/* SPDX-License-Identifier: GPL-2.0+ */

/*

 * Copyright (C) 2013 Red Hat, Inc.

 */

/**

 * SECTION:nmt-address-list

 * @short_description: An editable list of IP addresses or hostnames

 *

 * #NmtAddressList is a subclass of #NmtWidgetList that contains

 * entries displaying IP addresses, address/prefix strings, or

 * hostnames. This is designed for binding its #NmtAddressList:strings

 * property to an appropriate #NMSettingIP4Config or

 * #NMSettingIP6Config property via one of the nm-editor-bindings

 * functions.

 */

#include "nm-default.h"

#include "nmt-address-list.h"

#include <arpa/inet.h>

#include <netinet/in.h>

#include <stdlib.h>

#include "nmt-ip-entry.h"

G_DEFINE_TYPE(NmtAddressList, nmt_address_list, NMT_TYPE_WIDGET_LIST)

#define NMT_ADDRESS_LIST_GET_PRIVATE(o) \

    (G_TYPE_INSTANCE_GET_PRIVATE((o), NMT_TYPE_ADDRESS_LIST, NmtAddressListPrivate))

typedef struct {

    NmtAddressListType list_type;

    char **            strings;

} NmtAddressListPrivate;

enum {

    PROP_0,

    PROP_LIST_TYPE,

    PROP_STRINGS,

    LAST_PROP

};

/**

 * NmtAddressListType:

 * @NMT_ADDRESS_LIST_IP4_WITH_PREFIX: IPv4 address/prefix strings

 * @NMT_ADDRESS_LIST_IP4: IPv4 addresses

 * @NMT_ADDRESS_LIST_IP6_WITH_PREFIX: IPv6 address/prefix strings

 * @NMT_ADDRESS_LIST_IP6: IPv6 addresses

 * @NMT_ADDRESS_LIST_HOSTNAME: hostnames

 *

 * The type of address in an #NmtAddressList

 */

/**

 * nmt_address_list_new:

 * @list_type: the type of address the list will contain

 *

 * Creates a new #NmtAddressList

 *

 * Returns: a new #NmtAddressList

 */

NmtNewtWidget *

nmt_address_list_new(NmtAddressListType list_type)

{

    return g_object_new(NMT_TYPE_ADDRESS_LIST, "list-type", list_type, NULL);

}

static void

nmt_address_list_init(NmtAddressList *list)

{}

static gboolean

strings_transform_to_entry(GBinding *    binding,

                           const GValue *source_value,

                           GValue *      target_value,

                           gpointer      user_data)

{

    int    n = GPOINTER_TO_INT(user_data);

    char **strings;

    strings = g_value_get_boxed(source_value);

    if (n >= g_strv_length(strings))

        return FALSE;

    g_value_set_string(target_value, strings[n]);

    return TRUE;

}

static gboolean

strings_transform_from_entry(GBinding *    binding,

                             const GValue *source_value,

                             GValue *      target_value,

                             gpointer      user_data)

{

    NmtAddressList *       list = NMT_ADDRESS_LIST(g_binding_get_source(binding));

    NmtAddressListPrivate *priv = NMT_ADDRESS_LIST_GET_PRIVATE(list);

    int                    n    = GPOINTER_TO_INT(user_data);

    if (n >= g_strv_length(priv->strings))

        return FALSE;

    g_free(priv->strings[n]);

    priv->strings[n] = g_value_dup_string(source_value);

    g_value_set_boxed(target_value, priv->strings);

    return TRUE;

}

static gboolean

hostname_filter(NmtNewtEntry *entry, const char *text, int ch, int position, gpointer user_data)

{

    return g_ascii_isalnum(ch) || ch == '.' || ch == '-';

}

static NmtNewtWidget *

nmt_address_list_create_widget(NmtWidgetList *list, int num)

{

    NmtAddressListPrivate *priv = NMT_ADDRESS_LIST_GET_PRIVATE(list);

