/*
 * Copyright 2013 Ole Loots <ole@monochrom.net>
 *
 * This file is part of NetSurf, http://www.netsurf-browser.org/
 *
 * NetSurf 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; version 2 of the License.
 *
 * NetSurf 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, see <http://www.gnu.org/licenses/>.
 */



#include <ctype.h>
#include <string.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>

#include "desktop/browser.h"
#include "content/content.h"
#include "content/hlcache.h"
#include "content/urldb.h"
#include "utils/nsoption.h"
#include "desktop/global_history.h"
#include "desktop/tree.h"
#include "desktop/gui.h"
#include "desktop/core_window.h"
#include "utils/log.h"
#include "utils/messages.h"
#include "utils/utils.h"
#include "utils/url.h"
#include "atari/gui.h"
#include "atari/misc.h"
#include "atari/treeview.h"
#include "atari/history.h"
#include "atari/findfile.h"
#include "atari/gemtk/gemtk.h"
#include "atari/res/netsurf.rsh"

extern GRECT desk_area;

struct atari_global_history_s atari_global_history;

/* Setup Atari Treeview Callbacks: */
static nserror atari_global_history_init_phase2(struct core_window *cw,
				struct core_window_callback_table * default_callbacks);
static void atari_global_history_finish(struct core_window *cw);
static void atari_global_history_keypress(struct core_window *cw,
												uint32_t ucs4);
static void atari_global_history_mouse_action(struct core_window *cw,
												browser_mouse_state mouse,
												int x, int y);
static void atari_global_history_draw(struct core_window *cw, int x,
											int y, struct rect *clip,
											const struct redraw_context *ctx);
static short handle_event(GUIWIN *win, EVMULT_OUT *ev_out, short msg[8]);

static struct atari_treeview_callbacks atari_global_history_treeview_callbacks = {
	.init_phase2 = atari_global_history_init_phase2,
	.finish = atari_global_history_finish,
	.draw = atari_global_history_draw,
	.keypress = atari_global_history_keypress,
	.mouse_action = atari_global_history_mouse_action,
	.gemtk_user_func = handle_event
};

static nserror atari_global_history_init_phase2(struct core_window *cw,
								struct core_window_callback_table *cb_t)
{
	LOG((""));
	return(global_history_init(cb_t, cw));
}

static void atari_global_history_finish(struct core_window *cw)
{
	LOG((""));
	global_history_fini();
}

static void atari_global_history_draw(struct core_window *cw, int x,
											int y, struct rect *clip,
											const struct redraw_context *ctx)
{
	global_history_redraw(x, y, clip, ctx);
}

static void atari_global_history_keypress(struct core_window *cw, uint32_t ucs4)
{
	LOG(("ucs4: %lu\n", ucs4));
	global_history_keypress(ucs4);
}

static void atari_global_history_mouse_action(struct core_window *cw,
												browser_mouse_state mouse,
												int x, int y)
{
	LOG(("x:  %d, y: %d\n", x, y));
	if((mouse & BROWSER_MOUSE_HOVER) && global_history_has_selection()){
		global_history_mouse_action(mouse, x, y);
	} else {
		global_history_mouse_action(mouse, x, y);
	}

}



static short handle_event(GUIWIN *win, EVMULT_OUT *ev_out, short msg[8])
{
	struct atari_treeview_window *tv=NULL;
	GRECT tb_area;
	GUIWIN * gemtk_win;
	struct gui_window * gw;
	char *cur_url = NULL;
	char *cur_title = NULL;

	LOG((""));

