package main

import (
	"github.com/nsf/termbox-go"
	"gogs.bullercodeworks.com/brian/termbox-util"
)

type command struct {
	key         string
	description string
}

type titleScreen struct {
	titleArt    *termboxUtil.ASCIIArt
	menu        *termboxUtil.Menu
	initialized bool
}

func (screen *titleScreen) handleKeyEvent(event termbox.Event) int {
	if screen.menu.HandleKeyPress(event) {
		if screen.menu.IsDone() {
			selOpt := screen.menu.GetSelectedOption()
			if selOpt.GetText() == "Exit" {
				return exitScreenIndex
			} else if selOpt.GetText() == "New Game" {
				screen.initialized = false
				return mainScreenIndex
			}
		}
	}
	return titleScreenIndex
}

func (screen *titleScreen) performLayout(style style) {
	if !screen.initialized {
		var tmplt []string
		tmplt = append(tmplt, "                            ")
		tmplt = append(tmplt, "                            ")
		tmplt = append(tmplt, "         gopher.bas         ")
		tmplt = append(tmplt, "                            ")
		tmplt = append(tmplt, "                            ")
		tmplt = append(tmplt, "                            ")

		defaultFg := style.defaultFg
		defaultBg := style.defaultBg
		screen.titleArt = termboxUtil.CreateASCIIArt(tmplt, 0, 0, defaultFg, defaultBg)
		w, h := termbox.Size()
		screen.titleArt.Align(termboxUtil.AlignCenter, w)

		menuX := w/2 - 10
		menuY := h/2 - 5

		screen.menu = termboxUtil.CreateMenu("",
			[]string{"New Game", "Continue", "Exit"},
			menuX, menuY, 20, 10, defaultFg, defaultBg,
		)
		// TODO: Check if we have a suspended game
		screen.menu.SetOptionDisabled(1)
		screen.menu.SetBordered(true)
		screen.menu.EnableVimMode()
		screen.initialized = true
	}
}

func (screen *titleScreen) update() {}

func (screen *titleScreen) drawScreen(style style) {
	screen.titleArt.Draw()
	screen.menu.Draw()
}