/*
 * ============================================================================
 * Projekt.....: rs2322tcp
 * Datei.......: internal/client/runtime_test.go
 * Copyright (C) 2026 Dieter Lang
 *
 * SPDX-License-Identifier: GPL-3.0-or-later
 *
 * Beschreibung:
 * Tests für die clientseitige Runtime.
 *
 * Die Tests prüfen die Initialisierung der Runtime und den grundlegenden
 * Lebenszyklus ohne einen externen rs2322tcp-Server vorauszusetzen.
 * ============================================================================
 */
package client

import (
	"strings"
	"testing"

	"git.lang-dieter.de/rs2322tcp/internal/config"
)

///////////////////////////////////////////////////////////////////////////////
// Tests
///////////////////////////////////////////////////////////////////////////////

func TestNewRuntimeNilClient(t *testing.T) {
	manager := NewVirtualPortManager(
		config.VirtualPortRangeConfig{
			First: 100,
			Last:  199,
		},
	)

	_, err := NewRuntime(nil, manager)
	if err == nil {
		t.Fatal("expected error for nil client")
	}

	if !strings.Contains(err.Error(), "client is nil") {
		t.Fatalf("unexpected error: %v", err)
	}
}

func TestNewRuntimeNilManager(t *testing.T) {
	client := newTestClient(t)

	_, err := NewRuntime(client, nil)
	if err == nil {
		t.Fatal("expected error for nil manager")
	}

	if !strings.Contains(err.Error(), "virtual port manager is nil") {
		t.Fatalf("unexpected error: %v", err)
	}
}

func TestRuntimeRunWithoutVirtualPorts(t *testing.T) {
	client := newTestClient(t)

	manager := NewVirtualPortManager(
		config.VirtualPortRangeConfig{
			First: 100,
			Last:  199,
		},
	)

	runtime, err := NewRuntime(client, manager)
	if err != nil {
		t.Fatalf("NewRuntime: %v", err)
	}

	cfg := config.ClientConfig{
		VirtualPorts: nil,
	}

	if err := runtime.Run(cfg); err != nil {
		t.Fatalf("Run: %v", err)
	}
}