" Specify a directory for plugins default is ~/.config/nvim/init.vim

call plug#begin('~/.vim/plugged') 
Plug 'neoclide/coc.nvim', {'branch': 'release'} 
Plug 'scrooloose/nerdtree' "Plug 'tsony-tsonev/nerdtree-git-plugin'
Plug 'Xuyuanp/nerdtree-git-plugin'
Plug 'tiagofumo/vim-nerdtree-syntax-highlight'
Plug 'ryanoasis/vim-devicons'
Plug 'mattn/emmet-vim'
Plug 'ap/vim-css-color'
Plug 'airblade/vim-gitgutter'
Plug 'ctrlpvim/ctrlp.vim' " fuzzy find files
Plug 'junegunn/fzf', { 'do': { -> fzf#install() } }
Plug 'preservim/nerdcommenter'
Plug 'Yggdroot/indentLine'
Plug 'sheerun/vim-polyglot'
Plug 'mg979/vim-visual-multi', {'branch': 'master'}
Plug 'iamcco/markdown-preview.nvim', {'do': { -> mkdp#util#install()  }}
Plug 'luochen1990/rainbow'
Plug 'simeji/winresizer'
Plug 'yaegassy/coc-volar'
Plug '907th/vim-auto-save'
Plug 'itchyny/lightline.vim'

"Plug 'HerringtonDarkholme/yats.vim' " TS Syntax

" Initialize plugin system
call plug#end()

"Toggle NerdTree with Ctrl + l
nmap <C-b> :NERDTreeToggle<CR>

" Start NERDTree. If a file is specified, move the cursor to its window.
autocmd StdinReadPre * let s:std_in=1
autocmd VimEnter * NERDTree | if argc() > 0 || exists("s:std_in") | wincmd p | endif

"NerdTree opens on right
let g:NERDTreeWinPos = "right"

"Adjust NerdTree size
let g:NERDTreeWinSize=28

"Show hidden files in NERDTree
let NERDTreeShowHidden=1

" Exit Vim if NERDTree is the only window remaining in the only tab.
autocmd BufEnter * if tabpagenr('$') == 1 && winnr('$') == 1 && exists('b:NERDTree') && b:NERDTree.isTabTree() | quit | endif

"set colored brackets via rainbow"
let g:rainbow_active = 1 "set to 0 if you want to enable it later via :RainbowToggle"

"set indentLine to nvim colorscheme
"let g:indentLine_setColors = 0

"enable AutoSave on start
let g:auto_save = 1

"silence AutoSave messages
let g:auto_save_silent = 1

let g:webdevicons_enable = 1
let g:webdevicons_enable_nerdtree = 1

let g:NERDTreeGitStatusWithFlags = 1
"let g:WebDevIconsUnicodeDecorateFolderNodes = 1
"let g:NERDTreeGitStatusNodeColorization = 1
"let g:NERDTreeColorMapCustom = {
    "\ "Staged"    : "#0ee375",  
    "\ "Modified"  : "#d9bf91",  
    "\ "Renamed"   : "#51C9FC",  
    "\ "Untracked" : "#FCE77C",  
    "\ "Unmerged"  : "#FC51E6",  
    "\ "Dirty"     : "#FFBD61",  
    "\ "Clean"     : "#/87939A",   
    "\ "Ignored"   : "#808080"   
    "\ }                         

let g:NERDTreeIgnore = ['^node_modules$']

" do not close the markdown preview tab when switching to other buffers
let g:mkdp_auto_close = 0

" Create Default Mappings for NerdCommenter
let g:NERDCreateDefaultMappings = 1

" Toggle NERDCommenter with Ctrl + c
:map <C-c> <Plug>NERDCommenterToggle

" Add spaces after NerdCommenter delimiters by default
let g:NERDSpaceDelims = 1

" <Ctrl-x> redraws the screen and removes any search highlighting
nnoremap <silent> <C-x> :nohl<CR><C-x>

