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

/**
 * SECTION:nmt-editor-section:
 * @short_description: A section of the #NmtEditor
 *
 * #NmtEditorSection is the abstract base class for #NmtEditor sections.
 */

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

#include "nmt-editor-section.h"
#include "libnmt-newt/nmt-newt-toggle-button.h"

G_DEFINE_TYPE(NmtEditorSection, nmt_editor_section, NMT_TYPE_NEWT_SECTION)

#define NMT_EDITOR_SECTION_GET_PRIVATE(o) \
    (G_TYPE_INSTANCE_GET_PRIVATE((o), NMT_TYPE_EDITOR_SECTION, NmtEditorSectionPrivate))

typedef struct {
    NmtEditorGrid *header, *body;
    char          *title;
    NmtNewtWidget *header_widget;
    NmtNewtWidget *toggle;

    gboolean show_by_default;
} NmtEditorSectionPrivate;

enum {
    PROP_0,

    PROP_TITLE,
    PROP_SHOW_BY_DEFAULT,
    PROP_HEADER_WIDGET,

    LAST_PROP
};

/**
 * nmt_editor_section_new:
 * @title: the section title
 * @header_widget: (allow-none): the widget to show next to the title
 * @show_by_default: whether the section should be open by default
 *
 * Creates a new #NmtEditorSection.
 *
 * Returns: a new #NmtEditorSection
 */
NmtEditorSection *
nmt_editor_section_new(const char *title, NmtNewtWidget *header_widget, gboolean show_by_default)
{
    return g_object_new(NMT_TYPE_EDITOR_SECTION,
                        "title",
                        title,
                        "header-widget",
                        header_widget,
                        "show-by-default",
                        show_by_default,
                        NULL);
}

static void
rebuild_header(NmtEditorSection *section)
{
    NmtEditorSectionPrivate *priv = NMT_EDITOR_SECTION_GET_PRIVATE(section);

    /* Removing any widget in an NmtEditorGrid removes its whole row, so we can
     * remove the existing title/widget/toggle by asking to remove toggle.
     */
    nmt_newt_container_remove(NMT_NEWT_CONTAINER(priv->header), priv->toggle);

    nmt_editor_grid_append(priv->header, priv->title, priv->header_widget, priv->toggle);
    nmt_editor_grid_set_row_flags(priv->header,
                                  priv->toggle,
                                  NMT_EDITOR_GRID_ROW_LABEL_ALIGN_LEFT
                                      | NMT_EDITOR_GRID_ROW_EXTRA_ALIGN_RIGHT);
}

static void
nmt_editor_section_init(NmtEditorSection *section)
{
    NmtEditorSectionPrivate *priv = NMT_EDITOR_SECTION_GET_PRIVATE(section);

    priv->header = NMT_EDITOR_GRID(nmt_editor_grid_new());
    priv->body   = NMT_EDITOR_GRID(nmt_editor_grid_new());
    priv->toggle = nmt_newt_toggle_button_new(_("Hide"), _("Show"));
    g_object_ref_sink(priv->toggle);

    nmt_newt_section_set_header(NMT_NEWT_SECTION(section), NMT_NEWT_WIDGET(priv->header));
    nmt_newt_section_set_body(NMT_NEWT_SECTION(section), NMT_NEWT_WIDGET(priv->body));

    g_object_bind_property(priv->toggle, "active", section, "open", G_BINDING_SYNC_CREATE);
}

static void
nmt_editor_section_finalize(GObject *object)
{
    NmtEditorSectionPrivate *priv = NMT_EDITOR_SECTION_GET_PRIVATE(object);

    g_free(priv->title);
    g_clear_object(&priv->header_widget);
    g_clear_object(&priv->toggle);

