package gui

import "log"
import "time"
import "fmt"
import "regexp"
// import "os"

import "github.com/andlabs/ui"
import _ "github.com/andlabs/ui/winmanifest"

import pb "git.wit.com/wit/witProtobuf"

import "github.com/davecgh/go-spew/spew"

func makeCloudInfoBox() *ui.Box {
	hbox := ui.NewHorizontalBox()
	hbox.SetPadded(true)

	if (Data.Debug) {
		vbox := ui.NewVerticalBox()
		vbox.SetPadded(true)
		hbox.Append(vbox, false)

		addDebuggingButtons(vbox)

		hbox.Append(ui.NewVerticalSeparator(), false)
	}

	vbox := ui.NewVerticalBox()
	vbox.SetPadded(true)
	hbox.Append(vbox, true)

	hostnamebox := ui.NewHorizontalBox()
	hostnamebox.SetPadded(true)
	vbox.Append(hostnamebox, false)

	entryForm := ui.NewForm()
	entryForm.SetPadded(true)
	hostnamebox.Append(entryForm, true)

	hostnameEntry :=  ui.NewEntry()
	entryForm.Append("hostname:", hostnameEntry, false)
	tmp := Data.Hostname + " (" + Data.IPv6 + ")"
	hostnameEntry.SetText(tmp)
	hostnameEntry.SetReadOnly(true)

	hostnamebox.Append(CreateButton(nil, nil, "Edit", "EDIT", nil), false)

	vbox.Append(ui.NewHorizontalSeparator(), false)

	agrid := ui.NewGrid()
	agrid.SetPadded(true)

	agrid.Append(ui.NewLabel("Accounts:"),   0, 0, 1, 1, true, ui.AlignFill, false, ui.AlignFill)
	agrid.Append(ui.NewLabel("Nickname"),    1, 0, 1, 1, true, ui.AlignFill, false, ui.AlignFill)
	agrid.Append(ui.NewLabel("Username"),    2, 0, 1, 1, true, ui.AlignFill, false, ui.AlignFill)
	agrid.Append(ui.NewLabel("Domain Name"), 3, 0, 1, 1, true, ui.AlignFill, false, ui.AlignFill)

	row := 1

	for key, a := range Data.Config.Accounts {
		log.Println("account =          ", key, a)
		log.Println("Accounts[key] =    ", Data.Config.Accounts[key])
		log.Println("account.Nick =     ", Data.Config.Accounts[key].Nick)
		log.Println("account.Username = ", Data.Config.Accounts[key].Username)
		log.Println("account.Token =    ", Data.Config.Accounts[key].Token)

		agrid.Append(ui.NewLabel(Data.Config.Accounts[key].Nick),	1, row, 1, 1, true, ui.AlignFill, false, ui.AlignFill)
		agrid.Append(ui.NewLabel(Data.Config.Accounts[key].Username),	2, row, 1, 1, true, ui.AlignFill, false, ui.AlignFill)
		agrid.Append(ui.NewLabel(Data.Config.Accounts[key].Domain),	3, row, 1, 1, true, ui.AlignFill, false, ui.AlignFill)

		name := "Login " + Data.Config.Accounts[key].Nick
		l := CreateButton(Data.Config.Accounts[key], nil, name, "LOGIN", nil)
		agrid.Append(l, 4, row, 1, 1, true, ui.AlignFill, false, ui.AlignFill)

		name  = "Show " + Data.Config.Accounts[key].Nick
		b := CreateButton(Data.Config.Accounts[key], nil, name, "SHOW", nil)
		agrid.Append(b, 5, row, 1, 1, true, ui.AlignFill, false, ui.AlignFill)

		row += 1
	}

	row += 1
	agrid.Append(ui.NewLabel(""),    1, row, 1, 1, true, ui.AlignFill, false, ui.AlignFill)
	row += 1
	a := CreateButton(nil, nil, "Add Account", "ADD TAB", nil)
	agrid.Append(a, 4, row, 1, 1, true, ui.AlignFill, false, ui.AlignFill)
	q := CreateButton(nil, nil, "Quit", "QUIT", nil)
	agrid.Append(q, 5, row, 1, 1, true, ui.AlignFill, false, ui.AlignFill)

