/*
 * transmission-remote-gtk - A GTK RPC client to Transmission
 * Copyright (C) 2011-2013  Alan Fitton

 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.

 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.

 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <gtk/gtk.h>
#include <json-glib/json-glib.h>

#include "trg-json-widgets.h"
#include "json.h"
#include "util.h"

/* Functions for creating widgets that load/save their state from/to a JSON
 * object. This is used by the torrent properties and remote settings dialogs.
 * The pattern here is farily similar to that used in local configuration,
 * the widget creation functions take a list as an argument, which gets a
 * trg_json_widget_desc appended to it. This contains the key, and the function
 * pointers for load/save.
 */

void trg_json_widgets_save(GList * list, JsonObject * out)
{
    GList *li;
    for (li = list; li; li = g_list_next(li)) {
        trg_json_widget_desc *wd = (trg_json_widget_desc *) li->data;
        wd->saveFunc(wd->widget, out, wd->key);
    }
}

void trg_json_widget_desc_free(trg_json_widget_desc * wd)
{
    g_free(wd->key);
    g_free(wd);
}

void trg_json_widget_desc_list_free(GList * list)
{
    GList *li;
    for (li = list; li; li = g_list_next(li))
        trg_json_widget_desc_free((trg_json_widget_desc *) li->data);

    g_list_free(list);
}

void toggle_active_arg_is_sensitive(GtkToggleButton * b, gpointer data)
{
    gtk_widget_set_sensitive(GTK_WIDGET(data),
                             gtk_toggle_button_get_active(b));
}

GtkWidget *trg_json_widget_check_new(GList ** wl, JsonObject * obj,
                                     const gchar * key,
                                     const gchar * label,
                                     GtkWidget * toggleDep)
{
    GtkWidget *w = gtk_check_button_new_with_mnemonic(label);
    trg_json_widget_desc *wd = g_new0(trg_json_widget_desc, 1);

    wd->saveFunc = trg_json_widget_check_save;
    wd->key = g_strdup(key);
    wd->widget = w;

    if (toggleDep) {
        gtk_widget_set_sensitive(w,
                                 gtk_toggle_button_get_active
                                 (GTK_TOGGLE_BUTTON(toggleDep)));
        g_signal_connect(G_OBJECT(toggleDep), "toggled",
                         G_CALLBACK(toggle_active_arg_is_sensitive), w);
    }

    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w),
                                 json_object_get_boolean_member(obj, key));

    *wl = g_list_append(*wl, wd);

    return w;
}

GtkWidget *trg_json_widget_entry_new(GList ** wl, JsonObject * obj,
                                     const gchar * key,
                                     GtkWidget * toggleDep)
{
    GtkWidget *w = gtk_entry_new();
    trg_json_widget_desc *wd = g_new0(trg_json_widget_desc, 1);

    wd->saveFunc = trg_json_widget_entry_save;
    wd->key = g_strdup(key);
    wd->widget = w;

    if (toggleDep) {
        gtk_widget_set_sensitive(w,
                                 gtk_toggle_button_get_active
                                 (GTK_TOGGLE_BUTTON(toggleDep)));
        g_signal_connect(G_OBJECT(toggleDep), "toggled",
                         G_CALLBACK(toggle_active_arg_is_sensitive), w);
    }

    gtk_entry_set_text(GTK_ENTRY(w),
                       json_object_get_string_member(obj, key));

    *wl = g_list_append(*wl, wd);

    return w;
}

GtkWidget *trg_json_widget_spin_new(GList ** wl, JsonObject * obj,
                                    const gchar * key,
                                    GtkWidget * toggleDep, gdouble min,
                                    gdouble max, gdouble step)
{
    GtkWidget *w = gtk_spin_button_new_with_range(min, max, step);
    trg_json_widget_desc *wd = g_new0(trg_json_widget_desc, 1);
    JsonNode *node = json_object_get_member(obj, key);

    wd->saveFunc = trg_json_widget_spin_save_double;
    wd->key = g_strdup(key);
    wd->widget = w;

    if (toggleDep) {
        gtk_widget_set_sensitive(w,
                                 gtk_toggle_button_get_active
                                 (GTK_TOGGLE_BUTTON(toggleDep)));
        g_signal_connect(G_OBJECT(toggleDep), "toggled",
                         G_CALLBACK(toggle_active_arg_is_sensitive), w);
    }

    gtk_spin_button_set_value(GTK_SPIN_BUTTON(w),
                              json_node_really_get_double(node));

    *wl = g_list_append(*wl, wd);

    return w;
}

void
trg_json_widget_check_save(GtkWidget * widget, JsonObject * obj,
                           gchar * key)
{
    gboolean active =
        gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widget));
    json_object_set_boolean_member(obj, key, active);
}

void
trg_json_widget_entry_save(GtkWidget * widget, JsonObject * obj,
                           gchar * key)
{
    json_object_set_string_member(obj, key,
                                  gtk_entry_get_text(GTK_ENTRY(widget)));
}

void
trg_json_widget_spin_save_double(GtkWidget * widget, JsonObject * obj,
                                 gchar * key)
{
    json_object_set_double_member(obj, key,
                                  gtk_spin_button_get_value(GTK_SPIN_BUTTON
                                                            (widget)));
}
