 8 with this setup.
set shiftwidth=2
set softtabstop=2
set expandtab

" enforces a specified line-length and auto inserts hard line breaks when we
" reach the limit; in Normal mode, you can reformat the current paragraph with
" gqap.
set textwidth=100
"this makes the color after the textwidth column highlighted
"set colorcolumn=81

" show whitespace in cpph files
set list listchars=tab:>-,trail:·,extends:>


" SEARCH SETTINGS
set nohlsearch " do not highlight searched-for phrases
"set hlsearch " the opposite, use :noh to stop highlighting
set incsearch " ...but do highlight-as-I-type the search string
set gdefault " this makes search/replace global by default
if v:version >= 704
  " The new Vim regex engine is currently slooooow as hell which makes syntax
  " highlighting slow, which introduces typing latency.
  " Consider removing this in the future when the new regex engine becomes
  " faster.
  set regexpengine=1
endif


" SPELLCHECKING SETTINGS
set spelllang=en,el
set spellfile=$HOME/.vim/spell/en.utf-8.add,$HOME/.vim/spell/el.utf-8.add
" set spell checking for certain filetypes
autocmd BufRead,BufNewFile *.md setlocal spell
autocmd FileType gitcommit setlocal spell
autocmd BufRead,BufNewFile *.tex setlocal spell


" FILETYPES SETTINGS
" add custom filetypes
au BufNewFile,BufRead *.launch set filetype=xml " this is probably handled by vim-ros plugin


" greek language input - toggle with ctr-6
" set keymap=greek_utf-8 " Disable until Greek keyboard is needed. :)
set iminsert=0
set imsearch=-1
" <F2> also toggles
"inoremap <F2> <C-^>

if &term =~ '^screen'
    " tmux will send xterm-style keys when its xterm-keys option is on
    execute "set <xUp>=\e[1;*A"
    execute "set <xDown>=\e[1;*B"
    execute "set <xRight>=\e[1;*C"
    execute "set <xLeft>=\e[1;*D"
endif

" for mouse to work properly when using tmux
"set ttymouse=xterm2
set ttymouse=sgr

" CUSTOM MAPPINGS
" <leader>v brings up .vimrc
" <leader>V reloads it and makes all changes active (file has to be saved first)
noremap <leader>v :e! $MYVIMRC<CR>
noremap <silent> <leader>V :source $MYVIMRC<CR>:filetype detect<CR>:exe ":echo 'vimrc reloaded'"<CR>

" map control-backspace to delete the previous word, works only in gvim
imap <C-BS> <C-W>

" Bind Ctrl+<movement> keys to move around the windows,
" instead of using Ctrl+w + <movement>
nnoremap <c-l> <c-w>l
nnoremap <c-j> <c-w>j
nnoremap <c-h> <c-w>h
nnoremap <c-k> <c-w>k

" Using '<' and '>' in visual mode to shift code by a tab-width left/right by
" default exits visual mode. With this mapping we remain in visual mode after
" such an operation.
vnoremap < <gv
vnoremap > >gv



" PLUGINS

" NERDTree
" toggle NERDTree with Ctrl+n
map <C-n> :NERDTreeToggle<CR>

" find the current file in NERDTree
nmap <leader>f :NERDTreeFind<CR>

"let NERDTreeDirArrows=0 " Use + ~ chars for directories
"let NERDTreeMinimalUI=1 " Remove excess information bars
"let NERDTreeShowBookmarks=1 " Show Bookmarks


" TagBar
" toogle TagBar with <F8>
nmap <F8> :TagbarToggle<CR>
" Change the color to match with my terminal color
highlight TagbarHighLight ctermbg=Yellow ctermfg=Black

" mini-bufexpl customization
" set minibufexp to split vertically and to the right
let g:miniBufExplBRSplit = 1
let g:miniBufExplVSplit = 1

" set max column size
let g:miniBufExplMaxSize = 30

" use Ctrl+Page Up/Down to change buffers
nmap <C-PageDown> :MBEbn<CR>
nmap <C-PageUp> :MBEbp<CR>

" use Ctrl+Up/Down to do the same as above, solves terminal issues
nmap <C-Down> <C-PageDown>
nmap <C-Up> <C-PageUp>

" same as above but in MRU fashion
nnoremap <C-TAB>   :MBEbb<CR>
nnoremap <C-S-TAB> :MBEbf<CR>

" same as above, but adjusted for terminator
nnoremap <C-Left>   :MBEbb<CR>
nnoremap <C-Right>  :MBEbf<CR>

" should buffer be cycled arround if hits the begining or the endi
let g:miniBufExplCycleArround = 1

