package main

import (
	"errors"
	"fmt"

	"git.chromaticdragon.app/kistaro/CardSimEngine/cardsim"
)

// Type aliases, unlike distinctly named types, are fully substitutable for
// the original type. This trims off some annoying-to-type things.
type player = cardsim.Player[*SmokeTestCollection]
type card = cardsim.Card[*SmokeTestCollection]
type cardOption = cardsim.CardOption[*SmokeTestCollection]

func makeAdditionCard(amt int) cardsim.Card[*SmokeTestCollection] {
	c := &cardsim.BasicCard[*SmokeTestCollection]{
		CardTitle: cardsim.Msgf("Additive %d", amt),
		CardText:  cardsim.Msgf("You can change the Number by %d.", amt),
		CardOptions: []cardsim.CardOption[*SmokeTestCollection]{
			&cardsim.BasicOption[*SmokeTestCollection]{
				Text: cardsim.Msgf("Add %d", amt),
				Effect: func(p *player) error {
					p.Stats.Number.Value += amt
					return nil
				},
				Output: cardsim.MsgStr("Added."),
			},
			&cardsim.BasicOption[*SmokeTestCollection]{
				Text: cardsim.Msgf("Subtract %d", amt),
				Effect: func(p *player) error {
					p.Stats.Number.Value -= amt
					return nil
				},
				Output: cardsim.MsgStr("Subtracted."),
			},
		},
		AfterOption: func(c card, p *player, _ cardOption) error {
			p.Deck.InsertRandomBottom(0.5, c)
			return nil
		},
	}
	return c
}

func makeMultiplicationCard(amt int) cardsim.Card[*SmokeTestCollection] {
	c := &cardsim.BasicCard[*SmokeTestCollection]{
		CardTitle: cardsim.Msgf("Multiplicative %d", amt),
		CardText:  cardsim.Msgf("You can multiply or divide the Number by %d, or maybe divide the Number by that.", amt),
		CardOptions: []cardsim.CardOption[*SmokeTestCollection]{
			&cardsim.BasicOption[*SmokeTestCollection]{
				Text: cardsim.Msgf("Multiply by %d", amt),
				Effect: func(p *player) error {
					p.Stats.Number.Value *= amt
					return nil
				},
				Output: cardsim.MsgStr("Multiplied."),
			},
			&cardsim.BasicOption[*SmokeTestCollection]{
				Text: cardsim.Msgf("Integer divide by %d", amt),
				Effect: func(p *player) error {
					p.Stats.Number.Value /= amt
					return nil
				},
				Output: cardsim.MsgStr("Divided."),
			},
			inverseDivision(amt),
		},
		AfterOption: func(c card, p *player, _ cardOption) error {
			p.Deck.InsertRandomBottom(0.5, c)
			return nil
		},
	}
	return c
}

type inverseDivision int

func (i inverseDivision) OptionText(p *player) (cardsim.Message, error) {
	if p.Stats.Number.Value == 0 {
		return cardsim.MsgStr("You can't divide by zero!"), nil
	}
	return cardsim.Msgf("Divide %d by the Number", int(i)), nil
}

func (i inverseDivision) Enact(p *player) (cardsim.Message, error) {
	if p.Stats.Number.Value == 0 {
		return nil, errors.New("you can't divide by zero")
	}
	p.Stats.Number.Value = int(i) / p.Stats.Number.Value
	return cardsim.MsgStr("Inverse divided."), nil
}

func (i inverseDivision) Enabled(p *player) bool {
	return p.Stats.Number.Value != 0
}

func initDeck(d *cardsim.Deck[*SmokeTestCollection]) {
	addMe := []int{
		0, 1, 2, 5, 10, 50, 100, 1000, 2500, 500000, 9876543,
	}
	for _, n := range addMe {
		d.Insert(cardsim.BottomOfDeck, makeAdditionCard(n))
	}

	multiplyMe := []int{
		2, 4, 8, 16, 32, 64, 128, 512, 1024, 9999, 84720413,
	}
	for _, n := range multiplyMe {
		d.Insert(cardsim.BottomOfDeck, makeMultiplicationCard(n))
	}
	if err := d.Shuffle(); cardsim.IsSeriousError(err) {
		panic(err)
	} else if err != nil {
		fmt.Printf("Error shuffling: %v\n", err)
	}
}

func installPermanentActions(pa *[]card) {
	*pa = []card{
		&cardsim.BasicCard[*SmokeTestCollection]{
			CardTitle: cardsim.MsgStr("Reset Number"),
			CardText:  cardsim.MsgStr("Resets Number to a fixed value."),
			CardOptions: []cardOption{
				&cardsim.BasicOption[*SmokeTestCollection]{
					Text: cardsim.MsgStr("Reset to 0."),
					Effect: func(p *player) error {
						p.Stats.Number.Value = 0
						return nil
					},
					Output: cardsim.MsgStr("Done."),
				},
				&cardsim.BasicOption[*SmokeTestCollection]{
					Text: cardsim.MsgStr("Reset to 1,000,000"),
					Effect: func(p *player) error {
						p.Stats.Number.Value = 1000000
						return nil
					},
					Output: cardsim.MsgStr("Done."),
				},
			},
		},
	}
}