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neovim/.config/nvim/lua/utils/functions.lua

local vim = vim

local X = {}

---@param on_attach fun(client, buffer)
function X.on_attach(on_attach)
	vim.api.nvim_create_autocmd("LspAttach", {
		callback = function(args)
			local buffer = args.buf
			local client = vim.lsp.get_client_by_id(args.data.client_id)
			on_attach(client, buffer)
		end,
	})
end

function X.starts_with(str, start)
	return str:sub(1, #start) == start
end

function X.is_table(to_check)
	return type(to_check) == "table"
end

function X.has_key(t, key)
	for t_key, _ in pairs(t) do
		if t_key == key then
			return true
		end
	end

	return false
end

function X.has_value(t, val)
	for _, value in ipairs(t) do
		if value == val then
			return true
		end
	end

	return false
end

function X.tprint(table)
	print(vim.inspect(table))
end

function X.tprint_keys(table)
	for k in pairs(table) do
		print(k)
	end
end

X.reload = function()
	local presentReload, reload = pcall(require, "plenary.reload")
	if presentReload then
		local counter = 0

		for moduleName in pairs(package.loaded) do
			if X.starts_with(moduleName, "lt.") then
				reload.reload_module(moduleName)

				counter = counter + 1
			end
		end

		-- clear nvim-mapper keys
		vim.g.mapper_records = nil

		vim.notify("Reloaded " .. counter .. " modules!")
	end
end

function X.is_macunix()
	return vim.fn.has("macunix")
end

function X.link_highlight(from, to, override)
	local hl_exists, _ = pcall(vim.api.nvim_get_hl_by_name, from, false)
	if override or not hl_exists then
		-- vim.cmd(("highlight link %s %s"):format(from, to))
		vim.api.nvim_set_hl(0, from, { link = to })
	end
end

X.highlight = function(group, opts)
	vim.api.nvim_set_hl(0, group, opts)
end

X.highlight_bg = function(group, col)
	vim.api.nvim_set_hl(0, group, { bg = col })
end

-- Define fg color
-- @param group Group
-- @param color Color
X.highlight_fg = function(group, col)
	vim.api.nvim_set_hl(0, group, { fg = col })
end

-- Define bg and fg color
-- @param group Group
-- @param fgcol Fg Color
-- @param bgcol Bg Color
X.highlight_fg_bg = function(group, fgcol, bgcol)
	vim.api.nvim_set_hl(0, group, { bg = bgcol, fg = fgcol })
end

X.from_highlight = function(hl)
	local result = {}
	local list = vim.api.nvim_get_hl_by_name(hl, true)
	for k, v in pairs(list) do
		local name = k == "background" and "bg" or "fg"
		result[name] = string.format("#%06x", v)
	end
	return result
end

X.get_color_from_terminal = function(num, default)
	local key = "terminal_color_" .. num
	return vim.g[key] and vim.g[key] or default
end

X.cmd = function(name, command, desc)
	vim.api.nvim_create_user_command(name, command, desc)
end

return X