/*************************************************************************/
/*  asset_library_editor_plugin.cpp                                      */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur.                 */
/*                                                                       */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
/* without limitation the rights to use, copy, modify, merge, publish,   */
/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions:                                             */
/*                                                                       */
/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
/*                                                                       */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
/*************************************************************************/
#include "asset_library_editor_plugin.h"
#include "editor_node.h"
#include "editor_settings.h"




void EditorAssetLibraryItem::configure(const String& p_title,int p_asset_id,const String& p_category,int p_category_id,const String& p_author,int p_author_id,int p_rating,const String& p_cost) {

	title->set_text(p_title);
	asset_id=p_asset_id;
	category->set_text(p_category);
	category_id=p_category_id;
	author->set_text(p_author);
	author_id=p_author_id;
	price->set_text(p_cost);

	for(int i=0;i<5;i++) {
		if (i<p_rating)
			stars[i]->set_texture(get_icon("RatingStar","EditorIcons"));
		else
			stars[i]->set_texture(get_icon("RatingNoStar","EditorIcons"));
	}


}

void EditorAssetLibraryItem::set_image(int p_type,int p_index,const Ref<Texture>& p_image) {

	ERR_FAIL_COND(p_type!=EditorAssetLibrary::IMAGE_QUEUE_ICON);
	ERR_FAIL_COND(p_index!=0);

	icon->set_normal_texture(p_image);
}

void EditorAssetLibraryItem::_notification(int p_what) {

	if (p_what==NOTIFICATION_ENTER_TREE) {

		icon->set_normal_texture(get_icon("GodotAssetDefault","EditorIcons"));
		category->add_color_override("font_color", Color(0.5,0.5,0.5) );
		author->add_color_override("font_color", Color(0.5,0.5,0.5) );

	}
}

void EditorAssetLibraryItem::_asset_clicked() {

	emit_signal("asset_selected",asset_id);
}

void EditorAssetLibraryItem::_category_clicked(){

	emit_signal("category_selected",category_id);
}
void EditorAssetLibraryItem::_author_clicked(){

	emit_signal("author_selected",author_id);

}

void EditorAssetLibraryItem::_bind_methods() {

	ObjectTypeDB::bind_method("set_image",&EditorAssetLibraryItem::set_image);
	ObjectTypeDB::bind_method("_asset_clicked",&EditorAssetLibraryItem::_asset_clicked);
	ObjectTypeDB::bind_method("_category_clicked",&EditorAssetLibraryItem::_category_clicked);
	ObjectTypeDB::bind_method("_author_clicked",&EditorAssetLibraryItem::_author_clicked);
	ADD_SIGNAL( MethodInfo("asset_selected"));
	ADD_SIGNAL( MethodInfo("category_selected"));
	ADD_SIGNAL( MethodInfo("author_selected"));


}

EditorAssetLibraryItem::EditorAssetLibraryItem() {

	Ref<StyleBoxEmpty> border;
	border.instance();
	/*border->set_default_margin(MARGIN_LEFT,5);
	border->set_default_margin(MARGIN_RIGHT,5);
	border->set_default_margin(MARGIN_BOTTOM,5);
	border->set_default_margin(MARGIN_TOP,5);*/
	add_style_override("panel",border);

	HBoxContainer *hb = memnew( HBoxContainer );
	add_child(hb);

	icon = memnew( TextureButton );
	icon->set_default_cursor_shape(CURSOR_POINTING_HAND);
	icon->connect("pressed",this,"_asset_clicked");

	hb->add_child(icon);

	VBoxContainer *vb = memnew( VBoxContainer );

	hb->add_child(vb);
	vb->set_h_size_flags(SIZE_EXPAND_FILL);

	title = memnew( LinkButton );
	title->set_text("My Awesome Addon");
	title->set_underline_mode(LinkButton::UNDERLINE_MODE_ON_HOVER);
	title->connect("pressed",this,"_asset_clicked");
	vb->add_child(title);


	category = memnew( LinkButton );
	category->set_text("Editor Tools");
	category->set_underline_mode(LinkButton::UNDERLINE_MODE_ON_HOVER);
	title->connect("pressed",this,"_category_clicked");
	vb->add_child(category);

	author = memnew( LinkButton );
	author->set_text("Johny Tolengo");
	author->set_underline_mode(LinkButton::UNDERLINE_MODE_ON_HOVER);
	title->connect("pressed",this,"_author_clicked");
	vb->add_child(author);

	HBoxContainer *rating_hb = memnew( HBoxContainer );
	vb->add_child(rating_hb);

	for(int i=0;i<5;i++) {
		stars[i]=memnew(TextureFrame);
		rating_hb->add_child(stars[i]);
	}
	price = memnew( Label );
	price->set_text("Free");
	vb->add_child(price);

	set_custom_minimum_size(Size2(250,100));
	set_h_size_flags(SIZE_EXPAND_FILL);

	set_stop_mouse(false);
}

//////////////////////////////////////////////////////////////////////////////


void EditorAssetLibraryItemDescription::set_image(int p_type,int p_index,const Ref<Texture>& p_image) {

	switch(p_type) {

		case EditorAssetLibrary::IMAGE_QUEUE_ICON: {

			item->call("set_image",p_type,p_index,p_image);
			icon=p_image;
		} break;
		case EditorAssetLibrary::IMAGE_QUEUE_THUMBNAIL: {

			for(int i=0;i<preview_images.size();i++) {
				if (preview_images[i].id==p_index) {
					preview_images[i].button->set_icon(p_image);
					break;
				}
			}
			//item->call("set_image",p_type,p_index,p_image);
		} break;
		case EditorAssetLibrary::IMAGE_QUEUE_SCREENSHOT: {

			for(int i=0;i<preview_images.size();i++) {
				if (preview_images[i].id==p_index) {
					preview_images[i].image = p_image;
					if(preview_images[i].button->is_pressed()) {
						_preview_click(p_index);
					}
					break;
				}
			}
			//item->call("set_image",p_type,p_index,p_image);
		} break;
	}
}

void EditorAssetLibraryItemDescription::_bind_methods() {
	ObjectTypeDB::bind_method(_MD("set_image"),&EditorAssetLibraryItemDescription::set_image);
	ObjectTypeDB::bind_method(_MD("_link_click"),&EditorAssetLibraryItemDescription::_link_click);
	ObjectTypeDB::bind_method(_MD("_preview_click"),&EditorAssetLibraryItemDescription::_preview_click);

