package store

import (
	"testing"

	"github.com/cosmic-clash/cosmic-clash/server/domain"
)

func TestLoadTierPolicyRejectsMissingDatabase(t *testing.T) {
	if _, err := LoadTierPolicy(nil, nil); err == nil {
		t.Fatal("a nil database was accepted")
	}
}

func TestTierBandSelectIsOrderedByThreshold(t *testing.T) {
	// domain.NewTierPolicy requires strictly ascending thresholds, so the
	// ORDER BY is part of the contract rather than presentation.
	if !contains(TierBandSelectSQL, "ORDER BY min_rating") {
		t.Fatalf("tier band query is not ordered: %q", TierBandSelectSQL)
	}
}

// PROVISIONAL is derived from a player's ranked game count, not their rating.
// A durable band claiming it would be unreachable at best, and would shadow a
// real tier at worst.
func TestProvisionalIsNotAValidDurableBand(t *testing.T) {
	if _, ok := validTierBandTiers[domain.RankTierProvisional]; ok {
		t.Fatal("PROVISIONAL is accepted as a durable tier band")
	}
	for _, tier := range []domain.RankTier{
		domain.RankTierBronze, domain.RankTierSilver, domain.RankTierGold,
		domain.RankTierPlatinum, domain.RankTierDiamond,
	} {
		if _, ok := validTierBandTiers[tier]; !ok {
			t.Fatalf("%q is not accepted as a durable tier band", tier)
		}
	}
}