Add helper for generating ruby class <leader>irc

Insert ruby class

lua/config/keymaps.lua

@@ -18,12 +18,21 @@ local map = LazyVim.safe_keymap_set
 map("i", "jj", "<Esc>", { desc = "Go to normal mode" })
 map("n", "<leader>w", "<cmd>write<cr>", { desc = "Save file" })
 
-local alternative_file = require("mj.alternate_file")
-
-map("n", "<leader>ak", function()
+map("v", "<leader>", function()
   alternative_file.open("next", "--exists")
 end, { desc = "Open next alternative file" })
 
+local alternative_file = require("mj.alternate_file")
+
+map("n", "<leader>irc", function()
+  require("mj.ruby_utils").insert_ruby_class_based_on_file_name()
+end, { desc = "Insert ruby class" })
+
+-- this is not working correctly
+-- map("v", "<leader>irc", function()
+--   require("mj.ruby_utils").replace_selected_text_with_ruby_class()
+-- end, { desc = "Replace selected text ruby class" })
+
 map("n", "<leader>aj", function()
   alternative_file.open("prev", "--exists")
 end, { desc = "Open previous alternative file" })

lua/mj/ruby_utils.lua

@@ -0,0 +1,71 @@
+local M = {}
+
+M.snake_case_to_ruby_class = function(path)
+  -- Remove .rb suffix if present
+  path = path:gsub("%.rb$", "")
+
+  -- Split by slash and convert each part to CamelCase
+  local parts = vim.split(path, "/")
+  for i, part in ipairs(parts) do
+    parts[i] = part
+      :gsub("_(%a)", function(letter)
+        return letter:upper()
+      end)
+      :gsub("^%a", string.upper)
+  end
+
+  -- Join parts with "::" to form the Ruby class name
+  local ruby_class = table.concat(parts, "::")
+  return ruby_class
+end
+
+M.replace_selected_text_with_ruby_class = function()
+  -- Get the current visual selection
+  local start_pos = vim.fn.getpos("'<")
+  local end_pos = vim.fn.getpos("'>")
+
+  -- Get the lines in the selected region
+  local lines = vim.fn.getline(start_pos[2], end_pos[2])
+
+  -- If there's more than one line, we join them into one string
+  local selected_text = table.concat(lines, "\n")
+
+  -- Get the exact selection from the start column to the end column
+  selected_text = string.sub(selected_text, start_pos[3], end_pos[3])
+
+  -- Convert the selected text to Ruby class format
+  local ruby_class = M.snake_case_to_ruby_class(selected_text)
+
+  -- Replace the selected text with the converted Ruby class
+  vim.fn.setline(start_pos[2], ruby_class)
+end
+
+M.insert_ruby_class_based_on_file_name = function()
+  -- Get the current file name (without path)
+  local filename = vim.fn.expand("%:t")
+
+  -- Remove the .rb suffix if present
+  filename = filename:gsub("%.rb$", "")
+
+  -- Convert the file name to Ruby class format
+  local ruby_class = M.snake_case_to_ruby_class(filename)
+
+  -- Insert the class name at the current cursor position
+  vim.api.nvim_put({ ruby_class }, "c", true, true)
+end
+
+-- Keybindings (adjust as necessary)
+vim.api.nvim_set_keymap(
+  "v",
+  "<leader>r",
+  [[:lua require'module_name'.replace_selected_text_with_ruby_class()<CR>]],
+  { noremap = true, silent = true }
+)
+vim.api.nvim_set_keymap(
+  "n",
+  "<leader>i",
+  [[:lua require'module_name'.insert_ruby_class_based_on_file_name()<CR>]],
+  { noremap = true, silent = true }
+)
+
+return M