/**************************************************************************/
/*  debug_adapter_server.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.                  */
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/* 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     */
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/**************************************************************************/

#include "debug_adapter_server.h"

#include "editor/editor_log.h"
#include "editor/editor_node.h"
#include "editor/settings/editor_settings.h"

int DebugAdapterServer::port_override = -1;

DebugAdapterServer::DebugAdapterServer() {
	// TODO: Move to editor_settings.cpp
	_EDITOR_DEF("network/debug_adapter/remote_port", remote_port);
	_EDITOR_DEF("network/debug_adapter/request_timeout", protocol._request_timeout);
	_EDITOR_DEF("network/debug_adapter/sync_breakpoints", protocol._sync_breakpoints);
}

void DebugAdapterServer::_notification(int p_what) {
	switch (p_what) {
		case NOTIFICATION_ENTER_TREE: {
			start();
		} break;

		case NOTIFICATION_EXIT_TREE: {
			stop();
		} break;

		case NOTIFICATION_INTERNAL_PROCESS: {
			// The main loop can be run again during request processing, which modifies internal state of the protocol.
			// Thus, "polling" is needed to prevent it from parsing other requests while the current one isn't finished.
			if (started && !polling) {
				polling = true;
				protocol.poll();
				polling = false;
			}
		} break;

		case EditorSettings::NOTIFICATION_EDITOR_SETTINGS_CHANGED: {
			if (!EditorSettings::get_singleton()->check_changed_settings_in_group("network/debug_adapter")) {
				break;
			}
			protocol._request_timeout = EDITOR_GET("network/debug_adapter/request_timeout");
			protocol._sync_breakpoints = EDITOR_GET("network/debug_adapter/sync_breakpoints");
			int port = (DebugAdapterServer::port_override > -1) ? DebugAdapterServer::port_override : (int)_EDITOR_GET("network/debug_adapter/remote_port");
			if (port != remote_port) {
				stop();
				start();
			}
		} break;
	}
}

void DebugAdapterServer::start() {
	remote_port = (DebugAdapterServer::port_override > -1) ? DebugAdapterServer::port_override : (int)_EDITOR_GET("network/debug_adapter/remote_port");
	const Error status = protocol.start(remote_port, IPAddress("127.0.0.1"));
	if (status != OK) {
		EditorNode::get_log()->add_message("--- Failed to start Debug adapter server on port " + itos(remote_port) + ": " + error_names[status] + " ---", EditorLog::MSG_TYPE_EDITOR);
		return;
	}
	EditorNode::get_log()->add_message("--- Debug adapter server started on port " + itos(remote_port) + " ---", EditorLog::MSG_TYPE_EDITOR);
	set_process_internal(true);
	started = true;
}

void DebugAdapterServer::stop() {
	protocol.stop();
	started = false;
	EditorNode::get_log()->add_message("--- Debug adapter server stopped ---", EditorLog::MSG_TYPE_EDITOR);
}