}

void EditorAssetLibraryItemDescription::_link_click(const String& p_url) {
	ERR_FAIL_COND(!p_url.begins_with("http"));
	OS::get_singleton()->shell_open(p_url);
}

void EditorAssetLibraryItemDescription::_preview_click(int p_id) {
	for(int i=0;i<preview_images.size();i++) {
		if(preview_images[i].id==p_id) {
			preview_images[i].button->set_pressed(true);
			if(!preview_images[i].is_video) {
				if(preview_images[i].image.is_valid()) {
					preview->set_texture(preview_images[i].image);
				}
			} else {
				_link_click(preview_images[i].video_link);
			}
		} else {
			preview_images[i].button->set_pressed(false);
		}
	}
}

void EditorAssetLibraryItemDescription::configure(const String& p_title,int p_asset_id,const String& p_category,int p_category_id,const String& p_author,int p_author_id,int p_rating,const String& p_cost,int p_version,const String& p_version_string,const String& p_description,const String& p_download_url,const String& p_browse_url,const String& p_sha256_hash) {

	asset_id=p_asset_id;
	title=p_title;
	download_url=p_download_url;
	sha256=p_sha256_hash;
	item->configure(p_title,p_asset_id,p_category,p_category_id,p_author,p_author_id,p_rating,p_cost);
	description->clear();
	description->add_text("Version: "+p_version_string+"\n");
	description->add_text("Contents: ");
	description->push_meta(p_browse_url);
	description->add_text("View Files");
	description->pop();
	description->add_text("\nDescription:\n\n");
	description->append_bbcode(p_description); 
	set_title(p_title);
}

void EditorAssetLibraryItemDescription::add_preview(int p_id, bool p_video,const String& p_url){

	Preview preview;
	preview.id=p_id;
	preview.video_link=p_url;
	preview.is_video=p_video;
	preview.button = memnew( Button );
	preview.button->set_flat(true);
	preview.button->set_icon(get_icon("ThumbnailWait","EditorIcons"));
	preview.button->set_toggle_mode(true);
	preview.button->connect("pressed", this, "_preview_click", varray(p_id));
	preview_hb->add_child(preview.button);
	if(!p_video) {
		preview.image=get_icon("ThumbnailWait","EditorIcons");
	}
	if(preview_images.size()==0 && !p_video) {
		_preview_click(p_id);
	}
	preview_images.push_back(preview);
}

EditorAssetLibraryItemDescription::EditorAssetLibraryItemDescription() {

	VBoxContainer *vbox = memnew( VBoxContainer );
	add_child(vbox);
	set_child_rect(vbox);


	HBoxContainer *hbox = memnew( HBoxContainer);
	vbox->add_child(hbox);
	vbox->add_constant_override("separation",15);
	VBoxContainer *desc_vbox = memnew( VBoxContainer );
	hbox->add_child(desc_vbox);
	hbox->add_constant_override("separation",15);

	item = memnew( EditorAssetLibraryItem );

	desc_vbox->add_child(item);
	desc_vbox->set_custom_minimum_size(Size2(300,0));


	PanelContainer * desc_bg = memnew( PanelContainer );
	desc_vbox->add_child(desc_bg);
	desc_bg->set_v_size_flags(SIZE_EXPAND_FILL);

	description = memnew( RichTextLabel );
	description->connect("meta_clicked",this,"_link_click");
	//desc_vbox->add_child(description);
	desc_bg->add_child(description);
	desc_bg->add_style_override("panel",get_stylebox("normal","TextEdit"));

	preview = memnew( TextureFrame );
	preview->set_custom_minimum_size(Size2(640,345));
	hbox->add_child(preview);

	PanelContainer * previews_bg = memnew( PanelContainer );
	vbox->add_child(previews_bg);
	previews_bg->set_custom_minimum_size(Size2(0,85));
	previews_bg->add_style_override("panel",get_stylebox("normal","TextEdit"));

	previews = memnew( ScrollContainer );
	previews_bg->add_child(previews);
	previews->set_enable_v_scroll(false);
	previews->set_enable_h_scroll(true);
	preview_hb = memnew( HBoxContainer );
	preview_hb->set_v_size_flags(SIZE_EXPAND_FILL);

	previews->add_child(preview_hb);
	get_ok()->set_text("Install");
	get_cancel()->set_text("Close");



}
///////////////////////////////////////////////////////////////////////////////////

void EditorAssetLibraryItemDownload::_http_download_completed(int p_status, int p_code, const StringArray& headers, const ByteArray& p_data) {


	String error_text;

	switch(p_status) {

		case HTTPRequest::RESULT_CANT_RESOLVE: {
			error_text=("Can't resolve hostname: "+host);
			status->set_text("Can't resolve.");
		} break;
		case HTTPRequest::RESULT_BODY_SIZE_LIMIT_EXCEEDED:
		case HTTPRequest::RESULT_CONNECTION_ERROR:
		case HTTPRequest::RESULT_CHUNKED_BODY_SIZE_MISMATCH: {
			error_text=("Connection error, please try again.");
			status->set_text("Can't connect.");
		} break;
		case HTTPRequest::RESULT_SSL_HANDSHAKE_ERROR:
		case HTTPRequest::RESULT_CANT_CONNECT: {
			error_text=("Can't connect to host: "+host);
			status->set_text("Can't connect.");
		} break;
		case HTTPRequest::RESULT_NO_RESPONSE: {
			error_text=("No response from host: "+host);
			status->set_text("No response.");
		} break;
		case HTTPRequest::RESULT_REQUEST_FAILED: {
			error_text=("Request failed, return code: "+itos(p_code));
			status->set_text("Req. Failed.");
		} break;
		case HTTPRequest::RESULT_REDIRECT_LIMIT_REACHED: {
			error_text=("Request failed, too many redirects");
			status->set_text("Redirect Loop.");
		} break;
		default: {
			if (p_code!=200) {
				error_text=("Request failed, return code: "+itos(p_code));
				status->set_text("Failed: "+itos(p_code));
			} else if(sha256 != "") {
				String download_sha256 = FileAccess::get_sha256(download->get_download_file());
				if(sha256 != download_sha256) {
					error_text="Bad download hash, assuming file has been tampered with.\nExpected: " + sha256 + "\nGot: " + download_sha256;
					status->set_text("Failed sha256 hash check");
				}
			}
		} break;