	vbox.Append(agrid, false)
	return hbox
}

//
// THIS IS THE STANDARD VM DISPLAY TABLE
// This maps the 'human' indexed cells in the table
// to the machine's andlabs/libui values. That way
// if you want to work against column 4, then you
// can just reference 4 instead of the internal number
// which could be anything since TEXTCOLOR, TEXT, BG, etc
// fields use between 1 and 3 values internally
//
func AddVmsTab(name string, count int, a *pb.Account) *TableData {
	var parts []TableColumnData

	human := 0

	tmp := TableColumnData{}
	tmp.CellType = "BG"
	tmp.Heading  = "background"
	tmp.Index    = human
	parts = append(parts, tmp)
	human += 1

	tmp = TableColumnData{}
	tmp.CellType = "TEXTCOLOR"
	tmp.Heading  = "name"
	tmp.Index    = human
	parts = append(parts, tmp)
	human += 1

	tmp = TableColumnData{}
	tmp.CellType = "TEXTCOLOR"
	tmp.Heading  = "hostname"
	tmp.Index    = human
	parts = append(parts, tmp)
	human += 1

	tmp = TableColumnData{}
	tmp.CellType = "TEXTCOLOR"
	tmp.Heading  = "IPv6"
	tmp.Index    = human
	parts = append(parts, tmp)
	human += 1

	tmp = TableColumnData{}
	tmp.CellType = "TEXTCOLOR"
	tmp.Heading  = "cpus"
	tmp.Index    = human
	parts = append(parts, tmp)
	human += 1

	tmp = TableColumnData{}
	tmp.CellType = "TEXTCOLOR"
	tmp.Heading  = "memory"
	tmp.Index    = human
	parts = append(parts, tmp)
	human += 1

	tmp = TableColumnData{}
	tmp.CellType = "BUTTON"
	tmp.Heading  = "Details"
	tmp.Index    = human
	parts = append(parts, tmp)
	human += 1

	mh := AddTableTab(Data.cloudTab, 1, name, count, parts, a)
	return mh
}

func ShowAccountQuestionTab() {
	Data.cloudTab.Delete(0)

	log.Println("Sleep(200)")
	time.Sleep(200 * time.Millisecond)

	Data.smallBox = AddAccountQuestionBox()
	Data.cloudTab.InsertAt("New Account?", 0, Data.smallBox)
	Data.cloudTab.SetMargined(0, true)
}

func ShowAccountTab(i int) {
	log.Println("ShowAccountTab() START")

	log.Println("Sleep(200)")
	time.Sleep(200 * time.Millisecond)

	// Create the things for the Account Tab
	abox := AddAccountBox()

	// Set the parents and data structure links
	// aTab.me = Data.cloudTab
	// aTab.parentWindow = Data.cloudWindow
	// aTab.tabOffset = 0

	if (i >= 0) {
		log.Println("ShowAccountTab() InsertAt i=", i)
		Data.cloudTab.Delete(0)
		Data.cloudTab.InsertAt("Add Account", i, abox)
		Data.cloudTab.SetMargined(0, true)
	} else {
		// TODO: After append try to discover the tab index #
		log.Println("ShowAccountTab() Append")
		AddBoxToTab("Create New Account", Data.cloudTab, abox)
	}
}

func ShowMainTab() {
	Data.cloudTab.Delete(0)

	log.Println("Sleep(200)")
	time.Sleep(200 * time.Millisecond)

	Data.smallBox = makeCloudInfoBox()
	Data.cloudTab.InsertAt("Main", 0, Data.smallBox)
	Data.cloudTab.SetMargined(0, true)
}

func GoMainWindow() {
	ui.Main(makeCloudWindow)
}

func makeCloudWindow() {
	Data.cloudWindow = ui.NewWindow("", Data.Width, Data.Height, true)
	// cloudWindow.SetBorderless(true)

        // create a 'fake' button entry for the mouse clicks
	var newButtonMap ButtonMap
	newButtonMap.Action   = "QUIT"
	Data.AllButtons = append(Data.AllButtons, newButtonMap)

	Data.cloudWindow.OnClosing(func(*ui.Window) bool {
		mouseClick(&newButtonMap)
		return true
	})
	ui.OnShouldQuit(func() bool {
		mouseClick(&newButtonMap)
		return true
	})

	Data.cloudTab = ui.NewTab()
	Data.cloudWindow.SetChild(Data.cloudTab)
	Data.cloudWindow.SetMargined(true)

	Data.cloudBox = ShowSplashBox()

	Data.cloudTab.Append("WIT Splash", Data.cloudBox)
	Data.cloudTab.SetMargined(0, true)

