// Package miot provides white-box tests for miot_network.go network monitor.
package miot

import (
	"testing"
	"time"
)

func TestInterfaceStatus_String(t *testing.T) {
	tests := []struct {
		status InterfaceStatus
		want   string
	}{
		{InterfaceAdd, "add"},
		{InterfaceUpdate, "update"},
		{InterfaceRemove, "remove"},
		{InterfaceStatus(99), "unknown"},
	}
	for _, tt := range tests {
		t.Run(tt.want, func(t *testing.T) {
			if got := tt.status.String(); got != tt.want {
				t.Errorf("InterfaceStatus(%d).String() = %q, want %q", tt.status, got, tt.want)
			}
		})
	}
}

func TestNetworkInfo_String(t *testing.T) {
	info := &NetworkInfo{
		Name: "eth0", IP: "192.168.1.100",
		Netmask: "255.255.255.0", NetSeg: "192.168.1.0",
	}
	s := info.String()
	if s != "eth0: 192.168.1.100/255.255.255.0 (192.168.1.0)" {
		t.Errorf("NetworkInfo.String() = %q", s)
	}
}

func TestNewMIoTNetwork_Defaults(t *testing.T) {
	n := NewMIoTNetwork(nil, nil, 0)
	if n == nil {
		t.Fatal("NewMIoTNetwork returned nil")
	}
}

func TestNewMIoTNetwork_CustomInterval(t *testing.T) {
	n := NewMIoTNetwork(nil, nil, 15*time.Second)
	if n == nil {
		t.Fatal("NewMIoTNetwork returned nil")
	}
}

func TestNewMIoTNetwork_CustomAddresses(t *testing.T) {
	n := NewMIoTNetwork([]string{"1.1.1.1", "2.2.2.2"}, []string{"http://example.com"}, 60*time.Second)
	if n == nil {
		t.Fatal("NewMIoTNetwork returned nil")
	}
}

func TestGetNetworkStatus_InitiallyFalse(t *testing.T) {
	n := NewMIoTNetwork(nil, nil, 0)
	if n.GetNetworkStatus() {
		t.Error("network status should be false initially")
	}
}

func TestGetNetworkInfo_InitiallyEmpty(t *testing.T) {
	n := NewMIoTNetwork(nil, nil, 0)
	info := n.GetNetworkInfo()
	if info == nil {
		t.Error("GetNetworkInfo should not return nil")
	}
}

func TestSubUnsubNetworkStatus(t *testing.T) {
	n := NewMIoTNetwork(nil, nil, 0)
	called := false
	n.SubNetworkStatus("test_key", func(status bool) { called = true })
	n.UnsubNetworkStatus("test_key")
	_ = called
}

func TestSubUnsubNetworkInfo(t *testing.T) {
	n := NewMIoTNetwork(nil, nil, 0)
	called := false
	n.SubNetworkInfo("test_key", func(status InterfaceStatus, info *NetworkInfo) { called = true })
	n.UnsubNetworkInfo("test_key")
	_ = called
}

func TestUpdateAddrList(t *testing.T) {
	n := NewMIoTNetwork(nil, nil, 0)
	n.UpdateAddrList([]string{"1.1.1.1"}, []string{"http://test.com"})
}

func TestUpdateAddrList_Nil(t *testing.T) {
	n := NewMIoTNetwork(nil, nil, 0)
	n.UpdateAddrList(nil, nil)
}

func TestNetworkInfo_Fields(t *testing.T) {
	info := &NetworkInfo{Name: "wlan0", IP: "10.0.0.1", Netmask: "255.0.0.0", NetSeg: "10.0.0.0"}
	if info.Name != "wlan0" {
		t.Errorf("Name = %q", info.Name)
	}
}