	}

	if (error_text!=String()) {
		download_error->set_text("Asset Download Error:\n"+error_text);
		download_error->popup_centered_minsize();
		return;

	}

	progress->set_max( download->get_body_size() );
	progress->set_val(download->get_downloaded_bytes());

	print_line("max: "+itos(download->get_body_size())+" bytes: "+itos(download->get_downloaded_bytes()));
	install->set_disabled(false);

	status->set_text("Success!");
	set_process(false);
}


void EditorAssetLibraryItemDownload::configure(const String& p_title,int p_asset_id,const Ref<Texture>& p_preview, const String& p_download_url, const String& p_sha256_hash) {

	title->set_text(p_title);
	icon->set_texture(p_preview);
	asset_id=p_asset_id;
	if (!p_preview.is_valid())
		icon->set_texture(get_icon("GodotAssetDefault","EditorIcons"));
	host=p_download_url;
	sha256=p_sha256_hash;
	asset_installer->connect("confirmed",this,"_close");
	dismiss->set_normal_texture( get_icon("Close","EditorIcons"));
	_make_request();
}


void EditorAssetLibraryItemDownload::_notification(int p_what) {

	if (p_what==NOTIFICATION_PROCESS) {

		progress->set_max( download->get_body_size() );
		progress->set_val(download->get_downloaded_bytes());

		int cstatus = download->get_http_client_status();
		if (cstatus!=prev_status) {
			switch(cstatus) {

				case HTTPClient::STATUS_RESOLVING: {
					status->set_text("Resolving..");
				} break;
				case HTTPClient::STATUS_CONNECTING: {
					status->set_text("Connecting..");
				} break;
				case HTTPClient::STATUS_REQUESTING: {
					status->set_text("Requesting..");
				} break;
				case HTTPClient::STATUS_BODY: {
					status->set_text("Downloading..");
				} break;
				default: {}
			}
			prev_status=cstatus;
		}

	}
}
void EditorAssetLibraryItemDownload::_close() {

	DirAccess *da = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
	da->remove(download->get_download_file()); //clean up removed file
	memdelete(da);
	queue_delete();
}

void EditorAssetLibraryItemDownload::_install() {

	String file = download->get_download_file();
	asset_installer->open(file,1);
}

void EditorAssetLibraryItemDownload::_make_request() {
	download->cancel_request();
	download->set_download_file(EditorSettings::get_singleton()->get_settings_path().plus_file("tmp").plus_file("tmp_asset_"+itos(asset_id))+".zip");
	Error err = download->request(host);
	if(err!=OK) {
		status->set_text("Error making request");
	} else {
		set_process(true);
	}
}

void EditorAssetLibraryItemDownload::_bind_methods() {

	ObjectTypeDB::bind_method("_http_download_completed",&EditorAssetLibraryItemDownload::_http_download_completed);
	ObjectTypeDB::bind_method("_install",&EditorAssetLibraryItemDownload::_install);
	ObjectTypeDB::bind_method("_close",&EditorAssetLibraryItemDownload::_close);
	ObjectTypeDB::bind_method("_make_request",&EditorAssetLibraryItemDownload::_make_request);

}

EditorAssetLibraryItemDownload::EditorAssetLibraryItemDownload() {

	HBoxContainer *hb = memnew( HBoxContainer);
	add_child(hb);
	icon = memnew( TextureFrame );
	hb->add_child(icon);

	VBoxContainer *vb = memnew( VBoxContainer );
	hb->add_child(vb);
	vb->set_h_size_flags(SIZE_EXPAND_FILL);

	HBoxContainer *title_hb = memnew( HBoxContainer);
	vb->add_child(title_hb);
	title = memnew( Label );
	title_hb->add_child(title);
	title->set_h_size_flags(SIZE_EXPAND_FILL);

	dismiss = memnew( TextureButton );
	dismiss->connect("pressed",this,"_close");
	title_hb->add_child(dismiss);

	title->set_clip_text(true);

	vb->add_spacer();

	status = memnew (Label("Idle"));
	vb->add_child(status);
	status->add_color_override("font_color", Color(0.5,0.5,0.5) );
	progress = memnew( ProgressBar );
	vb->add_child(progress);



	HBoxContainer *hb2 = memnew( HBoxContainer );
	vb->add_child(hb2);
	hb2->add_spacer();

	install = memnew( Button );
	install->set_text("Install");
	install->set_disabled(true);
	install->connect("pressed",this,"_install");

	retry = memnew( Button );
	retry->set_text("Retry");
	retry->connect("pressed",this,"_make_request");

	hb2->add_child(retry);
	hb2->add_child(install);
	set_custom_minimum_size(Size2(250,0));

	download = memnew( HTTPRequest );
	add_child(download);
	download->connect("request_completed",this,"_http_download_completed");

	download_error = memnew( AcceptDialog );
	add_child(download_error);
	download_error->set_title("Download Error");

	asset_installer = memnew( EditorAssetInstaller );
	add_child(asset_installer);

	prev_status=-1;


}



////////////////////////////////////////////////////////////////////////////////
void EditorAssetLibrary::_notification(int p_what) {

	if (p_what==NOTIFICATION_READY) {
		TextureFrame *tf = memnew(TextureFrame);
		tf->set_texture(get_icon("Error","EditorIcons"));
		reverse->set_icon(get_icon("Updown","EditorIcons"));

		error_hb->add_child(tf);
		error_label->raise();
	}

	if (p_what==NOTIFICATION_VISIBILITY_CHANGED) {
		if(!is_hidden()) {
			_repository_changed(0); // Update when shown for the first time
		}
	}

	if (p_what==NOTIFICATION_PROCESS) {

		HTTPClient::Status s = request->get_http_client_status();
		bool visible = s!=HTTPClient::STATUS_DISCONNECTED;

		if (visible != !load_status->is_hidden()) {
			load_status->set_hidden(!visible);
		}

		if (visible) {
			switch(s) {

				case HTTPClient::STATUS_RESOLVING: {
					load_status->set_val(0.1);
				} break;
				case HTTPClient::STATUS_CONNECTING: {
					load_status->set_val(0.2);
				} break;
				case HTTPClient::STATUS_REQUESTING: {
					load_status->set_val(0.3);
				} break;
				case HTTPClient::STATUS_BODY: {
					load_status->set_val(0.4);
				} break;
				default: {}

