/*
 * forms.c
 *
 * Copyright (C) 2010 Arx Cruz
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 121 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 *
 * Authors: Arx Cruz <arxcruz@gnome.org>
 */

#include "config.h"
#include "util.h"
#include "zenity.h"
#include <string.h>

static ZenityData *zen_data;
static GSList *selected;
static void zenity_forms_dialog_response (
	GtkWidget *widget, int response, gpointer data);

static void
zenity_forms_dialog_get_selected (GtkTreeModel *model, GtkTreePath *path_buf,
	GtkTreeIter *iter, GtkTreeView *tree_view) {
	gint n_columns = 0;
	gint i = 0;
	GValue value = {
		0,
	};

	n_columns = gtk_tree_model_get_n_columns (model);
	for (i = 0; i < n_columns; i++) {
		gtk_tree_model_get_value (model, iter, i, &value);
		selected = g_slist_append (selected, g_value_dup_string (&value));
		g_value_unset (&value);
	}
}

static GtkWidget *
zenity_forms_create_and_fill_combo (
	ZenityFormsData *forms_data, int combo_number) {
	GtkListStore *list_store;
	GtkWidget *combo_box;
	GtkCellRenderer *renderer;
	gchar *combo_values;

	list_store = gtk_list_store_new (1, G_TYPE_STRING);

	if (forms_data->combo_values) {
		combo_values =
			g_slist_nth_data (forms_data->combo_values, combo_number);
		if (combo_values) {
			gchar **row_values = g_strsplit_set (combo_values, "|", -1);
			if (row_values) {
				gint i = 0;
				GtkTreeIter iter;
				gchar *row = row_values[i];

				while (row != NULL) {
					gtk_list_store_append (list_store, &iter);
					gtk_list_store_set (list_store, &iter, 0, row, -1);
					row = row_values[++i];
				}
				g_strfreev (row_values);
			}
			g_free (combo_values);
		}
	}

	combo_box = gtk_combo_box_new_with_model (GTK_TREE_MODEL (list_store));
	g_object_unref (G_OBJECT (list_store));

	renderer = gtk_cell_renderer_text_new ();
	gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combo_box), renderer, TRUE);
	gtk_cell_layout_set_attributes (
		GTK_CELL_LAYOUT (combo_box), renderer, "text", 0, NULL);

	return combo_box;
}

static GtkWidget *
zenity_forms_create_and_fill_list (
	ZenityFormsData *forms_data, int list_number, gchar *header) {
	GtkListStore *list_store;
	GtkWidget *tree_view;
	GtkWidget *scrolled_window;
	GtkCellRenderer *renderer;
	GtkTreeViewColumn *column;
	GType *column_types = NULL;
	gchar *list_values;
	gchar *column_values;

	gint i = 0;
	/* If no column names available, default is one */
	gint n_columns = 1;
	gint column_index = 0;

	tree_view = gtk_tree_view_new ();

	if (forms_data->column_values) {
		int columns_values_count =
			g_slist_length (forms_data->column_values);
		int column_number = 0;
		if (list_number < columns_values_count) {
			column_number = list_number;
		}

		column_values =
			g_slist_nth_data (forms_data->column_values, column_number);
		if (column_values) {
			gchar **values = g_strsplit_set (column_values, "|", -1);
			if (values) {
				n_columns = g_strv_length (values);
				column_types = g_new (GType, n_columns);
				for (i = 0; i < n_columns; i++)
					column_types[i] = G_TYPE_STRING;

				for (i = 0; i < n_columns; i++) {
					gchar *column_name = values[i];
					renderer = gtk_cell_renderer_text_new ();
					column = gtk_tree_view_column_new_with_attributes (
						column_name, renderer, "text", column_index, NULL);
					gtk_tree_view_append_column (
						GTK_TREE_VIEW (tree_view), column);
					column_index++;
				}
			}
		} else {
			/* If no values available, add one with string type*/
			column_types = g_new (GType, n_columns);
			column_types[0] = G_TYPE_STRING;
		}
	}

	list_store = g_object_new (GTK_TYPE_LIST_STORE, NULL);

	gtk_list_store_set_column_types (list_store, n_columns, column_types);

	if (forms_data->list_values) {
		list_values = g_slist_nth_data (forms_data->list_values, list_number);
		if (list_values) {
			gchar **row_values = g_strsplit_set (list_values, "|", -1);
			if (row_values) {
				GtkTreeIter iter;
				gchar *row = row_values[0];
				gint position = -1;
				i = 0;

