package gui

import (
	"log"
	"strconv"
	"time"

	"github.com/andlabs/ui"

	// import "regexp"

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

func initUI(name string, callback func(*GuiBox) *GuiBox) {
	ui.Main(func() {
		log.Println("gui.initUI() inside ui.Main()")

		box := InitWindow(nil, "StartNewWindow"+name, 0)
		box = callback(box)
		window := box.Window
		log.Println("StartNewWindow() box =", box)

		window.UiWindow.Show()
	})
}

func StartNewWindow(bg bool, name string, axis int, callback func(*GuiBox) *GuiBox) {
	log.Println("StartNewWindow() ui.Main() Create a new window")

	if bg {
		go initUI(name, callback)
		time.Sleep(500 * time.Millisecond) // this might make it more stable on windows?
	} else {
		initUI(name, callback)
	}
}

func MessageWindow(gw *GuiWindow, msg1 string, msg2 string) {
	ui.MsgBox(gw.UiWindow, msg1, msg2)
}

func ErrorWindow(gw *GuiWindow, msg1 string, msg2 string) {
	ui.MsgBoxError(gw.UiWindow, msg1, msg2)
}

//
// This creates a new 'window' (which is just a tab in the window)
// This is this way because on Linux you can have more than one
// actual window but that does not appear to work on the MacOS or Windows
//
func InitWindow(gw *GuiWindow, name string, axis int) *GuiBox {
	log.Println("InitGuiWindow() START")

	var box *GuiBox
	if gw == nil {
		box = mapWindow(nil, name, Config.Height, Config.Width)
	} else {
		box = mapWindow(gw.UiWindow, name, Config.Height, Config.Width)
	}

	// box.Window = &newGuiWindow
	newGuiWindow := box.Window

	// This is the first window. One must create it here
	if gw == nil {
		log.Println("initWindow() ADDING ui.NewWindow()")
		w := uiNewWindow(name, Config.Height, Config.Width)
		newGuiWindow.UiWindow = w

		// newGuiWindow.UiWindow.SetTitle("test")
		w.OnClosing(func(*ui.Window) bool {
			log.Println("initTabWindow() OnClosing() THIS WINDOW IS CLOSING newGuiWindow=", newGuiWindow)
			// newGuiWindow.UiWindow.Destroy()
			if Config.Exit == nil {
				ui.Quit()
			} else {
				// allow a custom exit function
				Config.Exit(newGuiWindow)
			}
			return true
		})

		newGuiWindow.UiTab = ui.NewTab()
		newGuiWindow.UiWindow.SetChild(newGuiWindow.UiTab)
		newGuiWindow.UiWindow.SetMargined(true)
		tmp := 0
		newGuiWindow.TabNumber = &tmp
	} else {
		newGuiWindow.UiWindow = gw.UiWindow
		newGuiWindow.UiTab = gw.UiTab
	}

	newGuiWindow.BoxMap = make(map[string]*GuiBox)
	newGuiWindow.EntryMap = make(map[string]*GuiEntry)
	// Data.Windows = append(Data.Windows, &newGuiWindow)

	if newGuiWindow.UiTab == nil {
		tabnum := 0
		newGuiWindow.TabNumber = &tabnum
	} else {
		tabnum := newGuiWindow.UiTab.NumPages()
		newGuiWindow.TabNumber = &tabnum
	}

	Data.WindowMap[newGuiWindow.Name] = newGuiWindow

	log.Println("InitGuiWindow() END *GuiWindow =", newGuiWindow)
	return box
}

func DeleteWindow(name string) {
	log.Println("gui.DeleteWindow() START name =", name)
	window := Data.WindowMap[name]
	if window == nil {
		log.Println("gui.DeleteWindow() NO WINDOW WITH name =", name)
		return
	}

	log.Println("gui.DumpBoxes() MAP: ", name)
	log.Println("gui.DumpBoxes()\tWindow.name =", window.Name)
	if window.TabNumber == nil {
		log.Println("gui.DumpBoxes() \tWindows.TabNumber = nil")
	}
	tab := *window.TabNumber
	log.Println("gui.DumpBoxes() \tWindows.TabNumber =", tab)
	log.Println("gui.DumpBoxes() \tSHOULD DELETE TAB", tab, "HERE")
	window.UiTab.Delete(tab)
	delete(Data.WindowMap, name)

