init.vim

"gf go file
"gi 跳转到上次编辑位置 haha
"ctrl+o 移动到上次光标的位置 haha
"ZZ 保存退出

"           _             _                    
"__  __ ___| |__   __   _(_)_ __ ___  _ __ ___ 
"\ \/ /|_  / '_ \  \ \ / / | '_ ` _ \| '__/ __|
" >  <  / /| |_) |  \ V /| | | | | | | | | (__ 
"/_/\_\/___|_.__/    \_/ |_|_| |_| |_|_|  \___|
"                                              

" Author: @xiezhibin


" ===
" === Auto load for first time uses
" ===
if empty(glob('~/.config/nvim/autoload/plug.vim'))
  silent !curl -fLo ~/.config/nvim/autoload/plug.vim --create-dirs
    \ https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim
  autocmd VimEnter * PlugInstall --sync | source $MYVIMRC
endif


" ====================
" === Editor Setup ===
" ====================

" ===
" === System
" ===
let &t_ut=''
set autochdir
set fileencodings=utf8,cp936,gb18030,big5 

set nocompatible 
syntax on
set mouse=a
set encoding=utf-8
set t_Co=256
filetype off


" ===
" === Editor behavior
" ===
set number
"set relativenumber
"set cursorcolumn
set cursorline
set colorcolumn=80
set noshowmode
set nobackup
set ttimeoutlen=0
set notimeout
set noswapfile
set wildmenu
set showcmd
set undofile
set clipboard^=unnamed,unnamedplus

" ===高级
set regexpengine=1
"在执行宏命令时，不进行显示重绘；在宏命令执行完成后，一次性重绘，以便提高性能。
set lazyredraw
set ttyfast "should make scrolling faster
set noerrorbells "关闭错误信息响铃 
set visualbell "使用可视响铃代替呼叫

silent !mkdir -p ~/.config/nvim/tmp/backup
silent !mkdir -p ~/.config/nvim/tmp/undo
silent !mkdir -p ~/.config/nvim/tmp/sessions
set backupdir=~/.config/nvim/tmp/backup,.
set directory=~/.config/nvim/tmp/backup,.
if has('persistent_undo')
	set undofile
	set undodir=~/.config/nvim/tmp/undo,.
endif
au BufReadPost * if line("'\"") > 1 && line("'\"") <= line("$") | exe "normal! g'\"" | endif

" 退出插入模式时，自动保存
au InsertLeave * write

" 搜索
set hlsearch
set incsearch
set ignorecase
set smartcase

" 自动缩进
set autoindent

" 将ΤΑΒ转换成空格
set expandtab

" 在 insert 模式下，一个 TAB 键按下后，展示成几个空格
set softtabstop=4

"tabstop 有两个作用: 1.识别多少个空格形成一个TAB/ 2.显示既有文件时，将 TAB 显示成多个个空格
set tabstop=4

" >> 缩进的空格数
set shiftwidth=4

" 将ΤΑΒ显示为 | ，空格显示为▫
set listchars=tab:\|\ ,trail:▫
set list

" 自动换行
set wrap

" 只有遇到指定的符号（比如空格、连词号和其他标点符号），才发生折行。也就是说，不会在单词内部折行
set linebreak

" 指定折行处与编辑窗口的右边缘之间空出的字符数
set wrapmargin=2

" 垂直滚动时，光标距离顶部/底部的位置（单位：行）
set scrolloff=5

" 水平滚动时，光标距离行首或行尾的位置（单位：字符）。该配置在不折行时比较有用
set sidescrolloff=15



" ===
" === Cursor Movement
" ===
" New cursor movement (the default arrow keys are used for resizing windows)
"     ^
"     u
" < n   o >
"     e
"     v
noremap <silent> r k
noremap <silent> n h
noremap <silent> i j
noremap <silent> o l
" 上下左右plus
noremap <silent> R 5k
noremap <silent> I 5j
noremap <silent> N 0
noremap <silent> O $

noremap <silent> l o
noremap <silent> L O

noremap <silent> k r
noremap <silent> h i
noremap <silent> H I

noremap m u
noremap M <C-r>

noremap u r

" Faster in-line navigation
noremap W 3w
noremap B 3b

noremap = n
noremap - N


" ===
" === Basic Mappings
" ===
" Set <LEADER> as <SPACE>, ; as :
let mapleader=" "
"noremap ; :

