" basic settings
set ts=4
set sw=4
set cc=120
set expandtab
set nu
set hidden
set list
set autoindent
set confirm
set noundofile
set nobackup
set hlsearch
set noswapfile
set ignorecase
set laststatus=2
set fillchars=vert:\ ,fold:-
filetype plugin indent on
syntax on
cnoremap <C-a> <Home>
cnoremap <C-e> <End>
cnoremap <C-f> <Right>
cnoremap <C-b> <Left>
cnoremap <C-d> <Delete>
cnoremap <C-n> <Down>
cnoremap <C-p> <Up>

inoremap <C-a> <Home>
inoremap <C-e> <End>
inoremap <C-f> <Right>
inoremap <C-b> <Left>
inoremap <C-d> <Delete>
inoremap <C-n> <Down>
inoremap <C-p> <Up>

noremap <C-a> <Home>
noremap <C-e> <End>
noremap <C-f> <Right>
noremap <C-b> <Left>

vnoremap <leader>p "_dP
nnoremap <leader>q :qall<CR>

nnoremap <leader>1 :b1


" trailing spaces
highlight ExtraWhitespace ctermbg=red guibg=red
au ColorScheme * highlight ExtraWhitespace ctermbg=red guibg=red
au Syntax * match ExtraWhitespace /\s\+$/
nnoremap <leader>es :%s/\s\+$//g<CR>

" auto install vim-plug
if has('nvim')
    let vim_plug_path = expand("~/.config/nvim/autoload/plug.vim")
else
    let vim_plug_path = expand("~/.vim/autoload/plug.vim")
endif
let vim_plug_just_installed = 0
if !filereadable(vim_plug_path)
    echo "Installing vim-plug..."
    :exe "!curl -fLo " . vim_plug_path . " --create-dirs https://gitee.com/klesh/vim-plug/raw/master/plug.vim"
    let vim_plug_just_installed = 1
    echo "vim-plug installed"
endif

call plug#begin()
Plug 'editorconfig/editorconfig-vim'
Plug 'tpope/vim-surround'
Plug 'jiangmiao/auto-pairs'
Plug 'neoclide/coc.nvim', {'branch': 'release'}
Plug 'neoclide/coc-json', {'do': 'yarn install --frozen-lockfile'}
Plug 'iamcco/coc-vimlsp', {'do': 'yarn install --frozen-lockfile'}
Plug 'neoclide/coc-python', {'do': 'yarn install --frozen-lockfile'}
Plug 'weirongxu/coc-explorer', {'do': 'yarn install --frozen-lockfile'}
Plug 'liuchengxu/eleline.vim'
Plug 'tpope/vim-fugitive'                                         " git 功能
Plug 'scrooloose/nerdcommenter'
Plug 'ctrlpvim/ctrlp.vim'
Plug 'mhinz/vim-grepper', { 'on': ['Grepper', '<plug>(GrepperOperator)'] }
Plug 'morhetz/gruvbox'
call plug#end()


" ==== coc configuration ====
nmap <silent> gd <Plug>(coc-definition)
nmap <silent> gy <Plug>(coc-type-definition)
nmap <silent> gi <Plug>(coc-implementation)
nmap <silent> gr <Plug>(coc-references)

xmap <silent> <leader>fs <Plug>(coc-format-selected)
nmap <silent> <leader>fs <Plug>(coc-format-selected)
nmap <silent> <leader>fb <Plug>(coc-format)
nmap <silent> <leader>rn <Plug>(coc-rename)
nmap <silent> <leader>ne <Plug>(coc-diagnostic-next-error)
nmap <silent> <leader>pe <Plug>(coc-diagnostic-prev-error)
nmap <silent> <leader>fe :CocCommand explorer --toggle<CR>
nmap <silent> <leader>if :CocInfo<CR>
nmap <silent> <leader>cl :CocList<CR>
nmap <silent> <leader>sd :call CocAction('doHover')<CR>
nmap <silent> <leader>ss :call CocAction('showSignatureHelp')<CR>
nmap <silent> <leader>ol <Plug>(coc-openlink)
nnoremap <leader>sg :Grepper -tool git<CR>
nnoremap <leader>sc :Grepper -tool grep<CR>


" ==== fugitive configuration ====
nnoremap <leader>gs :Gstatus<CR>
nnoremap <leader>gc :Gcommit<CR>
nnoremap <leader>gp :Gpush<CR>
nnoremap <leader>gg :Gpull<CR>
nnoremap <leader>gd :Gdiff<CR>

" ==== ctrlp configuration ====
let g:ctrlp_user_command = ['.git', 'git ls-files -co --exclude-standard']


" ==== gruvbox configuration ====
color gruvbox
set background=dark
highlight Normal ctermbg=None