/* rugby-app-window.c
 *
 * Copyright © 2017-2018 Bruce Cowan <bruce@bcowan.eu>
 *
 * This file is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 3 of the
 * License, or (at your option) any later version.
 *
 * This file 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <gtk/gtk.h>

#include "rugby-application.h"
#include "rugby-app-window.h"
#include "rugby-cell-renderer-score.h"
#include "rugby-score-store.h"
#include "rugby-scoring.h"

struct _RugbyAppWindow
{
    GtkApplicationWindow parent;

    RugbyScoreStore *store;
    GtkTreeModel *filter;

    GtkWidget *tryfilter;
    GtkWidget *kickfilter;
    GtkWidget *tryscale;
    GtkWidget *kickscale;
    GtkWidget *treeview;
};

G_DEFINE_TYPE(RugbyAppWindow, rugby_app_window, GTK_TYPE_APPLICATION_WINDOW);

static void
scorespin_value_changed_cb (GtkSpinButton  *spin,
                            RugbyAppWindow *self)
{
    gint score = gtk_spin_button_get_value_as_int (spin);
    rugby_score_store_set_score (self->store, score);

    gint max_tries = MAX (rugby_scoring_get_max_tries (score), 1.0);
    gtk_range_set_range (GTK_RANGE (self->tryscale), 0.0, max_tries);

    gint max_kicks = MAX (rugby_scoring_get_max_kicks (score), 1.0);
    gtk_range_set_range (GTK_RANGE (self->kickscale), 0.0, max_kicks);
}

static void
scale_value_changed_cb (GtkRange       *range,
                        RugbyAppWindow *self)
{
    gtk_tree_model_filter_refilter (GTK_TREE_MODEL_FILTER (self->filter));
}

static gboolean
filter_visible_func (GtkTreeModel *model,
                     GtkTreeIter  *iter,
                     gpointer      data)
{
    RugbyAppWindow *self = RUGBY_APP_WINDOW (data);

    gint tries, utries, kicks;

    gint ftries = gtk_range_get_value (GTK_RANGE (self->tryscale));
    gint fkicks = gtk_range_get_value (GTK_RANGE (self->kickscale));
    gtk_tree_model_get (model, iter,
                        RUGBY_SCORE_STORE_TRIES, &tries,
                        RUGBY_SCORE_STORE_UTRIES, &utries,
                        RUGBY_SCORE_STORE_KICKS, &kicks,
                        -1);

    gboolean try_filter = gtk_switch_get_active (GTK_SWITCH (self->tryfilter));
    gboolean kick_filter = gtk_switch_get_active (GTK_SWITCH (self->kickfilter));
    gboolean try_equal = ((tries + utries) == ftries);
    gboolean kick_equal = (kicks == fkicks);

    if (try_filter && kick_filter)
        return try_equal && kick_equal;
    else if (try_filter)
        return try_equal;
    else if (kick_filter)
        return kick_equal;
    else
        return TRUE;
}

static void
rugby_app_window_init (RugbyAppWindow *self)
{
    gtk_widget_init_template (GTK_WIDGET (self));

    GtkCellRenderer *renderer = rugby_cell_renderer_score_new ();
    GtkTreeViewColumn *column =
        gtk_tree_view_column_new_with_attributes ("Score", renderer,
                                                  "tries", RUGBY_SCORE_STORE_TRIES,
                                                  "utries", RUGBY_SCORE_STORE_UTRIES,
                                                  "kicks", RUGBY_SCORE_STORE_KICKS,
                                                  NULL);
    gtk_tree_view_append_column (GTK_TREE_VIEW (self->treeview), column);

    // TODO: put this in the builder file instead
    self->store = rugby_score_store_new ();
    self->filter = gtk_tree_model_filter_new (GTK_TREE_MODEL (self->store), NULL);

    gtk_tree_model_filter_set_visible_func (GTK_TREE_MODEL_FILTER (self->filter),
                                            filter_visible_func, self, NULL);
    gtk_tree_view_set_model (GTK_TREE_VIEW (self->treeview), self->filter);

    g_object_bind_property (self->tryfilter, "active",
                            self->tryscale, "sensitive",
                            G_BINDING_DEFAULT);
    g_object_bind_property (self->kickfilter, "active",
                            self->kickscale, "sensitive",
                            G_BINDING_DEFAULT);

}

static void
rugby_app_window_dispose (GObject *object)
{
    RugbyAppWindow *self = RUGBY_APP_WINDOW (object);

    g_clear_object (&self->store);
    g_clear_object (&self->filter);

    G_OBJECT_CLASS (rugby_app_window_parent_class)->dispose (object);
}

static void
rugby_app_window_class_init (RugbyAppWindowClass *klass)
{
    GObjectClass *obj_class = G_OBJECT_CLASS (klass);
    GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);

    obj_class->dispose = rugby_app_window_dispose;

    gtk_widget_class_set_template_from_resource (widget_class,
                                                 "/uk/me/bcowan/rugby/interface.ui");
    gtk_widget_class_bind_template_child (widget_class, RugbyAppWindow, tryfilter);
    gtk_widget_class_bind_template_child (widget_class, RugbyAppWindow, kickfilter);
    gtk_widget_class_bind_template_child (widget_class, RugbyAppWindow, tryscale);
    gtk_widget_class_bind_template_child (widget_class, RugbyAppWindow, kickscale);
    gtk_widget_class_bind_template_child (widget_class, RugbyAppWindow, treeview);

    gtk_widget_class_bind_template_callback (widget_class, scorespin_value_changed_cb);
    gtk_widget_class_bind_template_callback (widget_class, scale_value_changed_cb);
}

RugbyAppWindow *
rugby_app_window_new (RugbyApplication *app)
{
    return g_object_new (RUGBY_TYPE_APP_WINDOW, "application", app, NULL);
}