#include <sstream>
#include <list>
using namespace std;

#include <ocarina/settings.h>
#include <ocarina/chooser.h>
#include <ocarina/button.h>
#include <ocarina/gtk.h>

#include <libsaria/library.h>
#include <libsaria/print.h>

struct PathInfo
{
	GtkWidget *widget;
	GtkWidget *remove;
	GtkWidget *update;
	string path;
};

/* This is a gtk vbox */
static GtkWidget *library_settings = NULL;
static GtkWidget *path_panels      = NULL;
static list<PathInfo> path_widgets;

static void on_click_add(GtkWidget *b, GdkEvent *e, gpointer d)
{
	string dir = ocarina_choose_dir();
	if (dir != "" ) {
		println("Scanning dir: " + dir);
		libsaria::library::add_path(dir);
	}
}

static void on_click_update(GtkWidget *b, GdkEvent *e, gpointer d)
{
	libsaria::library::update();
}

static void on_click_update_path(GtkWidget *b, GdkEvent *e, gpointer d)
{
	list<PathInfo>::iterator it;
	for (it = path_widgets.begin(); it != path_widgets.end(); it++) {
		if ((*it).update == b) {
			libsaria::library::update_path((*it).path);
			break;
		}
	}

}

static void on_click_remove(GtkWidget *b, GdkEvent *e, gpointer d)
{
	list<PathInfo>::iterator it;
	for (it = path_widgets.begin(); it != path_widgets.end(); it++) {
		if ((*it).remove == b) {
			libsaria::library::remove_path((*it).path);
			break;
		}
	}
}

static GtkWidget *make_add_button()
{
	return make_text_button(GTK_STOCK_ADD,
				"Add to Library",
				on_click_add,
				true);
}

static GtkWidget *make_update_button()
{
	return make_text_button(GTK_STOCK_REFRESH,
				"Update Library",
				on_click_update,
				true);
}

static GtkWidget *make_update_path_button()
{
	return make_text_button(GTK_STOCK_REFRESH,
				"Update Path",
				on_click_update_path,
				true);
}


static GtkWidget *make_remove_button()
{
	return make_text_button(GTK_STOCK_REMOVE,
				"Remove Path",
				on_click_remove,
				true);
}

static GtkWidget *markup_label(string markup)
{
	GtkWidget *label = gtk_label_new("");
	gtk_label_set_markup(GTK_LABEL(label), markup.c_str());
	return label;
}

static GtkWidget *make_path_info(string path, unsigned int size)
{
	stringstream stream;
	GtkWidget *path_label, *size_label;
	GtkWidget *box = gtk_vbox_new(FALSE, 0);

	stream << "<span size='xx-large' weight='bold'>" << path << "</span>";
	path_label = markup_label(stream.str());
	stream.str("");

	stream << "<span size='large'>" << size << " files</span>";
	size_label = markup_label(stream.str());

	box_pack_start(box, path_label, TRUE, TRUE, 0);
	box_pack_start(box, size_label, TRUE, TRUE, 0);
	return box;
}

static GtkWidget *add_buttons(GtkWidget *info_box, struct PathInfo &path)
{
	GtkWidget *button_box = gtk_hbox_new(FALSE, 0);
	path.remove = make_remove_button();
	path.update = make_update_path_button();

	box_pack_start(button_box, info_box,    TRUE,   TRUE, 0);
	box_pack_start(button_box, path.update, FALSE, FALSE, 0);
	box_pack_start(button_box, path.remove, FALSE, FALSE, 0);
	return button_box;
}

static void add_library_panel(GtkWidget *content, struct PathInfo &path)
{
	GtkWidget *panel_box = gtk_vbox_new(FALSE, 0);
	GtkWidget *sep = gtk_hseparator_new();

	box_pack_start(panel_box, content, TRUE, TRUE, 0);
	box_pack_start(panel_box,     sep, TRUE, TRUE, 0);
	box_pack_start(path_panels, panel_box, FALSE, FALSE, 0);

	path.widget = panel_box;
	path_widgets.push_back(path);
}

static void add_library_path(struct libsaria::library::PathInfo &info)
{
	struct PathInfo path;
	GtkWidget *main_box = gtk_hbox_new(FALSE, 0);
	GtkWidget *info_box = make_path_info(info.path, info.size);
	GtkWidget *buttons  = add_buttons(info_box, path);

	path.path = info.path;

	box_pack_start(main_box, buttons, TRUE, TRUE, 0);
	add_library_panel(main_box, path);
}

void library_settings_refresh()
{
	while (path_widgets.size() != 0) {
		gtk_widget_destroy(path_widgets.front().widget);
		path_widgets.pop_front();
	}

	libsaria::library::for_each_path(add_library_path);
	gtk_widget_show_all(library_settings);
}

void library_settings_init()
{
	GtkWidget *button_row = gtk_hbox_new(FALSE, 0);
	library_settings      = gtk_vbox_new(FALSE, 0);
	path_panels           = gtk_vbox_new(FALSE, 0);

	libsaria::library::for_each_path(add_library_path);

	box_pack_start(library_settings, path_panels,  FALSE, FALSE, 0);
	box_pack_start(library_settings, button_row,   FALSE, FALSE, 0);
	box_pack_end(button_row, make_add_button(),    FALSE, FALSE, 0);
	box_pack_end(button_row, make_update_button(), FALSE, FALSE, 0);

	gtk_widget_show_all(library_settings);
	add_settings_page("Library", library_settings);
}