			}
		}

		bool no_downloads = downloads_hb->get_child_count()==0;
		if (no_downloads != downloads_scroll->is_hidden()) {
			downloads_scroll->set_hidden(no_downloads);
		}
	}

}


void EditorAssetLibrary::_install_asset() {

	ERR_FAIL_COND(!description);

	for(int i=0;i<downloads_hb->get_child_count();i++) {

		EditorAssetLibraryItemDownload *d  = downloads_hb->get_child(i)->cast_to<EditorAssetLibraryItemDownload>();
		if (d && d->get_asset_id() == description->get_asset_id()) {

			EditorNode::get_singleton()->show_warning("Download for this asset is already in progress!");
			return;
		}
	}


	EditorAssetLibraryItemDownload * download = memnew( EditorAssetLibraryItemDownload );
	downloads_hb->add_child(download);
	download->configure(description->get_title(),description->get_asset_id(),description->get_preview_icon(),description->get_download_url(),description->get_sha256());

}

const char* EditorAssetLibrary::sort_key[SORT_MAX]={
	"rating",
	"downloads",
	"name",
	"cost",
	"updated"
};

const char* EditorAssetLibrary::sort_text[SORT_MAX]={
	"Rating",
	"Downloads",
	"Name",
	"Cost",
	"Updated"
};

const char* EditorAssetLibrary::support_key[SUPPORT_MAX]={
	"official",
	"community",
	"testing"
};


void EditorAssetLibrary::_select_author(int p_id) {

	//opemn author window
}

void EditorAssetLibrary::_select_category(int p_id){

	for(int i=0;i<categories->get_item_count();i++) {

		if (i==0)
			continue;
		int id = categories->get_item_metadata(i);
		if (id==p_id) {
			categories->select(i);
			_search();
			break;
		}
	}
}
void EditorAssetLibrary::_select_asset(int p_id){

	_api_request("asset/"+itos(p_id), REQUESTING_ASSET);

	/*
	if (description) {
		memdelete(description);
	}


	description = memnew( EditorAssetLibraryItemDescription );
	add_child(description);
	description->popup_centered_minsize();*/
}

void EditorAssetLibrary::_image_update(bool use_cache, bool final, const ByteArray& p_data, int p_queue_id) {
	Object *obj = ObjectDB::get_instance(image_queue[p_queue_id].target);

	if (obj) {
		bool image_set = false;
		ByteArray image_data = p_data;
		
		if(use_cache) {
			String cache_filename_base = EditorSettings::get_singleton()->get_settings_path().plus_file("tmp").plus_file("assetimage_"+image_queue[p_queue_id].image_url.md5_text());
			
			FileAccess* file = FileAccess::open(cache_filename_base+".data", FileAccess::READ);
			
			if(file) {
				ByteArray cached_data;
				int len=file->get_32();
				cached_data.resize(len);
				
				ByteArray::Write w=cached_data.write();
				file->get_buffer(w.ptr(), len);
				
				image_data = cached_data;
				file->close();
			}
		}
		
		int len=image_data.size();
		ByteArray::Read r=image_data.read();
		Image image(r.ptr(),len);
		if (!image.empty()) {
			float max_height = 10000;
			switch(image_queue[p_queue_id].image_type) {
				case IMAGE_QUEUE_ICON: max_height=80; break;
				case IMAGE_QUEUE_THUMBNAIL: max_height=80; break;
				case IMAGE_QUEUE_SCREENSHOT: max_height=345; break;
			}
			float scale_ratio = max_height / image.get_height();
			if(scale_ratio < 1) {
				image.resize(image.get_width() * scale_ratio, image.get_height() * scale_ratio, Image::INTERPOLATE_CUBIC);
			}

			Ref<ImageTexture> tex;
			tex.instance();
			tex->create_from_image(image);

			obj->call("set_image",image_queue[p_queue_id].image_type,image_queue[p_queue_id].image_index,tex);
			image_set = true;
		}
		
		if(!image_set && final) {
			obj->call("set_image",image_queue[p_queue_id].image_type,image_queue[p_queue_id].image_index,get_icon("ErrorSign","EditorIcons"));
		}
	}
}

void EditorAssetLibrary::_image_request_completed(int p_status, int p_code, const StringArray& headers, const ByteArray& p_data,int p_queue_id) {

	ERR_FAIL_COND( !image_queue.has(p_queue_id) );

	if (p_status==HTTPRequest::RESULT_SUCCESS) {
		
		print_line("GOT IMAGE YAY!");
		
		if(p_code != HTTPClient::RESPONSE_NOT_MODIFIED) {
			for(int i=0;i<headers.size();i++) {
				if (headers[i].findn("ETag:")==0) { // Save etag
					String cache_filename_base = EditorSettings::get_singleton()->get_settings_path().plus_file("tmp").plus_file("assetimage_"+image_queue[p_queue_id].image_url.md5_text());
					String new_etag = headers[i].substr(headers[i].find(":")+1,headers[i].length()).strip_edges();
					FileAccess* file;
					
					file = FileAccess::open(cache_filename_base+".etag", FileAccess::WRITE);
					if(file) {
						file->store_line(new_etag);
						file->close();
					}
					
					int len=p_data.size();
					ByteArray::Read r=p_data.read();
					file = FileAccess::open(cache_filename_base+".data", FileAccess::WRITE);
					if(file) {
						file->store_32(len);
						file->store_buffer(r.ptr(),len);
						file->close();
					}
					
					break;
				}
			}
		}
		_image_update(p_code == HTTPClient::RESPONSE_NOT_MODIFIED, true, p_data, p_queue_id);
		
