/*
 * Copyright 2012-2013 Samsung Electronics Co., Ltd/
 *
 * Licensed under the Flora License, Version 1.1 (the License);
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://floralicense.org/license/
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an AS IS BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */







#include <string.h>
#include "smartsearch.h"
#include "Elementary.h"

Eina_Bool __search_entry_timer_cb(void *data)
{
	SEARCH_FUNC_START;
	struct appdata *ad = (struct appdata *)data;
	SEARCH_RETV_IF(ad == NULL, ECORE_CALLBACK_CANCEL);

	search_set_result_list(ad);
	ad->search_timer = NULL;

	SEARCH_FUNC_END;
	return ECORE_CALLBACK_CANCEL;
}

void __search_searchbar_entry_changed_cb(void *data, Evas_Object * obj,
				       void *event_info)
{
	SEARCH_FUNC_START;

	struct appdata *ad = (struct appdata *)data;
	SEARCH_RET_IF(ad == NULL);

	if (elm_object_focus_get(ad->search_bar)) {
		if (elm_entry_is_empty(ad->search_entry)) {
			elm_object_signal_emit(ad->search_bar, "elm,state,eraser,hide", "elm");
		}
		else {
			elm_object_signal_emit(ad->search_bar, "elm,state,eraser,show", "elm");
		}
	} else {
		if (elm_entry_is_empty(ad->search_entry)) {
			elm_object_signal_emit(ad->search_bar, "elm,state,guidetext,show", "elm");
		}
		else {
			elm_object_signal_emit(ad->search_bar, "elm,state,guidetext,hide", "elm");
	}
	}

		/* Make timer for check user's input */
		search_stop_search(ad);

		ad->search_timer = ecore_timer_add(0.4, __search_entry_timer_cb, ad);

	SEARCH_FUNC_END;
	return;
}


static void __search_searchbar_entry_focused_cb(void *data, Evas_Object *obj, void *event_info)
{
	SEARCH_FUNC_START;

	struct appdata *ad = (struct appdata *)data;
	SEARCH_RET_IF(ad == NULL);

	if (!elm_entry_is_empty(ad->search_entry)) {
		elm_object_signal_emit(ad->search_bar, "elm,state,eraser,show", "elm");
	}

	elm_object_signal_emit(ad->search_bar, "elm,state,guidetext,hide", "elm");
	elm_object_signal_emit(ad->search_bar, "cancel,in", "");

	SEARCH_FUNC_END;
}

static void __search_searchbar_entry_unfocused_cb(void *data, Evas_Object *obj, void *event_info)
{
	SEARCH_FUNC_START;

	struct appdata *ad = (struct appdata *)data;
	SEARCH_RET_IF(ad == NULL);

	if (elm_entry_is_empty(ad->search_entry)) {
		elm_object_signal_emit(ad->search_bar, "elm,state,guidetext,show", "elm");
	}

	elm_object_signal_emit(ad->search_bar, "elm,state,eraser,hide", "elm");

	SEARCH_FUNC_END;
}

static void __search_searchbar_bg_clicked_cb(void *data, Evas_Object *obj, const char *emission, const char *source)
{
	SEARCH_FUNC_START;

	struct appdata *ad = (struct appdata *)data;
	SEARCH_RET_IF(ad == NULL);

	elm_object_focus_set(ad->search_entry, EINA_TRUE);

	SEARCH_FUNC_END;
}

static void __search_searchbar_eraser_clicked_cb(void *data, Evas_Object *obj, const char *emission, const char *source) // When X marked button is clicked, empty entry's contents.
{
	SEARCH_FUNC_START;

	struct appdata *ad = (struct appdata *)data;
	SEARCH_RET_IF(ad == NULL);

	elm_entry_entry_set(ad->search_entry, "");