" Save & quit
nnoremap q :q<CR>
nnoremap s :w<CR>
inoremap ii <ESC>
inoremap oo <ESC>A

" Open the vimrc file anytime
noremap <LEADER>rc :e ~/.config/nvim/init.vim<CR>
noremap <LEADER>src :source ~/.config/nvim/init.vim<CR>

" Open Startify
noremap <LEADER>st :Startify<CR>


" Indentation
nnoremap < <<
nnoremap > >>

" Search
noremap <LEADER><CR> :nohlsearch<CR>



" ===
" === Other useful stuff
" ===
" 切换buffer
nnoremap ] :bn<CR>
nnoremap [ :bp<CR>

" \p to show the current buffer file path
nnoremap \p 1<C-G>

" Opening a terminal window
noremap <LEADER>/ :set splitbelow<CR>:sp<CR>:term<CR>


" 大小写转换 change case 
noremap ` ~

" 括号自动补全
" inoremap ' ''<ESC>i
""inoremap " ""<ESC>i
""inoremap ( ()<ESC>i
""inoremap ) ()
""inoremap [ []<ESC>i
""inoremap < <><ESC>i
""inoremap { {<CR>}<ESC>O
""inoremap { {}<ESC>i
""inoremap } {}
""

" ===
" === Window management
" ===
" Use <space> + new arrow keys for moving the cursor around windows
noremap <LEADER>w <C-w>w
noremap <LEADER>u <C-w>k
noremap <LEADER>e <C-w>j
noremap <LEADER>n <C-w>h
noremap <LEADER>o <C-w>l

" Disable the default s key
noremap S <nop>
noremap D <nop>
noremap j <nop>

" split the screens to up (horizontal), down (horizontal), left (vertical), right (vertical)
noremap <LEADER>su :set nosplitbelow<CR>:split<CR>:set splitbelow<CR>
noremap <LEADER>se :set splitbelow<CR>:split<CR>
noremap <LEADER>sn :set nosplitright<CR>:vsplit<CR>:set splitright<CR>
noremap <LEADER>so :set splitright<CR>:vsplit<CR>

" Resize splits with arrow keys
noremap <LEADER><up> :res +5<CR>
noremap <LEADER><down> :res -5<CR>
noremap <LEADER><left> :vertical resize-5<CR>
noremap <LEADER><right> :vertical resize+5<CR>

" Place the two screens up and down
noremap <LEADER>sh <C-w>t<C-w>K
" Place the two screens side by side
noremap <LEADER>sv <C-w>t<C-w>H


" ===
" === Tab management
" ===
" Create a new tab with tu
noremap tu :tabe<CR>
" Move around tabs with tn and ti
noremap tn :-tabnext<CR>
noremap to :+tabnext<CR>
" Move the tabs with tmn and tmi
noremap tmn :-tabmove<CR>
noremap tmo :+tabmove<CR>



" ===================== Start of Plugin Settings =====================
" ===
" === Install Plugins with Vim-Plug
" ===
call plug#begin('~/.config/nvim/plugged')

Plug 'mhinz/vim-startify'
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'
Plug 'bling/vim-bufferline'
Plug 'yggdroot/indentline'
Plug 'morhetz/gruvbox'
Plug 'vim-nerdtree/nerdtree'
Plug 'Xuyuanp/nerdtree-git-plugin'
Plug 'ctrlpvim/ctrlp.vim'
Plug 'easymotion/vim-easymotion'
Plug 'tpope/vim-surround' 
"Plug 'neoclide/coc.nvim',{'branch':'release'}
Plug 'lilydjwg/fcitx.vim'
Plug 'airblade/vim-gitgutter'
Plug 'lambdalisue/suda.vim' " do stuff like :sudowrite
Plug 'jiangmiao/auto-pairs'
Plugin 'zxqfl/tabnine-vim'
call plug#end()
" ===================== End of Plugin Settings =====================

