/*************************************************************************/
/*  gltf_document_extension.cpp                                          */
/*************************************************************************/
/*                         This file is part of:                         */
/*                          PANDEMONIUM ENGINE                           */
/*             https://github.com/Relintai/pandemonium_engine            */
/*************************************************************************/
/* Copyright (c) 2022-present Péter Magyar.                              */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md).   */
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
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/*************************************************************************/

#include "gltf_document_extension.h"

#include "../gltf_document.h"
#include "scene/main/spatial.h"

void GLTFDocumentExtension::_bind_methods() {
	// Import process.
	BIND_VMETHOD(MethodInfo(Variant::INT, "_import_preflight", PropertyInfo(Variant::OBJECT, "state"), PropertyInfo(Variant::POOL_STRING_ARRAY, "extensions")));
	BIND_VMETHOD(MethodInfo(Variant::ARRAY, "_get_supported_extensions"));
	BIND_VMETHOD(MethodInfo(Variant::INT, "_parse_node_extensions", PropertyInfo(Variant::OBJECT, "state"), PropertyInfo(Variant::OBJECT, "gltf_node"), PropertyInfo(Variant::DICTIONARY, "extensions")));
	BIND_VMETHOD(MethodInfo(Variant::OBJECT, "_generate_scene_node", PropertyInfo(Variant::OBJECT, "state"), PropertyInfo(Variant::OBJECT, "gltf_node"), PropertyInfo(Variant::OBJECT, "scene_parent")));
	BIND_VMETHOD(MethodInfo(Variant::INT, "_import_post_parse", PropertyInfo(Variant::OBJECT, "state")));
	BIND_VMETHOD(MethodInfo(Variant::INT, "_import_node", PropertyInfo(Variant::OBJECT, "state"), PropertyInfo(Variant::OBJECT, "gltf_node"), PropertyInfo(Variant::DICTIONARY, "json"), PropertyInfo(Variant::OBJECT, "node")));
	BIND_VMETHOD(MethodInfo(Variant::INT, "_import_post", PropertyInfo(Variant::OBJECT, "state"), PropertyInfo(Variant::OBJECT, "root")));
	// Export process.
	BIND_VMETHOD(MethodInfo(Variant::INT, "_export_preflight", PropertyInfo(Variant::OBJECT, "state"), PropertyInfo(Variant::OBJECT, "root")));
	BIND_VMETHOD(MethodInfo("_convert_scene_node", PropertyInfo(Variant::OBJECT, "state"), PropertyInfo(Variant::OBJECT, "gltf_node"), PropertyInfo(Variant::OBJECT, "scene_node")));
	BIND_VMETHOD(MethodInfo(Variant::INT, "_export_node", PropertyInfo(Variant::OBJECT, "state"), PropertyInfo(Variant::OBJECT, "gltf_node"), PropertyInfo(Variant::DICTIONARY, "json"), PropertyInfo(Variant::OBJECT, "node")));
	BIND_VMETHOD(MethodInfo(Variant::INT, "_export_post", PropertyInfo(Variant::OBJECT, "state")));
}

// Import process.
Error GLTFDocumentExtension::import_preflight(Ref<GLTFState> p_state, Vector<String> p_extensions) {
	ERR_FAIL_COND_V(p_state.is_null(), ERR_INVALID_PARAMETER);
	ScriptInstance *si = get_script_instance();
	if (!si) {
		return Error::OK;
	}
	int err = si->call("_import_preflight", p_state, p_extensions);
	return Error(err);
}

Vector<String> GLTFDocumentExtension::get_supported_extensions() {
	Vector<String> ret;
	ScriptInstance *si = get_script_instance();
	if (!si) {
		return ret;
	}
	si->call("_get_supported_extensions");
	return ret;
}

Error GLTFDocumentExtension::parse_node_extensions(Ref<GLTFState> p_state, Ref<GLTFNode> p_gltf_node, Dictionary &p_extensions) {
	ERR_FAIL_COND_V(p_state.is_null(), ERR_INVALID_PARAMETER);
	ERR_FAIL_COND_V(p_gltf_node.is_null(), ERR_INVALID_PARAMETER);
	ScriptInstance *si = get_script_instance();
	if (!si) {
		return Error::OK;
	}
	int err = si->call("_parse_node_extensions", p_state, p_gltf_node, p_extensions);
	return Error(err);
}