	Ecore_IMF_Context *imf_context = (Ecore_IMF_Context *)elm_entry_imf_context_get(ad->search_entry);

	if (imf_context) {
		ecore_imf_context_input_panel_show(imf_context);
	}

	SEARCH_FUNC_END;
}

static void __search_searchbar_key_down_cb(void *data, Evas * e, Evas_Object * obj, void *event_info)
{
	SEARCH_FUNC_START;

	struct appdata *ad = (struct appdata *)data;
	Evas_Event_Key_Down *ev = (Evas_Event_Key_Down *) event_info;

	SEARCH_RET_IF(ad == NULL);
	SEARCH_RET_IF(ev == NULL);

	SEARCH_DEBUG_LOG("ev->key : %s", ev->key);

	if (SEARCH_STRCMP(ev->key, "Return") == 0) {
                             ecore_imf_context_input_panel_hide
			    ((Ecore_IMF_Context *)elm_entry_imf_context_get
			     (ad->search_entry));
	}

	SEARCH_FUNC_END;
}

static void __search_searchbar_cancel_clicked_cb(void *data, Evas_Object * obj,
						 void *event_info)
{
	SEARCH_FUNC_START;

	struct appdata *ad = (struct appdata *)data;
	const char* text = NULL;

	SEARCH_RET_IF(ad == NULL);

	elm_object_focus_set(ad->cate_btn, EINA_TRUE);
	evas_object_hide(ad->search_cancel_btn);
	elm_object_signal_emit(ad->search_bar, "cancel,out", "");
	text = elm_entry_entry_get(ad->search_entry);

	if (text != NULL && strlen(text) > 0)
		elm_entry_entry_set(ad->search_entry, NULL);

	elm_object_signal_emit(ad->search_bar, "elm,state,eraser,hide", "elm");

	search_set_result_list(ad);

	malloc_trim(0);

	SEARCH_FUNC_END;
}

static void __search_searchbar_gl_drag_scroll_start_cb(void *data, Evas_Object * obj, void *event_info)
{
	SEARCH_FUNC_START;

	struct appdata *ad = (struct appdata *)data;

	Ecore_IMF_Context *imf_context = (Ecore_IMF_Context *)elm_entry_imf_context_get(ad->search_entry);

	if (imf_context) {
		ecore_imf_context_input_panel_hide(imf_context);
	}

	SEARCH_FUNC_END;
}


static void
__search_searchbar_state_event_cb(void *data, Ecore_IMF_Context *imf_context, int value)
{
	SEARCH_FUNC_START;

	struct appdata *ad = (struct appdata *)data;

	switch (value)
	{
		case ECORE_IMF_INPUT_PANEL_STATE_SHOW:
			evas_object_smart_callback_add(
					ad->search_gl,
					"scroll,drag,start",
					__search_searchbar_gl_drag_scroll_start_cb,
					data);
		break;
		case ECORE_IMF_INPUT_PANEL_STATE_HIDE:
			/* ISE state has changed to ISE_STATE_HIDE status */
			evas_object_smart_callback_del(
					ad->search_gl,
					"scroll,drag,start",
					__search_searchbar_gl_drag_scroll_start_cb);
		break;
	}

	SEARCH_FUNC_END;
}

Evas_Object *__search_init_noresult_view(Evas_Object* parent)
{
	SEARCH_FUNC_START;

	Evas_Object *noc = NULL;

	noc = elm_layout_add(parent);
	elm_layout_theme_set(noc, "layout", "nocontents", "search");
	elm_object_part_text_set(noc, "elm.text", dgettext("sys_string", "IDS_COM_BODY_NO_SEARCH_RESULTS"));
	elm_object_focus_allow_set(noc, EINA_TRUE);

	SEARCH_FUNC_END;

	return noc;
}

Evas_Object *search_category_custom_layout_add(Evas_Object *parent)
{
	SEARCH_FUNC_START;

