package main

import (
	"go.wit.com/dev/andlabs/ui"
	"go.wit.com/log"
	"go.wit.com/toolkits/tree"
	"go.wit.com/widget"
)

// this will check to make sure that the node
// is valid for making a New TK andlabs widget
// Basically, it makes sure there is a parent ID
// and that there already a widget created
func notNew(n *tree.Node) bool {
	if n == nil {
		log.Log(ERROR, "notNew() n = nil")
		return true
	}
	if n.TK != nil {
		log.Log(ERROR, "notNew() n.TK = nil", n.WidgetId, n.GetProgName())
		return true
	}
	if n.Parent == nil {
		log.Log(ERROR, "notNew() n.Parent = nil", n.WidgetId, n.GetProgName())
		return true
	}
	if n.Parent.TK == nil {
		if n.Parent.WidgetId == 0 {
			// this is normal if the widget type is a window
			if n.WidgetType == widget.Window {
				return true
			}
		}
		log.Log(ERROR, "notNew() n.Parent.TK = nil", n.WidgetId, n.GetProgName())
		log.Log(ERROR, "notNew() n.Parent.TK = nil", n.Parent.WidgetId, n.Parent.GetProgName())
		return true
	}
	// this means you can add a new widgets
	return false
}

func tkbad(n *tree.Node) bool {
	if n == nil {
		log.Log(ERROR, "tkbad() n = nil")
		return true
	}
	if n.TK == nil {
		log.Log(ERROR, "tkbad() n.TK = nil", n.WidgetId, n.GetProgName())
		return true
	}
	return false
}

// this makes sure widget and it's parent exists
func ready(n *tree.Node) bool {
	if n == nil {
		log.Log(ERROR, "ready() n = nil")
		return false
	}
	if n.TK == nil {
		log.Log(ERROR, "ready() n.TK = nil", n.WidgetId, n.GetProgName())
		return false
	}
	if n.Parent == nil {
		log.Log(ERROR, "ready() n.Parent = nil", n.WidgetId, n.GetProgName())
		return false
	}
	if n.Parent.TK == nil {
		if n.Parent.WidgetId == 0 {
			// this is normal if the widget type is a window
			if n.WidgetType == widget.Window {
				return false
			}
		}
		log.Log(ERROR, "ready() n.Parent.TK = nil", n.WidgetId, n.GetProgName())
		log.Log(ERROR, "ready() n.Parent.TK = nil", n.Parent.WidgetId, n.Parent.GetProgName())
		return false
	}
	return true
}

func hide(n *tree.Node) {
	show(n, false)
	n.State.Hidden = true
}

func show(n *tree.Node, b bool) {
	if tkbad(n) {
		return
	}
	var tk *guiWidget
	tk = n.TK.(*guiWidget)
	// tk = getTK(n)

	if tk == nil {
		return
	}
	if tk.uiControl == nil {
		return
	}
	if b {
		tk.uiControl.Show()
	} else {
		tk.uiControl.Hide()
	}
}

func enable(n *tree.Node, b bool) {
	if !ready(n) {
		return
	}
	var tk *guiWidget
	tk = n.TK.(*guiWidget)
	if tk.uiControl == nil {
		return
	}
	if b {
		tk.uiControl.Enable()
	} else {
		tk.uiControl.Disable()
	}
}

func pad(n *tree.Node, b bool) {
	if tkbad(n) {
		return
	}
	log.Log(ANDLABS, "pad() on WidgetId =", n.WidgetId)

	t := n.TK.(*guiWidget)
	if t == nil {
		log.Log(ERROR, "pad() toolkit struct == nil. for", n.WidgetId)
		return
	}

	switch n.WidgetType {
	case widget.Window:
		t.uiWindow.SetMargined(b)
		t.uiWindow.SetBorderless(b)
	case widget.Tab:
		tabSetMargined(t.uiTab, b)
	case widget.Group:
		t.uiGroup.SetMargined(b)
	case widget.Grid:
		t.uiGrid.SetPadded(b)
	case widget.Box:
		t.uiBox.SetPadded(b)
	default:
		log.Log(ERROR, "TODO: implement pad() for", n.WidgetType, n.GetProgName())
	}
}

func widgetDelete(n *tree.Node) {
	log.Log(ANDLABS, "widgetDelete()", n.WidgetId, n.WidgetType)
	var tk *guiWidget
	tk = n.TK.(*guiWidget)

	if n.WidgetType == widget.Window {
		log.Log(ANDLABS, "DESTROY uiWindow here")
		log.Log(ANDLABS, "DESTROY NEED TO REMOVE n from parent.Children")
		if tk.uiWindow != nil {
			tk.uiWindow.Destroy()
			tk.uiWindow = nil
		}
		n.DeleteNode()
	} else {
		log.Log(ANDLABS, "DESTROY can't destroy TODO:", n.WidgetId, n.WidgetType)
	}
}

func SetTitle(n *tree.Node, s string) {
	SetText(n, s)
}

func SetLabel(n *tree.Node, s string) {
	SetText(n, s)
}

func SetText(n *tree.Node, s string) {
	if n == nil {
		log.Log(WARN, "Tree Error: Add() sent n == nil")
		return
	}
	if n.TK == nil {
		log.Log(WARN, "Tree sent an action on a widget we didn't seem to have.")
		return
	}
	setText(n, s)
	log.Log(ANDLABS, "SetText() (new)", n.WidgetType, n.String(), s)
}

func AddText(n *tree.Node, s string) {
	if n == nil {
		log.Log(WARN, "Tree Error: Add() sent n == nil")
		return
	}
	if n.TK == nil {
		log.Log(WARN, "Tree sent an action on a widget we didn't seem to have.")
		return
	}
	log.Log(ANDLABS, "AddText()", n.WidgetType, n.String())
	// w := n.TK.(*guiWidget)
	// w.AddText(s)
	addText(n, s)
}

func newAction(n *tree.Node, atype widget.ActionType) {
	log.Log(INFO, "newaction() START", atype)
	if n == nil {
		log.Log(WARN, "Tree Error: Add() sent n == nil")
		return
	}
	if n.TK == nil {
		log.Log(WARN, "Tree sent an action on a widget we didn't seem to have.")
		// do this init here again? Probably something
		// went wrong and we should reset the our while gocui.View tree
		n.TK = initWidget(n)
	}
	// w := n.TK.(*guiWidget)
	switch atype {
	case widget.Show:
		log.Log(ANDLABS, "Show() HERE. a.Hidden() was =", n.Hidden())
		show(n, true)
	case widget.Hide:
		log.Log(ANDLABS, "Hide() HERE. a.State.Hidden was =", n.Hidden())
		hide(n)
	case widget.Move:
		log.Log(ANDLABS, "attempt to move() =", atype, n.WidgetType, n.ProgName())
	case widget.ToolkitClose:
		log.Log(NOW, "attempting to Quit andlabs.ui")
		// standardClose()
		ui.Quit()
	case widget.Enable:
		enable(n, true)
	case widget.Disable:
		enable(n, false)
	case widget.Delete:
		widgetDelete(n)
	default:
		log.Log(ERROR, "newaction() UNHANDLED Action Type =", atype, "WidgetType =", n.WidgetType, "Name =", n.ProgName())
	}
	log.Log(INFO, "newaction() END", atype, n.String())
}