feat: cli completion

lua/catppuccino/core/list_cs.lua

@@ -0,0 +1,4 @@
+return {
+	["catppuccino"] = "catppuccino",
+	["neon_latte"] = "neon_latte"
+}

lua/catppuccino/utils/cli_completion.lua

@@ -0,0 +1,7 @@
+local M = {}
+
+function M.available_commands()
+    return vim.tbl_keys(require("catppuccino.core.list_cs"))
+end
+
+return M

plugin/cpcmds.vim

@@ -6,8 +6,27 @@ if exists('g:loaded_catppuccino') | finish | endif
 let s:save_cpo = &cpo " save user coptions
 set cpo&vim " reset them to defaults
 
+" Utils {{{
+function! cpcmds#get_first_arg(...)
+	return "".get(a:, 1, 1).""
+endfunction
+" }}}
+
+" Test Availability {{{
+" aa = available arguments
+function! cpcmds#available_args_flavors() abort
+	return luaeval('require("catppuccino.utils.cli_completion").available_commands()')
+endfunction
+" }}}
+
+" Tab Completion {{{
+function! s:complete_args_flavors(arg, line, pos) abort
+	return join(cpcmds#available_args_flavors(), "\n")
+endfunction
+" }}}
+
 " Interface {{{
-command! CPLoad lua require'catppuccino.main'.main('load')
+command! -nargs=+ -complete=custom,s:complete_args_flavors CPLoad call v:lua.require'catppuccino.main'.main('load',cpcmds#get_first_arg(<f-args>))
 " }}}
 
 let &cpo = s:save_cpo " restore after