" toogle minibufexpl with <F9>
map <F9> :MBEToggle<CR>


" vim-airline customization
" don't show vim's mode, use airline's instead
set noshowmode
" make airline visible without split
set laststatus=2

" remove delay detween insert and normal mode
set ttimeoutlen=50

" change default colors for airline
let g:airline_theme = 'kolor'

" enable powerline symbols, needs powerline fonts installed
" disable powerline fonts for now
let g:airline_powerline_fonts = 0

" indentLine settings
" change default indent character for indentLine let g:indentLine_char = '┊'
" disable indentLine plugin on startup
let g:indentLine_enabled = 0

" toggle indentLine with <F7>
nmap <F7> :IndentLinesToggle<CR>


" YouCompleteMe SETTINGS
let g:ycm_complete_in_comments_and_strings  = 1
let g:ycm_seed_identifiers_with_syntax = 1
let g:ycm_collect_identifiers_from_comments_and_strings = 1
let g:ycm_autoclose_preview_window_after_insertion = 1
let g:ycm_key_list_select_completion=['<tab>', '<Down>']
let g:ycm_key_list_previous_completion=['<s-tab>', '<Up>']
let g:ycm_auto_trigger = 1
let g:ycm_auto_hover = '' "Don't show popup when cursor is over a type/variable
let g:ycm_confirm_extra_conf = 0 "Don't ask for confirmation every time
let g:ycm_global_ycm_extra_conf='~/.vim/bundle/YouCompleteMe/third_party/ycmd/cpp/ycm/.ycm_extra_conf.py'
let g:ycm_clangd_args=['--enable-config']


" Startify SETTINGS
let g:startify_change_to_vcs_root = 1
let g:startify_bookmarks = [ '~/.vimrc', '~/.bashrc' ]


" clang-formater SETTINGS
let g:clang_format#command = "clang-format-athena-1"
"let g:clang_format#code_style = "google"
"let g:clang_format#style_options = {
"      \ "ColumnLimit" : 100,
"      \ "BinPackParameters" : "false",
"      \ "DerivePointerAlignment": "false",
"      \ "PointerAlignment": "Left"}


" CtrlP SETTINGS
" Use the cpsm algorithm
let g:ctrlp_match_func = {'match': 'cpsm#CtrlPMatch'}
"let g:ctrlp_user_command = 'find %s -type f'
if executable('ag')
  let g:ctrlp_user_command =
    \ 'ag %s --files-with-matches -g "" --nocolor --nogroup --ignore "\.git$\|\.hg$\|\.svn$" --path-to-ignore .ctrlp_ignore'
endif

" mappings
let g:ctrlp_map = '<leader><space>'
nnoremap <silent> <leader>b :CtrlPBuffer<cr>


" Unite SETTINGS
" should install silversearcher-ag
"if executable('ag')
"  " Use ag (the silver searcher)
"  " https://github.com/ggreer/the_silver_searcher
"  call denite#custom#var('grep', 'command', ['ag'])
"  call denite#custom#var('grep', 'recursive_opts', [])
"  call denite#custom#var('grep', 'pattern_opt', [])
"  call denite#custom#var('grep', 'separator', ['--'])
"  call denite#custom#var('grep', 'final_opts', [])
"  call denite#custom#var('grep', 'default_opts',
"          \ [ '--skip-vcs-ignores', '--vimgrep', '--smart-case', '--hidden' ])
"end

"" Default is 'matcher/fuzzy'
"call denite#custom#source('file/rec', 'matchers', ['matcher/cpsm', 'matcher/fuzzy'])
"" Default is 'sorter/rank'
"call denite#custom#source('buffer,file/rec', 'sorters', ['sorter/rank'])
"" Default is None
"call denite#custom#source('buffer,file/rec', 'converters', ['converter_relative_word'])

"nmap <leader> [denite]
"nnoremap [denite] <nop>
"" Unite mappings
"nnoremap <silent> [denite]/ :<C-u>Denite -mode=normal -direction=dynamicbottom -no-quit -buffer-name=search grep:.<cr>
"nnoremap <silent> [denite]b :<C-u>Denite -mode=normal -direction=dynamicbottom -auto-resize -buffer-name=buffers buffer<cr>
"nnoremap <silent> [denite]<space> :<C-u>Denite -direction=dynamicbottom -auto-resize -buffer-name=mixed file_rec buffer file_mru<cr>


" Syntastic SETTINGS
" disable some warnings for tex files
let g:syntastic_tex_chktex_args = "-n19 -n24"


" Latex-Box SETTINGS
let g:LatexBox_latexmk_async = 0
let g:LatexBox_build_dir = "build"
let g:LatexBox_quickfix = 3
" call latexmk when saving
au BufWritePost *.tex call LatexBox_Latexmk(0)