/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2013 Red Hat, Inc.
 */

/**
 * SECTION:nmt-password-fields
 * @short_description: Widgets for password-related data
 *
 * #NmtPasswordFields provides an entry to type a password into, followed
 * optionally by an "Ask for this password every time" checkbox and/or a
 * "Show password" checkbox that toggles whether the password is visible.
 */

#include "libnm-client-aux-extern/nm-default-client.h"

#include "nmt-password-fields.h"

G_DEFINE_TYPE(NmtPasswordFields, nmt_password_fields, NMT_TYPE_NEWT_GRID)

#define NMT_PASSWORD_FIELDS_GET_PRIVATE(o) \
    (G_TYPE_INSTANCE_GET_PRIVATE((o), NMT_TYPE_PASSWORD_FIELDS, NmtPasswordFieldsPrivate))

typedef struct {
    NmtPasswordFieldsExtras extras;

    NmtNewtEntry    *entry;
    NmtNewtPopup    *secret_flags;
    NmtNewtCheckbox *show_password;

    char *init_password;

} NmtPasswordFieldsPrivate;

enum {
    PROP_0,
    PROP_WIDTH,
    PROP_EXTRAS,
    PROP_PASSWORD,
    PROP_SECRET_FLAGS,
    PROP_SHOW_PASSWORD,

    LAST_PROP
};

/**
 * NmtPasswordFieldsExtras:
 * @NMT_PASSWORD_FIELDS_SHOW_SECRET_FLAGS: show the secret flags popup
 * @NMT_PASSWORD_FIELDS_SHOW_PASSWORD: show a "Show password" checkbox
 * @NMT_PASSWORD_FIELDS_NOT_EMPTY: return NULL instead of empty string
 *
 * Extra widgets to include in an #NmtPasswordFields
 */

/**
 * nmt_password_fields_new:
 * @width: width in characters of the password entry
 * @extras: extra widgets to show
 *
 * Creates a new #NmtPasswordFields
 *
 * Returns: a new #NmtPasswordFields
 */
NmtNewtWidget *
nmt_password_fields_new(int width, NmtPasswordFieldsExtras extras)
{
    return g_object_new(NMT_TYPE_PASSWORD_FIELDS, "width", width, "extras", extras, NULL);
}

static void
nmt_password_fields_set_password(NmtPasswordFields *fields, const char *password)
{
    NmtPasswordFieldsPrivate *priv = NMT_PASSWORD_FIELDS_GET_PRIVATE(fields);

    if (!g_strcmp0(password, nmt_newt_entry_get_text(priv->entry)))
        return;

    nmt_newt_entry_set_text(priv->entry, password);
    g_object_notify(G_OBJECT(fields), "password");
}

static const char *
nmt_password_fields_get_password(NmtPasswordFields *fields)
{
    NmtPasswordFieldsPrivate *priv = NMT_PASSWORD_FIELDS_GET_PRIVATE(fields);
    const char               *text;

    text = nmt_newt_entry_get_text(priv->entry);
    if (priv->extras & NMT_PASSWORD_FIELDS_NOT_EMPTY)
        return nm_str_not_empty(text);

    return text;
}

static void
show_password_changed(GObject *object, GParamSpec *pspec, gpointer fields)
{
    g_object_notify(fields, "show-password");
}

static void
secret_flags_changed(GObject *object, GParamSpec *pspec, gpointer fields)
{
    g_object_notify(fields, "secret-flags");
}

static guint
secret_flags_from_popup_idx(guint idx)
{
    switch (idx) {
    case 1:
        return NM_SETTING_SECRET_FLAG_AGENT_OWNED;
    case 2:
        return NM_SETTING_SECRET_FLAG_NOT_SAVED;
    default:
    case 0:
        return NM_SETTING_SECRET_FLAG_NONE;
    }
}

static guint
secret_flags_to_popup_idx(guint flags)
{
    if (flags & NM_SETTING_SECRET_FLAG_AGENT_OWNED)
        return 1;
    if (flags & NM_SETTING_SECRET_FLAG_NOT_SAVED)
        return 2;
    return 0;
}

static void
nmt_password_fields_init(NmtPasswordFields *fields)
{
    NmtPasswordFieldsPrivate *priv      = NMT_PASSWORD_FIELDS_GET_PRIVATE(fields);
    NmtNewtPopupEntry         entries[] = {
        {_("Store password for all users"), NULL},
        {_("Store password only for this user"), NULL},
        {_("Ask password every time"), NULL},
        {},
    };

    priv->entry         = NMT_NEWT_ENTRY(nmt_newt_entry_new(-1, 0));
    priv->secret_flags  = NMT_NEWT_POPUP(nmt_newt_popup_new(entries));
    priv->show_password = NMT_NEWT_CHECKBOX(nmt_newt_checkbox_new(_("Show password")));
}

static void
nmt_password_fields_constructed(GObject *object)
{
    NmtPasswordFieldsPrivate *priv = NMT_PASSWORD_FIELDS_GET_PRIVATE(object);
    NmtNewtGrid              *grid = NMT_NEWT_GRID(object);
    guint                     row  = 0;

    nmt_newt_grid_add(grid, NMT_NEWT_WIDGET(priv->entry), 0, row++);

    if (priv->extras & NMT_PASSWORD_FIELDS_SHOW_PASSWORD) {
        nmt_newt_grid_add(grid, NMT_NEWT_WIDGET(priv->show_password), 0, row++);
        g_signal_connect(priv->show_password,
                         "notify::active",
                         G_CALLBACK(show_password_changed),
                         object);
        g_object_bind_property(priv->show_password,
                               "active",
                               priv->entry,
                               "password",
                               G_BINDING_INVERT_BOOLEAN | G_BINDING_SYNC_CREATE);
    } else
        g_clear_object(&priv->show_password);

    if (priv->extras & NMT_PASSWORD_FIELDS_SHOW_SECRET_FLAGS) {
        nmt_newt_grid_add(grid, NMT_NEWT_WIDGET(priv->secret_flags), 0, row++);
        g_signal_connect(priv->secret_flags,
                         "notify::active-id",
                         G_CALLBACK(secret_flags_changed),
                         object);
    } else
        g_clear_object(&priv->secret_flags);

    g_object_bind_property(priv->entry,
                           "text",
                           object,
                           "password",
                           G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);

