/*************************************************************************/
/*  resources_dock.cpp                                                   */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2017 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 "resources_dock.h"
#include "editor_node.h"
#include "io/resource_loader.h"
#include "io/resource_saver.h"
#include "editor_settings.h"
#include "project_settings.h"
#include "globals.h"
#include "editor_file_system.h"


void ResourcesDock::_tool_selected(int p_tool) {

	current_action=p_tool;

	switch(p_tool) {

		case TOOL_NEW: {

			create_dialog->popup_centered_ratio();
		} break;
		case TOOL_OPEN: {
			editor->open_resource();

		} break;
		case TOOL_SAVE: {

			TreeItem *ti = resources->get_selected();
			if (!ti)
				break;
			Ref<Resource> current_res = ti->get_metadata(0);


			if (current_res->get_path()!="" && current_res->get_path().find("::")==-1) {
				_file_action(current_res->get_path());
				break;
			};

		}; /* fallthrough */
		case TOOL_SAVE_AS: {

			TreeItem *ti = resources->get_selected();
			if (!ti)
				break;

			save_resource_as(ti->get_metadata(0));


		} break;
		case TOOL_MAKE_LOCAL: {

			TreeItem *ti = resources->get_selected();
			if (!ti)
				break;
			Ref<Resource> current_res = ti->get_metadata(0);
			current_res->set_path("");
			_update_name(ti);
		} break;
		case TOOL_COPY: {

			TreeItem *ti = resources->get_selected();
			if (!ti)
				break;
			Ref<Resource> current_res = ti->get_metadata(0);
			EditorSettings::get_singleton()->set_resource_clipboard(current_res);

		} break;
		case TOOL_PASTE: {

			add_resource(EditorSettings::get_singleton()->get_resource_clipboard());
		} break;

	}
}



void ResourcesDock::_notification(int p_what) {

	switch(p_what) {

		case NOTIFICATION_ENTER_TREE: {

			button_new->set_icon(get_icon("New","EditorIcons"));
			button_open->set_icon(get_icon("Folder","EditorIcons"));
			button_save->set_icon(get_icon("Save","EditorIcons"));
			button_tools->set_icon(get_icon("Tools","EditorIcons"));


		} break;
	}

}


void ResourcesDock::save_resource(const String& p_path,const Ref<Resource>& p_resource) {

	editor->get_editor_data().apply_changes_in_editors();;
	int flg=0;
	if (EditorSettings::get_singleton()->get("on_save/compress_binary_resources"))
		flg|=ResourceSaver::FLAG_COMPRESS;
	//if (EditorSettings::get_singleton()->get("on_save/save_paths_as_relative"))
	//	flg|=ResourceSaver::FLAG_RELATIVE_PATHS;

	String path = Globals::get_singleton()->localize_path(p_path);
	Error err = ResourceSaver::save(path,p_resource,flg|ResourceSaver::FLAG_REPLACE_SUBRESOURCE_PATHS);

	if (err!=OK) {
		accept->set_text(TTR("Error saving resource!"));
		accept->popup_centered_minsize();
        return;
	}
//	EditorFileSystem::get_singleton()->update_file(path,p_resource->get_type());

	((Resource*)p_resource.ptr())->set_path(path);
	editor->emit_signal("resource_saved",p_resource);

}

void ResourcesDock::save_resource_as(const Ref<Resource>& p_resource) {

	current_action=TOOL_SAVE_AS;

	RES res(p_resource);

	List<String> extensions;
	ResourceSaver::get_recognized_extensions(res,&extensions);
	file->set_mode(EditorFileDialog::MODE_SAVE_FILE);

	if (p_resource->get_path()!="" && p_resource->get_path().find("::")==-1) {

		file->set_current_path(p_resource->get_path());
	} else {

		String existing;
		if (extensions.size()) {
			existing="new_"+res->get_class().to_lower()+"."+extensions.front()->get().to_lower();
		}

		file->set_current_file(existing);
	}

	file->clear_filters();
	for(int i=0;i<extensions.size();i++) {

		file->add_filter("*."+extensions[i]+" ; "+extensions[i].to_upper());
	}

	file->popup_centered_ratio();

}

void ResourcesDock::_file_action(const String& p_path) {


	switch(current_action) {

		case TOOL_OPEN: {

		} break;
		case TOOL_SAVE:
		case TOOL_SAVE_AS: {

			TreeItem *ti = resources->get_selected();
			if (!ti)
				break;
			Ref<Resource> current_res = ti->get_metadata(0);

			RES res(current_res);

			save_resource(p_path,res);

			_update_name(ti);

		} break;

	}
}

void ResourcesDock::_update_name(TreeItem *item) {

	Ref<Resource> res = item->get_metadata(0);


	if (res->get_name()!="")
		item->set_text(0,res->get_name());
	else if (res->get_path()!="" && res->get_path().find("::")==-1)
		item->set_text(0,res->get_path().get_file());
	else
		item->set_text(0,res->get_class()+" ("+itos(res->get_instance_ID())+")");

}


void ResourcesDock::remove_resource(const Ref<Resource>& p_resource) {

	TreeItem *root = resources->get_root();
	ERR_FAIL_COND(!root);

