package atlas

import "testing"

func TestSubnetPrefixIPv4(t *testing.T) {
	if got := SubnetPrefix("192.168.1.42"); got != "192.168.1" {
		t.Fatalf("SubnetPrefix = %q", got)
	}
	if got := SubnetPrefix("192.168.1.42:12345"); got != "192.168.1" {
		t.Fatalf("SubnetPrefix host:port = %q", got)
	}
}

func TestNormalizeGossipHints(t *testing.T) {
	hints := NormalizeGossipHints([]GossipHint{
		{Tier: " docker ", Condition: "no_docker", Reason: "blocked"},
		{Tier: "", Condition: "x"},
		{Tier: "wsl", Condition: "defender_on"},
	})
	if len(hints) != 2 {
		t.Fatalf("want 2 hints, got %+v", hints)
	}
	if hints[0].Tier != "docker" || hints[0].Reason != "blocked" {
		t.Fatalf("first hint = %+v", hints[0])
	}
	if hints[1].Reason != "lan gossip" {
		t.Fatalf("default reason = %q", hints[1].Reason)
	}
}

func TestMergeGossipSkipsDedupes(t *testing.T) {
	existing := []AtlasSkip{{Tier: "docker", Condition: "no_docker", Reason: "fleet"}}
	merged := MergeGossipSkips(existing, []GossipHint{
		{Tier: "docker", Condition: "no_docker", Reason: "lan"},
		{Tier: "wsl", Condition: "defender_on", Reason: "lan"},
	})
	if len(merged) != 2 {
		t.Fatalf("merged = %+v", merged)
	}
	if merged[1].Tier != "wsl" {
		t.Fatalf("second skip = %+v", merged[1])
	}
}