" theme
colorscheme gruvbox
set background=dark
let g:airline_theme='deus'
let g:airline_powerline_fonts = 1  " 支持 powerline 字体
let g:bufferline_echo = 0

" ==
" == NERDTree
" ==
noremap tt :NERDTreeToggle<CR>
let NERDTreeMapOpenExpl = ""
let NERDTreeMapUpdir = "N"
let NERDTreeMapUpdirKeepOpen = "n"
let NERDTreeMapOpenSplit = ""
let NERDTreeMapOpenVSplit = "O"
let NERDTreeMapActivateNode = "o"
let NERDTreeMapOpenInTab = ""
let NERDTreeMapOpenInTabSilent = ""
let NERDTreeMapPreview = ""
let NERDTreeMapCloseDir = ""
let NERDTreeMapChangeRoot = "l"
let NERDTreeMapMenu = ","
let NERDTreeMapToggleHidden = "zh"
let NERDTreeMapRefrseh = ""


" ==
" == NERDTree-git
" ==
let g:NERDTreeIndicatorMapCustom = {
			\ "Modified"	: "✹",
			\ "Staged"		: "✚",
			\ "Untracked" : "✭",
			\ "Renamed"	 : "➜",
			\ "Unmerged"	: "═",
			\ "Deleted"	 : "✖",
			\ "Dirty"		 : "✗",
			\ "Clean"		 : "✔︎",
			\ "Unknown"	 : "?"
			\ }


" ==
" == easymotion 
" ==
nmap f <Plug>(easymotion-overwin-f)


" ===
" === suda.vim
" ===
"cnoreabbrev sw w suda://%
nnoremap <LEADER>sudo :w suda://%<CR>


" ===
" === coc 
" ===

"---normal mode--------------------
" 代码导航
nmap <silent> <LEADER>cgd <Plug>(coc-definition)
nmap <silent> <LEADER>cgy <Plug>(coc-type-definition)
nmap <silent> <LEADER>cgi <Plug>(coc-implementation)
nmap <silent> <LEADER>cgr <Plug>(coc-references)
                      
" 报错导航    
nmap <silent> <LEADER>c[ <Plug>(coc-diagnostic-prev)
nmap <silent> <LEADER>c] <Plug>(coc-diagnostic-next)

" 文档       
nnoremap <silenLEADERt> <LEADER>cd :call <SID>show_documentation()<CR>
function! s:show_documentation()
  if (index(['vim','help'], &filetype) >= 0)
    execute 'h '.expand('<cword>')
  else
    call CocAction('doHover')
  endif
endfunction

" 重命名
nmap <leader>crn <Plug>(coc-rename)
" 当前行触发CodeAction
nmap <leader>ca  <Plug>(coc-codeaction)
" 当前行触发AutoFix
nmap <leader>cff  <Plug>(coc-fix-current)

"---input mode----------------
" 使用Tab来触发补全, 将这放在其他插件之前
inoremap <silent><expr> <TAB>
      \ pumvisible() ? "\<C-n>" :
      \ <SID>check_back_space() ? "\<TAB>" :
      \ coc#refresh()
inoremap <expr><S-TAB> pumvisible() ? "\<C-p>" : "\<C-h>"
function! s:check_back_space() abort
  let col = col('.') - 1
  return !col || getline('.')[col - 1]  =~# '\s'
endfunction

"---setting -------------------------------
" 光标所在,高亮其引用
autocmd CursorHold * silent call CocActionAsync('highlight')
set updatetime=300
set signcolumn=yes
set shortmess+=c
set nowritebackup
" 格式化
command! -nargs=0 Format :call CocAction('format')
nmap <leader>cfm  <Plug>(coc-fix-current)
" 折叠
command! -nargs=? Fold :call     CocAction('fold', <f-args>)
" import管理
command! -nargs=0 OR   :call     CocAction('runCommand', 'editor.action.organizeImport')
" Add (Neo)Vim's native statusline support.
set statusline^=%{coc#status()}%{get(b:,'coc_current_function','')}