Spatial *GLTFDocumentExtension::generate_scene_node(Ref<GLTFState> p_state, Ref<GLTFNode> p_gltf_node, Node *p_scene_parent) {
	ERR_FAIL_COND_V(p_state.is_null(), nullptr);
	ERR_FAIL_COND_V(p_gltf_node.is_null(), nullptr);
	ERR_FAIL_NULL_V(p_scene_parent, nullptr);
	ScriptInstance *si = get_script_instance();
	if (!si) {
		return nullptr;
	}
	Variant ret = si->call("_generate_scene_node", p_state, p_gltf_node, p_scene_parent);
	Spatial *ret_node = cast_to<Spatial>(ret.operator Object *());
	return ret_node;
}

Error GLTFDocumentExtension::import_post_parse(Ref<GLTFState> p_state) {
	ERR_FAIL_COND_V(p_state.is_null(), ERR_INVALID_PARAMETER);
	ScriptInstance *si = get_script_instance();
	if (!si) {
		return Error::OK;
	}
	int err = si->call("_import_post_parse", p_state);
	return Error(err);
}

Error GLTFDocumentExtension::import_node(Ref<GLTFState> p_state, Ref<GLTFNode> p_gltf_node, Dictionary &r_dict, Node *p_node) {
	ERR_FAIL_COND_V(p_state.is_null(), ERR_INVALID_PARAMETER);
	ERR_FAIL_COND_V(p_gltf_node.is_null(), ERR_INVALID_PARAMETER);
	ERR_FAIL_NULL_V(p_node, ERR_INVALID_PARAMETER);
	ScriptInstance *si = get_script_instance();
	if (!si) {
		return Error::OK;
	}
	int err = si->call("_import_node", p_state, p_gltf_node, r_dict, p_node);
	return Error(err);
}

Error GLTFDocumentExtension::import_post(Ref<GLTFState> p_state, Node *p_root) {
	ERR_FAIL_NULL_V(p_root, ERR_INVALID_PARAMETER);
	ERR_FAIL_COND_V(p_state.is_null(), ERR_INVALID_PARAMETER);
	ScriptInstance *si = get_script_instance();
	if (!si) {
		return Error::OK;
	}
	int err = si->call("_import_post", p_state, p_root);
	return Error(err);
}

// Export process.
Error GLTFDocumentExtension::export_preflight(Ref<GLTFState> p_state, Node *p_root) {
	ERR_FAIL_NULL_V(p_root, ERR_INVALID_PARAMETER);
	ScriptInstance *si = get_script_instance();
	if (!si) {
		return Error::OK;
	}
	int err = si->call("_export_preflight", p_root);
	return Error(err);
}

void GLTFDocumentExtension::convert_scene_node(Ref<GLTFState> p_state, Ref<GLTFNode> p_gltf_node, Node *p_scene_node) {
	ERR_FAIL_COND(p_state.is_null());
	ERR_FAIL_COND(p_gltf_node.is_null());
	ERR_FAIL_NULL(p_scene_node);
	ScriptInstance *si = get_script_instance();
	if (!si) {
		return;
	}
	si->call("_convert_scene_node", p_state, p_gltf_node, p_scene_node);
}

Error GLTFDocumentExtension::export_node(Ref<GLTFState> p_state, Ref<GLTFNode> p_gltf_node, Dictionary &r_dict, Node *p_node) {
	ERR_FAIL_COND_V(p_state.is_null(), ERR_INVALID_PARAMETER);
	ERR_FAIL_COND_V(p_gltf_node.is_null(), ERR_INVALID_PARAMETER);
	ERR_FAIL_NULL_V(p_node, ERR_INVALID_PARAMETER);
	ScriptInstance *si = get_script_instance();
	if (!si) {
		return Error::OK;
	}
	int err = si->call("_export_node", p_state, p_gltf_node, r_dict, p_node);
	return Error(err);
}

Error GLTFDocumentExtension::export_post(Ref<GLTFState> p_state) {
	ERR_FAIL_COND_V(p_state.is_null(), ERR_INVALID_PARAMETER);
	ScriptInstance *si = get_script_instance();
	if (!si) {
		return Error::OK;
	}
	int err = si->call("_export_post", p_state);
	return Error(err);
}