package secretstore

import (
	"errors"
	"path/filepath"
	"strings"
	"testing"

	"forge.lclr.dev/AI/mcp-framework/manifest"
)

func TestDescribeRuntimeReturnsDeclaredAndEffectivePolicies(t *testing.T) {
	desc, err := DescribeRuntime(DescribeRuntimeOptions{
		ServiceName: "graylog-mcp",
		LookupEnv:   func(string) (string, bool) { return "", false },
		ExecutableResolver: func() (string, error) {
			return filepath.Join(string(filepath.Separator), "opt", "graylog-mcp", "bin", "graylog-mcp"), nil
		},
		ManifestLoader: func(startDir string) (manifest.File, string, error) {
			return manifest.File{
				SecretStore: manifest.SecretStore{BackendPolicy: string(BackendEnvOnly)},
			}, filepath.Join(startDir, manifest.DefaultFile), nil
		},
	})
	if err != nil {
		t.Fatalf("DescribeRuntime returned error: %v", err)
	}

	if desc.ManifestSource == "" {
		t.Fatal("ManifestSource should not be empty")
	}
	if desc.DeclaredPolicy != BackendEnvOnly {
		t.Fatalf("DeclaredPolicy = %q, want %q", desc.DeclaredPolicy, BackendEnvOnly)
	}
	if desc.EffectivePolicy != BackendEnvOnly {
		t.Fatalf("EffectivePolicy = %q, want %q", desc.EffectivePolicy, BackendEnvOnly)
	}
	if desc.DisplayName == "" {
		t.Fatal("DisplayName should not be empty")
	}
	if !desc.Ready {
		t.Fatalf("Ready = %v, want true", desc.Ready)
	}
	if desc.ReadyError != nil {
		t.Fatalf("ReadyError = %v, want nil", desc.ReadyError)
	}
}

func TestDescribeRuntimeDoesNotProbeBitwardenByDefault(t *testing.T) {
	withBitwardenRunner(t, func(command string, stdin []byte, args ...string) ([]byte, error) {
		return nil, errors.New("unexpected bitwarden invocation")
	})

	desc, err := DescribeRuntime(DescribeRuntimeOptions{
		ServiceName: "graylog-mcp",
		Shell:       "fish",
		ExecutableResolver: func() (string, error) {
			return filepath.Join(string(filepath.Separator), "opt", "graylog-mcp", "bin", "graylog-mcp"), nil
		},
		ManifestLoader: func(startDir string) (manifest.File, string, error) {
			return manifest.File{
				SecretStore: manifest.SecretStore{BackendPolicy: string(BackendBitwardenCLI)},
			}, filepath.Join(startDir, manifest.DefaultFile), nil
		},
	})
	if err != nil {
		t.Fatalf("DescribeRuntime returned error: %v", err)
	}

	if desc.DeclaredPolicy != BackendBitwardenCLI {
		t.Fatalf("DeclaredPolicy = %q, want %q", desc.DeclaredPolicy, BackendBitwardenCLI)
	}
	if desc.EffectivePolicy != BackendBitwardenCLI {
		t.Fatalf("EffectivePolicy = %q, want %q", desc.EffectivePolicy, BackendBitwardenCLI)
	}
	if !desc.Ready {
		t.Fatalf("Ready = %v, want true without readiness probe", desc.Ready)
	}
	if desc.ReadyError != nil {
		t.Fatalf("ReadyError = %v, want nil without readiness probe", desc.ReadyError)
	}
}

func TestPreflightFromManifestReturnsTypedStatusAndRemediation(t *testing.T) {
	withBitwardenRunner(t, func(command string, stdin []byte, args ...string) ([]byte, error) {
		switch {
		case len(args) == 1 && args[0] == "--version":
			return []byte("2026.1.0\n"), nil
		case len(args) == 1 && args[0] == "status":
			return []byte(`{"status":"locked"}`), nil
		default:
			return nil, errors.New("unexpected bitwarden invocation")
		}
	})

	report, err := PreflightFromManifest(PreflightOptions{
		ServiceName: "graylog-mcp",
		Shell:       "fish",
		ExecutableResolver: func() (string, error) {
			return filepath.Join(string(filepath.Separator), "opt", "graylog-mcp", "bin", "graylog-mcp"), nil
		},
		ManifestLoader: func(startDir string) (manifest.File, string, error) {
			return manifest.File{
				SecretStore: manifest.SecretStore{BackendPolicy: string(BackendBitwardenCLI)},
			}, filepath.Join(startDir, manifest.DefaultFile), nil
		},
	})
	if err != nil {
		t.Fatalf("PreflightFromManifest returned error: %v", err)
	}

	if report.Status != PreflightStatusFail {
		t.Fatalf("Status = %q, want %q", report.Status, PreflightStatusFail)
	}
	if !strings.Contains(strings.ToLower(report.Summary), "locked") {
		t.Fatalf("Summary = %q, want lock hint", report.Summary)
	}
	if !strings.Contains(report.Remediation, "set -x BW_SESSION (bw unlock --raw)") {
		t.Fatalf("Remediation = %q, want fish remediation", report.Remediation)
	}
}

func TestFormatBackendStatusIncludesDeclaredEffectiveAndReadiness(t *testing.T) {
	line := FormatBackendStatus(RuntimeDescription{
		ManifestSource:  "/opt/graylog-mcp/mcp.toml",
		DeclaredPolicy:  BackendBitwardenCLI,
		EffectivePolicy: BackendBitwardenCLI,
		DisplayName:     "Bitwarden CLI",
		Ready:           false,
		ReadyError:      ErrBWLocked,
	})

	for _, needle := range []string{
		"declared=bitwarden-cli",
		"effective=bitwarden-cli",
		"display=Bitwarden CLI",
		"ready=false",
		"source=/opt/graylog-mcp/mcp.toml",
		"error=",
	} {
		if !strings.Contains(line, needle) {
			t.Fatalf("line = %q, want substring %q", line, needle)
		}
	}
}