call plug#begin()

" completion
Plug 'shougo/deoplete.nvim', { 'do': ':UpdateRemotePlugins' }
Plug 'zchee/deoplete-go', {' do': 'make' }

" color
Plug 'chrisbra/colorizer'
Plug 'joshdick/onedark.vim'

" ctags
Plug 'ludovicchabant/vim-gutentags'

" documentation
Plug 'rhysd/devdocs.vim'

" fzf
Plug 'junegunn/fzf.vim'

" git
Plug 'airblade/vim-gitgutter'

" language support
Plug 'fatih/vim-go'
Plug 'sheerun/vim-polyglot'

" language server protocol
Plug 'autozimu/languageclient-neovim', { 'branch': 'next', 'do': 'bash install.sh' }

" linting & formatting
Plug 'sbdchd/neoformat'
Plug 'w0rp/ale'

" navigation
Plug 'airblade/vim-rooter'
Plug 'ericcurtin/curtineincsw.vim'
Plug 'justinmk/vim-dirvish'

" quickfix & loclist
Plug 'romainl/vim-qf'

" search
Plug 'junegunn/vim-slash'
Plug 'mhinz/vim-grepper'

" snippet
Plug 'sirver/ultisnips' | Plug 'honza/vim-snippets'

" text editing
Plug 'chaoren/vim-wordmotion'
Plug 'michaeljsmith/vim-indent-object'
Plug 'ntpeters/vim-better-whitespace'
Plug 'raimondi/delimitmate'
Plug 'tommcdo/vim-lion'
Plug 'wellle/targets.vim'

" tpope
Plug 'tpope/vim-abolish'
Plug 'tpope/vim-commentary'
Plug 'tpope/vim-endwise'
Plug 'tpope/vim-eunuch'
Plug 'tpope/vim-fugitive'
Plug 'tpope/vim-repeat'
Plug 'tpope/vim-rsi'
Plug 'tpope/vim-sleuth'
Plug 'tpope/vim-surround'
Plug 'tpope/vim-unimpaired'

" undo
Plug 'mbbill/undotree'

call plug#end()

" ale
let g:ale_lint_on_insert_leave = 1
let g:ale_lint_on_text_changed = 'normal'
let g:ale_set_quickfix = 1

" better whitespace
let g:better_whitespace_enabled = 1
let g:better_whitespace_guicolor = '#e06c75'

" colorizer
let g:colorizer_colornames = 0

" delimitmate
let g:delimitMate_balance_matchpairs = 1
let g:delimitMate_expand_cr = 1
let g:delimitMate_expand_space = 1

" deoplete
let g:deoplete#enable_at_startup = 1

" dirvish
let g:dirvish_relative_paths = 1
let g:loaded_netrw = 1
let g:loaded_netrwPlugin = 1

command! -nargs=? -complete=dir Explore silent Dirvish <args>
command! -nargs=? -complete=dir Sexplore split | silent Dirvish <args>
command! -nargs=? -complete=dir Vexplore vsplit | silent Dirvish <args>

" fzf
let g:fzf_history_dir = $HOME . '/.local/share/nvim/fzf'
let g:fzf_layout = { 'down': '10' }

command! -bang -nargs=* Rg
            \ call fzf#vim#grep(
            \   'rg --column --line-number --no-heading --color=always --smart-case '.shellescape(<q-args>), 1,
            \   <bang>0 ? fzf#vim#with_preview('up:60%') : fzf#vim#with_preview('right:50%:hidden', '?'), <bang>0)

" gitgutter
if executable('rg')
    let g:gitgutter_grep = 'rg'
endif

" gutentags
if !executable('ctags')
    let g:gutentags_enabled = 0
endif

" go
let g:go_fmt_command = 'goimports'
let g:go_term_mode = 'split'

" grepper
let g:grepper = {
            \ 'dir': 'filecwd',
            \ 'jump': 1,
            \ 'quickfix': 0,
            \ 'switch': 0,
            \ 'tools': [ 'rg', 'ag', 'ack', 'grep', 'git', 'findstr', 'pt', 'sift' ],
            \ }

" languageclient
let g:LanguageClient_serverCommands = {
            \ 'c': [ 'clangd' ],
            \ 'cpp': [ 'clangd' ],
            \ 'javascript': [ 'javascript-typescript-stdio' ],
            \ 'python': [ 'pyls' ],
            \ 'ruby': [ 'solargraph',  'stdio' ],
            \ }

