#include "ephoto.h"

/*Callbacks*/
static void _ephoto_go_back(void *data, Evas_Object *obj, void *event_info);
static void _ephoto_go_first(void *data, Evas_Object *obj, void *event_info);
static void _ephoto_go_last(void *data, Evas_Object *obj, void *event_info);
static void _ephoto_go_next(void *data, Evas_Object *obj, void *event_info);
static void _ephoto_go_previous(void *data, Evas_Object *obj, void *event_info);
static void _ephoto_go_slideshow(void *data, Evas_Object *obj, void *event_info);
static void _ephoto_key_pressed(void *data, Evas *e, Evas_Object *obj, void *event_info);
static void _ephoto_flow_browser_show_cb(void *data, Evas *e, Evas_Object *obj, void *event_info);
static void _ephoto_flow_browser_del_cb(void *data, Evas *e, Evas_Object *obj, void *event_info);

typedef struct _Ephoto_Flow_Browser Ephoto_Flow_Browser;

struct _Ephoto_Flow_Browser
{
        Evas_Object *flow_browser;
        Eina_List *iter;
        Evas_Object *image;
        Evas_Object *image2;
        Evas_Object *toolbar;
        const char *cur_image;
};

static const char *toolbar_items[] = {
	"First",
	"Previous",
	"Next",
	"Last",
	"Slideshow"
};

static void
_ephoto_set_title(const char *file)
{
	char *buffer;
	int length;

	length = strlen(file) + strlen("Ephoto - ") + 1;
	buffer = alloca(length);
	snprintf(buffer, length, "Ephoto - %s", file);
	elm_win_title_set(em->win, buffer);
}

static void
_ephoto_go_update(Ephoto_Flow_Browser *ef)
{
	const char *file_type;
	char *buffer;
	int length;

	efreet_mime_init();

	elm_layout_content_unset(ef->flow_browser, "ephoto.flow.swallow");

	evas_object_hide(ef->image);
        evas_object_hide(ef->image2);

	file_type = efreet_mime_type_get(ef->cur_image);
	if (file_type && !strcmp(file_type, "image/jpeg"))
	{
		elm_photocam_file_set(ef->image, ef->cur_image);
		elm_layout_content_set(ef->flow_browser, "ephoto.flow.swallow", ef->image);
		evas_object_show(ef->image);
	} else {
		elm_image_file_set(ef->image2, ef->cur_image, NULL);
		elm_layout_content_set(ef->flow_browser, "ephoto.flow.swallow", ef->image2);
		evas_object_show(ef->image2);
	}

	elm_toolbar_item_unselect_all(ef->toolbar);

	efreet_mime_shutdown();

	length = strlen(ef->cur_image) + strlen("Ephoto - ") + 1;
	buffer = alloca(length);
	snprintf(buffer, length, "Ephoto - %s", ef->cur_image);
	elm_win_title_set(em->win, buffer);
}

/*Create the flow browser*/
Evas_Object *
ephoto_create_flow_browser(Evas_Object *parent)
{
	Evas_Object *o;
	Ephoto_Flow_Browser *ef;

	ef = calloc(1, sizeof(Ephoto_Flow_Browser));
	
	ef->flow_browser = elm_layout_add(parent);
	elm_layout_file_set(ef->flow_browser,
			    PACKAGE_DATA_DIR "/themes/default/ephoto.edj", 
			    "ephoto/flow/layout");
	//	elm_win_resize_object_add(em->win, em->flow_browser);
	evas_object_size_hint_weight_set(ef->flow_browser, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
	evas_object_size_hint_align_set(ef->flow_browser, EVAS_HINT_FILL, EVAS_HINT_FILL);

	ef->image = elm_photocam_add(ef->flow_browser);
        elm_photocam_zoom_mode_set(ef->image, ELM_PHOTOCAM_ZOOM_MODE_AUTO_FIT);
        evas_object_size_hint_weight_set(ef->image, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
        evas_object_size_hint_align_set(ef->image, EVAS_HINT_FILL, EVAS_HINT_FILL);

