"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Important:
"       This requires that you install https://github.com/amix/vimrc !
"
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""


""""""""""""""""""""""""""""""
" => Load pathogen paths
""""""""""""""""""""""""""""""
" let s:vim_runtime = expand('<sfile>:p:h')."/.."
" call pathogen#infect(s:vim_runtime.'/sources_forked/{}')
" call pathogen#infect(s:vim_runtime.'/sources_non_forked/{}')
" call pathogen#infect(s:vim_runtime.'/my_plugins/{}')
" call pathogen#helptags()

""""""""""""""""""""""""""""""
" => Load plug 
""""""""""""""""""""""""""""""
call plug#begin()

Plug 'jlanzarotta/bufexplorer'
Plug 'ctrlpvim/ctrlp.vim'
Plug 'scrooloose/nerdtree'
Plug 'neoclide/coc.nvim'
Plug 'vim-scripts/peaksea'

call plug#end()



""""""""""""""""""""""""""""""
" => bufExplorer plugin
""""""""""""""""""""""""""""""
let g:bufExplorerDefaultHelp=0
let g:bufExplorerShowRelativePath=1
let g:bufExplorerFindActive=1
let g:bufExplorerSortBy='name'
map <leader>o :BufExplorer<cr>


""""""""""""""""""""""""""""""
" => MRU plugin
""""""""""""""""""""""""""""""
" let MRU_Max_Entries = 400
" map <leader>f :MRU<CR>


""""""""""""""""""""""""""""""
" => YankStack
""""""""""""""""""""""""""""""
" let g:yankstack_yank_keys = ['y', 'd']

" nmap <C-p> <Plug>yankstack_substitute_older_paste
" nmap <C-n> <Plug>yankstack_substitute_newer_paste


""""""""""""""""""""""""""""""
" => CTRL-P
""""""""""""""""""""""""""""""
let g:ctrlp_working_path_mode = 0

" Quickly find and open a file in the current working directory
let g:ctrlp_map = '<C-f>'
map <leader>j :CtrlP<cr>

" Quickly find and open a buffer
map <leader>b :CtrlPBuffer<cr>

let g:ctrlp_max_height = 20
let g:ctrlp_custom_ignore = 'node_modules\|^\.DS_Store\|^\.git\|^\.coffee'


""""""""""""""""""""""""""""""
" => ZenCoding
""""""""""""""""""""""""""""""
" Enable all functions in all modes
" let g:user_zen_mode='a'


""""""""""""""""""""""""""""""
" => snipMate (beside <TAB> support <CTRL-j>)
""""""""""""""""""""""""""""""
" ino <C-j> <C-r>=snipMate#TriggerSnippet()<cr>
" snor <C-j> <esc>i<right><C-r>=snipMate#TriggerSnippet()<cr>
" let g:snipMate = { 'snippet_version' : 1 }


""""""""""""""""""""""""""""""
" => Vim grep
""""""""""""""""""""""""""""""
" let Grep_Skip_Dirs = 'RCS CVS SCCS .svn generated'
" set grepprg=/bin/grep\ -nH


"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => Nerd Tree
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
let g:NERDTreeWinPos = "right"
let NERDTreeShowHidden=0
let NERDTreeIgnore = ['\.pyc$', '__pycache__']
let g:NERDTreeWinSize=35
map <leader>nn :NERDTreeToggle<cr>
map <leader>nb :NERDTreeFromBookmark<Space>
map <leader>nf :NERDTreeFind<cr>


"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => vim-multiple-cursors
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
let g:multi_cursor_use_default_mapping=0

" Default mapping
" let g:multi_cursor_start_word_key      = '<C-s>'
" let g:multi_cursor_select_all_word_key = '<A-s>'
" let g:multi_cursor_start_key           = 'g<C-s>'
" let g:multi_cursor_select_all_key      = 'g<A-s>'
" let g:multi_cursor_next_key            = '<C-s>'
" let g:multi_cursor_prev_key            = '<C-p>'
" let g:multi_cursor_skip_key            = '<C-x>'
" let g:multi_cursor_quit_key            = '<Esc>'


"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => surround.vim config
" Annotate strings with gettext 
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" vmap Si S(i_<esc>f)
" au FileType mako vmap Si S"i${ _(<esc>2f"a) }<esc>