	} else {
		WARN_PRINTS("Error getting PNG file for asset id "+itos(image_queue[p_queue_id].asset_id));
		Object *obj = ObjectDB::get_instance(image_queue[p_queue_id].target);
		if (obj) {
			obj->call("set_image",image_queue[p_queue_id].image_type,image_queue[p_queue_id].image_index,get_icon("ErrorSign","EditorIcons"));
		}
	}

	image_queue[p_queue_id].request->queue_delete();;
	image_queue.erase(p_queue_id);

	_update_image_queue();

}

void EditorAssetLibrary::_update_image_queue() {

	int max_images=2;
	int current_images=0;

	List<int> to_delete;
	for (Map<int,ImageQueue>::Element *E=image_queue.front();E;E=E->next()) {
		if (!E->get().active && current_images<max_images) {
			
			String cache_filename_base = EditorSettings::get_singleton()->get_settings_path().plus_file("tmp").plus_file("assetimage_"+E->get().image_url.md5_text());
			Vector<String> headers;
			
			if(FileAccess::exists(cache_filename_base+".etag") && FileAccess::exists(cache_filename_base+".data")) {
				FileAccess* file = FileAccess::open(cache_filename_base+".etag", FileAccess::READ);
				if (file) {
					headers.push_back("If-None-Match: " + file->get_line());
					file->close();
				}
			}

			print_line("REQUEST ICON FOR: "+itos(E->get().asset_id));
			Error err = E->get().request->request(E->get().image_url, headers);
			if (err!=OK) {
				to_delete.push_back(E->key());
			} else {
				E->get().active=true;
			}
			current_images++;
		} else if (E->get().active) {
			current_images++;
		}
	}

	while(to_delete.size()) {
		image_queue[to_delete.front()->get()].request->queue_delete();
		image_queue.erase(to_delete.front()->get());
		to_delete.pop_front();
	}
}

void EditorAssetLibrary::_request_image(ObjectID p_for,String p_image_url,ImageType p_type,int p_image_index) {


	ImageQueue iq;
	iq.image_url=p_image_url;
	iq.image_index=p_image_index;
	iq.image_type=p_type;
	iq.request = memnew( HTTPRequest );

	iq.target=p_for;
	iq.queue_id=++last_queue_id;
	iq.active=false;

	iq.request->connect("request_completed",this,"_image_request_completed",varray(iq.queue_id));

	image_queue[iq.queue_id]=iq;

	add_child(iq.request);

	_image_update(true, false, ByteArray(), iq.queue_id);
	_update_image_queue();


}

void EditorAssetLibrary::_repository_changed(int p_repository_id) {
	host=repository->get_item_metadata(p_repository_id);
	print_line(".." + host);
	if(templates_only) {
		_api_request("configure", REQUESTING_CONFIG, "?type=project");
	} else {
		_api_request("configure", REQUESTING_CONFIG);
	}
}

void EditorAssetLibrary::_support_toggled(int p_support) {
	support->get_popup()->set_item_checked(p_support, !support->get_popup()->is_item_checked(p_support));
	_search();
}

void EditorAssetLibrary::_rerun_search(int p_ignore) {
	_search();
}

void EditorAssetLibrary::_search(int p_page) {

	String args;

	if(templates_only) {
		args += "?type=project&";
	} else {
		args += "?";
	}
	args+=String()+"sort="+sort_key[sort->get_selected()];

	
	String support_list;
	for(int i = 0; i < SUPPORT_MAX; i++) {
		if(support->get_popup()->is_item_checked(i)) {
			support_list += String(support_key[i]) + "+";
		}
	}
	if(support_list != String()) {
		args += "&support=" + support_list.substr(0, support_list.length() - 1);
	}

	if (categories->get_selected()>0) {

		args+="&category="+itos(categories->get_item_metadata(categories->get_selected()));
	}
	
	if (reverse->is_pressed()) {

		args+="&reverse=true";
	}
	
	if (filter->get_text()!=String()) {
		args+="&filter="+filter->get_text().http_escape();
	}

	if (p_page>0) {
		args+="&page="+itos(p_page);
	}

	_api_request("asset",REQUESTING_SEARCH,args);
}

HBoxContainer* EditorAssetLibrary::_make_pages(int p_page,int p_page_count,int p_page_len,int p_total_items,int p_current_items) {

	HBoxContainer * hbc = memnew( HBoxContainer );

	//do the mario
	int from = p_page-5;
	if (from<0)
		from=0;
	int to = from+10;
	if (to>p_page_count)
		to=p_page_count;

	Color gray = Color(0.65,0.65,0.65);

	hbc->add_spacer();
	hbc->add_constant_override("separation",10);

	if(p_page != 0) {
		LinkButton *first = memnew( LinkButton );
		first->set_text("first");
		first->add_color_override("font_color", gray );
		first->set_underline_mode(LinkButton::UNDERLINE_MODE_ON_HOVER);
		first->connect("pressed",this,"_search",varray(0));
		hbc->add_child(first);
	}

	if (p_page>0) {
		LinkButton *prev = memnew( LinkButton );
		prev->set_text("prev");
		prev->add_color_override("font_color", gray );
		prev->set_underline_mode(LinkButton::UNDERLINE_MODE_ON_HOVER);
		prev->connect("pressed",this,"_search",varray(p_page-1));
		hbc->add_child(prev);
	}

	for(int i=from;i<to;i++) {

		if (i==p_page) {

			Label *current = memnew(Label);
			current->set_text(itos(i+1));
			hbc->add_child(current);
		} else {

			LinkButton *current = memnew( LinkButton );
			current->add_color_override("font_color", gray );
			current->set_underline_mode(LinkButton::UNDERLINE_MODE_ON_HOVER);
			current->set_text(itos(i+1));
			current->connect("pressed",this,"_search",varray(i));

			hbc->add_child(current);