	ef->image2 = elm_image_add(ef->flow_browser);
	elm_image_smooth_set(ef->image2, EINA_TRUE);
        evas_object_size_hint_weight_set(ef->image2, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
        evas_object_size_hint_align_set(ef->image2, EVAS_HINT_FILL, EVAS_HINT_FILL);

	ef->toolbar = elm_toolbar_add(ef->flow_browser);
        elm_toolbar_icon_size_set(ef->toolbar, 24);
        elm_toolbar_homogenous_set(ef->toolbar, EINA_TRUE);
        evas_object_size_hint_weight_set(ef->toolbar, EVAS_HINT_EXPAND, 0.0);
        evas_object_size_hint_align_set(ef->toolbar, EVAS_HINT_FILL, 0.5);
	elm_layout_content_set(ef->flow_browser, "ephoto.flow.swallow", ef->toolbar);
	evas_object_show(ef->toolbar);

	o = elm_icon_add(ef->toolbar);
        elm_icon_file_set(o, PACKAGE_DATA_DIR "/images/go_back.png", NULL);
        elm_toolbar_item_add(ef->toolbar, o, "Go Back", _ephoto_go_back, ef);

        o = elm_icon_add(ef->toolbar);
        elm_icon_file_set(o, PACKAGE_DATA_DIR "/images/first.png", NULL);
        elm_toolbar_item_add(ef->toolbar, o, "First", _ephoto_go_first, ef);

	o = elm_icon_add(ef->toolbar);
        elm_icon_file_set(o, PACKAGE_DATA_DIR "/images/previous.png", NULL);
        elm_toolbar_item_add(ef->toolbar, o, "Previous", _ephoto_go_previous, ef);

	o = elm_icon_add(ef->toolbar);
        elm_icon_file_set(o, PACKAGE_DATA_DIR "/images/next.png", NULL);
        elm_toolbar_item_add(ef->toolbar, o, "Next", _ephoto_go_next, ef);

        o = elm_icon_add(ef->toolbar);
        elm_icon_file_set(o, PACKAGE_DATA_DIR "/images/last.png", NULL);
        elm_toolbar_item_add(ef->toolbar, o, "Last", _ephoto_go_last, ef);

	o = elm_icon_add(ef->toolbar);
        elm_icon_file_set(o, PACKAGE_DATA_DIR "/images/play_slideshow.png", NULL);
        elm_toolbar_item_add(ef->toolbar, o, "Slideshow", _ephoto_go_slideshow, ef);

	
	evas_object_event_callback_add(ef->flow_browser, EVAS_CALLBACK_SHOW,
						_ephoto_flow_browser_show_cb, ef);
	evas_object_event_callback_add(ef->flow_browser, EVAS_CALLBACK_DEL,
						_ephoto_flow_browser_del_cb, ef);
	evas_object_data_set(ef->flow_browser, "flow_browser", ef);

	return ef->flow_browser;
}

/*Show the flow browser*/

void
ephoto_flow_browser_image_set(Evas_Object *obj, const char *current_image)
{	
        Ephoto_Flow_Browser *ef;
	const char *file_type;
	Elm_Toolbar_Item *o;
	int i;

        ef = evas_object_data_get(obj, "flow_browser");

	if (current_image)
        {
		ef->cur_image = current_image;

		evas_object_event_callback_add(ef->flow_browser, EVAS_CALLBACK_KEY_UP,
						_ephoto_key_pressed, ef);

		ef->iter = eina_list_data_find_list(em->images, current_image);
		for (i = 0; i < (sizeof (toolbar_items) / sizeof (char*)); ++i)
		{
			o = elm_toolbar_item_find_by_label(ef->toolbar, toolbar_items[i]);
			elm_toolbar_item_disabled_set(o, !ef->iter ? EINA_TRUE : EINA_FALSE);
		}

		fprintf(stderr, "iter: %p\n", ef->iter);