"Toggle Multi-Cursor with j or k
nmap <C-j> <C-Down>
nmap <C-k> <C-Up>

" Use ctrl- [hjkl] to select the active split!
"nmap <silent> <c-k> :wincmd k<CR> 
"nmap <silent> <c-j> :wincmd j<CR>
nmap <silent> <c-h> :wincmd h<CR>
nmap <silent> <c-l> :wincmd l<CR>

" Only lightline shows on bottom status board 
set noshowmode

" Set lightline colorscheme
let g:lightline = {'colorscheme': 'one', 'active': { 'left': [['mode', 'paste'], ['gitbranch', 'readonly', 'filename', 'modified']]}, 'component_function': {'gitbranch': 'FugitiveHead'}}

" Custom keybindings

" keybind map Ctrl + m to :MarkdownPreview
nmap <C-m> <Plug>MarkdownPreviewToggle

"Escape Insert Mode with ii 
imap ii <Esc>

" Vertically center document when entering Insert mode
autocmd InsertEnter * norm zz

" Alias replace all to S
nnoremap S :%s///gI<Left><Left><Left><Left>

" Fix Splitting
set splitbelow
set splitright

"Insert a console.log()
inoremap cll console.log()<esc>i

autocmd BufEnter *.{js,jsx,ts,tsx,vue} :syntax sync fromstart
autocmd BufLeave *.{js,jsx,ts,tsx,vue} :syntax sync clear

" ctrlp
let g:ctrlp_user_command = ['.git/', 'git --git-dir=%s/.git ls-files -oc --exclude-standard']

" j/k will move virtual lines (lines that wrap)
noremap <silent> <expr> j (v:count == 0 ? 'gj' : 'j')
noremap <silent> <expr> k (v:count == 0 ? 'gk' : 'k')

"remap leader key to comma
let mapleader=","

"set relativenumber
set number 

set cursorcolumn
set cursorline
set ttyfast
set mouse=a
set autoindent
set smarttab
set ignorecase
set cindent
set tabstop=8
set softtabstop=0
set shiftwidth=4
" always uses spaces instead of tab characters
set expandtab

if(has("termguicolors"))
  set termguicolors
endif

syntax enable
"colorscheme gruvbox
"colorscheme menguless
colorscheme nord
"colorscheme molokai

"Enable transparency
hi Normal guibg=NONE ctermbg=NONE

"Enable Comments with Italics (below selected colorscheme)
highlight Comment cterm=italic gui=italic

" sync open file with NERDTree
" " Check if NERDTree is open or active
function! IsNERDTreeOpen()        
  return exists("t:NERDTreeBufName") && (bufwinnr(t:NERDTreeBufName) != -1)
endfunction

" Call NERDTreeFind iff NERDTree is active, current window contains a modifiable
" file, and we're not in vimdiff
function! SyncTree()
  if &modifiable && IsNERDTreeOpen() && strlen(expand('%')) > 0 && !&diff
    NERDTreeFind
    wincmd p
  endif
endfunction

" Highlight currently open buffer in NERDTree
autocmd BufEnter * call SyncTree()

" coc config
let g:coc_global_extensions = [
  \ 'coc-snippets',
  \ 'coc-pairs',
  \ 'coc-tsserver',
  \ 'coc-eslint', 
  "\ 'coc-prettier', 
  \ 'coc-json', 
  \ ]
" from readme
" if hidden is not set, TextEdit might fail.
set hidden " Some servers have issues with backup files, see #649 set nobackup set nowritebackup 

" Set the height of the status line down at the bottom
set cmdheight=1 
" Set the amount of characters you get back from status/error messages
set updatetime=300

" don't give |ins-completion-menu| messages.
set shortmess+=c

" always show signcolumns
set signcolumn=yes

" Use tab for trigger completion with characters ahead and navigate.
" Use command ':verbose imap <tab>' to make sure tab is not mapped by other plugin.
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