    G_OBJECT_CLASS(nmt_password_fields_parent_class)->constructed(object);
}

static void
nmt_password_fields_finalize(GObject *object)
{
    NmtPasswordFieldsPrivate *priv = NMT_PASSWORD_FIELDS_GET_PRIVATE(object);

    if (priv->secret_flags) {
        g_signal_handlers_disconnect_by_func(priv->secret_flags,
                                             G_CALLBACK(secret_flags_changed),
                                             object);
    }
    if (priv->show_password) {
        g_signal_handlers_disconnect_by_func(priv->show_password,
                                             G_CALLBACK(show_password_changed),
                                             object);
    }

    G_OBJECT_CLASS(nmt_password_fields_parent_class)->finalize(object);
}

static void
nmt_password_fields_set_property(GObject      *object,
                                 guint         prop_id,
                                 const GValue *value,
                                 GParamSpec   *pspec)
{
    NmtPasswordFields        *fields = NMT_PASSWORD_FIELDS(object);
    NmtPasswordFieldsPrivate *priv   = NMT_PASSWORD_FIELDS_GET_PRIVATE(fields);

    switch (prop_id) {
    case PROP_WIDTH:
        nmt_newt_entry_set_width(priv->entry, g_value_get_int(value));
        break;
    case PROP_EXTRAS:
        priv->extras = g_value_get_uint(value);
        nmt_newt_widget_needs_rebuild(NMT_NEWT_WIDGET(fields));
        break;
    case PROP_PASSWORD:
        nmt_password_fields_set_password(fields, g_value_get_string(value));
        break;
    case PROP_SECRET_FLAGS:
        nmt_newt_popup_set_active(priv->secret_flags,
                                  secret_flags_to_popup_idx(g_value_get_uint(value)));
        break;
    case PROP_SHOW_PASSWORD:
        nmt_newt_checkbox_set_active(priv->show_password, g_value_get_boolean(value));
        break;
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
        break;
    }
}

static void
nmt_password_fields_get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
    NmtPasswordFields        *entry = NMT_PASSWORD_FIELDS(object);
    NmtPasswordFieldsPrivate *priv  = NMT_PASSWORD_FIELDS_GET_PRIVATE(entry);

    switch (prop_id) {
    case PROP_WIDTH:
        g_value_set_int(value, nmt_newt_entry_get_width(priv->entry));
        break;
    case PROP_EXTRAS:
        g_value_set_uint(value, priv->extras);
        break;
    case PROP_PASSWORD:
        g_value_set_string(value, nmt_password_fields_get_password(entry));
        break;
    case PROP_SECRET_FLAGS:
        g_value_set_uint(
            value,
            secret_flags_from_popup_idx(nmt_newt_popup_get_active(priv->secret_flags)));
        break;
    case PROP_SHOW_PASSWORD:
        g_value_set_boolean(value, nmt_newt_checkbox_get_active(priv->show_password));
        break;
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
        break;
    }
}

static void
nmt_password_fields_class_init(NmtPasswordFieldsClass *entry_class)
{
    GObjectClass *object_class = G_OBJECT_CLASS(entry_class);

    g_type_class_add_private(entry_class, sizeof(NmtPasswordFieldsPrivate));

    /* virtual methods */
    object_class->constructed  = nmt_password_fields_constructed;
    object_class->set_property = nmt_password_fields_set_property;
    object_class->get_property = nmt_password_fields_get_property;
    object_class->finalize     = nmt_password_fields_finalize;

    /**
     * NmtPasswordFields:width:
     *
     * The width in characters of the password entry
     */
    g_object_class_install_property(
        object_class,
        PROP_WIDTH,
        g_param_spec_int("width", "", "", -1, 80, -1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
    /**
     * NmtPasswordFields:extras:
     *
     * The extra widgets to show
     */
    g_object_class_install_property(
        object_class,
        PROP_EXTRAS,
        g_param_spec_uint("extras",
                          "",
                          "",
                          0,
                          0xFFFF,
                          0,
                          G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
    /**
     * NmtPasswordFields:password:
     *
     * The entered password.
     */
    g_object_class_install_property(
        object_class,
        PROP_PASSWORD,
        g_param_spec_string("password", "", "", NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
    /**
     * NmtPasswordFields:secret-flags:
     *
     * The current state of the "Secret flags" popup.
     */
    g_object_class_install_property(object_class,
                                    PROP_SECRET_FLAGS,
                                    g_param_spec_uint("secret-flags",
                                                      "",
                                                      "",
                                                      0,
                                                      G_MAXUINT,
                                                      0,
                                                      G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
    /**
     * NmtPasswordFields:show-password:
     *
     * The current state of the "Show password" checkbox.
     */
    g_object_class_install_property(
        object_class,
        PROP_SHOW_PASSWORD,
        g_param_spec_boolean("show-password",
                             "",
                             "",
                             FALSE,
                             G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}