		_ephoto_go_update(ef);
	}
	else
	{
		for (i = 0; i < (sizeof (toolbar_items) / sizeof (char*)); ++i)
                {
                        o = elm_toolbar_item_find_by_label(ef->toolbar, toolbar_items[i]);
                        elm_toolbar_item_disabled_set(o, EINA_TRUE);
                }
	}
	elm_layout_content_set(ef->flow_browser, "ephoto.toolbar.swallow", ef->toolbar);
	evas_object_show(ef->toolbar);
	evas_object_show(ef->flow_browser);
	evas_object_focus_set(ef->flow_browser, 1);
}

static void
_ephoto_flow_browser_show_cb(void *data, Evas *e, Evas_Object *obj, void *event_info)
{
        Ephoto_Flow_Browser *ef = data;
	ephoto_flow_browser_image_set(ef->flow_browser, NULL);
}


/*Delete the flow browser*/
static void 
_ephoto_flow_browser_del_cb(void *data, Evas *e, Evas_Object *obj, void *event_info)
{
    Ephoto_Flow_Browser *ef = data;
    Eina_List *items;

    

}

/*A key has been pressed*/
static const struct
{
	const char *name;
	void (*func)(void *data, Evas_Object *obj, void *event_info);
} keys[] = {
	{ "Left", _ephoto_go_previous },
	{ "Right", _ephoto_go_next },
	{ "space", _ephoto_go_next },
	{ "Escape", _ephoto_go_back },
	{ NULL, NULL }
};

static void
_ephoto_key_pressed(void *data, Evas *e, Evas_Object *obj, void *event_data)
{    
        Ephoto_Flow_Browser *ef = data;
	Evas_Event_Key_Up *eku;
	int i;

	eku = (Evas_Event_Key_Up *)event_data;
	for (i = 0; keys[i].name; ++i)
		if (!strcmp(eku->keyname, keys[i].name))
			keys[i].func(ef, NULL, NULL);
}

/*Go back to the thumbnail viewer*/
static void 
_ephoto_go_back(void *data, Evas_Object *obj, void *event_info)
{
        Ephoto_Flow_Browser *ef = data;
    
	evas_object_smart_callback_call(ef->flow_browser, "delete,request", NULL);
	/* elm_toolbar_item_unselect_all(ef->toolbar); */
	/* em->thumb_browser = ephoto_create_thumb_browser(em->layout, ecore_file_dir_get(ef->cur_image)); */
	/* elm_layout_content_set(em->layout, "ephoto.content.swallow", em->thumb_browser); */
    
}

/*Go to the very first image in the list*/
static void 
_ephoto_go_first(void *data, Evas_Object *obj, void *event_info)
{
        Ephoto_Flow_Browser *ef = data;

	ef->iter = em->images;

	ef->cur_image = eina_list_data_get(ef->iter);
	_ephoto_go_update(ef);
}

/*Go to the very last image in the list*/
static void 
_ephoto_go_last(void *data, Evas_Object *obj, void *event_info)
{
	const char *file_type;
        Ephoto_Flow_Browser *ef = data;

	ef->iter = eina_list_last(em->images);
	ef->cur_image = eina_list_data_get(ef->iter);

	_ephoto_go_update(ef);
}

/*Go to the next image in the list*/
static void 
_ephoto_go_next(void *data, Evas_Object *obj, void *event_info)
{
	const char *file_type;
	Ephoto_Flow_Browser *ef = data;

	ef->iter = eina_list_next(ef->iter);
	if (!ef->iter) ef->iter = em->images;

	ef->cur_image = eina_list_data_get(ef->iter);

	_ephoto_go_update(ef);
}

/*Go to the previous image in the list*/
static void 
_ephoto_go_previous(void *data, Evas_Object *obj, void *event_info)
{
	const char *file_type;
	Ephoto_Flow_Browser *ef = data;

	ef->iter = eina_list_prev(ef->iter);
	if (!ef->iter)
		ef->iter = eina_list_last(em->images);

	ef->cur_image = eina_list_data_get(ef->iter);

	_ephoto_go_update(ef);
}

/*Go to the slideshow*/
static void
_ephoto_go_slideshow(void *data, Evas_Object *obj, void *event_info)
{   
        Ephoto_Flow_Browser *ef = data;
        // FIXME
	//ephoto_hide_flow_browser();
	ephoto_show_slideshow(1, ef->cur_image);
	elm_toolbar_item_unselect_all(ef->toolbar);
}