" Required:
call plug#begin(expand('~/.config/nvim/plugged'))

Plug 'fatih/vim-go', { 'do': ':GoUpdateBinaries' }
Plug 'neoclide/coc.nvim', {'do': 'yarn install --frozen-lockfile'}
Plug 'Shougo/vimproc.vim', {'do' : 'make'}
Plug 'scrooloose/nerdtree'
Plug 'jistr/vim-nerdtree-tabs'
Plug 'junegunn/fzf', { 'do': { -> fzf#install() } }
Plug 'itchyny/lightline.vim'
Plug 'tpope/vim-commentary'
Plug 'sheerun/vim-polyglot'
Plug 'tpope/vim-fugitive'
Plug 'tpope/vim-rhubarb'
Plug 'Raimondi/delimitMate'
Plug 'voldikss/vim-floaterm'
Plug 't9md/vim-choosewin'
Plug 'tomasr/molokai'
Plug 'xolox/vim-misc'
Plug 'xolox/vim-session'
Plug 'Yggdroot/LeaderF', { 'do': ':LeaderfInstallCExtension' }

call plug#end()
set clipboard=unnamedplus
set clipboard+=unnamedplus
command! -nargs=0 Prettier :CocCommand prettier.formatFile

syntax on
set ruler
set relativenumber
set scrolloff=12
set number

" session management
let g:session_directory = "~/.config/nvim/session"
let g:session_autoload = "yes"
let g:session_autosave = "yes"
let g:session_command_aliases = 1
let g:session_autosave_periodic = 1

"" Lightline
set tabline=%!lightline#tabline()
set laststatus=2
let g:lightline = {
      \ 'active': {
      \   'left': [ [ 'mode', 'paste' ],
      \             [ 'cocstatus','currentfunction','gitbranch', 'readonly', 'filename', 'modified' ] ]
      \ },
      \ 'component_function': {
      \   'cocstatus': 'coc#status',
      \   'currentfunction': 'CocCurrentFunction',
      \   'gitbranch': 'FugitiveHead'
      \ }}
"" Color
set termguicolors
colorscheme molokai

let no_buffers_menu=1
set mousemodel=popup
set t_Co=256
set guioptions=egmrti
set gfn=Monospace\ 10

highlight Cursor guifg=white guibg=red
highlight iCursor guifg=white guibg=red
set guicursor=n-v-c:block-Cursor
set guicursor+=i:ver100-iCursor
set guicursor+=n-v-c:blinkon0
set guicursor+=i:blinkwait10

" esearch
hi ESearchMatch ctermfg=black ctermbg=white guifg=#000000 guibg=yellow
"" Map leader to ,
let mapleader=','

"" Tabs. May be overridden by autocmd rules
set tabstop=4
set softtabstop=0
set shiftwidth=4
set expandtab

"" Split
noremap <Leader>h :<C-u>split<CR>
noremap <Leader>v :<C-u>vsplit<CR>

"" Git
set diffopt+=horizontal
noremap <Leader>ga :Gwrite<CR>
noremap <Leader>gc :Git commit<CR>
noremap <Leader>gsh :Git push<CR>
noremap <Leader>gll :Git pull<CR>
noremap <Leader>gst :Git<CR>
noremap <Leader>gb :Git blame<CR>
noremap <Leader>gd :Git diff<CR>
noremap <Leader>gr :Git remove<CR>"
noremap <Leader>zz :!cargo run<CR>
noremap <Leader>zx :!cargo build<CR>

" vim choosewin
nmap <Space><Space> <Plug>(choosewin)

"" MyCustom
set noswapfile
set autoread
set autowrite
au CursorHold,CursorHoldI * checktime
noremap <Leader><CR> :nohl<CR>
noremap <Leader>w :w<CR> \| :SaveSession<CR>
noremap <Leader>rp :%s///g<Left><Left><Left>
noremap qq :qa!<CR>
noremap <C-s> <C-u>
noremap <F4> <ESC>:tabnext<CR>
noremap <F5> <ESC>:tabnew<CR>
imap <F4> <ESC>:tabnext<CR>
imap <F5> <ESC>:tabnew<CR>
vmap <F4> <ESC>:tabnext<CR>
vmap <F5> <ESC>:tabnew<CR>
noremap <Leader>sps :SpSearch<Space>
""" Floatterm
let g:floaterm_keymap_new    = '<F7>'
let g:floaterm_keymap_prev   = '<F8>'
let g:floaterm_keymap_next   = '<F9>'
let g:floaterm_keymap_toggle = '0'
let g:floaterm_width = 0.8
let g:floaterm_height = 0.8
" hi Floaterm guibg=

