package main

import (
	"github.com/hajimehoshi/ebiten/v2"
	"github.com/hajimehoshi/ebiten/v2/inpututil"

	"muhq.space/muhqs-game/go/game"
	"muhq.space/muhqs-game/go/ui"
)

const (
	SEALED_DECK_STRIP_WIDTH = 200
)

type sealed struct {
	ui.Collection
	app *app

	setInput *ui.TextInput

	pool game.PileOfCards
	deck game.PileOfCards
}

func NewSealed(width, height int, app *app) *sealed {
	s := &sealed{
		app:        app,
		Collection: ui.Collection{Width: width, Height: height},
	}

	s.AddWidget(ui.NewFixedTextBox(
		(s.Width-START_BUTTON_WIDTH)/2-START_BUTTON_WIDTH,
		(s.Height-START_BUTTON_HEIGHT)/2-START_BUTTON_HEIGHT,
		START_BUTTON_WIDTH,
		START_BUTTON_HEIGHT,
		"sets:",
	).Centering(true))

	s.setInput = ui.NewTextInput(
		(s.Width-START_BUTTON_WIDTH)/2,
		(s.Height-START_BUTTON_HEIGHT)/2-START_BUTTON_HEIGHT,
		START_BUTTON_WIDTH,
		START_BUTTON_HEIGHT,
		"base,equipments,magic",
	)
	s.AddWidget(s.setInput)

	s.AddWidget(ui.NewSimpleButton(
		(s.Width-START_BUTTON_WIDTH)/2,
		(s.Height-START_BUTTON_HEIGHT)/2,
		START_BUTTON_WIDTH,
		START_BUTTON_HEIGHT,
		"Start",
		func(*ui.SimpleButton) {
			s.startSealed(s.setInput.TextOrLabel())
		}))

	return s
}

func (s *sealed) Update() error {
	if err := ui.TouchManager.Update(); err != nil {
		return err
	}

	if err := s.Collection.Update(); err != nil {
		return err
	}

	if inpututil.IsKeyJustPressed(ebiten.KeyEscape) {
		s.app.popActivity()
	}

	return nil
}

func (s *sealed) Layout(width, height int) (int, int) {
	return s.Width, s.Height
}

func (s *sealed) startSealed(setList string) {
	sets, err := game.SetListToSets(setList)
	if err != nil {
		s.setInput.Bg(ui.WarningBg)
		s.setInput.SetInput("")
		return
	}

	s.pool = game.NewPileOfCards()
	s.deck = game.NewPileOfCards()

	s.Clear()

	for _, set := range sets {
		setDeck := game.NewDeck()
		for _, c := range game.NewDeckFromCardPaths(set.CardPaths()).Cards() {
			if c.IsBuyable() {
				setDeck.AddCard(c)
			}
		}
		setDeck.MoveInto(s.pool)
	}

	deckList := ui.NewPocList(s.Width-SEALED_DECK_STRIP_WIDTH/2, s.Height-START_BUTTON_HEIGHT-20, s.deck)
	deckList.Bg(ui.Gray)
	s.AddWidget(deckList)

	grid := ui.NewCardGrid(0, 0, s.Width-SEALED_DECK_STRIP_WIDTH, s.Height, 0.5, s.pool).Columns(3)
	selectCard := func(x, y int) {
		_card := grid.FindObjectAt(x, y)
		if _card == nil {
			return
		}

		card := _card.(*game.Card)
		s.pool.MoveCard(card, s.deck)
		grid.ForceRedraw()
		deckList.ForceRedraw()
	}
	grid.RegisterHandler("click", selectCard)
	s.AddWidget(grid)

	s.AddWidget(ui.NewSimpleButton(
		s.Width-SEALED_DECK_STRIP_WIDTH/2-START_BUTTON_WIDTH/2,
		s.Height-START_BUTTON_HEIGHT,
		START_BUTTON_WIDTH,
		START_BUTTON_HEIGHT,
		"Done",
		func(*ui.SimpleButton) {
			s.done()
		}))
}

func (s *sealed) done() {
	startMenu := s.app.activities[len(s.app.activities)-2].(*StartMenu)
	startMenu.deckInput.SetInput(s.deck.ToList())
	s.app.popActivity()
}