local util = {}

util.get_user_config = function(key, default)
	local status_ok, user = pcall(require, "user")
	if not status_ok then
		return default
	end

	local user_config = user[key]
	if user_config == nil then
		return default
	end
	return user_config
end

util.get_root_dir = function()
	local bufname = vim.fn.expand("%:p")
	if vim.fn.filereadable(bufname) == 0 then
		return
	end

	local parent = vim.fn.fnamemodify(bufname, ":h")
	local git_root = vim.fn.systemlist("git -C " .. parent .. " rev-parse --show-toplevel")
	if #git_root > 0 and git_root[1] ~= "" then
		return git_root[1]
	else
		return parent
	end
end

util.get_file_type_cmd = function(extension)
	local root = util.get_root_dir()

	if extension == "arb" and root then
		local gemfile_exists = vim.fn.filereadable(root .. "/Gemfile") == 1
		local pubspec_exists = vim.fn.filereadable(root .. "/pubspec.yaml") == 1
		if gemfile_exists then
			return "setfiletype ruby"
		end
		if pubspec_exists then
			return "setfiletype json"
		end
	end
	return ""
end

util.is_present = function(bin)
	return vim.fn.executable(bin) == 1
end

util.telescope_select = function(options, options_desc, select_prompt)
	require("telescope.pickers")
		.new({}, {
			prompt_title = select_prompt,
			results_title = options_desc,
			finder = require("telescope.finders").new_table({
				results = options,
				entry_maker = require("telescope.make_entry").gen_from_file(),
			}),
			sorter = require("telescope.sorters").get_fzy_sorter(),
			previewer = require("telescope.previewers").vim_buffer_cat.new({}),
		})
		:find()
end

return util