"standard vim settings
:set nocompatible
filetype off
:set backupcopy=yes
:set encoding=utf-8
:set showcmd
:set modelines=0
:nmap <F1> <nop>
set mouse=a
set exrc
"colorscheme
syntax on
let g:nord_italic_comments = 1
let g:nord_comment_brightness = 20
colorscheme nord
"Get rid of TODO highlighting
hi Todo guibg=NONE

" nvim-specific settings
if has('nvim')
    " Use system clipboard
    set clipboard=unnamed
    set clipboard+=unnamedplus
else
    " Use system clipboard
    :set clipboard=unnamedplus

    set t_Co=256
    highlight Normal ctermbg=233 "fix background colors
    highlight NonText ctermbg=233 "fix background colors
    highlight LineNr ctermbg=234
    highlight Cursorline ctermbg=234
    highlight SignColumn ctermbg=234
endif

let g:SignatureMarkTextHL = "SignColumn"

"tab settings
set softtabstop=4
set shiftwidth=4
set tabstop=4
set hidden
set expandtab
set cursorline
set backspace=indent,eol,start
set showmode!
set undofile
set ruler
set colorcolumn=80
set lazyredraw
let mapleader = "\<Space>"
"search settings -- NOTE: because of EnchantedVim we are always running in \v
set ignorecase
set smartcase
set gdefault
set incsearch
set showmatch
set hlsearch
nnoremap <leader>/ :noh<cr> "<leader>/ to clear highlighting
"repetition settings
vnoremap . :normal .<CR>
nnoremap ' `
nnoremap ` @a
vnoremap ` :normal @a<CR>
"hotkeys
nnoremap , ;
vnoremap , ;
nnoremap ; %
nnoremap <silent> tt :tabnew<CR>
nnoremap <silent> [g :tabprevious<CR>
nnoremap <silent> ]g :tabnext<CR>
nnoremap <silent> vv :vsp<CR>
nnoremap <silent> ss :sp<CR>

"splitting
:set splitright
:set splitbelow

"add multi-line movement to jump list
nnoremap <expr> k (v:count > 1 ? "m'" . v:count : '') . 'k'
nnoremap <expr> j (v:count > 1 ? "m'" . v:count : '') . 'j'

"hi Normal guibg=NONE ctermbg=NONE "Transparency
:set number
:set relativenumber
set ttimeoutlen=0 "NOTE: if this causes issues, set to 5; reduces time to esc
set timeoutlen=1000

"vim-plug setup and plugins
call plug#begin('~/.vim/plugged')
" Settings
Plug 'tpope/vim-sensible' "Sensible basic options
Plug 'coot/EnchantedVim' "Persistent verymagic searches

" Basic editing
Plug 'ntpeters/vim-better-whitespace' "Whitespace stripping on save
Plug 'Raimondi/delimitMate' "Autocomplete parentheses, etc

" Aesthetics
Plug 'mhinz/vim-signify' "Git changes displayed in gutter and statusline, faster
Plug 'kshenoy/vim-signature' "Mark display
Plug 'vim-airline/vim-airline' "Status line
Plug 'vim-airline/vim-airline-themes' "Themes for airline
Plug 'arcticicestudio/nord-vim' "Nord colorscheme
Plug 'kien/rainbow_parentheses.vim' "Colorful nested parentheses

" Hotkeys (small)
Plug 'scrooloose/nerdcommenter' "Enables commenting commands
Plug 'tpope/vim-surround' "adds ds (delete surrounding x), cs, yss (place) commands
Plug 'tpope/vim-unimpaired' "Smarter mapping pairs (]b, etc)
Plug 'easymotion/vim-easymotion' "Letter-jump motion upgrades
Plug 'christoomey/vim-tmux-navigator' "Navigate tabs with C-l, etc
Plug 'qpkorr/vim-bufkill' "Close buffers without closing windows

" Tools (big)
Plug 'scrooloose/nerdtree' "File viewer panel
Plug 'tpope/vim-fugitive' "Git integration
Plug 'ctrlpvim/ctrlp.vim' "Fuzzy file finder
Plug 'sjl/gundo.vim' "Graphical undo tree
Plug 'majutsushi/tagbar' "Displays tag data, display with <leader>b
Plug 'vimwiki/vimwiki' "Personal wiki for note-taking
Plug 'w0rp/ale' "Asynch linting

" Completion and snippets
Plug 'ncm2/ncm2' "More powerful completion engine
Plug 'Shougo/neosnippet' "Faster snippet engine
Plug 'honza/vim-snippets'  "Snippet database
Plug 'Shougo/neosnippet-snippets'
Plug 'Shougo/neoinclude.vim' "Include autocompletion
Plug 'Shougo/neco-syntax' "Syntax autocompletion

