local keymap = vim.keymap
local check_duplicates = require("utils.duplicates").check_duplicates

local X = {}

local which_key_lazy_registers = nil
local function lazy_register_which_key(input, description)
	if which_key_lazy_registers == nil then
		which_key_lazy_registers = {}
	end

	which_key_lazy_registers[input] = description
end

local function try_add_to_which_key_by_input(input, description)
	local present_which_key, which_key = pcall(require, "which-key")

	local has_leader = string.find(input, "<leader>")
	if has_leader then
		if present_which_key then
			if which_key_lazy_registers ~= nil then
				which_key.register(which_key_lazy_registers)

				which_key_lazy_registers = nil
			end

			which_key.register({
				[input] = description,
			})
		else
			lazy_register_which_key(input, description)
		end
	end
end

function X.map(type, input, output, description, additional_options)
	local options = { remap = true, desc = description }
	if additional_options then
		options = vim.tbl_deep_extend("force", options, additional_options)
	end

	keymap.set(type, input, output, options)

	check_duplicates(type, input, description)
end

function X.noremap(type, input, output, description, additional_options)
	local options = { remap = false }
	if additional_options then
		options = vim.tbl_deep_extend("force", options, additional_options)
	end

	X.map(type, input, output, description, options)
end

function X.map_virtual(input, description)
	check_duplicates(type, input, description)
	try_add_to_which_key_by_input(input, description)
end

function X.which_key(input, description)
	try_add_to_which_key_by_input(input, description)
end

return X