				while (row != NULL) {
					if (position >= n_columns || position == -1) {
						position = 0;
						gtk_list_store_append (list_store, &iter);
					}
					gtk_list_store_set (list_store, &iter, position, row, -1);
					position++;
					row = row_values[++i];
				}
				g_strfreev (row_values);
			}
			g_free (list_values);
		}
	}

	gtk_tree_view_set_model (
		GTK_TREE_VIEW (tree_view), GTK_TREE_MODEL (list_store));
	g_object_unref (list_store);
	scrolled_window = gtk_scrolled_window_new (NULL, NULL);
	// gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW
	// (scrolled_window),
	//                                       GTK_WIDGET (tree_view));
	gtk_container_add (GTK_CONTAINER (scrolled_window), GTK_WIDGET (tree_view));
	gtk_widget_set_size_request (GTK_WIDGET (scrolled_window), -1, 100);
	gtk_tree_view_set_headers_visible (
		GTK_TREE_VIEW (tree_view), forms_data->show_header);

	return scrolled_window;
}

void
zenity_forms_dialog (ZenityData *data, ZenityFormsData *forms_data) {
	GtkBuilder *builder = NULL;
	GtkWidget *dialog;
	GtkWidget *grid;
	GtkWidget *text;
	GtkWidget *button;

	GSList *tmp;

	int list_count = 0;
	int combo_count = 0;
	int i = 0;

	zen_data = data;

	builder = zenity_util_load_ui_file ("zenity_forms_dialog", NULL);

	if (builder == NULL) {
		data->exit_code = zenity_util_return_exit_code (ZENITY_ERROR);
		return;
	}

	gtk_builder_connect_signals (builder, NULL);

	dialog =
		GTK_WIDGET (gtk_builder_get_object (builder, "zenity_forms_dialog"));

	g_signal_connect (G_OBJECT (dialog),
		"response",
		G_CALLBACK (zenity_forms_dialog_response),
		forms_data);

	if (data->dialog_title)
		gtk_window_set_title (GTK_WINDOW (dialog), data->dialog_title);

	if (data->width > -1 || data->height > -1)
		gtk_window_set_default_size (
			GTK_WINDOW (dialog), data->width, data->height);

	if (data->extra_label) {
		gint i = 0;
		while (data->extra_label[i] != NULL) {
			gtk_dialog_add_button (
				GTK_DIALOG (dialog), data->extra_label[i], i);
			i++;
		}
	}

	if (data->ok_label) {
		button = GTK_WIDGET (
			gtk_builder_get_object (builder, "zenity_forms_ok_button"));
		gtk_button_set_label (GTK_BUTTON (button), data->ok_label);
	}

	if (data->cancel_label) {
		button = GTK_WIDGET (
			gtk_builder_get_object (builder, "zenity_forms_cancel_button"));
		gtk_button_set_label (GTK_BUTTON (button), data->cancel_label);
	}

	text = GTK_WIDGET (gtk_builder_get_object (builder, "zenity_forms_text"));

	if (forms_data->dialog_text)
		gtk_label_set_markup (
			GTK_LABEL (text), g_strcompress (forms_data->dialog_text));

	grid = GTK_WIDGET (gtk_builder_get_object (builder, "zenity_forms_grid"));

	for (tmp = forms_data->list; tmp; tmp = tmp->next) {
		ZenityFormsValue *zenity_value = (ZenityFormsValue *) tmp->data;
		GtkWidget *label;

		label = gtk_label_new (zenity_value->option_value);
		gtk_widget_set_halign (label, GTK_ALIGN_START);
		gtk_grid_attach (GTK_GRID (grid), label, 0, i, 1, 1);

		switch (zenity_value->type) {
			case ZENITY_FORMS_ENTRY:
				zenity_value->forms_widget = gtk_entry_new ();
				break;
			case ZENITY_FORMS_PASSWORD:
				zenity_value->forms_widget = gtk_entry_new ();
				gtk_entry_set_visibility (
					GTK_ENTRY (zenity_value->forms_widget), FALSE);
				break;
			case ZENITY_FORMS_CALENDAR:
				zenity_value->forms_widget = gtk_calendar_new ();
				break;
			case ZENITY_FORMS_LIST:
				zenity_value->forms_widget = zenity_forms_create_and_fill_list (
					forms_data, list_count, zenity_value->option_value);
				list_count++;
				break;
			case ZENITY_FORMS_COMBO:
				zenity_value->forms_widget =
					zenity_forms_create_and_fill_combo (
						forms_data, combo_count);
				combo_count++;
				break;
			default:
				zenity_value->forms_widget = gtk_entry_new ();
				break;
		}

