/**************************************************************************/
/*  editor_scene_importer_gltf.cpp                                        */
/**************************************************************************/
/*                         This file is part of:                          */
/*                             GODOT ENGINE                               */
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
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#include "editor_scene_importer_gltf.h"

#include "../gltf_defines.h"
#include "../gltf_document.h"

#include "core/io/resource_importer.h"

void EditorSceneFormatImporterGLTF::get_extensions(List<String> *r_extensions) const {
	r_extensions->push_back("gltf");
	r_extensions->push_back("glb");
}

Node *EditorSceneFormatImporterGLTF::import_scene(const String &p_path, uint32_t p_flags,
		const HashMap<StringName, Variant> &p_options,
		List<String> *r_missing_deps, Error *r_err) {
	Ref<GLTFDocument> gltf_doc;
	gltf_doc.instantiate();
	Ref<GLTFState> gltf_state;
	gltf_state.instantiate();
	if (p_options.has("gltf/naming_version")) {
		int naming_version = p_options["gltf/naming_version"];
		gltf_doc->set_naming_version(naming_version);
	}
	if (p_options.has("gltf/embedded_image_handling")) {
		int32_t enum_option = p_options["gltf/embedded_image_handling"];
		gltf_state->set_handle_binary_image_mode((GLTFState::HandleBinaryImageMode)enum_option);
	}
	if (p_options.has("gltf/texture_map_mode")) {
		int32_t enum_option = p_options["gltf/texture_map_mode"];
		gltf_doc->set_texture_map_mode((GLTFDocument::TextureMapMode)enum_option);
	}
	if (p_options.has(SNAME("nodes/import_as_skeleton_bones")) ? (bool)p_options[SNAME("nodes/import_as_skeleton_bones")] : false) {
		gltf_state->set_import_as_skeleton_bones(true);
	}
	if (p_options.has(SNAME("extract_path"))) {
		gltf_state->set_extract_path(p_options["extract_path"]);
	}
	gltf_state->set_bake_fps(p_options["animation/fps"]);
	Error err = gltf_doc->append_from_file(p_path, gltf_state, p_flags);
	if (err != OK) {
		if (r_err) {
			*r_err = err;
		}
		return nullptr;
	}
	if (p_options.has("animation/import")) {
		gltf_state->set_create_animations(bool(p_options["animation/import"]));
	}

#ifndef DISABLE_DEPRECATED
	bool trimming = p_options.has("animation/trimming") ? (bool)p_options["animation/trimming"] : false;
	return gltf_doc->generate_scene(gltf_state, gltf_state->get_bake_fps(), trimming, false);
#else
	return gltf_doc->generate_scene(gltf_state, gltf_state->get_bake_fps(), (bool)p_options["animation/trimming"], false);
#endif
}

void EditorSceneFormatImporterGLTF::get_import_options(const String &p_path,
		List<ResourceImporter::ImportOption> *r_options) {
	String file_extension = p_path.get_extension().to_lower();
	// Returns all the options when path is empty because that means it's for the Project Settings.
	if (p_path.is_empty() || file_extension == "gltf" || file_extension == "glb") {
		r_options->push_back(ResourceImporterScene::ImportOption(PropertyInfo(Variant::INT, "gltf/naming_version", PROPERTY_HINT_ENUM, "Godot 4.0 or 4.1,Godot 4.2 to 4.4,Godot 4.5 or later"), 2));
		r_options->push_back(ResourceImporterScene::ImportOption(PropertyInfo(Variant::INT, "gltf/embedded_image_handling", PROPERTY_HINT_ENUM, "Discard All Textures,Extract Textures,Embed as Basis Universal,Embed as Uncompressed", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_UPDATE_ALL_IF_MODIFIED), GLTFState::HANDLE_BINARY_IMAGE_MODE_EXTRACT_TEXTURES));
		r_options->push_back(ResourceImporterScene::ImportOption(PropertyInfo(Variant::INT, "gltf/texture_map_mode", PROPERTY_HINT_ENUM, "Do Not Remap,Remap to StandardMaterial3D", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_UPDATE_ALL_IF_MODIFIED), GLTFDocument::TEXTURE_MAP_MODE_REMAP_TO_STANDARD_MATERIAL));
	}
}

void EditorSceneFormatImporterGLTF::handle_compatibility_options(HashMap<StringName, Variant> &p_import_params) const {
	if (!p_import_params.has("gltf/texture_map_mode")) {
		// If an existing import file is missing the glTF
		// texture map mode, we need to use "Do Not Remap".
		p_import_params["gltf/texture_map_mode"] = (int64_t)GLTFDocument::TEXTURE_MAP_MODE_DO_NOT_REMAP;
	}
}

Variant EditorSceneFormatImporterGLTF::get_option_visibility(const String &p_path, const String &p_scene_import_type,
		const String &p_option, const HashMap<StringName, Variant> &p_options) {
	return true;
}