		}
	}

	if (p_page<p_page_count-1) {
		LinkButton *next = memnew( LinkButton );
		next->set_text("next");
		next->add_color_override("font_color", gray );
		next->set_underline_mode(LinkButton::UNDERLINE_MODE_ON_HOVER);
		next->connect("pressed",this,"_search",varray(p_page+1));

		hbc->add_child(next);
	}

	if(p_page != p_page_count-1) {
		LinkButton *last = memnew( LinkButton );
		last->set_text("last");
		last->add_color_override("font_color", gray );
		last->set_underline_mode(LinkButton::UNDERLINE_MODE_ON_HOVER);
		hbc->add_child(last);
		last->connect("pressed",this,"_search",varray(p_page_count-1));
	}

	Label *totals = memnew( Label );
	totals->set_text("( "+itos(from*p_page_len)+" - "+itos(from*p_page_len+p_current_items-1)+" / "+itos(p_total_items)+" )");
	hbc->add_child(totals);

	hbc->add_spacer();

	return hbc;
}


void EditorAssetLibrary::_api_request(const String& p_request, RequestType p_request_type, const String& p_arguments) {

	if (requesting!=REQUESTING_NONE) {
		request->cancel_request();
	}
	requesting=p_request_type;

	error_hb->hide();
	request->request(host+"/"+p_request+p_arguments);
}



void EditorAssetLibrary::_http_request_completed(int p_status, int p_code, const StringArray& headers, const ByteArray& p_data) {


	String str;

	{
		int datalen=p_data.size();
		ByteArray::Read r = p_data.read();
		str.parse_utf8((const char*)r.ptr(),datalen);
	}

	bool error_abort=true;

	switch(p_status) {

		case HTTPRequest::RESULT_CANT_RESOLVE: {
			error_label->set_text("Can't resolve hostname: "+host);
		} break;
		case HTTPRequest::RESULT_BODY_SIZE_LIMIT_EXCEEDED:
		case HTTPRequest::RESULT_CONNECTION_ERROR:
		case HTTPRequest::RESULT_CHUNKED_BODY_SIZE_MISMATCH: {
			error_label->set_text("Connection error, please try again.");
		} break;
		case HTTPRequest::RESULT_SSL_HANDSHAKE_ERROR:
		case HTTPRequest::RESULT_CANT_CONNECT: {
			error_label->set_text("Can't connect to host: "+host);
		} break;
		case HTTPRequest::RESULT_NO_RESPONSE: {
			error_label->set_text("No response from host: "+host);
		} break;
		case HTTPRequest::RESULT_REQUEST_FAILED: {
			error_label->set_text("Request failed, return code: "+itos(p_code));
		} break;
		case HTTPRequest::RESULT_REDIRECT_LIMIT_REACHED: {
			error_label->set_text("Request failed, too many redirects");

		} break;
		default: {
			if (p_code!=200) {
				error_label->set_text("Request failed, return code: "+itos(p_code));
			} else {

				error_abort=false;
			}
		} break;

	}


	if (error_abort) {
		error_hb->show();
		return;
	}

	print_line("response: "+itos(p_status)+" code: "+itos(p_code));
	Dictionary d;
	d.parse_json(str);

	print_line(Variant(d).get_construct_string());

	RequestType requested = requesting;
	requesting=REQUESTING_NONE;

	switch(requested) {
		case REQUESTING_CONFIG: {

			categories->clear();
			categories->add_item("All");
			categories->set_item_metadata(0,0);
			if (d.has("categories")) {
				Array clist = d["categories"];
				for(int i=0;i<clist.size();i++) {
					Dictionary cat = clist[i];
					if (!cat.has("name") || !cat.has("id"))
						continue;
					String name=cat["name"];
					int id=cat["id"];
					categories->add_item(name);
					categories->set_item_metadata( categories->get_item_count() -1, id);
					category_map[cat["id"]] = name;
				}
			}

			_search();
		} break;
		case REQUESTING_SEARCH: {
			if (asset_items) {
				memdelete(asset_items);
			}

			if (asset_top_page) {
				memdelete(asset_top_page);
			}

			if (asset_bottom_page) {
				memdelete(asset_bottom_page);
			}

			int page=0;
			int pages=1;
			int page_len=10;
			int total_items=1;
			Array result;


			if (d.has("page")) {
				page=d["page"];
			}
			if (d.has("pages")) {
				pages=d["pages"];
			}
			if (d.has("page_length")) {
				page_len=d["page_length"];
			}
			if (d.has("total")) {
				total_items=d["total"];
			}
			if (d.has("result")) {
				result=d["result"];
			}

			asset_top_page = _make_pages(page,pages,page_len,total_items,result.size());
			library_vb->add_child(asset_top_page);

			asset_items = memnew( GridContainer );
			asset_items->set_columns(2);
			asset_items->add_constant_override("hseparation",10);
			asset_items->add_constant_override("vseparation",10);

			library_vb->add_child(asset_items);

			asset_bottom_page = _make_pages(page,pages,page_len,total_items,result.size());
			library_vb->add_child(asset_bottom_page);

			for(int i=0;i<result.size();i++) {

				Dictionary r = result[i];

				ERR_CONTINUE(!r.has("title"));
				ERR_CONTINUE(!r.has("asset_id"));
				ERR_CONTINUE(!r.has("author"));
				ERR_CONTINUE(!r.has("author_id"));
				ERR_CONTINUE(!r.has("category_id"));
				ERR_FAIL_COND(!category_map.has(r["category_id"]));
				ERR_CONTINUE(!r.has("rating"));
				ERR_CONTINUE(!r.has("cost"));


				EditorAssetLibraryItem *item = memnew( EditorAssetLibraryItem );
				asset_items->add_child(item);
				item->configure(r["title"],r["asset_id"],category_map[r["category_id"]],r["category_id"],r["author"],r["author_id"],r["rating"],r["cost"]);
				item->connect("asset_selected",this,"_select_asset");
				item->connect("author_selected",this,"_select_author");
				item->connect("category_selected",this,"_select_category");

				if(r.has("icon_url") && r["icon_url"] != "") {
					_request_image(item->get_instance_ID(),r["icon_url"],IMAGE_QUEUE_ICON,0);
				}
			}
		} break;
		case REQUESTING_ASSET: {
			Dictionary r = d;