	Data.cloudWindow.Show()
	Data.State = "splash"
}

func GoShowVM() {
	ui.Main(ShowVM)
}

func ShowVM() {
	name := Data.CurrentVM.Name
	log.Println("ShowVM() START Data.CurrentVM=", Data.CurrentVM)
	VMwin := ui.NewWindow("VM " + name, 500, 300, false)

        // create a 'fake' button entry for the mouse clicks
	var newButtonMap ButtonMap
	newButtonMap.Action   = "WINDOW CLOSE"
	newButtonMap.W        = VMwin
	Data.AllButtons = append(Data.AllButtons, newButtonMap)

	VMwin.OnClosing(func(*ui.Window) bool {
		mouseClick(&newButtonMap)
		return true
	})
	ui.OnShouldQuit(func() bool {
		mouseClick(&newButtonMap)
		return true
	})

	VMtab := ui.NewTab()
	VMwin.SetChild(VMtab)
	VMwin.SetMargined(true)

	CreateVmBox(VMtab, Data.CurrentVM)
	VMwin.Show()
}

func AddVmConfigureTab(name string, pbVM *pb.Event_VM) {
	CreateVmBox(Data.cloudTab, Data.CurrentVM)
}

// makeEntryBox(box, "hostname:", "blah.foo.org") {
func makeEntryVbox(hbox *ui.Box, a string, startValue string, edit bool, action string) *EntryMap {
	// Start 'Nickname' vertical box
	vboxN := ui.NewVerticalBox()
	vboxN.SetPadded(true)
	vboxN.Append(ui.NewLabel(a), false)

	e := defaultMakeEntry(startValue, edit, action)

	vboxN.Append(e.E, false)
	hbox.Append(vboxN, false)
	// End 'Nickname' vertical box

	return e
}

/*
// string handling examples that might be helpful for normalizeInt()
isAlpha := regexp.MustCompile(`^[A-Za-z]+$`).MatchString

for _, username := range []string{"userone", "user2", "user-three"} {
    if !isAlpha(username) {
        fmt.Printf("%q is not valid\n", username)
    }
}

const alpha = "abcdefghijklmnopqrstuvwxyz"

func alphaOnly(s string) bool {
   for _, char := range s {
      if !strings.Contains(alpha, strings.ToLower(string(char))) {
         return false
      }
   }
   return true
}
*/

func normalizeInt(s string) string {
	// reg, err := regexp.Compile("[^a-zA-Z0-9]+")
	reg, err := regexp.Compile("[^0-9]+")
	if err != nil {
		log.Println("normalizeInt() regexp.Compile() ERROR =", err)
		return s
	}
	clean := reg.ReplaceAllString(s, "")
	log.Println("normalizeInt() s =", clean)
	return clean
}

func defaultEntryChange(e *ui.Entry) {
	for key, em := range Data.AllEntries {
		if (Data.Debug) {
			log.Println("\tdefaultEntryChange() Data.AllEntries =", key, em)
		}
		if Data.AllEntries[key].E == e {
			log.Println("defaultEntryChange() FOUND", 
				"action =", Data.AllEntries[key].Action,
				"Last =", Data.AllEntries[key].Last,
				"e.Text() =", e.Text())
			Data.AllEntries[key].Last = e.Text()
			if Data.AllEntries[key].Normalize != nil {
				fixed := Data.AllEntries[key].Normalize(e.Text())
				e.SetText(fixed)
			}
			return
		}
	}
	log.Println("defaultEntryChange() ERROR. MISSING ENTRY MAP. e.Text() =", e.Text())
}

func defaultMakeEntry(startValue string, edit bool, action string) *EntryMap {
	e := ui.NewEntry()
	e.SetText(startValue)
	if (edit == false) {
		e.SetReadOnly(true)
	}
	e.OnChanged(defaultEntryChange)

