function! s:enable_coc_for_type() 
	let l:filesuffix_whitelist = ['php', 'ts', 'vim', 'sh', 'py', 'shd', 'json', 'changelog', 'md', 'copilot-chat', 'sql', 'txt']
	if index(l:filesuffix_whitelist, expand('%:e')) == -1
		let b:coc_enabled = 0
	endif

	let l:filename_blacklist = ['tenTask.txt']
	if index(l:filename_blacklist,fnamemodify(expand('%:p'), ':t')) == 0
		let b:coc_enabled = 0
	endif

	let l:fileprefix_blacklist = ['dev-query-', 'ddc-ff']
	for l:prefix in l:fileprefix_blacklist
		if match(expand('%:t:r'), '^' . l:prefix) != -1
			let b:coc_enabled = 1
			break
		endif
	endfor
endfunction
autocmd BufRead,BufNewFile * call s:enable_coc_for_type()

" .vimrc や任意のVim設定ファイルに追加

" filetypeに基づいてキーバインドを設定する関数
function! SetFileTypeBindings()
  " filetypeを取得
  let l:filetype = &filetype

  " filetypeがmarkdownの場合
  if l:filetype   == 'changelog'
    " for nvim-cmp
lua << EOF

      local cmp = require'cmp'
      cmp.setup({
      snippet = {
        -- REQUIRED - you must specify a snippet engine
        expand = function(args)
        end,
      },
      mapping = cmp.mapping.preset.insert({
      ['<C-u>']     = cmp.mapping.scroll_docs(-4),
      ['<C-d>']     = cmp.mapping.scroll_docs(4),
      ["<C-p>"] = cmp.mapping.select_prev_item(),
      ["<C-n>"] = cmp.mapping.select_next_item(),
      ['<C-e>'] = cmp.mapping.abort(),
      ["<CR>"] = cmp.mapping.confirm { select = true },
      }),
      window = {
        completion = cmp.config.window.bordered(),
        documentation = cmp.config.window.bordered(),
      },
      sources = {
        { name = 'buffer' },
        { name = 'path' },
      },
      method = "getCompletionsCycling",
      })
EOF
  else
    " for coc.nvim
    inoremap <silent><expr> <CR> coc#pum#visible() ? coc#_select_confirm()
          \: "\<C-g>u" . lexima#expand('<LT>CR>', 'i')

    inoremap <silent><expr> <C-n> coc#pum#visible() ? coc#pum#next(1) : "\<C-n>"
    inoremap <silent><expr> <C-p> coc#pum#visible() ? coc#pum#prev(1) : "\<C-p>"
    inoremap <silent><expr> <down> coc#pum#visible() ? coc#pum#next(0) : "\<down>"
    inoremap <silent><expr> <up> coc#pum#visible() ? coc#pum#prev(0) : "\<up>"

    function! s:check_back_space() abort
      let col = col('.') - 1
      return !col || getline('.')[col - 1]  =~ '\s'
    endfunction

    " imap <silent><expr> <TAB>
    "       \ coc#pum#visible() ? coc#pum#next(1):
    "       \ <SID>check_back_space() ? "\<Tab>" :
    "       \ coc#refresh()
    " imap <expr><S-TAB> coc#pum#visible() ? coc#pum#prev(1) : "\<C-h>"

    let g:coc_snippet_next = '<tab>'

    nmap <silent> <Leader>cd <Plug>(coc-definition)
    nmap <silent> <Leader>cy <Plug>(coc-type-definition)
    nmap <silent> <Leader>ci <Plug>(coc-implementation)
    nmap <silent> <Leader>cr <Plug>(coc-references)
    nmap <silent> <Leader>cn <Plug>(coc-rename)
    nmap <silent> <Leader>cf <Plug>(coc-format)
    vmap <silent> <Leader>cf <Plug>(coc-format)
    nmap <silent> <Leader>cR  <Plug>(coc-refactor)

    nnoremap <silent> <space>cla  :<C-u>CocFzfList diagnostics<CR>
    nnoremap <silent> <space>clb  :<C-u>CocFzfList diagnostics --current-buf<CR>
    nnoremap <silent> <space>clc  :<C-u>CocFzfList commands<CR>
    nnoremap <silent> <space>cle  :<C-u>CocFzfList extensions<CR>
    nnoremap <silent> <space>cls  :<C-u>CocFzfList symbols<CR>
    nnoremap <silent> <space>clS  :<C-u>CocFzfList services<CR>
    nnoremap <silent> <space>clp  :<C-u>CocFzfListResume<CR>
    nmap <silent> <Leader>caA <Plug>(coc-codeaction)
    nmap <silent> <Leader>cal <Plug>(coc-codeaction-line)
    xmap <silent> <Leader>cas <Plug>(coc-codeaction-selected)
    nmap <silent> <leader>caa <Plug>(coc-codeaction-cursor)

    autocmd FileType php,typescript,python,markdown,javascript,vim nnoremap <silent> <space>co  :<C-u>CocFzfList outline<CR>
  endif
endfunction

" BufEnterイベントが発生したときにSetFileTypeBindings関数を呼び出す
augroup FileTypeBindings
  autocmd!
  autocmd BufEnter * call SetFileTypeBindings()
augroup END