	// renumber tabs here
	for name, window := range Data.WindowMap {
		log.Println("gui.DumpBoxes() MAP: ", name)
		if window.TabNumber == nil {
			log.Println("gui.DumpBoxes() \tWindows.TabNumber = nil")
		} else {
			log.Println("gui.DumpBoxes() \tWindows.TabNumber =", *window.TabNumber)
			if tab < *window.TabNumber {
				log.Println("gui.DumpBoxes() \tSubtracting 1 from TabNumber")
				*window.TabNumber -= 1
				log.Println("gui.DumpBoxes() \tWindows.TabNumber is now =", *window.TabNumber)
			}
		}
	}
}

func CreateWindow(title string, tabname string, x int, y int, custom func() ui.Control) *GuiBox {
	box := CreateBlankWindow(title, x, y)
	box.InitTab(title, custom)
	return box
}

func uiNewWindow(title string, x int, y int) *ui.Window {
	var node Node
	node.Name = title
	node.Width = x
	node.Height = y
	Data.NodeMap[title] = &node

	w := ui.NewWindow(title, x, y, false)
	w.SetBorderless(false)
	w.OnClosing(func(*ui.Window) bool {
		log.Println("ui.Window().OnClosing() IS EMPTY FOR window name =", title)
		return true
	})

	w.SetMargined(true)
	w.Show()

	return w
}

func CreateBlankWindow(title string, x int, y int) *GuiBox {
	box := mapWindow(nil, title, x, y)
	log.Println("gui.CreateBlankWindow() title = box.Name =", box.Name)

	window := uiNewWindow(box.Name, x, y)

	ui.OnShouldQuit(func() bool {
		log.Println("createWindow().Destroy()", box.Name)
		window.Destroy()
		return true
	})

	box.Window.UiWindow = window
	return box
}

func InitBlankWindow() ui.Control {
	hbox := ui.NewHorizontalBox()
	hbox.SetPadded(true)

	return hbox
}

var master = 0

func mapWindow(window *ui.Window, title string, x int, y int) *GuiBox {
	log.Println("gui.WindowMap START title =", title)
	if Data.WindowMap[title] != nil {
		log.Println("Data.WindowMap[title] already exists title =", title)
		master = master + 1
		title = title + " jcarr " + strconv.Itoa(master)
	}
	if Data.WindowMap[title] != nil {
		log.Println("Data.WindowMap[title] already exists title =", title)
		panic("Data.WindowMap[newGuiWindow.Name] already exists")
		return nil
	}

	log.Println("gui.WindowMap START title =", title)
	var newGuiWindow GuiWindow
	newGuiWindow.Width = x
	newGuiWindow.Height = y
	newGuiWindow.Name = title
	newGuiWindow.UiWindow = window

	newGuiWindow.BoxMap = make(map[string]*GuiBox)
	newGuiWindow.EntryMap = make(map[string]*GuiEntry)

	Data.WindowMap[newGuiWindow.Name] = &newGuiWindow

	var box GuiBox
	box.Window = &newGuiWindow
	box.Name = title

	newGuiWindow.BoxMap["jcarrInitTest"] = &box

	return &box
}

func NewWindow(title string, x int, y int) *GuiBox {
	box := mapWindow(nil, title, x, y)
	log.Println("gui.NewWindow() title = box.Name =", box.Name)

	window := uiNewWindow(box.Name, x, y)

	ui.OnShouldQuit(func() bool {
		log.Println("createWindow().Destroy()", box.Name)
		window.Destroy()
		return true
	})

	box.Window.UiWindow = window
	return box
}