/**************************************************************************/
/*  net_socket_android.cpp                                                */
/**************************************************************************/
/*                         This file is part of:                          */
/*                             GODOT ENGINE                               */
/*                        https://godotengine.org                         */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 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 "net_socket_android.h"

#include "thread_jandroid.h"

jobject NetSocketAndroid::net_utils = nullptr;
jclass NetSocketAndroid::cls = nullptr;
jmethodID NetSocketAndroid::_multicast_lock_acquire = nullptr;
jmethodID NetSocketAndroid::_multicast_lock_release = nullptr;

void NetSocketAndroid::setup(jobject p_net_utils) {
	JNIEnv *env = get_jni_env();

	net_utils = env->NewGlobalRef(p_net_utils);

	jclass c = env->GetObjectClass(net_utils);
	cls = (jclass)env->NewGlobalRef(c);

	_multicast_lock_acquire = env->GetMethodID(cls, "multicastLockAcquire", "()V");
	_multicast_lock_release = env->GetMethodID(cls, "multicastLockRelease", "()V");
}

void NetSocketAndroid::terminate() {
	JNIEnv *env = get_jni_env();
	ERR_FAIL_NULL(env);

	env->DeleteGlobalRef(cls);
	env->DeleteGlobalRef(net_utils);
}

void NetSocketAndroid::multicast_lock_acquire() {
	if (_multicast_lock_acquire) {
		JNIEnv *env = get_jni_env();
		env->CallVoidMethod(net_utils, _multicast_lock_acquire);
	}
}

void NetSocketAndroid::multicast_lock_release() {
	if (_multicast_lock_release) {
		JNIEnv *env = get_jni_env();
		env->CallVoidMethod(net_utils, _multicast_lock_release);
	}
}

NetSocket *NetSocketAndroid::_create_func() {
	return memnew(NetSocketAndroid);
}

void NetSocketAndroid::make_default() {
	_create = _create_func;
}

NetSocketAndroid::~NetSocketAndroid() {
	close();
}

void NetSocketAndroid::close() {
	NetSocketUnix::close();
	if (wants_broadcast) {
		multicast_lock_release();
	}
	if (multicast_groups) {
		multicast_lock_release();
	}
	wants_broadcast = false;
	multicast_groups = 0;
}

Error NetSocketAndroid::set_broadcasting_enabled(bool p_enabled) {
	Error err = NetSocketUnix::set_broadcasting_enabled(p_enabled);
	if (err != OK) {
		return err;
	}

	if (p_enabled != wants_broadcast) {
		if (p_enabled) {
			multicast_lock_acquire();
		} else {
			multicast_lock_release();
		}

		wants_broadcast = p_enabled;
	}

	return OK;
}

Error NetSocketAndroid::join_multicast_group(const IPAddress &p_multi_address, const String &p_if_name) {
	Error err = NetSocketUnix::join_multicast_group(p_multi_address, p_if_name);
	if (err != OK) {
		return err;
	}

	if (!multicast_groups) {
		multicast_lock_acquire();
	}
	multicast_groups++;

	return OK;
}

Error NetSocketAndroid::leave_multicast_group(const IPAddress &p_multi_address, const String &p_if_name) {
	Error err = NetSocketUnix::leave_multicast_group(p_multi_address, p_if_name);
	if (err != OK) {
		return err;
	}

	ERR_FAIL_COND_V(multicast_groups == 0, ERR_BUG);

	multicast_groups--;
	if (!multicast_groups) {
		multicast_lock_release();
	}

	return OK;
}
