package mcpclient

import (
	"context"
	"os"
	"path/filepath"
	"strings"
	"testing"
)

func TestFilesystemConfig(t *testing.T) {
	dir := t.TempDir()
	c := ServerConfig{Name: "Files", Transport: "filesystem", Enabled: true, Args: []string{dir}, TimeoutSeconds: 20, Command: "should-not-run", URL: "http://unused"}
	normalized, err := normalize(c)
	if err != nil || normalized.Command != "" || normalized.URL != "" {
		t.Fatalf("normalize: %+v %v", normalized, err)
	}
	for _, dirs := range [][]string{nil, {"relative"}} {
		c.Args = dirs
		if _, err := normalize(c); err == nil {
			t.Fatalf("accepted invalid roots %v", dirs)
		}
	}
	c.Args = []string{filepath.Join(dir, "missing")}
	if err := validateFilesystemDirs(c); err == nil {
		t.Fatal("accepted missing directory")
	}
	if err := validateSecrets(normalized, Secrets{Env: map[string]string{"NODE_OPTIONS": "--inspect"}}); err == nil {
		t.Fatal("accepted inherited config secrets")
	}
	s, _ := testService(t)
	view, err := s.SaveServer(ServerInput{Config: normalized})
	if err != nil {
		t.Fatal(err)
	}
	restored := newService(s.path, memorySecrets{})
	views, err := restored.ListServers()
	if err != nil || len(views) != 1 || views[0].Config.Args[0] != dir || views[0].Config.ID != view.Config.ID {
		t.Fatalf("restore: %+v %v", views, err)
	}
}

func TestBundledFilesystem(t *testing.T) {
	if os.Getenv("ITUOKE_TEST_FILESYSTEM") != "1" {
		t.Skip("set ITUOKE_TEST_FILESYSTEM=1 after staging official runtime")
	}
	t.Chdir(filepath.Join("..", ".."))
	t.Setenv("PATH", t.TempDir()) // No client-installed node/npm may be required.
	t.Setenv("NODE_OPTIONS", "--invalid-option-from-parent")
	s, _ := testService(t)
	view, err := s.AddFilesystem()
	if err != nil {
		t.Fatal(err)
	}
	second, err := s.AddFilesystem()
	if err != nil || second.Config.ID != view.Config.ID {
		t.Fatal("duplicate preset", err)
	}
	// Relocate the root to exercise spaces and Unicode paths.
	dir := filepath.Join(filepath.Dir(s.path), "产品资料 with spaces")
	if err := os.MkdirAll(dir, 0700); err != nil {
		t.Fatal(err)
	}
	view.Config.Args = []string{dir}
	if _, err := s.SaveServer(ServerInput{Config: view.Config}); err != nil {
		t.Fatal(err)
	}
	result := s.TestServer(context.Background(), ServerInput{Config: view.Config})
	if !result.OK {
		t.Fatalf("discovery failed: %s", result.Message)
	}
	names := map[string]bool{}
	for _, tool := range result.Tools {
		names[tool.Name] = true
	}
	for _, tool := range []string{"read_text_file", "write_file", "search_files", "move_file", "list_allowed_directories"} {
		if !names[tool] {
			t.Fatalf("missing tool %s", tool)
		}
	}
	result = s.TestFilesystem(context.Background(), view.Config.ID)
	if !result.OK {
		t.Fatal(result.Message)
	}
	entries, err := os.ReadDir(dir)
	if err != nil || len(entries) != 0 {
		t.Fatalf("probe files remain: %v %v", entries, err)
	}
	raw, _ := os.ReadFile(s.path)
	if strings.Contains(string(raw), "node.exe") || strings.Contains(string(raw), "node_modules") {
		t.Fatal("machine-specific launch paths persisted")
	}
	t.Logf("official Filesystem MCP: %d tools; %s", len(result.Tools), result.Message)
}