package skdg

import "testing"

func TestShortRecommendDefaultsPreserveLegacyDeployment(t *testing.T) {
	var nilConfig *GlobalConfig
	if !nilConfig.ShortRecommendEnabled() {
		t.Fatal("nil config should default to enabled")
	}
	if got := nilConfig.ShortRecommendCron(); got != defaultShortRecommendCron {
		t.Fatalf("cron = %q, want %q", got, defaultShortRecommendCron)
	}
	if got := nilConfig.ShortRecommendKeyTTL(); got != 72 {
		t.Fatalf("TTL hours = %d, want 72", got)
	}
}

func TestShortRecommendExplicitConfig(t *testing.T) {
	disabled := false
	cfg := &GlobalConfig{}
	cfg.ShortRecommend.Enabled = &disabled
	cfg.ShortRecommend.Cron = "0 0 5 * * ?"
	cfg.ShortRecommend.KeyTTLHours = 96
	initializationLimit := int64(10_000)
	cfg.ShortRecommend.MaxInitializationWrites = &initializationLimit
	if cfg.ShortRecommendEnabled() {
		t.Fatal("configured disabled should be honored")
	}
	if got := cfg.ShortRecommendCron(); got != cfg.ShortRecommend.Cron {
		t.Fatalf("cron = %q", got)
	}
	if got := cfg.ShortRecommendKeyTTL(); got != 96 {
		t.Fatalf("TTL hours = %d", got)
	}
	if got := cfg.ShortRecommendInitializationLimit(); got != 10_000 {
		t.Fatalf("initialization limit = %d", got)
	}
}

func TestShortRecommendProductionDefaultsToFailClosedInitializationGuard(t *testing.T) {
	cfg := &GlobalConfig{}
	cfg.Base.Env = "prod"
	if got := cfg.ShortRecommendInitializationLimit(); got != defaultProdInitializationLimit {
		t.Fatalf("initialization limit = %d, want %d", got, defaultProdInitializationLimit)
	}
	unlimited := int64(0)
	cfg.ShortRecommend.MaxInitializationWrites = &unlimited
	if got := cfg.ShortRecommendInitializationLimit(); got != 0 {
		t.Fatalf("explicit initialization limit = %d, want 0", got)
	}
}