"" NERDTree configuration
let g:NERDTreeChDirMode=2
let g:NERDTreeIgnore=['\.rbc$', '\~$', '\.pyc$', '\.db$', '\.sqlite$', '__pycache__','node_modules','target']
let g:NERDTreeSortOrder=['^__\.py$', '\/$', '*', '\.swp$', '\.bak$', '\~$']
let g:NERDTreeShowBookmarks=1
let g:nerdtree_tabs_focus_on_files=1
let g:NERDTreeMapOpenInTabSilent = '<RightMouse>'
let g:NERDTreeWinSize = 30
set wildignore+=*/tmp/*,*.so,*.swp,*.zip,*.pyc,*.db,*.sqlite,target/*
nnoremap <silent> <F2> :NERDTreeFind<CR>
nnoremap <silent> <F3> :NERDTreeToggle<CR>

"" fzf.vim
set wildmode=list:longest,list:full
set wildignore+=*.o,*.obj,.git,*.rbc,*.pyc,__pycache__,node_modules/*,dist/*,target/*

" " ripgrep
if executable('rg')
    let $FZF_DEFAULT_COMMAND = 'rg --files --hidden --follow --glob "!{.git/*,target/*}"'
  set grepprg=rg\ --vimgrep
  command! -bang -nargs=* Find call fzf#vim#grep('rg --column --line-number --no-heading --fixed-strings --ignore-case --hidden --follow --glob "!{.git/*,node_modules/*,target/*}" --color "always" '.shellescape(<q-args>).'| tr -d "\017"', 1, <bang>0)
endif

cnoremap <C-P> <C-R>=expand("%:p:h") . "/" <CR>
nnoremap <silent> <leader>b :Buffers<CR>
nnoremap <silent> <leader>e :FZF -m<CR>

" -------------------------------------------------------------------------------------------------
" coc.nvim default settings
" -------------------------------------------------------------------------------------------------

" if hidden is not set, TextEdit might fail.
set hidden
" Better display for messages
set cmdheight=2
" Smaller updatetime for CursorHold & CursorHoldI
set updatetime=300
set ttimeoutlen=50
" 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! CocCurrentFunction()
    return get(b:, 'coc_current_function', '')
endfunction


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

" Remap keys for gotos
" nmap <silent> gd <Plug>(coc-definition)
nmap <silent> gd :<C-u>call CocActionAsync('jumpDefinition')<CR>
nmap <silent> gy <Plug>(coc-type-definition)
nmap <silent> gi <Plug>(coc-implementation)
nmap <silent> gr <Plug>(coc-references)

" Use U to show documentation in preview window
nnoremap <silent> U :call <SID>show_documentation()<CR>

" Remap for rename current word
nmap <leader>rn <Plug>(coc-rename)
nnoremap <leader>prw :CocSearch <C-R>=expand("<cword>")<CR><CR>

" Remap for format selected region
vmap <leader>f  <Plug>(coc-format-selected)
nmap <leader>f  <Plug>(coc-format-selected)
" 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>
" disable vim-go :GoDef short cut (gd)
" this is handled by LanguageClient [LC]
let g:go_def_mapping_enabled = 0



" go
" vim-go
" run :GoBuild or :GoTestCompile based on the go file
function! s:build_go_files()
  let l:file = expand('%')
  if l:file =~# '^\f\+_test\.go$'
    call go#test#Test(0, 1)
  elseif l:file =~# '^\f\+\.go$'
    call go#cmd#Build(0)
  endif
endfunction

let g:go_list_type = "quickfix"
let g:go_fmt_command = "goimports"
let g:go_fmt_fail_silently = 1

let g:go_highlight_types = 1
let g:go_highlight_fields = 1
let g:go_highlight_functions = 1
let g:go_highlight_methods = 1
let g:go_highlight_operators = 1
let g:go_highlight_build_constraints = 1
let g:go_highlight_structs = 1
let g:go_highlight_generate_tags = 1
let g:go_highlight_space_tab_error = 0
let g:go_highlight_array_whitespace_error = 0
let g:go_highlight_trailing_whitespace_error = 0
let g:go_highlight_extra_types = 1