" Completion sources
Plug 'ncm2/ncm2-bufword' "Words in buffer
Plug 'ncm2/ncm2-path' "Path
Plug 'ncm2/ncm2-tagprefix' "Tags
Plug 'ncm2/ncm2-syntax' "Language syntax
Plug 'ncm2/ncm2-neoinclude' "Includes
Plug 'ncm2/ncm2-jedi' "Python
Plug 'ncm2/ncm2-pyclang' "C/C++
Plug 'ncm2/ncm2-vim' "Vimscript

" Language-specific
Plug 'Shougo/neco-vim' "Vim syntax autocompletion
Plug 'roxma/ncm-clang' "C/C++ autocompletion
Plug 'Vimjas/vim-python-pep8-indent' "Python indentation

" Dependencies / Fixes
Plug 'coot/CRDispatcher' "Utility plugin used by enchantedvim
Plug 'jistr/vim-nerdtree-tabs' "Makes nerdtree work across tabs
Plug 'tpope/vim-repeat' "Repetition for various plugins
Plug 'xolox/vim-misc' "Dependency of easytags
Plug 'xolox/vim-easytags' "Generates tag files
Plug 'skywind3000/asyncrun.vim' "Asynch run shell commands; NOTE: nvim-specific
Plug 'roxma/nvim-yarp' "Remote plugin framework

" Disabled
" Plug 'zxqfl/tabnine-vim' "ML-sourced autocomplete: TODO: Make work with ncm2
" Plug 'mileszs/ack.vim'
" Plug 'maxbrunsfeld/vim-yankstack'
" Plug 'ap/vim-css-color'

call plug#end()

" configure ncm2
autocmd BufEnter * call ncm2#enable_for_buffer()
set completeopt=noinsert,menuone,noselect
" NOTE: select and use shift-k to see function documentation in python!
set shortmess+=c "Remove completion menu messages
let ncm2#popup_delay = 5 "make ncm2 faster
" let ncm2#complete_length = [[1,1]]
" let g:ncm2#matcher = 'substrfuzzy'

" Use tab to select menu
inoremap <expr> <Tab> pumvisible() ? "\<C-n>" : "\<Tab>"
inoremap <expr> <S-Tab> pumvisible() ? "\<C-p>" : "\<S-Tab>"
inoremap <silent> <expr> <CR> (pumvisible() && empty(v:completed_item)) ?  "\<c-y>\<cr>" : "\<CR>"
" integrate neosnippet
imap <c-k>     <Plug>(neosnippet_expand_or_jump)
vmap <c-k>     <Plug>(neosnippet_expand_or_jump)
smap <c-k>     <Plug>(neosnippet_expand_or_jump)

inoremap <silent> <c-u> <c-r>=cm#sources#neosnippet#trigger_or_popup("\<Plug>(neosnippet_expand_or_jump)")<cr>
vmap <c-u>     <Plug>(neosnippet_expand_target)
" expand parameters
let g:neosnippet#enable_completed_snippet=1
" interval before computing calculation to make typing faster
" let g:cm_complete_start_delay=0

" Configure neosnippet
autocmd InsertLeave * NeoSnippetClearMarkers "Delete markers when we leave insert mode
let g:neosnippet#snippets_directory='~/.vim/snippets'

" Configure sources
let g:ncm2_pyclang#library_path = '/usr/lib'

"Gundo setup
nnoremap <leader>h :GundoToggle<CR>

"Ctrlp setup
let g:ctrlp_switch_buffer = 0 "Allow opening the same buffer twice
" let g:ctrlp_custom_ignore = '\v(doxygen)|(\.(swp|git|gitkeep))$'
if executable('rg')
    set grepprg=ag\ --nogroup\ --nocolor
    let g:ctrlp_user_command = 'rg %s --files --color=never --glob ""'
endif

"Git setup
let g:airline#extensions#hunks#non_zero_only = 1  "Only display 'hunks' if diff is nonzero

" Signify (git diff in sign column) setup
let g:signify_vcs_list = ['git']
let g:signify_line_highlight = 0
let g:signify_sign_change = '~'
highlight clear DiffAdd "Signify colors: currently none
highlight clear DiffChange
highlight clear DiffDelete
highlight clear SignifySignAdd
highlight clear SignifySignChange
highlight clear SignifySignDelete

"vim-airline setup
let g:airline_powerline_fonts = 1 "Preload powerline fonts
set laststatus=2 "Always show statusline
let g:airline_theme='nord'
let g:airline#extensions#tabline#enabled = 1
let g:airline#extensions#ale#enabled = 1
let g:airline#extensions#tagbar#enabled = 0
let g:airline_detect_paste=0

"vim-better-whitespace setup
autocmd BufEnter * EnableStripWhitespaceOnSave
autocmd BufEnter * DisableWhitespace

