/**************************************************************************/
/*  crypto_resource_format.cpp                                            */
/**************************************************************************/
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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 "crypto_resource_format.h"

#include "core/crypto/crypto.h"

Ref<Resource> ResourceFormatLoaderCrypto::load(const String &p_path, const String &p_original_path, Error *r_error, bool p_use_sub_threads, float *r_progress, CacheMode p_cache_mode) {
	String el = p_path.get_extension().to_lower();
	if (el == "crt") {
		X509Certificate *cert = X509Certificate::create();
		if (cert) {
			cert->load(p_path);
		}
		return cert;
	} else if (el == "key") {
		CryptoKey *key = CryptoKey::create();
		if (key) {
			key->load(p_path, false);
		}
		return key;
	} else if (el == "pub") {
		CryptoKey *key = CryptoKey::create();
		if (key) {
			key->load(p_path, true);
		}
		return key;
	}
	return nullptr;
}

void ResourceFormatLoaderCrypto::get_recognized_extensions(List<String> *p_extensions) const {
	p_extensions->push_back("crt");
	p_extensions->push_back("key");
	p_extensions->push_back("pub");
}

bool ResourceFormatLoaderCrypto::handles_type(const String &p_type) const {
	return p_type == "X509Certificate" || p_type == "CryptoKey";
}

String ResourceFormatLoaderCrypto::get_resource_type(const String &p_path) const {
	String el = p_path.get_extension().to_lower();
	if (el == "crt") {
		return "X509Certificate";
	} else if (el == "key" || el == "pub") {
		return "CryptoKey";
	}
	return "";
}

Error ResourceFormatSaverCrypto::save(const Ref<Resource> &p_resource, const String &p_path, uint32_t p_flags) {
	Error err;
	Ref<X509Certificate> cert = p_resource;
	Ref<CryptoKey> key = p_resource;
	if (cert.is_valid()) {
		err = cert->save(p_path);
	} else if (key.is_valid()) {
		err = key->save(p_path, p_path.has_extension("pub"));
	} else {
		ERR_FAIL_V(ERR_INVALID_PARAMETER);
	}
	ERR_FAIL_COND_V_MSG(err != OK, err, vformat("Cannot save Crypto resource to file '%s'.", p_path));
	return OK;
}

void ResourceFormatSaverCrypto::get_recognized_extensions(const Ref<Resource> &p_resource, List<String> *p_extensions) const {
	const X509Certificate *cert = Object::cast_to<X509Certificate>(*p_resource);
	const CryptoKey *key = Object::cast_to<CryptoKey>(*p_resource);
	if (cert) {
		p_extensions->push_back("crt");
	}
	if (key) {
		if (!key->is_public_only()) {
			p_extensions->push_back("key");
		}
		p_extensions->push_back("pub");
	}
}

bool ResourceFormatSaverCrypto::recognize(const Ref<Resource> &p_resource) const {
	return Object::cast_to<X509Certificate>(*p_resource) || Object::cast_to<CryptoKey>(*p_resource);
}