autocmd BufNewFile,BufRead *.go setlocal noexpandtab tabstop=4 shiftwidth=4 softtabstop=4

augroup completion_preview_close
  autocmd!
  if v:version > 703 || v:version == 703 && has('patch598')
    autocmd CompleteDone * if !&previewwindow && &completeopt =~ 'preview' | silent! pclose | endif
  endif
augroup END

augroup go

  au!
  au Filetype go command! -bang A call go#alternate#Switch(<bang>0, 'edit')
  au Filetype go command! -bang AV call go#alternate#Switch(<bang>0, 'vsplit')
  au Filetype go command! -bang AS call go#alternate#Switch(<bang>0, 'split')
  au Filetype go command! -bang AT call go#alternate#Switch(<bang>0, 'tabe')

  au FileType go nmap <Leader>dd <Plug>(go-def-vertical)
  au FileType go nmap <Leader>dv <Plug>(go-doc-vertical)
  au FileType go nmap <Leader>db <Plug>(go-doc-browser)

  au FileType go nmap <leader>r  <Plug>(go-run)
  au FileType go nmap <leader>t  <Plug>(go-test)
  au FileType go nmap <Leader>gt <Plug>(go-coverage-toggle)
  au FileType go nmap <Leader>i <Plug>(go-info)
  au FileType go nmap <silent> <Leader>l <Plug>(go-metalinter)
  au FileType go nmap <C-g> :GoDecls<cr>
  au FileType go nmap <leader>dr :GoDeclsDir<cr>
  au FileType go imap <C-g> <esc>:<C-u>GoDecls<cr>
  au FileType go imap <leader>dr <esc>:<C-u>GoDeclsDir<cr>
  au FileType go nmap <leader>rb :<C-u>call <SID>build_go_files()<CR>

augroup END

" don't show the help in normal mode
let g:Lf_HideHelp = 1
let g:Lf_UseCache = 0
let g:Lf_UseVersionControlTool = 0
let g:Lf_IgnoreCurrentBufferName = 1
" popup mode
let g:Lf_WindowPosition = 'popup'
let g:Lf_PreviewInPopup = 1
let g:Lf_StlSeparator = { 'left': "\ue0b0", 'right': "\ue0b2", 'font': "UbuntuMono Nerd Font" }
let g:Lf_PreviewResult = {'Function': 0, 'BufTag': 0 }

let g:Lf_ShortcutF = "<leader>ff"
noremap <leader>fb :<C-U><C-R>=printf("Leaderf buffer %s", "")<CR><CR>
noremap <leader>fm :<C-U><C-R>=printf("Leaderf mru %s", "")<CR><CR>
noremap <leader>ft :<C-U><C-R>=printf("Leaderf bufTag %s", "")<CR><CR>
noremap <leader>fl :<C-U><C-R>=printf("Leaderf line %s", "")<CR><CR>

noremap <C-B> :<C-U><C-R>=printf("Leaderf! rg --current-buffer -e %s ", expand("<cword>"))<CR>
noremap <C-F> :<C-U><C-R>=printf("Leaderf! rg -e %s ", expand("<cword>"))<CR>
" search visually selected text literally
xnoremap gf :<C-U><C-R>=printf("Leaderf! rg -F -e %s ", leaderf#Rg#visual())<CR>
noremap go :<C-U>Leaderf! rg --recall<CR>

" should use `Leaderf gtags --update` first
let g:Lf_GtagsAutoGenerate = 0
let g:Lf_Gtagslabel = 'native-pygments'
noremap <leader>fr :<C-U><C-R>=printf("Leaderf! gtags -r %s --auto-jump", expand("<cword>"))<CR><CR>
noremap <leader>fd :<C-U><C-R>=printf("Leaderf! gtags -d %s --auto-jump", expand("<cword>"))<CR><CR>
noremap <leader>fo :<C-U><C-R>=printf("Leaderf! gtags --recall %s", "")<CR><CR>
noremap <leader>fn :<C-U><C-R>=printf("Leaderf gtags --next %s", "")<CR><CR>
noremap <leader>fp :<C-U><C-R>=printf("Leaderf gtags --previous %s", "")<CR><CR>