"vim-sensible setup
runtime! plugin/sensible.vim

"delimitmate setup
let delimitMate_expand_cr = 1
augroup mydelimitMate
    au!
    au FileType markdown let b:delimitMate_nesting_quotes = ["`"]
    au FileType tex let b:delimitMate_quotes = ""
    au FileType tex let b:delimitMate_matchpairs = "(:),{:},`:'"
    au FileType python let b:delimitMate_nesting_quotes = ['"', "'"]
augroup end

"nerdtree setup
:map <leader>nt :NERDTreeTabsToggle<CR>
let NERDTreeIgnore = ['\.pyc$', '__pycache__$[[dir]]']

"NERD commenter setup
let g:NERDSpaceDelims = 1 " Space after comment delimiters
let g:NERDTrimTrailingWhitespace = 1
let g:NERDDefaultAlign = 'left'

" Ale setup
let g:ale_lint_on_enter = 1
let g:ale_lint_on_text_changed = 'always' "Set to 'never' for moar speed
let g:ale_lint_on_insert_leave = 0
let g:ale_lint_on_save = 1
" let g:ale_set_loclist = 0
" let g:ale_set_quickfix = 1
let g:ale_open_list = 'never'
let g:ale_list_vertical = 0

let g:ale_linters = {
\   'python': ['flake8', 'prospector', 'mypy'],
\   'c': ['clang', 'clangtidy', 'gcc']
\}

let g:ale_echo_msg_format = '%linter%: %s'

" pylint setup
let g:ale_python_pylint_options = '--rcfile /home/whillikers/.pylintrc'

" Close preview window when autocompletion is finished
autocmd CompleteDone * pclose

" Continuously make latex files on save
autocmd BufWritePost *.tex :AsyncRun pdflatex *.tex

"rainbowparentheses setup
let g:rbpt_max = 3
" au VimEnter * RainbowParenthesesToggle
" au Syntax * RainbowParenthesesLoadRound
" au Syntax * RainbowParenthesesLoadSquare
" au Syntax * RainbowParenthesesLoadBraces

"easytags setup
set tags=./tags;,~/.vimtags
let g:easytags_events = ['BufReadPost', 'BufWritePost']
let g:easytags_async = 1
let g:easytags_dynamic_files = 2
let g:easytags_resolve_links = 1
let g:easytags_suppress_ctags_warning = 1

"tagbar setup
nmap <silent> <leader>b :TagbarToggle<CR>

"vimwiki setup
let g:vimwiki_list = [
                        \{'path': '~/doc/notes/vimwiki/index.wiki'},
                    \]

" C/C++ setup
autocmd BufNewFile,BufRead *.h if !empty(globpath('.', '*.c')) | setlocal ft=c | endif
let g:ale_c_clangtidy_checks = ['*', '-llvm-include-order', '-google-readability-todo', '-clang-diagnostic-error', '-header-filter']
let g:ale_c_clang_options = '-std=c11 -Wall'

" Avoid redrawing on every entered character by turning off arabic shaping
if has('arabic')
    set noarabicshape
endif

" Ocaml setup
set wildignore+=*.cmi,*.cmo,*.dta,*.dat

"end-of-file stuff
filetype plugin indent on
" ## added by OPAM user-setup for vim / base ## 93ee63e278bdfc07d1139a748ed3fff2 ## you can edit, but keep this line
let s:opam_share_dir = system("opam config var share")
let s:opam_share_dir = substitute(s:opam_share_dir, '[\r\n]*$', '', '')

let s:opam_configuration = {}

function! OpamConfOcpIndent()
  execute "set rtp^=" . s:opam_share_dir . "/ocp-indent/vim"
endfunction
let s:opam_configuration['ocp-indent'] = function('OpamConfOcpIndent')

function! OpamConfOcpIndex()
  execute "set rtp+=" . s:opam_share_dir . "/ocp-index/vim"
endfunction
let s:opam_configuration['ocp-index'] = function('OpamConfOcpIndex')

function! OpamConfMerlin()
  let l:dir = s:opam_share_dir . "/merlin/vim"
  execute "set rtp+=" . l:dir
endfunction
let s:opam_configuration['merlin'] = function('OpamConfMerlin')

let s:opam_packages = ["ocp-indent", "ocp-index", "merlin"]
let s:opam_check_cmdline = ["opam list --installed --short --safe --color=never"] + s:opam_packages
let s:opam_available_tools = split(system(join(s:opam_check_cmdline)))
for tool in s:opam_packages
  " Respect package order (merlin should be after ocp-index)
  if count(s:opam_available_tools, tool) > 0
    call s:opam_configuration[tool]()
  endif
endfor
" ## end of OPAM user-setup addition for vim / base ## keep this line