" onedark
let g:onedark_color_overrides = {
            \ 'comment_grey': { 'gui': '#7f848e', 'cterm': '59', 'cterm16': '15' },
            \ 'gutter_fg_grey': { 'gui': '#515a6b', 'cterm': '238', 'cterm16': '15' },
            \ 'special_grey': { 'gui': '#7f848e', 'cterm': '238', 'cterm16': '15' },
            \ 'vertsplit': { 'gui': '#515a6b', 'cterm': '59', 'cterm16': '15' },
            \ }

" polyglot
let g:jsx_ext_required = 1

" qf
let g:qf_auto_open_quickfix = 0

" rooter
let g:rooter_manual_only = 1

" ultisnips
let g:UltiSnipsJumpBackwardTrigger = '<a-b>'
let g:UltiSnipsJumpForwardTrigger = '<a-f>'
let g:UltiSnipsSnippetDirectories = [ 'snips' ]

" undotree
let g:undotree_SetFocusWhenToggle = 1

" wordmotion
let g:wordmotion_spaces = '_-.'

" --------------------------------

augroup Settings
    autocmd!

    " completion
    autocmd InsertLeave * if pumvisible() == 0 | pclose | endif
augroup END

augroup Plugins
    autocmd!

    " ale
    autocmd Filetype c,cpp let b:ale_enabled = 0

    " commentary
    autocmd Filetype c,cpp setlocal commentstring=//%s
    autocmd Filetype sql setlocal commentstring=--%s

    " curtineincsw
    autocmd Filetype c,cpp command! -bang A call CurtineIncSw()

    " go
    autocmd Filetype go command! -bang A call go#alternate#Switch(<bang>0, 'edit')
augroup END

" --------------------------------

" normal + visual mappings
noremap + "+

noremap \ :

noremap 0 ^
noremap ^ 0

" normal mappings
nnoremap Y y$

nnoremap <expr> i len(getline('.')) == 0 ? '"_cc' : 'i'

" insert mappings
inoremap <c-u> <c-g>u<c-u>

if executable('fzf')
    imap <c-x><c-f> <plug>(fzf-complete-path)
endif

" g mappings
nnoremap gb :Buffers<cr>
map      gs <plug>(GrepperOperator)

" leader mappings
let mapleader = "\<space>"

nnoremap <leader>c  :ColorToggle<cr>
nnoremap <leader>n  :Neoformat<cr>
nnoremap <leader>s  :StripTrailingWhitespace<cr>
nnoremap <leader>u  :UndotreeToggle<cr>

nnoremap <leader>dd :DevDocs<space>
nnoremap <leader>dc :DevDocsUnderCursor<cr>

nnoremap <leader>fg :GFiles<cr>
nnoremap <leader>fi :Files<cr>
nnoremap <leader>fl :Lines<cr>
nnoremap <leader>ft :Tags<cr>

nnoremap <leader>gb :Gblame<cr>
nnoremap <leader>gd :Gdiff<cr>
nnoremap <leader>ge :Gedit<cr>
nnoremap <leader>gg :Git<space>
nnoremap <leader>gl :silent! Gllog<cr>
nnoremap <leader>gm :Gmerge<cr>
nnoremap <leader>gr :Gread<cr>
nnoremap <leader>gs :Gstatus<cr>
nnoremap <leader>gw :Gwrite<cr>

nnoremap <leader>rb :Grepper-buffers<cr>
nnoremap <leader>rg :Grepper<cr>

" --------------------------------

" buffer
set hidden

" color
set termguicolors
silent! colorscheme onedark

" column
set numberwidth=2
set signcolumn=yes

" completion
set completeopt+=menuone,noinsert,noselect
set pumheight=10

" confirmation
set confirm

" cursor
set nostartofline

" indentation
set expandtab
set shiftround
set shiftwidth=4
set tabstop=4

" matching
set showmatch

" message
set noruler
set noshowcmd
set noshowmode
set shortmess+=cF

" scroll
set scrolloff=1
set sidescrolloff=5

" search
set gdefault
set ignorecase
set inccommand=nosplit
set smartcase

" swap
set noswapfile

" statusline
set statusline=
      \\ %{&filetype!=#''?&filetype:'none'}
      \\ %{&readonly\|\|!&modifiable?&modified?'%*':'%%':&modified?'**':'--'}
      \\ %{expand('%:~:.')!=#''?expand('%:~:.'):'[No\ Name]'}
      \%=
      \%l/%L%1(%)
      \%p%%%1(%)

" undo
set undofile

" update
set lazyredraw
set updatetime=150

" window
set splitbelow
set splitright

" wrapping
set breakindent
set linebreak
let &showbreak = '↳ '