add lsp_organize_imports util function

thanks to this guy https://stackoverflow.com/a/67851340/13725946

neovim/.config/nvim/lua/user/cmds.lua

@@ -0,0 +1,3 @@
+vim.cmd([[
+command! OrganizeImports :lua require('user.utils').lsp_organize_imports()<CR>
+]])

neovim/.config/nvim/lua/user/remaps.lua

@@ -81,3 +81,6 @@ nmap("<leader>do", ":lopen<CR>")
 
 -- Git
 nmap("<leader>gg", ":G<CR>")
+
+-- Refactoring
+nmap("<leader>ri", ":lua require('user.utils').lsp_organize_imports()<CR>")

neovim/.config/nvim/lua/user/utils.lua

@@ -124,4 +124,18 @@ M.goto_global_definition = function()
   vim.api.nvim_win_set_cursor(0, { startLine, startCol })
 end
 
+M.lsp_organize_imports = function(bufnr, timeout)
+  if not bufnr then
+    bufnr = vim.api.nvim_get_current_buf()
+  end
+
+  local params = {
+    command = "_typescript.organizeImports",
+    arguments = { vim.api.nvim_buf_get_name(bufnr) },
+    title = "",
+  }
+
+  vim.lsp.buf_request_sync(bufnr, "workspace/executeCommand", params, timeout or 500)
+end
+
 return M