		gtk_grid_attach_next_to (GTK_GRID (grid),
			GTK_WIDGET (zenity_value->forms_widget),
			label,
			GTK_POS_RIGHT,
			1,
			1);

		i++;
	}

	gtk_widget_show_all (GTK_WIDGET (dialog));

	g_object_unref (builder);

	if (data->timeout_delay > 0) {
		g_timeout_add_seconds (data->timeout_delay,
			(GSourceFunc) zenity_util_timeout_handle,
			dialog);
	}

	gtk_main ();
}

static void
zenity_forms_dialog_output (ZenityFormsData *forms_data) {
	GSList *tmp, *tmp2;
	guint day, year, month;
	GDate *date = NULL;
	gchar time_string[128];
	gchar *combo_value = NULL;
	GtkTreeSelection *selection;
	GtkListStore *list_store;
	GtkTreeIter iter;

	for (tmp = forms_data->list; tmp; tmp = tmp->next) {
		ZenityFormsValue *zenity_value = (ZenityFormsValue *) tmp->data;
		switch (zenity_value->type) {
			case ZENITY_FORMS_PASSWORD:
			case ZENITY_FORMS_ENTRY:
				g_print ("%s",
					gtk_entry_get_text (
						GTK_ENTRY (zenity_value->forms_widget)));
				break;
			case ZENITY_FORMS_LIST:
				selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (
					gtk_bin_get_child (GTK_BIN (zenity_value->forms_widget))));
				gtk_tree_selection_selected_foreach (selection,
					(GtkTreeSelectionForeachFunc)
						zenity_forms_dialog_get_selected,
					GTK_TREE_VIEW (gtk_bin_get_child (
						GTK_BIN (zenity_value->forms_widget))));

				for (tmp2 = selected; tmp2; tmp2 = tmp2->next) {
					if (tmp->next != NULL) {
						g_print ("%s,", (gchar *) tmp2->data);
					} else
						g_print ("%s", (gchar *) tmp2->data);
				}

				g_slist_foreach (selected, (GFunc) g_free, NULL);
				selected = NULL;

				break;
			case ZENITY_FORMS_CALENDAR:
				gtk_calendar_get_date (
					GTK_CALENDAR (zenity_value->forms_widget),
					&day,
					&month,
					&year);
				date = g_date_new_dmy (year, month + 1, day);
				g_date_strftime (
					time_string, 127, forms_data->date_format, date);
				g_print ("%s", time_string);
				break;
			case ZENITY_FORMS_COMBO:
				if (gtk_combo_box_get_active_iter (
						GTK_COMBO_BOX (zenity_value->forms_widget), &iter)) {
					list_store = GTK_LIST_STORE (gtk_combo_box_get_model (
						GTK_COMBO_BOX (zenity_value->forms_widget)));
					gtk_tree_model_get (GTK_TREE_MODEL (list_store),
						&iter,
						0,
						&combo_value,
						-1);
					g_object_unref (G_OBJECT (list_store));

					g_print ("%s", combo_value);
					g_free (combo_value);
				} else
					g_print (" ");
				break;
		}
		if (tmp->next != NULL)
			g_print ("%s", forms_data->separator);
	}
	g_print ("\n");
}

static void
zenity_forms_dialog_response (GtkWidget *widget, int response, gpointer data) {
	ZenityFormsData *forms_data = (ZenityFormsData *) data;

	switch (response) {
		case GTK_RESPONSE_OK:
			zenity_forms_dialog_output (forms_data);
			zenity_util_exit_code_with_data (ZENITY_OK, zen_data);
			break;

		case GTK_RESPONSE_CANCEL:
			zen_data->exit_code = zenity_util_return_exit_code (ZENITY_CANCEL);
			break;

		case ZENITY_TIMEOUT:
			zenity_forms_dialog_output (forms_data);
			zen_data->exit_code = zenity_util_return_exit_code (ZENITY_TIMEOUT);
			break;

		default:
			if (zen_data->extra_label &&
				response < g_strv_length (zen_data->extra_label))
				printf ("%s\n", zen_data->extra_label[response]);
			zen_data->exit_code = zenity_util_return_exit_code (ZENITY_ESC);
			break;
	}

	gtk_main_quit ();
}