// 8 july 2014

package ui

// This file is called zz_test.go to keep it separate from the other files in this package (and because go test won't accept just test.go)

import (
	"fmt"
	"flag"
	"reflect"
	"testing"
	"image"
	"image/color"
	"image/draw"
	"time"
)

var closeOnClick = flag.Bool("close", false, "close on click")
var smallWindow = flag.Bool("small", false, "open a small window (test Mac OS X initial control sizing)")

type dtype struct {
	Name	string
	Address	string
}
var ddata = []dtype{
	{ "alpha", "beta" },
	{ "gamma", "delta" },
	{ "epsilon", "zeta" },
	{ "eta", "theta" },
	{ "iota", "kappa" },
}

type testwin struct {
	t		Tab
	w		Window
	fe		*ForeignEvent
	festack	Stack
	festart	Button
	felabel	Label
	festop	Button
	openbtn	Button
	fnlabel	Label
	icons	[]icon
	il		ImageList
	icontbl	Table
	group2	Group
	group	Group
	grid		Grid
	nt		Tab
	a		Area
	spw		Stack
	sph		Stack
	s		Stack
	l		Label
	table		Table
	b		Button
	c		Checkbox
	e		TextField
	e2		TextField

	wsmall	Window
}

type areaHandler struct{}
func (a *areaHandler) Paint(r image.Rectangle) *image.RGBA {
	i := image.NewRGBA(r)
	draw.Draw(i, r, &image.Uniform{color.RGBA{128,0,128,255}}, image.ZP, draw.Src)
	return i
}
func (a *areaHandler) Mouse(me MouseEvent) { fmt.Printf("%#v\n", me) }
func (a *areaHandler) Key(ke KeyEvent) { fmt.Printf("%#v %q\n", ke, ke.Key) }

func (tw *testwin) addfe() {
	tw.festart = NewButton("Start")
	tw.festart.OnClicked(func() {
		if tw.fe != nil {
			tw.fe.Stop()
		}
		ticker := time.NewTicker(1 * time.Second)
		tw.fe = NewForeignEvent(ticker.C, func(d interface{}) {
			t := d.(time.Time)
			tw.felabel.SetText(t.String())
		})
	})
	tw.felabel = NewStandaloneLabel("<stopped>")
	tw.festop = NewButton("Stop")
	tw.festop.OnClicked(func() {
		if tw.fe != nil {
			tw.fe.Stop()
			tw.felabel.SetText("<stopped>")
			tw.fe = nil
		}
	})
	tw.openbtn = NewButton("Open")
	tw.openbtn.OnClicked(func() {
		fn := OpenFile()
		if fn == "" {
			fn = "<no file selected>"
		}
		tw.fnlabel.SetText(fn)
	})
	tw.fnlabel = NewStandaloneLabel("<no file selected>")
	tw.festack = NewVerticalStack(tw.festart, tw.felabel, tw.festop,
		Space(),
		tw.openbtn, tw.fnlabel)
	tw.festack.SetStretchy(3)
	tw.t.Append("Foreign Events", tw.festack)
}