    NmtNewtWidget *        entry;

    if (priv->list_type == NMT_ADDRESS_LIST_IP4_WITH_PREFIX)

        entry = nmt_ip_entry_new(25, AF_INET, TRUE, FALSE);

    else if (priv->list_type == NMT_ADDRESS_LIST_IP4)

        entry = nmt_ip_entry_new(25, AF_INET, FALSE, FALSE);

    else if (priv->list_type == NMT_ADDRESS_LIST_IP6_WITH_PREFIX)

        entry = nmt_ip_entry_new(25, AF_INET6, TRUE, FALSE);

    else if (priv->list_type == NMT_ADDRESS_LIST_IP6)

        entry = nmt_ip_entry_new(25, AF_INET6, FALSE, FALSE);

    else if (priv->list_type == NMT_ADDRESS_LIST_HOSTNAME) {

        entry = nmt_newt_entry_new(25, NMT_NEWT_ENTRY_NONEMPTY);

        nmt_newt_entry_set_filter(NMT_NEWT_ENTRY(entry), hostname_filter, list);

    } else

        g_assert_not_reached();

    g_object_bind_property_full(list,

                                "strings",

                                entry,

                                "text",

                                G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE,

                                strings_transform_to_entry,

                                strings_transform_from_entry,

                                GINT_TO_POINTER(num),

                                NULL);

    return entry;

}

static void

nmt_address_list_add_clicked(NmtWidgetList *list)

{

    NmtAddressListPrivate *priv = NMT_ADDRESS_LIST_GET_PRIVATE(list);

    int                    len;

    len                    = priv->strings ? g_strv_length(priv->strings) : 0;

    priv->strings          = g_renew(char *, priv->strings, len + 2);

    priv->strings[len]     = g_strdup("");

    priv->strings[len + 1] = NULL;

    nmt_widget_list_set_length(list, len + 1);

    g_object_notify(G_OBJECT(list), "strings");

}

static void

nmt_address_list_remove_clicked(NmtWidgetList *list, int num)

{

    NmtAddressListPrivate *priv = NMT_ADDRESS_LIST_GET_PRIVATE(list);

    int                    len;

    len = g_strv_length(priv->strings);

    g_free(priv->strings[num]);

    memmove(priv->strings + num, priv->strings + num + 1, (len - num) * sizeof(char *));

    nmt_widget_list_set_length(list, len - 1);

    g_object_notify(G_OBJECT(list), "strings");

}

static void

nmt_address_list_set_property(GObject *     object,

                              guint         prop_id,

                              const GValue *value,

                              GParamSpec *  pspec)

{

    NmtAddressListPrivate *priv = NMT_ADDRESS_LIST_GET_PRIVATE(object);

    switch (prop_id) {

    case PROP_LIST_TYPE:

        priv->list_type = g_value_get_uint(value);

        break;

    case PROP_STRINGS:

        g_strfreev(priv->strings);

        priv->strings = g_value_dup_boxed(value);

        if (!priv->strings)

            priv->strings = g_new0(char *, 1);

        nmt_widget_list_set_length(NMT_WIDGET_LIST(object), g_strv_length(priv->strings));

        break;

    default:

        G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);

        break;

    }

}

static void

nmt_address_list_get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)

{

    NmtAddressListPrivate *priv = NMT_ADDRESS_LIST_GET_PRIVATE(object);

    switch (prop_id) {

    case PROP_LIST_TYPE:

        g_value_set_uint(value, priv->list_type);

        break;

    case PROP_STRINGS:

        g_value_set_boxed(value, priv->strings);

        break;

    default:

        G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);

        break;

    }

}

static void

nmt_address_list_class_init(NmtAddressListClass *list_class)

{

    GObjectClass *      object_class      = G_OBJECT_CLASS(list_class);

    NmtWidgetListClass *widget_list_class = NMT_WIDGET_LIST_CLASS(list_class);

    g_type_class_add_private(list_class, sizeof(NmtAddressListPrivate));

    /* virtual methods */

    object_class->set_property = nmt_address_list_set_property;

    object_class->get_property = nmt_address_list_get_property;

    widget_list_class->create_widget  = nmt_address_list_create_widget;

    widget_list_class->add_clicked    = nmt_address_list_add_clicked;

    widget_list_class->remove_clicked = nmt_address_list_remove_clicked;

    /**

     * NmtAddressList:list-type:

     *

     * The type of address the list holds.

     */

    g_object_class_install_property(

        object_class,

        PROP_LIST_TYPE,

        g_param_spec_uint("list-type",

                          "",

                          "",

                          0,

                          G_MAXUINT,

                          0,

                          G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));

    /**

     * NmtAddressList:strings:

     *

     * The strings in the list's entries.

     */

    g_object_class_install_property(object_class,

                                    PROP_STRINGS,

                                    g_param_spec_boxed("strings",

                                                       "",

                                                       "",

                                                       G_TYPE_STRV,

                                                       G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));

}