	// add the entry field to the global map
	var newEntryMap EntryMap
	newEntryMap.E      = e
	newEntryMap.Edit   = edit
	newEntryMap.Action = action
	if (action == "Memory") {
		newEntryMap.Normalize = normalizeInt
	}
	Data.AllEntries = append(Data.AllEntries, newEntryMap)

	return &newEntryMap
}

func makeEntryHbox(hbox *ui.Box, a string, startValue string, edit bool, action string) *EntryMap {
	// Start 'Nickname' vertical box
	hboxN := ui.NewHorizontalBox()
	hboxN.SetPadded(true)
	hboxN.Append(ui.NewLabel(a), false)

	e := defaultMakeEntry(startValue, edit, action)
	hboxN.Append(e.E, false)

	hbox.Append(hboxN, false)
	// End 'Nickname' vertical box

	return e
}

func AddBoxToTab(name string, tab *ui.Tab, box *ui.Box) {
	tab.Append(name, box)
	tab.SetMargined(0, true)
}

func CreateVmBox(tab *ui.Tab, vm *pb.Event_VM) {
	log.Println("CreateVmBox() START")
	log.Println("CreateVmBox() vm.Name", vm.Name)
	spew.Dump(vm)
	if (Data.Debug) {
		spew.Dump(vm)
	}
	vbox := ui.NewVerticalBox()
	vbox.SetPadded(true)

	hboxAccount := ui.NewHorizontalBox()
	hboxAccount.SetPadded(true)
	vbox.Append(hboxAccount, false)

	// Add hostname entry box
	makeEntryVbox(hboxAccount, "hostname:",	vm.Hostname,			true, "Hostname")
	makeEntryVbox(hboxAccount, "IPv6:",	vm.IPv6,			true, "IPv6")
	makeEntryVbox(hboxAccount, "RAM:",	fmt.Sprintf("%d",vm.Memory),	true, "Memory")
	makeEntryVbox(hboxAccount, "CPU:",	fmt.Sprintf("%d",vm.Cpus),	true, "Cpus")
	makeEntryVbox(hboxAccount, "Disk (GB):",fmt.Sprintf("%d",vm.Disk),	true, "Disk")
	makeEntryVbox(hboxAccount, "OS Image:",	vm.BaseImage,			true, "BaseImage")

	vbox.Append(ui.NewHorizontalSeparator(), false)

	hboxButtons := ui.NewHorizontalBox()
	hboxButtons.SetPadded(true)
	vbox.Append(hboxButtons, false)

	hboxButtons.Append(CreateButton(nil, vm, "Power On",  "POWERON",  nil), false)
	hboxButtons.Append(CreateButton(nil, vm, "Power Off", "POWEROFF", nil), false)
	hboxButtons.Append(CreateButton(nil, vm, "Destroy",   "DESTROY",  nil), false)
	hboxButtons.Append(CreateButton(nil, vm, "ping",      "PING",     runPingClick), false)
	hboxButtons.Append(CreateButton(nil, vm, "Console",   "XTERM",    runTestExecClick), false)
	hboxButtons.Append(CreateButton(nil, vm, "Save",      "SAVE",     nil), false)
	hboxButtons.Append(CreateButton(nil, vm, "Done",      "DONE",     nil), false)

	AddBoxToTab(Data.CurrentVM.Name, tab, vbox)
}

func createAddVmBox(tab *ui.Tab, name string, b *ButtonMap) {
	log.Println("createAddVmBox() START")
	vbox := ui.NewVerticalBox()
	vbox.SetPadded(true)

	hbox := ui.NewHorizontalBox()
	hbox.SetPadded(true)
	vbox.Append(hbox, false)

	// Add hostname entry box
	hostname := makeEntryHbox(vbox, "Hostname:", "testhost", true, "Hostname")
	memory   := makeEntryHbox(vbox, "Memory:",   "512", true, "Memory")
	disk     := makeEntryHbox(vbox, "Disk:",     "20", true, "Disk")

	log.Println("createAddVmBox() hostname, memory, disk =", hostname, memory, disk)

	vbox.Append(ui.NewHorizontalSeparator(), false)

	hboxButtons := ui.NewHorizontalBox()
	hboxButtons.SetPadded(true)
	vbox.Append(hboxButtons, false)

	var newb ButtonMap
	newb.Action	= "CREATE"
	newb.VM		= b.VM
	newb.Account	= b.Account
	newb.T		= tab
	hostname.B	= &newb
	memory.B	= &newb
	disk.B		= &newb
	hboxButtons.Append(AddButton(&newb, "Add Virtual Machine"), false)

	// hboxButtons.Append(CreateButton(nil, nil, "Add Virtual Machine","CREATE",nil), false)
	hboxButtons.Append(CreateButton(nil, nil, "Cancel",		"CLOSE", nil), false)

	name += " (" + b.Account.Nick + ")"
	AddBoxToTab(name, tab, vbox)
}