package game

import "testing"

// TestRandomBattlesTerminate throws thousands of random decks (drawn from
// every tier's real cards, plus apples, bees, and perks) at the battle
// resolver, checking it always terminates with a sane event log and a
// consistent winner. This is the safety net for effect interactions no
// hand-written scenario covers.
func TestRandomBattlesTerminate(t *testing.T) {
	names := []string{}
	for _, tier := range petTiers {
		for _, tmpl := range tier {
			names = append(names, tmpl.Name)
		}
	}
	foods := []string{"Honey", "Garlic", "Pineapple", "Chili", "Melon"}

	for i := range 3000 {
		g, _, _ := testGame(t)
		buildDeck := func() []Card {
			deck := make([]Card, 0, 10)
			for range 1 + randInt(6) {
				switch randInt(5) {
				case 0:
					deck = append(deck, g.newApple())
				case 1:
					deck = append(deck, g.realFood(t, foods[randInt(len(foods))]))
				case 2:
					deck = append(deck, g.newBee())
				default:
					deck = append(deck, g.realPet(t, names[randInt(len(names))]))
				}
			}
			return deck
		}
		g.Round = 1 + randInt(MaxRounds)
		res := forceBattle(t, g, buildDeck(), buildDeck())
		if len(res.Events) > 2000 {
			t.Fatalf("battle %d produced a runaway event log (%d events)", i, len(res.Events))
		}
		if res.WinnerSeat < -1 || res.WinnerSeat > 1 {
			t.Fatalf("battle %d: bogus winner %d", i, res.WinnerSeat)
		}
		if res.WinnerSeat >= 0 && res.Trophies < 1 {
			t.Fatalf("battle %d: winner without trophies", i)
		}
	}
}