			ERR_FAIL_COND(!r.has("title"));
			ERR_FAIL_COND(!r.has("asset_id"));
			ERR_FAIL_COND(!r.has("author"));
			ERR_FAIL_COND(!r.has("author_id"));
			ERR_FAIL_COND(!r.has("version"));
			ERR_FAIL_COND(!r.has("version_string"));
			ERR_FAIL_COND(!r.has("category_id"));
			ERR_FAIL_COND(!category_map.has(r["category_id"]));
			ERR_FAIL_COND(!r.has("rating"));
			ERR_FAIL_COND(!r.has("cost"));
			ERR_FAIL_COND(!r.has("description"));
			ERR_FAIL_COND(!r.has("download_url"));
			ERR_FAIL_COND(!r.has("download_hash"));
			ERR_FAIL_COND(!r.has("browse_url"));

			if (description) {
				memdelete(description);
			}

			description = memnew( EditorAssetLibraryItemDescription );
			add_child(description);
			description->popup_centered_minsize();
			description->connect("confirmed",this,"_install_asset");

			description->configure(r["title"],r["asset_id"],category_map[r["category_id"]],r["category_id"],r["author"],r["author_id"],r["rating"],r["cost"],r["version"],r["version_string"],r["description"],r["download_url"],r["browse_url"], r["download_hash"]);
			/*item->connect("asset_selected",this,"_select_asset");
			item->connect("author_selected",this,"_select_author");
			item->connect("category_selected",this,"_category_selected");*/

			if(r.has("icon_url") && r["icon_url"] != "") {
				_request_image(description->get_instance_ID(),r["icon_url"],IMAGE_QUEUE_ICON,0);
			}

			if (d.has("previews")) {
				Array previews = d["previews"];

				for(int i=0;i<previews.size();i++) {


					Dictionary p=previews[i];

					ERR_CONTINUE(!p.has("type"));
					ERR_CONTINUE(!p.has("link"));

					bool is_video=p.has("type") && String(p["type"])=="video";
					String video_url;
					if (is_video && p.has("link")) {
						video_url=p["link"];
					}

					description->add_preview(i,is_video,video_url);

					if(p.has("thumbnail")) {
						_request_image(description->get_instance_ID(),p["thumbnail"],IMAGE_QUEUE_THUMBNAIL,i);
					}
					if(is_video) {
						//_request_image(description->get_instance_ID(),p["link"],IMAGE_QUEUE_SCREENSHOT,i);
					} else {
						_request_image(description->get_instance_ID(),p["link"],IMAGE_QUEUE_SCREENSHOT,i);
					}

				}
			}
		} break;
		default: break;
	}

}


void EditorAssetLibrary::_asset_file_selected(const String& p_file) {

	if (asset_installer) {
		memdelete( asset_installer );
		asset_installer=NULL;
	}

	asset_installer = memnew( EditorAssetInstaller );
	add_child(asset_installer);
	asset_installer->open(p_file);


}

void EditorAssetLibrary::_asset_open() {

	asset_open->popup_centered_ratio();
}

void EditorAssetLibrary::_manage_plugins() {

	ProjectSettings::get_singleton()->popup_project_settings();
	ProjectSettings::get_singleton()->set_plugins_page();
}



void EditorAssetLibrary::_bind_methods() {

	ObjectTypeDB::bind_method("_http_request_completed",&EditorAssetLibrary::_http_request_completed);
	ObjectTypeDB::bind_method("_select_asset",&EditorAssetLibrary::_select_asset);
	ObjectTypeDB::bind_method("_select_author",&EditorAssetLibrary::_select_author);
	ObjectTypeDB::bind_method("_select_category",&EditorAssetLibrary::_select_category);
	ObjectTypeDB::bind_method("_image_request_completed",&EditorAssetLibrary::_image_request_completed);
	ObjectTypeDB::bind_method("_search",&EditorAssetLibrary::_search,DEFVAL(0));
	ObjectTypeDB::bind_method("_install_asset",&EditorAssetLibrary::_install_asset);
	ObjectTypeDB::bind_method("_manage_plugins",&EditorAssetLibrary::_manage_plugins);
	ObjectTypeDB::bind_method("_asset_open",&EditorAssetLibrary::_asset_open);
	ObjectTypeDB::bind_method("_asset_file_selected",&EditorAssetLibrary::_asset_file_selected);
	ObjectTypeDB::bind_method("_repository_changed",&EditorAssetLibrary::_repository_changed);
	ObjectTypeDB::bind_method("_support_toggled",&EditorAssetLibrary::_support_toggled);
	ObjectTypeDB::bind_method("_rerun_search",&EditorAssetLibrary::_rerun_search);

}

EditorAssetLibrary::EditorAssetLibrary(bool p_templates_only) {

	templates_only=p_templates_only;

	Ref<StyleBoxEmpty> border;
	border.instance();
	border->set_default_margin(MARGIN_LEFT,15);
	border->set_default_margin(MARGIN_RIGHT,15);
	border->set_default_margin(MARGIN_BOTTOM,5);
	border->set_default_margin(MARGIN_TOP,5);

	add_style_override("panel",border);

	VBoxContainer *library_main = memnew( VBoxContainer );

	add_child(library_main);

	HBoxContainer *search_hb = memnew( HBoxContainer );

	library_main->add_child(search_hb);
	library_main->add_constant_override("separation",10);



	search_hb->add_child( memnew( Label(TTR("Search:")+" ")));
	filter =memnew( LineEdit );
	search_hb->add_child(filter);
	filter->set_h_size_flags(SIZE_EXPAND_FILL);
	filter->connect("text_entered",this,"_search");
	search = memnew( Button("Search"));
	search->connect("pressed",this,"_search");
	search_hb->add_child(search);

	if (!p_templates_only)
		search_hb->add_child(memnew( VSeparator ));

	Button * open_asset = memnew( Button );
	open_asset->set_text("Import");
	search_hb->add_child(open_asset);
	open_asset->connect("pressed",this,"_asset_open");

