fix https://github.com/NvChad/NvChad/issues/1027 | add theme toggle function

lua/base46.lua

@@ -0,0 +1,87 @@
+local M = {}
+
+M.get_colors = function(type)
+   local name
+
+   if vim.g.nvchad_theme then
+      name = vim.g.nvchad_theme
+   else
+      name = require("core.utils").load_config().ui.theme
+      vim.g.nvchad_theme = name
+   end
+
+   -- theme paths
+   local default_path = "hl_themes." .. name
+   local user_path = "custom.themes." .. name
+
+   local present1, default_theme = pcall(require, default_path)
+   local present2, user_theme = pcall(require, user_path)
+
+   if present1 then
+      return default_theme[type]
+   elseif present2 then
+      return user_theme[type]
+   else
+      error "No such theme bruh >_< "
+   end
+end
+
+M.merge_tb = function(table1, table2)
+   return vim.tbl_deep_extend("force", table1, table2)
+end
+
+M.load_theme = function()
+   -- clear highlights of bufferline (cuz of dynamic devicons hl group on the buffer)
+   local highlights_raw = vim.split(vim.api.nvim_exec("filter BufferLine hi", true), "\n")
+   local highlight_groups = {}
+
+   for _, raw_hi in ipairs(highlights_raw) do
+      table.insert(highlight_groups, string.match(raw_hi, "BufferLine%a+"))
+   end
+
+   for _, highlight in ipairs(highlight_groups) do
+      vim.cmd([[hi clear ]] .. highlight)
+   end
+   -- above highlights clear code by https://github.com/max397574
+
+   -- reload highlights for theme switcher
+   require("plenary.reload").reload_module "integrations"
+   require("plenary.reload").reload_module "chadlights"
+
+   require "chadlights"
+end
+
+M.override_theme = function(default_theme, theme_name)
+   local changed_themes = require("core.utils").load_config().ui.changed_themes
+
+   if changed_themes[theme_name] then
+      return M.merge_tb(default_theme, changed_themes[theme_name])
+   else
+      return default_theme
+   end
+end
+
+M.toggle_theme = function()
+   local themes = require("core.utils").load_config().ui.theme_toggle
+
+   local theme1 = themes[1]
+   local theme2 = themes[2]
+
+   if vim.g.nvchad_theme == theme1 then
+      vim.g.toggle_theme_icon = "   "
+      vim.g.nvchad_theme = theme2
+
+      require("nvchad").reload_theme()
+      require("nvchad").change_theme(theme1, theme2)
+   elseif vim.g.nvchad_theme == theme2 then
+      vim.g.toggle_theme_icon = "   "
+      vim.g.nvchad_theme = theme1
+
+      require("nvchad").reload_theme()
+      require("nvchad").change_theme(theme2, theme1)
+   else
+      vim.notify "Set your current theme to one of those mentioned in the theme_toggle table (chadrc)"
+   end
+end
+
+return M