" Use <c-space> to trigger completion.
inoremap <silent><expr> <c-space> coc#refresh()

" Use <cr> to confirm completion, `<C-g>u` means break undo chain at current position.
" Coc only does snippet and additional edit on confirm.
inoremap <expr> <cr> pumvisible() ? "\<C-y>" : "\<C-g>u\<CR>"
" Or use `complete_info` if your vim support it, like:
" inoremap <expr> <cr> complete_info()["selected"] != "-1" ? "\<C-y>" : "\<C-g>u\<CR>"

" Use `[g` and `]g` to navigate diagnostics
nmap <silent> [g <Plug>(coc-diagnostic-prev)
nmap <silent> ]g <Plug>(coc-diagnostic-next)

" Remap keys for gotos
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)

" Use K to show documentation in preview window
nnoremap <silent> K :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

" Highlight symbol under cursor on CursorHold
autocmd CursorHold * silent call CocActionAsync('highlight')

" Remap for rename current word
nmap <F2> <Plug>(coc-rename)

" Remap for format selected region
xmap <leader>f  <Plug>(coc-format-selected)
nmap <leader>f  <Plug>(coc-format-selected)

augroup mygroup
  autocmd!
  " Setup formatexpr specified filetype(s).
  autocmd FileType typescript,json setl formatexpr=CocAction('formatSelected')
  " Update signature help on jump placeholder
  autocmd User CocJumpPlaceholder call CocActionAsync('showSignatureHelp')
augroup end

" Remap for do codeAction of selected region, ex: `<leader>aap` for current paragraph
xmap <leader>a  <Plug>(coc-codeaction-selected)
nmap <leader>a  <Plug>(coc-codeaction-selected)

" Remap for do codeAction of current line
nmap <leader>ac  <Plug>(coc-codeaction)
" Fix autofix problem of current line
nmap <leader>qf  <Plug>(coc-fix-current)

" Create mappings for function text object, requires document symbols feature of languageserver.
xmap if <Plug>(coc-funcobj-i)
xmap af <Plug>(coc-funcobj-a)
omap if <Plug>(coc-funcobj-i)
omap af <Plug>(coc-funcobj-a)

" Use <C-d> for select selections ranges, needs server support, like: coc-tsserver, coc-python
"nmap <silent> <C-d> <Plug>(coc-range-select)
"xmap <silent> <C-d> <Plug>(coc-range-select)
"xmap <silent> <S-TAB> <Plug>(coc-range-select-backword)

" Use `:Format` to format current buffer
command! -nargs=0 Format :call CocAction('format')

" Use `:Fold` to fold current buffer
command! -nargs=? Fold :call     CocAction('fold', <f-args>)

" use `:OR` for organize import of current buffer
command! -nargs=0 OR   :call     CocAction('runCommand', 'editor.action.organizeImport')

" Add status line support, for integration with other plugin, checkout `:h coc-status`
set statusline^=%{coc#status()}%{get(b:,'coc_current_function','')}

" Shortcut mappings for FZF
nnoremap <silent> <leader>f :FZF<cr>
nnoremap <silent> <leader>F :FZF<cr>

" Using CocList
" Show all diagnostics
nnoremap <silent> <space>a  :<C-u>CocList diagnostics<cr>
" Manage extensions
nnoremap <silent> <space>e  :<C-u>CocList extensions<cr>
" Show commands
nnoremap <silent> <space>c  :<C-u>CocList commands<cr>
" Find symbol of current document
nnoremap <silent> <space>o  :<C-u>CocList outline<cr>
" Search workspace symbols
nnoremap <silent> <space>s  :<C-u>CocList -I symbols<cr>
" Do default action for next item.
nnoremap <silent> <space>j  :<C-u>CocNext<CR>
" Do default action for previous item.
nnoremap <silent> <space>k  :<C-u>CocPrev<CR>
" Resume latest coc list
nnoremap <silent> <space>p  :<C-u>CocListResume<CR>