package strategy

import (
	"testing"

	"crypto-miner-server/internal/db"
)

func TestWindowsDockerFingerprintPromotesContainer(t *testing.T) {
	database, err := db.New(t.TempDir())
	if err != nil {
		t.Fatal(err)
	}
	t.Cleanup(func() { _ = database.Close() })

	fp := HostFingerprint{GOOS: "windows", Docker: true, Subnet: "192.168.1"}
	key := fp.Key()

	for i := 0; i < 4; i++ {
		if err := database.InsertTierOutcome("agent-a", key, "exe_subprocess", false, 0, "mining"); err != nil {
			t.Fatal(err)
		}
	}
	for i := 0; i < 3; i++ {
		if err := database.InsertTierOutcome("agent-b", key, "container", true, 1200, "mining"); err != nil {
			t.Fatal(err)
		}
	}

	engine := NewAdaptiveEngine(database, true)
	strat := engine.ScoreTierOrder(fp)

	if strat.TierOrder[0] != "container" {
		t.Fatalf("container should be first on Windows+docker; got %v", strat.TierOrder)
	}
	if indexOf(strat.SkipTiers, "exe_subprocess") < 0 {
		t.Fatalf("exe_subprocess should be skipped; got %v", strat.SkipTiers)
	}
	if len(strat.Reasoning) == 0 {
		t.Fatal("expected reasoning trace")
	}
}

func TestFingerprintKeyStable(t *testing.T) {
	fp := HostFingerprint{GOOS: "windows", Docker: true, Subnet: "10.0.0"}
	if got := fp.Key(); got != "windows|1|0|0|0|0|10.0.0" {
		t.Fatalf("key = %q", got)
	}
}

func indexOf(order []string, tier string) int {
	for i, t := range order {
		if t == tier {
			return i
		}
	}
	return -1
}