chore(refactor): Add get_node treesitter helper

Ensure we are always using correct language when getting the node

lua/orgmode/colors/highlighter/stars.lua

@@ -1,3 +1,4 @@
+local ts_utils = require('orgmode.utils.treesitter')
 local config = require('orgmode.config')
 
 ---@class OrgStarsHighlighter
@@ -19,10 +20,9 @@ function OrgStars:on_line(bufnr, line)
     return
   end
 
-  local node = vim.treesitter.get_node({
+  local node = ts_utils.get_node({
     bufnr = bufnr,
     pos = { line, 0 },
-    lang = 'org',
   })
 
   if not node or node:type() ~= 'stars' then

lua/orgmode/ui/virtual_indent.lua

@@ -95,7 +95,7 @@ function VirtualIndent:set_indent(start_line, end_line, ignore_ts)
     start_line = start_line - 1
   end
 
-  local node_at_cursor = vim.treesitter.get_node({ lang = 'org' })
+  local node_at_cursor = tree_utils.get_node()
   local tree_has_errors = false
   if node_at_cursor then
     tree_has_errors = node_at_cursor:tree():root():has_error()

lua/orgmode/utils/treesitter/init.lua

@@ -13,18 +13,24 @@ function M.parse_current_file()
   return vim.treesitter.get_parser(0, 'org', {}):parse()
 end
 
+---@param opts? vim.treesitter.get_node.Opts
+function M.get_node(opts)
+  opts = opts or {}
+  opts.lang = opts.lang or 'org'
+  return vim.treesitter.get_node(opts)
+end
+
 ---@param cursor? table
 ---@return TSNode | nil
 function M.get_node_at_cursor(cursor)
   M.parse_current_file()
   if not cursor then
-    return vim.treesitter.get_node({ lang = 'org' })
+    return M.get_node()
   end
 
-  return vim.treesitter.get_node({
+  return M.get_node({
     bufnr = 0,
     pos = { cursor[1] - 1, cursor[2] },
-    lang = 'org',
   })
 end