#!/usr/bin/env lua

local select_bin = function()
	local bins = { "docker", "podman" }
	for _, bin in ipairs(bins) do
		if os.execute("which " .. bin) ~= nil then
			return bin
		end
	end

	print("No container engine found, bins are: " .. table.concat(bins, ", "))
	os.exit(1)
end

local exec_and_exit = function(cmd)
	print("Command: " .. cmd)

	local bin = select_bin()
	print("Binary: " .. bin)

	local container = "nixery.dev/shell/curl/findutils/fzf/gcc/git/gnutar/gzip/neovim/tree-sitter"
	local pwd = io.popen("pwd"):read("*l")

	local args = {
		bin,
		"run",
		"--rm",
		"-v",
		pwd .. ":/yaml.nvim",
		"--workdir",
		"/yaml.nvim",
		"-it",
		container,
		cmd,
	}
	local arg = table.concat(args, " ")
	print("$ " .. arg)

	local status, _ = os.execute(arg)
	os.exit(status)
end

local main = function()
	local opts = {}
	local cmds = {
		nvim = function()
			return "nvim -u tests/init.lua tests/sample.yaml"
		end,
		test = function()
			for line in io.lines(".tangled/workflows/tests.yaml") do
				if string.find(line, "PlenaryBustedDirectory") then
					return string.gsub(line, "^%s*(.-)%s*$", "%1")
				end
			end
		end,
	}
	for name, cmd in pairs(cmds) do
		table.insert(opts, name)
		if name == arg[1] then
			local arg = cmd()
			exec_and_exit(arg)
		end
	end

	print("No command found, options are: " .. table.concat(opts, ", "))
end

main()