func (tw *testwin) make(done chan struct{}) {
	tw.t = NewTab()
	tw.w = NewWindow("Hello", 320, 240, tw.t)
	tw.w.OnClosing(func() bool {
		if *closeOnClick {
			panic("window closed normally in close on click mode (should not happen)")
		}
		println("window close event received")
		Stop()
		done <- struct{}{}
		return true
	})
	tw.addfe()
	tw.icons, tw.il = readIcons()
	tw.icontbl = NewTable(reflect.TypeOf(icon{}))
	tw.icontbl.Lock()
	idq := tw.icontbl.Data().(*[]icon)
	*idq = tw.icons
	tw.icontbl.Unlock()
	tw.icontbl.LoadImageList(tw.il)
	tw.t.Append("Image List Table", tw.icontbl)
	tw.group2 = NewGroup("Group", NewButton("Button in Group"))
	tw.t.Append("Filled Group", tw.group2)
	tw.group = NewGroup("Group", NewVerticalStack(NewCheckbox("Checkbox in Group")))
	tw.t.Append("Group", tw.group)
	tw.grid = NewGrid(3,
		NewLabel("0,0"), NewTextField(), NewLabel("0,2"),
		NewButton("1,0"), NewButton("1,1"), NewButton("1,2"),
		NewLabel("2,0"), NewTextField(), NewStandaloneLabel("2,2"))
	tw.grid.SetFilling(2, 1)
	tw.grid.SetFilling(1, 2)
	tw.grid.SetStretchy(1, 1)
	tw.t.Append("Grid", tw.grid)
	tw.t.Append("Blank Tab", NewTab())
	tw.nt = NewTab()
	tw.nt.Append("Tab 1", Space())
	tw.nt.Append("Tab 2", Space())
	tw.t.Append("Tab", tw.nt)
	tw.t.Append("Space", Space())
	tw.a = NewArea(200, 200, &areaHandler{})
	tw.t.Append("Area", tw.a)
	tw.spw = NewHorizontalStack(
		NewButton("hello"),
		NewCheckbox("hello"),
		NewTextField(),
		NewPasswordField(),
		NewTable(reflect.TypeOf(struct{A,B,C int}{})),
		NewStandaloneLabel("hello"))
	tw.t.Append("Pref Width", tw.spw)
	tw.sph = NewVerticalStack(
		NewButton("hello"),
		NewCheckbox("hello"),
		NewTextField(),
		NewPasswordField(),
		NewTable(reflect.TypeOf(struct{A,B,C int}{})),
		NewStandaloneLabel("hello ÉÀÔ"))
	tw.t.Append("Pref Height", tw.sph)
	stack1 := NewHorizontalStack(NewLabel("Test"), NewTextField())
	stack1.SetStretchy(1)
	stack2 := NewHorizontalStack(NewLabel("ÉÀÔ"), NewTextField())
	stack2.SetStretchy(1)
	stack3 := NewHorizontalStack(NewLabel("Test 2"),
		NewTable(reflect.TypeOf(struct{A,B,C int}{})))
	stack3.SetStretchy(1)
	tw.s = NewVerticalStack(stack1, stack2, stack3)
	tw.s.SetStretchy(2)
	tw.t.Append("Stack", tw.s)
	tw.l = NewStandaloneLabel("hello")
	tw.t.Append("Label", tw.l)
	tw.table = NewTable(reflect.TypeOf(ddata[0]))
	tw.table.Lock()
	dq := tw.table.Data().(*[]dtype)
	*dq = ddata
	tw.table.Unlock()
	tw.t.Append("Table", tw.table)
	tw.b = NewButton("There")
	if *closeOnClick {
		tw.b.SetText("Click to Close")
	}
	tw.b.OnClicked(func() {
		println("in OnClicked()")
		if *closeOnClick {
			tw.w.Close()
			Stop()
			done <- struct{}{}
		}
	})
	tw.t.Append("Button", tw.b)
	tw.c = NewCheckbox("You Should Now See Me Instead")
	tw.c.OnToggled(func() {
		tw.w.SetTitle(fmt.Sprint(tw.c.Checked()))
	})
	tw.t.Append("Checkbox", tw.c)
	tw.e = NewTextField()
	tw.t.Append("Text Field", tw.e)
	tw.e2 = NewPasswordField()
	tw.t.Append("Password Field", tw.e2)
	tw.w.Show()
	if *smallWindow {
		tw.wsmall = NewWindow("Small", 80, 80,
			NewVerticalStack(
				NewButton("Small"),
				NewButton("Small 2"),
				NewArea(200, 200, &areaHandler{})))
		tw.wsmall.Show()
	}
}

// this must be on the heap thanks to moving stacks
// soon even this won't be enough...
var tw *testwin

// because Cocoa hates being run off the main thread, even if it's run exclusively off the main thread
func init() {
	flag.BoolVar(&spaced, "spaced", false, "enable spacing")
	flag.Parse()
	go func() {
		tw = new(testwin)
		done := make(chan struct{})
		Do(func() { tw.make(done) })
		<-done
	}()
	err := Go()
	if err != nil {
		panic(err)
	}
}

func TestDummy(t *testing.T) {
	// do nothing
}