"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => lightline
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
let g:lightline = {
      \ 'colorscheme': 'wombat',
      \ 'active': {
      \   'left': [ ['mode', 'paste'],
      \             ['fugitive', 'readonly', 'filename', 'modified'] ],
      \   'right': [ [ 'lineinfo' ], ['percent'] ]
      \ },
      \ 'component': {
      \   'readonly': '%{&filetype=="help"?"":&readonly?"🔒":""}',
      \   'modified': '%{&filetype=="help"?"":&modified?"+":&modifiable?"":"-"}',
      \   'fugitive': '%{exists("*FugitiveHead")?FugitiveHead():""}'
      \ },
      \ 'component_visible_condition': {
      \   'readonly': '(&filetype!="help"&& &readonly)',
      \   'modified': '(&filetype!="help"&&(&modified||!&modifiable))',
      \   'fugitive': '(exists("*FugitiveHead") && ""!=FugitiveHead())'
      \ },
      \ 'separator': { 'left': ' ', 'right': ' ' },
      \ 'subseparator': { 'left': ' ', 'right': ' ' }
      \ }

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => Vimroom
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" let g:goyo_width=100
" let g:goyo_margin_top = 2
" let g:goyo_margin_bottom = 2
" nnoremap <silent> <leader>z :Goyo<cr>


"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => Ale (syntax checker and linter)
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
let g:ale_linters = {
\   'javascript': ['eslint'],
\   'python': ['flake8'],
\   'go': ['go', 'golint', 'errcheck']
\}

nmap <silent> <leader>a <Plug>(ale_next_wrap)

" Disabling highlighting
let g:ale_set_highlights = 0

" Only run linting when saving the file
let g:ale_lint_on_text_changed = 'never'
let g:ale_lint_on_enter = 0
let g:ale_virtualtext_cursor = 'disabled'


"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => Git gutter (Git diff)
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" let g:gitgutter_enabled=0
" nnoremap <silent> <leader>d :GitGutterToggle<cr>


"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => EditorConfig (project-specific EditorConfig rule)
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" let g:EditorConfig_exclude_patterns = ['fugitive://.*']


"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => Fugitive
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Copy the link to the line of a Git repository to the clipboard
" nnoremap <leader>v :.GBrowse!<CR>
" xnoremap <leader>v :GBrowse!<CR>

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => coc 
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""

" May need for Vim (not Neovim) since coc.nvim calculates byte offset by count
" utf-8 byte sequence
set encoding=utf-8
" Some servers have issues with backup files, see #649
set nobackup
set nowritebackup

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

" Always show the signcolumn, otherwise it would shift the text each time
" diagnostics appear/become resolved
set signcolumn=yes

" Use tab for trigger completion with characters ahead and navigate
" NOTE: There's always complete item selected by default, you may want to enable
" no select by `"suggest.noselect": true` in your configuration file
" 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>
      \ coc#pum#visible() ? coc#pum#next(1) :
      \ CheckBackspace() ? "\<Tab>" :
      \ coc#refresh()
inoremap <expr><S-TAB> coc#pum#visible() ? coc#pum#prev(1) : "\<C-h>"

" Make <CR> to accept selected completion item or notify coc.nvim to format
" <C-g>u breaks current undo, please make your own choice
inoremap <silent><expr> <CR> coc#pum#visible() ? coc#pum#confirm()
                              \: "\<C-g>u\<CR>\<c-r>=coc#on_enter()\<CR>"

function! CheckBackspace() 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

" 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 ShowDocumentation()<CR>

function! ShowDocumentation()
  if CocAction('hasProvider', 'hover')
    call CocActionAsync('doHover')
  else
    call feedkeys('K', 'in')
  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 code actions to the selected code block
" Example: `<leader>aap` for current paragraph
xmap <leader>a  <Plug>(coc-codeaction-selected)
nmap <leader>a  <Plug>(coc-codeaction-selected)

" Remap keys for applying code actions at the cursor position
nmap <leader>ac  <Plug>(coc-codeaction-cursor)
" Remap keys for apply code actions affect whole buffer
nmap <leader>as  <Plug>(coc-codeaction-source)
" Apply the most preferred quickfix action to fix diagnostic on the current line
nmap <leader>qf  <Plug>(coc-fix-current)

" Remap keys for applying refactor code actions
nmap <silent> <leader>re <Plug>(coc-codeaction-refactor)
xmap <silent> <leader>r  <Plug>(coc-codeaction-refactor-selected)
nmap <silent> <leader>r  <Plug>(coc-codeaction-refactor-selected)

" 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> to 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','')}

" 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>