	if(ev_out->emo_events & MU_MESAG){
		switch (msg[0]) {

//			case WM_TOOLBAR:
//				LOG(("WM_TOOLBAR"));
//				tv = (struct atari_treeview_window*) gemtk_wm_get_user_data(win);
//				assert(tv);
//				switch	(msg[4]) {
//					case TOOLBAR_HOTLIST_CREATE_FOLDER:
//						hotlist_add_folder(NULL, 0, 0);
//						break;
//
//					case TOOLBAR_HOTLIST_ADD:
//						gw = gui_window_get_input_window();
//						if(gw && gw->browser){
//							cur_url = gui_window_get_url(gw);
//							cur_title = gui_window_get_title(gw);
//							// TODO: read language string.
//							cur_title = (cur_title ? cur_title : "New bookmark");
//						} else {
//							cur_url = "http://www";
//						}
//						atari_global_history_add_page(cur_url, cur_title);
//						break;
//
//					case TOOLBAR_HOTLIST_DELETE:
//						hotlist_keypress(KEY_DELETE_LEFT);
//						// TODO: check if redraw is really required,
//						// 		  - implement treeview getter for the gemtk
//						//          handle.
//						break;
//
//					case TOOLBAR_HOTLIST_EDIT:
//						hotlist_edit_selection();
//						break;
//				}
//
//				gemtk_win = atari_treeview_get_gemtk_window(tv);
//				assert(gemtk_win);
//				gemtk_obj_get_tree(TOOLBAR_HOTLIST)[msg[4]].ob_state &= ~OS_SELECTED;
//				atari_treeview_get_grect(tv, TREEVIEW_AREA_TOOLBAR, &tb_area);
//				evnt_timer(150);
//				gemtk_wm_exec_redraw(gemtk_win, &tb_area);
//
//			break;

			case WM_CLOSED:
				atari_global_history_close();
			break;

			default: break;
		}
	}

	// TODO: implement selectable objects in toolbar API:
	// ObjcChange( OC_TOOLBAR, win, buff[4], ~SELECTED, OC_MSG );
}



void atari_global_history_init(void)
{
	if (atari_global_history.init == false) {


		if( atari_global_history.window == NULL ){
			int flags = ATARI_TREEVIEW_WIDGETS;
			short handle = -1;
			GRECT desk;
			OBJECT * tree = gemtk_obj_get_tree(TOOLBAR_HISTORY);
			assert( tree );

			handle = wind_create(flags, 0, 0, desk_area.g_w, desk_area.g_h);
			atari_global_history.window = gemtk_wm_add(handle, GEMTK_WM_FLAG_DEFAULTS, NULL);
			if( atari_global_history.window == NULL ) {
				gemtk_msg_box_show(GEMTK_MSG_BOX_ALERT,
									"Failed to allocate History");
				return;
			}
			wind_set_str(handle, WF_NAME, (char*)messages_get("History"));
			gemtk_wm_set_toolbar(atari_global_history.window, tree, 0, 0);
			gemtk_wm_unlink(atari_global_history.window);

			atari_global_history.tv = atari_treeview_create(
									atari_global_history.window,
									&atari_global_history_treeview_callbacks,
									flags);

			if (atari_global_history.tv == NULL) {
				/* handle it properly, clean up previous allocs */
				LOG(("Failed to allocate treeview"));
				return;
			}

		} else {

		}
	}
	atari_global_history.init = true;
}

void atari_global_history_open(void)
{
	assert(atari_global_history.init);

	if (atari_global_history.init == false) {
		return;
	}

	if (atari_treeview_is_open(atari_global_history.tv) == false) {

	    GRECT pos;
	    pos.g_x = desk_area.g_w - desk_area.g_w / 4;
	    pos.g_y = desk_area.g_y;
	    pos.g_w = desk_area.g_w / 4;
	    pos.g_h = desk_area.g_h;

		atari_treeview_open(atari_global_history.tv, &pos);
	} else {
		wind_set(gemtk_wm_get_handle(atari_global_history.window), WF_TOP, 1, 0, 0, 0);
	}
}

void atari_global_history_close(void)
{
	atari_treeview_close(atari_global_history.tv);
}

void atari_global_history_destroy(void)
{

	if( atari_global_history.init == false) {
		return;
	}
	if( atari_global_history.window != NULL ) {
		if (atari_treeview_is_open(atari_global_history.tv))
			atari_global_history_close();
		wind_delete(gemtk_wm_get_handle(atari_global_history.window));
		gemtk_wm_remove(atari_global_history.window);
		atari_global_history.window = NULL;
		atari_treeview_delete(atari_global_history.tv);
		atari_global_history.init = false;
	}
	LOG(("done"));
}

void atari_global_history_redraw(void)
{
	atari_treeview_redraw(atari_global_history.tv);
}