.vimrc

" for fzf search
set rtp+=/usr/local/opt/fzf

" Make vim copy-pastable outside of vim environment
" on Mac you must brew install reattach-to-user-namespace
set clipboard=unnamed

" ignore case for search
set ignorecase

execute pathogen#infect()
syntax on
filetype plugin indent on

let mapleader=";"
set number

" tabsize
:set tabstop=2
:set shiftwidth=2
:set expandtab


" leader+w - close everything except active window
nnoremap <leader>w <c-w>o

" resize window pane ===================================================== "
nnoremap <silent> <leader>] :exe "vertical resize +25"<CR>
nnoremap <silent> <leader>[ :exe "vertical resize -25"<CR>

" NERDTree ================================================================ "
" open a NERDTree automatically when vim starts up if no files were specified
autocmd StdinReadPre * let s:std_in=1
autocmd VimEnter * if argc() == 0 && !exists("s:std_in") | NERDTree | endif

" show hidden folders in Nerdtree
let NERDTreeShowHidden=1
let NERDTreeMinimalUI = 1
let NERDTreeDirArrows = 1
" fix weird ^G at beginning of file names in NERDtree folder list
let g:NERDTreeNodeDelimiter = "\u00a0"

" close vim if the only window left open is a NERDTree
"autocmd bufenter * if (winnr("$") == 1 && exists("b:NERDTree") && b:NERDTree.isTabTree()) | q | endif

autocmd vimenter * NERDTree
"" Control N to toggle Nerdtree
map <C-n> :NERDTreeToggle<CR>
"=========================================================================="

"destroy productivity settings, destroy noob ==========================="
"" prevents arrow keys
""map <up> <nop>
""jmap <down> <nop>
""map <left> <nop> 
""map <right> <nop>
"========================================================================"

 " toggle highlights from search/find
 nnoremap <silent> <leader>l :set list!<CR>
"  nnoremap <silent> <leader>h :set hlsearch! hlsearch?<CR>
 nnoremap <silent> <leader>h :noh<CR>
 
" show hidden chars
set list
" set listchars=tab:»\ ,extends:›,precedes:‹,nbsp:·,trail:·,eol:¬

" toggle hidden listchars on/off
nnoremap <silent> <leader>l :set list!<CR>

" maps ,ev to open .vimrc
nmap <silent> <leader>ev :e $MYVIMRC<CR>
" maps ,sv to source .vimrc
nnoremap <leader>sv :source $MYVIMRC<cr>

" set colorscheme
colorscheme gruvbox
set hlsearch
hi Search ctermbg=LightGreen
hi Search ctermfg=Red

" toggle higlights of character matches from search on/off
nnoremap <silent> <leader>h :set hlsearch! hlsearch?<CR>

" quick search on whatever you selected in visual mode by typeing '//'
vnoremap // y/<C-R>"<CR>

"Invisible character colors
hi NonText guifg=#cccccc
hi SpecialKey guifg=#cccccc

set t_Co=256
set background=dark

" setup fzf to work with silver searcher
let $FZF_DEFAULT_COMMAND = 'ag --hidden --ignore .git -l -g ""'
nnoremap <C-p> :Files<CR>
nnoremap <C-b> :Buffer<CR>
nnoremap <C-o> :Ag<CR>

let $FZF_DEFAULT_COMMAND = 'ag -l --path-to-ignore ~/.ignore --hidden --nocolor -g ""'

 "" preview windows within search results ==================================
command! -bang -nargs=? -complete=dir Files
  \ call fzf#vim#files(<q-args>, fzf#vim#with_preview('right:40%'), <bang>0)
                        
command! -bang -nargs=* Ag
  \ call fzf#vim#ag(<q-args>,  fzf#vim#with_preview('right:40%'), <bang>0)
  
" ==========================================================================

map <C-j> <C-W>j
map <C-k> <C-W>k
map <C-h> <C-W>h
map <C-l> <C-W>l

"" on insert mode press "jk" to exit out to normal mode
inoremap jk <esc>

" ale linting =========================================="
let g:ale_sign_column_always = 1
let g:ale_fixers = {
\   'javascript': ['eslint'],
\}
let g:ale_fix_on_save = 1
let g:ale_lint_on_text_changed = 'never'
"======================================================="


"Mode Settings (changes cursor based on Insert/Normal mode)

let &t_SI.="\e[5 q" "SI = INSERT mode
let &t_SR.="\e[4 q" "SR = REPLACE mode
let &t_EI.="\e[1 q" "EI = NORMAL mode (ELSE)

"Cursor settings:

"  1 -> blinking block
"  2 -> solid block 
"  3 -> blinking underscore
"  4 -> solid underscore
"  5 -> blinking vertical bar
"  6 -> solid vertical bar

"" make status line of active window more obvious
hi StatusLine   ctermfg=15  guifg=#ffffff ctermbg=239 guibg=#4e4e4e cterm=bold gui=bold
hi StatusLineNC ctermfg=249 guifg=#b2b2b2 ctermbg=237 guibg=#3a3a3a cterm=none gui=none"



