package miner

import (
	"os"
	"path/filepath"
	"testing"

	"crypto-miner-agent/config"
)

func TestResolveImageTarFromEnv(t *testing.T) {
	dir := t.TempDir()
	tarPath := filepath.Join(dir, "worker.tar")
	if err := os.WriteFile(tarPath, []byte("fake-tar"), 0644); err != nil {
		t.Fatal(err)
	}
	t.Setenv("AETHERFORGE_DOCKER_IMAGE_TAR", tarPath)
	defer SetImageTarFetcher(nil)

	got, err := ResolveImageTar(config.RuntimeConfig{})
	if err != nil {
		t.Fatalf("ResolveImageTar: %v", err)
	}
	if got != tarPath {
		t.Fatalf("got %q want %q", got, tarPath)
	}
	if !HasImageTarPolicy(config.RuntimeConfig{}) {
		t.Fatal("HasImageTarPolicy should be true")
	}
}

func TestResolveImageTarMissing(t *testing.T) {
	t.Setenv("AETHERFORGE_DOCKER_IMAGE_TAR", "")
	if _, err := ResolveImageTar(config.RuntimeConfig{}); err == nil {
		t.Fatal("expected error without tar")
	}
}