	Evas_Object *layout = NULL;
	layout = elm_layout_add(parent);
	elm_layout_file_set(layout, SEARCH_EDJ, "smartsearch/custom_image_button");
        evas_object_size_hint_weight_set(layout, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
        evas_object_size_hint_align_set(layout, 0.5, 0.5);
	evas_object_show(layout);

	SEARCH_FUNC_END;
	return layout;
}

Evas_Object *search_category_image_add(char* imgpath, Evas_Object *parent, int width, int height, bool resize)
{
	SEARCH_FUNC_START;

	char buf[MAX_LENGTH_PER_PATH] = { 0, };
	Evas_Object *image = NULL;

	image = elm_image_add(parent);
	elm_image_resizable_set(image,1,1);
	snprintf(buf, sizeof(buf), SEARCH_ICON_PATH "%s", imgpath);
	elm_image_file_set(image, buf, NULL);
	evas_object_show(image);

	SEARCH_FUNC_END;
	return image;
}

Evas_Object *search_searchbar_category_icon_add(char* img, Evas_Object *parent, int width, int height, bool resize)
{
	SEARCH_FUNC_START;

	char buf[MAX_LENGTH_PER_PATH] = { 0, };
	Evas_Object* cate_icon = NULL;
	double scale = elm_config_scale_get();

	if (img != NULL ) {
		cate_icon = elm_icon_add(parent);

		snprintf(buf, sizeof(buf), SEARCH_ICON_PATH "%s", img);

		SEARCH_DEBUG_LOG("buf : %s", buf);

		elm_image_file_set(cate_icon, buf, NULL);

		evas_object_size_hint_aspect_set(cate_icon, EVAS_ASPECT_CONTROL_VERTICAL, 1, 1);

		if (resize != false) {
			elm_image_resizable_set(cate_icon, EINA_TRUE, EINA_TRUE);
		} else {
			elm_image_resizable_set(cate_icon, EINA_FALSE, EINA_FALSE);
		}

		evas_object_size_hint_min_set(cate_icon, width * scale, height * scale);
		evas_object_size_hint_max_set(cate_icon, width * scale, height * scale);
	}

	SEARCH_FUNC_END;

	return cate_icon;
}


void search_delete_searchbar(void *data)
{
	SEARCH_FUNC_START;

	struct appdata *ad = (struct appdata *)data;

	if (ad->search_bar) {
		elm_object_signal_callback_del(
								ad->search_bar,
								"elm,bg,clicked",
								"elm",
								__search_searchbar_bg_clicked_cb);
		elm_object_signal_callback_del(
								ad->search_bar,
								"elm,eraser,clicked",
								"elm",
								__search_searchbar_eraser_clicked_cb);

		evas_object_del(ad->search_bar);
		ad->search_bar = NULL;
	}

	if (ad->search_entry) {
		evas_object_smart_callback_del(
								ad->search_entry,
								"changed",
								__search_searchbar_entry_changed_cb);
		evas_object_smart_callback_del(
								ad->search_entry,
								"preedit,changed",
								__search_searchbar_entry_changed_cb);
		evas_object_smart_callback_del(
								ad->search_entry,
								"focused",
								__search_searchbar_entry_focused_cb);
		evas_object_smart_callback_del(
								ad->search_entry,
								"unfocused",
								__search_searchbar_entry_unfocused_cb);

		evas_object_del(ad->search_entry);
		ad->search_entry = NULL;
	}

	if (ad->search_cancel_btn) {
		evas_object_smart_callback_del(
								ad->search_cancel_btn,
								"clicked",
					       __search_searchbar_cancel_clicked_cb);
		evas_object_del(ad->search_cancel_btn);
		ad->search_cancel_btn = NULL;
	}

	if (ad->cate_btn) {
		evas_object_del(ad->cate_btn);
		ad->cate_btn = NULL;
	}

	if (ad->sb_layout) {
		elm_object_part_content_unset(ad->sb_layout, "list");
		evas_object_del(ad->sb_layout);
	}