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

/**
 * nmt_editor_section_get_header_widget:
 * @section: the #NmtEditorSection
 *
 * Gets the section's header widget.
 *
 * Returns: the section's header widget.
 */
NmtNewtWidget *
nmt_editor_section_get_header_widget(NmtEditorSection *section)
{
    NmtEditorSectionPrivate *priv = NMT_EDITOR_SECTION_GET_PRIVATE(section);

    return priv->header_widget;
}

/**
 * nmt_editor_section_get_body:
 * @section: the #NmtEditorSection
 *
 * Gets the section's body grid, so that you can add things to it.
 *
 * Returns: the #NmtEditorGrid used for the section body
 */
NmtEditorGrid *
nmt_editor_section_get_body(NmtEditorSection *section)
{
    NmtEditorSectionPrivate *priv = NMT_EDITOR_SECTION_GET_PRIVATE(section);

    return priv->body;
}

/**
 * nmt_editor_section_get_title:
 * @section: the #NmtEditorSection
 *
 * Gets the section's title.
 *
 * Returns: the section's title
 */
const char *
nmt_editor_section_get_title(NmtEditorSection *section)
{
    NmtEditorSectionPrivate *priv = NMT_EDITOR_SECTION_GET_PRIVATE(section);

    return priv->title;
}

static void
nmt_editor_section_set_property(GObject      *object,
                                guint         prop_id,
                                const GValue *value,
                                GParamSpec   *pspec)
{
    NmtEditorSection        *section = NMT_EDITOR_SECTION(object);
    NmtEditorSectionPrivate *priv    = NMT_EDITOR_SECTION_GET_PRIVATE(section);

    switch (prop_id) {
    case PROP_TITLE:
        priv->title = g_value_dup_string(value);
        rebuild_header(section);
        break;
    case PROP_SHOW_BY_DEFAULT:
        priv->show_by_default = g_value_get_boolean(value);
        nmt_newt_toggle_button_set_active(NMT_NEWT_TOGGLE_BUTTON(priv->toggle),
                                          priv->show_by_default);
        break;
    case PROP_HEADER_WIDGET:
        priv->header_widget = g_value_get_object(value);
        if (priv->header_widget)
            g_object_ref_sink(priv->header_widget);
        rebuild_header(section);
        break;
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
        break;
    }
}

static void
nmt_editor_section_get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
    NmtEditorSectionPrivate *priv = NMT_EDITOR_SECTION_GET_PRIVATE(object);

    switch (prop_id) {
    case PROP_TITLE:
        g_value_set_string(value, priv->title);
        break;
    case PROP_SHOW_BY_DEFAULT:
        g_value_set_boolean(value, priv->show_by_default);
        break;
    case PROP_HEADER_WIDGET:
        g_value_set_object(value, priv->header_widget);
        break;
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
        break;
    }
}

static void
nmt_editor_section_class_init(NmtEditorSectionClass *section_class)
{
    GObjectClass *object_class = G_OBJECT_CLASS(section_class);

    g_type_class_add_private(section_class, sizeof(NmtEditorSectionPrivate));

    /* virtual methods */
    object_class->set_property = nmt_editor_section_set_property;
    object_class->get_property = nmt_editor_section_get_property;
    object_class->finalize     = nmt_editor_section_finalize;

    /* properties */

    /**
     * NmtEditorSection:title:
     *
     * The section's title.
     */
    g_object_class_install_property(
        object_class,
        PROP_TITLE,
        g_param_spec_string("title",
                            "",
                            "",
                            NULL,
                            G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));

    /**
     * NmtEditorSection:show-by-default:
     *
     * Whether the section should be expanded by default.
     */
    g_object_class_install_property(
        object_class,
        PROP_SHOW_BY_DEFAULT,
        g_param_spec_boolean("show-by-default",
                             "",
                             "",
                             TRUE,
                             G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));

    /**
     * NmtEditorSection:header-widget:
     *
     * The widget (if any) that appears between the section title and its toggle
     * button.
     */
    g_object_class_install_property(
        object_class,
        PROP_HEADER_WIDGET,
        g_param_spec_object("header-widget",
                            "",
                            "",
                            NMT_TYPE_NEWT_WIDGET,
                            G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}