	TreeItem *existing=root->get_children();

	while(existing) {

		Ref<Resource> r = existing->get_metadata(0);
		if (r==p_resource) {
			//existing->move_to_top();
			memdelete(existing);
			return;
		}
		existing=existing->get_next();
	}


}

void ResourcesDock::add_resource(const Ref<Resource>& p_resource) {

	if (block_add)
		return;
	if (!p_resource.is_valid())
		return;

	TreeItem *root = resources->get_root();
	ERR_FAIL_COND(!root);

	TreeItem *existing=root->get_children();

	while(existing) {

		Ref<Resource> r = existing->get_metadata(0);
		if (r==p_resource) {
			//existing->move_to_top();
			existing->select(0);
			resources->ensure_cursor_is_visible();
			return; // existing
		}
		existing=existing->get_next();
	}

	TreeItem *res = resources->create_item(root);
	res->set_metadata(0,p_resource);

	if (has_icon(p_resource->get_class(),"EditorIcons")) {
		res->set_icon(0,get_icon(p_resource->get_class(),"EditorIcons"));
	}

	_update_name(res);
	res->add_button(0,get_icon("Del","EditorIcons"));
	res->move_to_top();
	res->select(0);
	resources->ensure_cursor_is_visible();

}

void ResourcesDock::_resource_selected() {

	TreeItem *sel = resources->get_selected();
	ERR_FAIL_COND(!sel);


	Ref<Resource> r = sel->get_metadata(0);
	if (r.is_null())
		return;
	block_add=true;
	editor->push_item(r.ptr());
	block_add=false;
}

void ResourcesDock::_delete(Object* p_item, int p_column, int p_id) {

	TreeItem *ti = p_item->cast_to<TreeItem>();
	ERR_FAIL_COND(!ti);


	call_deferred("remove_resource",ti->get_metadata(0));

}

void ResourcesDock::_create() {

	Object *c = create_dialog->instance_selected();

	ERR_FAIL_COND(!c);
	Resource *r = c->cast_to<Resource>();
	ERR_FAIL_COND(!r);

	REF res( r );

	editor->push_item(c);

}

void ResourcesDock::_bind_methods() {

	ClassDB::bind_method(_MD("_tool_selected"),&ResourcesDock::_tool_selected);
	ClassDB::bind_method(_MD("_create"),&ResourcesDock::_create);
	ClassDB::bind_method(_MD("_resource_selected"),&ResourcesDock::_resource_selected);
	ClassDB::bind_method(_MD("_delete"),&ResourcesDock::_delete);
	ClassDB::bind_method(_MD("remove_resource"),&ResourcesDock::remove_resource);
	ClassDB::bind_method(_MD("_file_action"),&ResourcesDock::_file_action);



}

void ResourcesDock::cleanup() {


	resources->clear();
	resources->create_item(); //root

}


ResourcesDock::ResourcesDock(EditorNode *p_editor) {

	editor=p_editor;

	VBoxContainer *vbc = this;

	HBoxContainer *hbc = memnew( HBoxContainer );
	vbc->add_child(hbc);


	Button *b;
	b = memnew( ToolButton );
	b->set_tooltip(TTR("Create New Resource"));
	b->connect("pressed",this,"_tool_selected",make_binds(TOOL_NEW));
	hbc->add_child( b );
	button_new=b;

	b = memnew( ToolButton );
	b->set_tooltip(TTR("Open Resource"));
	b->connect("pressed",this,"_tool_selected",make_binds(TOOL_OPEN));
	hbc->add_child( b );
	button_open=b;

	MenuButton *mb = memnew( MenuButton );
	mb->set_tooltip(TTR("Save Resource"));
	mb->get_popup()->add_item(TTR("Save Resource"),TOOL_SAVE);
	mb->get_popup()->add_item(TTR("Save Resource As.."),TOOL_SAVE_AS);
	mb->get_popup()->connect("item_pressed",this,"_tool_selected" );
	hbc->add_child( mb );
	button_save=mb;

	hbc->add_spacer();

	mb = memnew( MenuButton );
	mb->set_tooltip(TTR("Resource Tools"));
	mb->get_popup()->add_item(TTR("Make Local"),TOOL_MAKE_LOCAL);
	mb->get_popup()->add_item(TTR("Copy"),TOOL_COPY);
	mb->get_popup()->add_item(TTR("Paste"),TOOL_PASTE);
	mb->get_popup()->connect("item_pressed",this,"_tool_selected" );
	hbc->add_child( mb );
	button_tools=mb;

	resources = memnew( Tree );
	vbc->add_child(resources);
	resources->set_v_size_flags(SIZE_EXPAND_FILL);
	resources->create_item(); //root
	resources->set_hide_root(true);
	resources->connect("cell_selected",this,"_resource_selected");
	resources->connect("button_pressed",this,"_delete");

	create_dialog = memnew( CreateDialog );
	add_child(create_dialog);
	create_dialog->set_base_type("Resource");
	create_dialog->connect("create",this,"_create");
	accept = memnew (AcceptDialog);
	add_child(accept);

	file = memnew( EditorFileDialog );
	add_child(file);
	file->connect("file_selected",this,"_file_action");


	block_add=false;
}