	Button * plugins = memnew( Button );
	plugins->set_text("Plugins");
	search_hb->add_child(plugins);
	plugins->connect("pressed",this,"_manage_plugins");

	if (p_templates_only) {
		open_asset->hide();
		plugins->hide();
	}


	HBoxContainer *search_hb2 = memnew( HBoxContainer );
	library_main->add_child(search_hb2);

	search_hb2->add_child( memnew( Label(TTR("Sort:")+" ")));
	sort = memnew( OptionButton );
	for(int i=0;i<SORT_MAX;i++) {
		sort->add_item(sort_text[i]);
	}

	search_hb2->add_child(sort);

	sort->set_h_size_flags(SIZE_EXPAND_FILL);
	sort->connect("item_selected", this, "_rerun_search");

	reverse = memnew( ToolButton );
	reverse->set_toggle_mode(true);
	reverse->connect("toggled", this, "_rerun_search");
	//reverse->set_text(TTR("Reverse"));
	search_hb2->add_child(reverse);

	search_hb2->add_child(memnew(VSeparator));

	//search_hb2->add_spacer();

	search_hb2->add_child( memnew( Label(TTR("Category:")+" ")));
	categories = memnew( OptionButton );
	categories->add_item(TTR("All"));
	search_hb2->add_child(categories);
	categories->set_h_size_flags(SIZE_EXPAND_FILL);
	//search_hb2->add_spacer();
	categories->connect("item_selected", this, "_rerun_search");

	search_hb2->add_child(memnew(VSeparator));

	search_hb2->add_child( memnew( Label(TTR("Site:")+" ")));
	repository = memnew( OptionButton );

	repository->add_item("Godot");
	repository->set_item_metadata(0, "http://godotengine.org/asset-library/api");
	repository->add_item("Localhost"); // TODO: Maybe remove?
	repository->set_item_metadata(1, "http://127.0.0.1/asset-library/api");
	repository->connect("item_selected",this,"_repository_changed");

	search_hb2->add_child(repository);
	repository->set_h_size_flags(SIZE_EXPAND_FILL);


	search_hb2->add_child(memnew(VSeparator));

	support = memnew( MenuButton );
	search_hb2->add_child(support);
	support->set_text(TTR("Support.."));
	support->get_popup()->add_check_item(TTR("Official"),SUPPORT_OFFICIAL);
	support->get_popup()->add_check_item(TTR("Community"),SUPPORT_COMMUNITY);
	support->get_popup()->add_check_item(TTR("Testing"),SUPPORT_TESTING);
	support->get_popup()->set_item_checked(SUPPORT_OFFICIAL,true);
	support->get_popup()->set_item_checked(SUPPORT_COMMUNITY,true);
	support->get_popup()->connect("item_pressed",this,"_support_toggled");

	/////////

	PanelContainer * library_scroll_bg = memnew( PanelContainer );
	library_main->add_child(library_scroll_bg);
	library_scroll_bg->add_style_override("panel",get_stylebox("normal","TextEdit"));
	library_scroll_bg->set_v_size_flags(SIZE_EXPAND_FILL);

	library_scroll = memnew( ScrollContainer );
	library_scroll->set_enable_v_scroll(true);
	library_scroll->set_enable_h_scroll(false);

	library_scroll_bg->add_child(library_scroll);


	Ref<StyleBoxEmpty> border2;
	border2.instance();
	border2->set_default_margin(MARGIN_LEFT,15);
	border2->set_default_margin(MARGIN_RIGHT,35);
	border2->set_default_margin(MARGIN_BOTTOM,15);
	border2->set_default_margin(MARGIN_TOP,15);


	PanelContainer * library_vb_border = memnew( PanelContainer );
	library_scroll->add_child(library_vb_border);
	library_vb_border->add_style_override("panel",border2);
	library_vb_border->set_h_size_flags(SIZE_EXPAND_FILL);
	library_vb_border->set_stop_mouse(false);



	library_vb = memnew( VBoxContainer );
	library_vb->set_h_size_flags(SIZE_EXPAND_FILL);

	library_vb_border->add_child(library_vb);
//	margin_panel->set_stop_mouse(false);

	asset_top_page = memnew( HBoxContainer );
	library_vb->add_child(asset_top_page);

	asset_items = memnew( GridContainer );
	asset_items->set_columns(2);
	asset_items->add_constant_override("hseparation",10);
	asset_items->add_constant_override("vseparation",10);

	library_vb->add_child(asset_items);

	asset_bottom_page = memnew( HBoxContainer );
	library_vb->add_child(asset_bottom_page);

	request = memnew( HTTPRequest );
	add_child(request);
	request->connect("request_completed",this,"_http_request_completed");

	last_queue_id=0;

	library_vb->add_constant_override("separation",20);

	load_status = memnew( ProgressBar );
	load_status->set_min(0);
	load_status->set_max(1);
	load_status->set_step(0.001);
	library_main->add_child(load_status);

	error_hb = memnew( HBoxContainer );
	library_main->add_child(error_hb);
	error_label = memnew( Label );
	error_label->add_color_override("color",Color(1,0.4,0.3));
	error_hb->add_child(error_label);

	description = NULL;

	set_process(true);

	downloads_scroll = memnew( ScrollContainer );
	downloads_scroll->set_enable_h_scroll(true);
	downloads_scroll->set_enable_v_scroll(false);
	library_main->add_child(downloads_scroll);
	downloads_hb = memnew( HBoxContainer );
	downloads_scroll->add_child(downloads_hb);

	asset_open = memnew( EditorFileDialog );

	asset_open->set_access(EditorFileDialog::ACCESS_FILESYSTEM);
	asset_open->add_filter("*.zip ; "+TTR("Assets ZIP File"));
	asset_open->set_mode(EditorFileDialog::MODE_OPEN_FILE);
	add_child(asset_open);
	asset_open->connect("file_selected",this,"_asset_file_selected");

	asset_installer=NULL;

}


///////


void AssetLibraryEditorPlugin::make_visible(bool p_visible) {

	if (p_visible) {

		addon_library->show();
	} else {

		addon_library->hide();
	}

}

AssetLibraryEditorPlugin::AssetLibraryEditorPlugin(EditorNode *p_node) {

	editor=p_node;
	addon_library = memnew( EditorAssetLibrary );
	addon_library->set_v_size_flags(Control::SIZE_EXPAND_FILL);
	editor->get_viewport()->add_child(addon_library);
	addon_library->set_area_as_parent_rect();
	addon_library->hide();

}

AssetLibraryEditorPlugin::~AssetLibraryEditorPlugin() {

}