	SEARCH_EVAS_OBJECT_FREE(ad->noresult_view);
	SEARCH_EVAS_OBJECT_FREE(ad->search_gl);

	SEARCH_FUNC_END;
}

void search_create_searchbar_layout(Evas_Object *parent, void *data)
{
	SEARCH_FUNC_START;

	Evas_Object *genlist = NULL;
	struct appdata *ad = (struct appdata *)data;

	SEARCH_RET_IF(ad == NULL);

	ad->sb_layout = search_create_layout(parent,
						SEARCH_EDJ,
						SEARCH_SEARCHBAR_GROUP_NORMAL);

	SEARCH_RET_IF(ad->sb_layout == NULL);

	// Category button
	ad->cate_btn = search_create_category_button(ad->sb_layout, ad);

	SEARCH_RET_IF(ad->cate_btn == NULL);
	elm_object_part_content_set(ad->sb_layout,
		"searchbar_area_category", ad->cate_btn);

	// Search bar
	ad->search_bar = search_create_search_bar(ad->sb_layout);
	SEARCH_RET_IF(ad->search_bar == NULL);
	elm_object_signal_callback_add(ad->search_bar, "elm,bg,clicked",
		"elm", __search_searchbar_bg_clicked_cb, ad);
	elm_object_signal_callback_add(ad->search_bar, "elm,eraser,clicked",
		"elm", __search_searchbar_eraser_clicked_cb, ad);
	elm_object_part_content_set(ad->sb_layout, "searchbar_area_entry",
		ad->search_bar);

	// Search entry
	ad->search_entry = search_create_search_entry(ad->sb_layout, ad);
	SEARCH_RET_IF(ad->search_entry == NULL);
	elm_object_part_content_set(ad->search_bar,
		"elm.swallow.content", ad->search_entry);
	evas_object_smart_callback_add(ad->search_entry, "changed",
		__search_searchbar_entry_changed_cb, ad);
	evas_object_smart_callback_add(ad->search_entry, "preedit,changed",
		__search_searchbar_entry_changed_cb, ad);
	evas_object_smart_callback_add(ad->search_entry, "focused",
		__search_searchbar_entry_focused_cb, ad);
	evas_object_smart_callback_add(ad->search_entry, "unfocused",
		__search_searchbar_entry_unfocused_cb, ad);
	evas_object_event_callback_add(ad->search_entry, EVAS_CALLBACK_KEY_DOWN,
		__search_searchbar_key_down_cb, ad);

	// Search Cancel button
	ad->search_cancel_btn = search_create_search_cancel_btn(ad->sb_layout);
	SEARCH_RET_IF(ad->search_cancel_btn == NULL);
	evas_object_smart_callback_add(ad->search_cancel_btn, "clicked",
		__search_searchbar_cancel_clicked_cb,ad);
	elm_object_part_content_set(ad->search_bar,
		"button_cancel", ad->search_cancel_btn);

	// Genlist
	genlist = elm_genlist_add(ad->sb_layout);

	// To use multiline textblock/entry/editfield in genlist, set height_for_width mode
	// then the item's height is calculated while the item's width fits to genlist width.
	elm_genlist_mode_set(genlist, ELM_LIST_COMPRESS);
	elm_genlist_tree_effect_enabled_set(genlist, EINA_TRUE);
	evas_object_size_hint_weight_set(genlist, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
	evas_object_size_hint_align_set(genlist, EVAS_HINT_FILL, EVAS_HINT_FILL);
	ad->search_gl = genlist;

	// Result area
	ad->noresult_view = __search_init_noresult_view(ad->sb_layout);

	SEARCH_RET_IF(ad->noresult_view == NULL);
	elm_object_part_content_set(ad->sb_layout, "list_noresult",
		ad->noresult_view);


	SEARCH_FUNC_END;
}

Evas_Object *search_create_layout(Evas_Object *parent, const char *file, const char *group)
{
	SEARCH_FUNC_START;
	Evas_Object *layout = NULL;

