local M = {}

function M.should_use_provider(_)
	local coc_installed = vim.fn.exists("*CocActionAsync")

	if coc_installed == 0 then
		return
	end

	local coc_attached = vim.fn.call("CocAction", { "ensureDocument" })
	local has_symbols = vim.fn.call("CocHasProvider", { "documentSymbol" })

	return coc_attached and has_symbols
end

function M.hover_info(_, _, on_info)
	on_info(nil, { contents = { kind = "markdown", contents = { "No extra information availaible!" } } })
end

---@param on_symbols function
function M.request_symbols(on_symbols)
	vim.fn.call("CocActionAsync", {
		"documentSymbols",
		function(_, symbols)
			on_symbols({ [1000000] = { result = symbols } })
		end,
	})
end

return M