// Demo code for the TabbedPanels primitive.
package main

import (
	"fmt"

	//"github.com/rivo/tview"
	"github.com/gdamore/tcell/v2"
	"code.rocketnine.space/tslocum/cview"
)

const panelCount = 5


func demoBox(title string) *cview.Box {
		b := cview.NewBox()
		b.SetBorder(true)
		b.SetTitle(title)
		return b
	}


func main() {

	app := cview.NewApplication()
	defer app.HandlePanic()
	app.EnableMouse(true)

	panels := NewTabbedPanels()

	for panel := 0; panel < panelCount; panel++ {
		func(panel int) {
			form := cview.NewForm()
			form.SetBorder(true)
			form.SetDrawFunc(func(screen tcell.Screen, x int, y int, width int, height int) (int, int, int, int) {
				//fix corners
				screen.SetContent(x, y, cview.BoxDrawingsLightVertical, nil, tcell.StyleDefault.Background(tcell.Color16))
				screen.SetContent(x+width-1, y, cview.BoxDrawingsLightVertical, nil, tcell.StyleDefault.Background(tcell.Color16))
				// Draw nothing across the top of the box.
			    for cx := x + 1; cx < x+width-1; cx++ {
			      screen.SetContent(cx, y, ' ', nil, tcell.StyleDefault.Background(tcell.Color16))
			    }
			    // Space for other content.
			    return x + 1, y, width - 2, height - y +1
			})
			//form.SetTitle(fmt.Sprintf("This is tab %d. Choose another tab.", panel+1))
			form.AddButton("Next", func() {
				panels.SetCurrentTab(fmt.Sprintf("panel-%d", (panel+1)%panelCount))
			})
			form.AddButton("Quit", func() {
				app.Stop()
			})
			form.SetCancelFunc(func() {
				app.Stop()
			})

			panels.AddTab(fmt.Sprintf("panel-%d", panel), fmt.Sprintf("Panel #%d", panel), form)
		}(panel)
	}

	subFlex := cview.NewFlex()
	subFlex.SetDirection(cview.FlexRow)
	subFlex.AddItem(demoBox("Top"), 0, 1, false)
	subFlex.AddItem(panels, 0, 3, false)
	subFlex.AddItem(demoBox("Bottom (5 rows)"), 5, 1, false)

	flex := cview.NewFlex()
	flex.AddItem(demoBox("Left (1/2 x width of Top)"), 0, 1, false)
	flex.AddItem(subFlex, 0, 2, false)
	flex.AddItem(demoBox("Right (20 cols)"), 20, 1, false)

	app.SetRoot(flex, true)
	if err := app.Run(); err != nil {
		panic(err)
	}

	//app := cview.NewApplication()
	//defer app.HandlePanic()

	

	

	//app.SetRoot(panels, true)
	//if err := app.Run(); err != nil {
	//	panic(err)
	//}
}