"=============================================================="
"============ coc.nvim settings ==============================="
"=============================================================="
"" Set internal encoding of vim, not needed on neovim, since coc.nvim using some
" unicode characters in the file autoload/float.vim
set encoding=utf-8

" TextEdit might fail if hidden is not set.
set hidden

" Some servers have issues with backup files, see #649.
set nobackup
set nowritebackup

" Give more space for displaying messages.
set cmdheight=2

" Having longer updatetime (default is 4000 ms = 4 s) leads to noticeable
" delays and poor user experience.
set updatetime=300

" Don't pass messages to |ins-completion-menu|.
set shortmess+=c

" Always show the signcolumn, otherwise it would shift the text each time
" diagnostics appear/become resolved.
if has("nvim-0.5.0") || has("patch-8.1.1564")
  " Recently vim can merge signcolumn and number column into one
  set signcolumn=number
else
  set signcolumn=yes
endif

" Use tab for trigger completion with characters ahead and navigate.
" NOTE: Use command ':verbose imap <tab>' to make sure tab is not mapped by
" other plugin before putting this into your config.
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.
if has('nvim')
  inoremap <silent><expr> <c-space> coc#refresh()
else
  inoremap <silent><expr> <c-@> coc#refresh()
endif

" Make <CR> auto-select the first completion item and notify coc.nvim to
" format on enter, <cr> could be remapped by other vim plugin
inoremap <silent><expr> <cr> pumvisible() ? coc#_select_confirm()
                              \: "\<C-g>u\<CR>\<c-r>=coc#on_enter()\<CR>"

" Use `[g` and `]g` to navigate diagnostics
" Use `:CocDiagnostics` to get all diagnostics of current buffer in location list.
nmap <silent> [g <Plug>(coc-diagnostic-prev)
nmap <silent> ]g <Plug>(coc-diagnostic-next)

" GoTo code navigation.
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>')
  elseif (coc#rpc#ready())
    call CocActionAsync('doHover')
  else
    execute '!' . &keywordprg . " " . expand('<cword>')
  endif
endfunction

" Highlight the symbol and its references when holding the cursor.
autocmd CursorHold * silent call CocActionAsync('highlight')

" Symbol renaming.
nmap <leader>rn <Plug>(coc-rename)

" Formatting selected code.
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

" Applying codeAction to the selected region.
" Example: `<leader>aap` for current paragraph
xmap <leader>a  <Plug>(coc-codeaction-selected)
nmap <leader>a  <Plug>(coc-codeaction-selected)

" Remap keys for applying codeAction to the current buffer.
nmap <leader>ac  <Plug>(coc-codeaction)
" Apply AutoFix to problem on the current line.
nmap <leader>qf  <Plug>(coc-fix-current)

" Run the Code Lens action on the current line.
nmap <leader>cl  <Plug>(coc-codelens-action)

" Map function and class text objects
" NOTE: Requires 'textDocument.documentSymbol' support from the language server.
xmap if <Plug>(coc-funcobj-i)
omap if <Plug>(coc-funcobj-i)
xmap af <Plug>(coc-funcobj-a)
omap af <Plug>(coc-funcobj-a)
xmap ic <Plug>(coc-classobj-i)
omap ic <Plug>(coc-classobj-i)
xmap ac <Plug>(coc-classobj-a)
omap ac <Plug>(coc-classobj-a)

" Remap <C-f> and <C-b> for scroll float windows/popups.
if has('nvim-0.4.0') || has('patch-8.2.0750')
  nnoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? coc#float#scroll(1) : "\<C-f>"
  nnoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? coc#float#scroll(0) : "\<C-b>"
  inoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? "\<c-r>=coc#float#scroll(1)\<cr>" : "\<Right>"
  inoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? "\<c-r>=coc#float#scroll(0)\<cr>" : "\<Left>"
  vnoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? coc#float#scroll(1) : "\<C-f>"
  vnoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? coc#float#scroll(0) : "\<C-b>"
endif

" Use CTRL-S for selections ranges.
" Requires 'textDocument/selectionRange' support of language server.
nmap <silent> <C-s> <Plug>(coc-range-select)
xmap <silent> <C-s> <Plug>(coc-range-select)

" Add `:Format` command to format current buffer.
command! -nargs=0 Format :call CocActionAsync('format')

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

" Add `:OR` command for organize imports of the current buffer.
command! -nargs=0 OR   :call     CocActionAsync('runCommand', 'editor.action.organizeImport')

" Add (Neo)Vim's native statusline support.
" NOTE: Please see `:h coc-status` for integrations with external plugins that
" provide custom statusline: lightline.vim, vim-airline.
" set statusline+=%{coc#status()}%{get(b:,'coc_current_function','')}
set statusline+="%f%m%r%h%w [%Y] [0x%02.2B]%< %F%=%4v,%4l %3p%% of %L"

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