// This creates a simple hello world window
package main

import 	(
	"os"
	"os/user"
	"net"
	"git.wit.org/wit/gui"
	"git.wit.org/wit/shell"
	"github.com/davecgh/go-spew/spew"
)

// This initializes the first window
func initGUI() {
	gui.Config.Title = "DNS and IPv6 Control Panel"
	gui.Config.Width = 640
	gui.Config.Height = 480
	gui.Config.Exit = myDefaultExit

	me.window = gui.NewWindow()
	me.window.Dump()
	addDNSTab("DNS")

	if (args.GuiDebug) {
		gui.DebugWindow()
	}
}

func addDNSTab(title string) {
	var g2 *gui.Node

	me.tab = me.window.NewTab(title)
        // log("addDemoTab() newNode.Dump")
	// newNode.Dump()

	me.notes = me.tab.NewGroup("junk")
	dd := me.notes.NewDropdown("demoCombo2")
	dd.AddDropdownName("more 1")
	dd.AddDropdownName("more 2")
	dd.AddDropdownName("more 3")
	dd.Custom = func() {
		s := dd.GetText()
		output("dd.Custom( dd.GetText() ) =" + s + "\n", true)
	}
	me.notes.NewButton("hello", func () {
		log("world")
	})

	g2 = me.tab.NewGroup("Real Stuff")

	g2.NewButton("Network Interfaces", func () {
		for i, t := range me.ifmap {
			log("name =", t.iface.Name)
			log("int =", i, "name =", t.name, t.iface)
			output("iface = " + t.iface.Name + "\n", true)
		}
	})
	g2.NewButton("Hostname", func () {
		getHostname()
		output("FQDN = " + me.fqdn + "\n", true)
	})
	g2.NewButton("Actual AAAA", func () {
		var aaaa []string
		aaaa = realAAAA()
		for _, s := range aaaa {
			output("my actual AAAA = " + s + "\n", true)
		}
	})

	g2.NewButton("checkDNS()", func () {
		checkDNS()
	})
	g2.NewButton("os.User()", func () {
		user, _ := user.Current()
		spew.Dump(user)
		log("os.Getuid =", os.Getuid())
	})
	g2.NewButton("Example_listLink()", func () {
		Example_listLink()
	})
	g2.NewButton("Escalate()", func () {
		Escalate()
	})
	g2.NewButton("pprof(goroutine)", func () {
		loggo()
		// panic("correctly inside of gui goroutine (goroutine 1?)")
	})
	g2.NewButton("gui.DebugWindow()", func () {
		gui.DebugWindow()
	})
	g2.NewButton("NewCheckbox(test)", func () {
		me.notes.NewCheckbox("test")
	})
	g2.NewButton("LookupAddr(<raw ipv6>) == fire from /etc/hosts", func () {
		host, err := net.LookupAddr("2600:1700:afd5:6000:b26e:bfff:fe80:3c52")
		if err != nil {
			return
		}
		log("host =", host)
	})
	g2.NewButton("DumpPublicDNSZone(apple.com)", func () {
		DumpPublicDNSZone("apple.com")
		dumpIPs("www.apple.com")
	})

	nsupdateGroup(me.tab)

	tmp := me.tab.NewGroup("output")
	me.output = tmp.NewTextbox("some output")
	me.output.Custom = func() {
		s := me.output.GetText()
		log("output text =", s)
	}
}

func myDefaultExit(n *gui.Node) {
        log("You can Do exit() things here")
	os.Exit(0)
}

func nsupdateGroup(w *gui.Node) {
	g := w.NewGroup("dns update")
	g.NewLabel("UID = " + me.user)
	g.NewButton("DNS AAAA", func () {
		var aaaa []string
		var out string
		h := me.fqdn
		// h := "fire.lab.wit.org"
		aaaa = dnsAAAA(h)
		log(SPEW, me)
		if (aaaa == nil) {
			out += "There are no DNS AAAA records for hostname: " + h + "\n"
		}
		for _, s := range aaaa {
			out += "host " + h + " DNS AAAA = " + s + "\n"
		}
	})
	g.NewButton("dig +trace", func () {
		o := shell.Run("dig +trace +noadditional DS " + me.fqdn + " @8.8.8.8")
		output(o, false)
		// log(o)
	})
}

var outJunk string
func output(s string, a bool) {
	if (a) {
		outJunk += s
	} else {
		outJunk = s
	}
	me.output.SetText(outJunk)
	//log(outJunk)
}