package config

import "testing"

func TestSpreadStrainFromJoinLane(t *testing.T) {
	a := SpreadStrainFromJoinLane("winrm")
	b := SpreadStrainFromJoinLane("winrm")
	if a == "" || a != b {
		t.Fatalf("strain not stable: %q vs %q", a, b)
	}
	if a[0] != '#' || len(a) != 7 {
		t.Fatalf("expected #RRGGBB, got %q", a)
	}
	if SpreadStrainFromJoinLane("dns_txt") == a {
		t.Fatal("different lanes should produce different strains")
	}
	if SpreadStrainFromJoinLane("") != "" {
		t.Fatal("empty lane should yield empty strain")
	}
}

func TestGenealogyReportBakedAndRuntime(t *testing.T) {
	cfg := RuntimeConfig{BuiltinConfig: BuiltinConfig{
		ParentAgentID:    "parent-uuid",
		SpreadGeneration: 2,
		BakedJoinLane:    "gpo",
	}}
	parent, gen, strain := cfg.GenealogyReport("")
	if parent != "parent-uuid" || gen != 2 {
		t.Fatalf("baked parent/gen: %q %d", parent, gen)
	}
	if strain != SpreadStrainFromJoinLane("gpo") {
		t.Fatalf("strain from baked join lane: %q", strain)
	}

	cfg2 := RuntimeConfig{BuiltinConfig: BuiltinConfig{SpreadGeneration: 0}}
	t.Setenv("AETHER_PARENT_AGENT_ID", "env-parent")
	t.Setenv("AETHER_SPREAD_GENERATION", "3")
	p2, g2, s2 := cfg2.GenealogyReport("winrm")
	if p2 != "env-parent" || g2 != 3 {
		t.Fatalf("env overrides: %q %d", p2, g2)
	}
	if s2 != SpreadStrainFromJoinLane("winrm") {
		t.Fatalf("runtime join lane strain: %q", s2)
	}
}