	/* create layout */
	layout = elm_layout_add(parent);

	SEARCH_RETV_IF(layout == NULL, NULL);

	elm_layout_file_set(layout, file, group);

	SEARCH_FUNC_END;
	return layout;
}

Evas_Object *search_create_category_button(Evas_Object *parent, void *data)
{
	SEARCH_FUNC_START;
	struct appdata *ad = (struct appdata *)data;

	Evas_Object *cate_btn;
	Evas_Object *cate_icon;

	int err = 0;
	char *imgpath = NULL;
	int category = 0;

	/* set search category icon area */

	category = SEARCH_CATE_PHONE;
	ad->search_category = category;

	imgpath = ad->category_info[ad->search_category].btn_icon_path;
	cate_icon = search_searchbar_category_icon_add(imgpath,
		parent,
		SEARCH_CATEGORY_BTN_ICON_SIZE_WIDTH,
		SEARCH_CATEGORY_BTN_ICON_SIZE_HEIGHT,
		false);

	cate_btn = elm_button_add(parent);

	SEARCH_RETV_IF(cate_btn == NULL, NULL);

	elm_object_style_set(cate_btn, "circle/empty");
	ad->cate_btn = cate_btn;

	elm_object_content_set(ad->cate_btn, cate_icon);
	evas_object_show(cate_btn);

	SEARCH_FUNC_END;
	return cate_btn;
}

Evas_Object *search_create_search_bar(Evas_Object *parent)
{
	SEARCH_FUNC_START;

	Evas_Object *layout = NULL;

	layout = elm_layout_add(parent);
	elm_layout_theme_set(layout, "layout", "searchbar", "cancel_button");
	elm_object_part_text_set(layout, "elm.guidetext",
		dgettext("sys_string", "IDS_COM_BODY_SEARCH"));
	evas_object_size_hint_weight_set(layout, EVAS_HINT_EXPAND,
		EVAS_HINT_EXPAND);
	evas_object_show(layout);

	SEARCH_FUNC_END;
	return layout;
}

Evas_Object *search_create_search_cancel_btn(Evas_Object *parent)
{
	SEARCH_FUNC_START;
	Evas_Object *cancel_btn = NULL;

	cancel_btn = elm_button_add(parent);
	elm_object_style_set(cancel_btn, "searchbar/default");
	elm_object_text_set(cancel_btn, dgettext("sys_string", "IDS_COM_SK_CANCEL"));

	SEARCH_FUNC_END;
	return cancel_btn;
}

Evas_Object *search_create_search_entry(Evas_Object *parent, void *data)
{
	SEARCH_FUNC_START;

	struct appdata *ad = (struct appdata *)data;
	Evas_Object *entry = NULL;

	SEARCH_RETV_IF(ad == NULL, NULL);

	entry = elm_entry_add(parent);

	elm_entry_scrollable_set(entry, EINA_TRUE);
	elm_entry_single_line_set(entry, EINA_TRUE);

	elm_entry_cnp_mode_set(entry, ELM_CNP_MODE_PLAINTEXT);
	elm_entry_input_panel_layout_set(entry, ELM_INPUT_PANEL_LAYOUT_NORMAL);
	elm_entry_prediction_allow_set(entry, EINA_FALSE);
	elm_entry_autocapital_type_set(entry, ELM_AUTOCAPITAL_TYPE_NONE);
	elm_entry_input_panel_return_key_type_set(entry, ELM_INPUT_PANEL_RETURN_KEY_TYPE_SEARCH);

	Ecore_IMF_Context *imf_context = (Ecore_IMF_Context *)elm_entry_imf_context_get(entry);
	ecore_imf_context_input_panel_event_callback_add(imf_context,
							 ECORE_IMF_INPUT_PANEL_STATE_EVENT,
							 __search_searchbar_state_event_cb,
							ad);
	SEARCH_FUNC_END;
	return entry;
}