load path from config, follow log file, working reopening

plugins/plugin_factorio.cpp

@@ -3,6 +3,8 @@
 #include <entt/entt.hpp>
 #include <entt/fwd.hpp>
 
+#include <solanaceae/util/config_model.hpp>
+
 #include "factorio_log_parser.hpp"
 #include "factorio.hpp"
 
@@ -31,12 +33,13 @@ SOLANA_PLUGIN_EXPORT uint32_t solana_plugin_start(struct SolanaAPI* solana_api)
 	}
 
 	try {
+		auto* conf = PLUG_RESOLVE_INSTANCE(ConfigModelI);
 		auto* cr = PLUG_RESOLVE_INSTANCE_VERSIONED(Contact3Registry, "1");
 		auto* rmm = PLUG_RESOLVE_INSTANCE(RegistryMessageModel);
 
 		// static store, could be anywhere tho
 		// construct with fetched dependencies
-		g_flp = std::make_unique<FactorioLogParser>();
+		g_flp = std::make_unique<FactorioLogParser>(*conf);
 		g_f = std::make_unique<Factorio>(*cr, *rmm, *g_flp);
 
 		// register types
@@ -57,9 +60,8 @@ SOLANA_PLUGIN_EXPORT void solana_plugin_stop(void) {
 	g_flp.reset();
 }
 
-SOLANA_PLUGIN_EXPORT float solana_plugin_tick(float) {
-	//return g_rpbot->tick(delta);
-	return 1000.f;
+SOLANA_PLUGIN_EXPORT float solana_plugin_tick(float delta) {
+	return g_flp->tick(delta);
 }
 
 } // extern C

src/factorio.cpp

@@ -29,34 +29,42 @@ bool Factorio::onEvent(const Message::Events::MessageConstruct& e) {
 }
 
 bool Factorio::onEvent(const FactorioLog::Events::Join& e) {
+	std::cout << "F: event join " << e.player_name << "\n";
 	return false;
 }
 
 bool Factorio::onEvent(const FactorioLog::Events::Leave& e) {
+	std::cout << "F: event leave " << e.player_name << " " << e.reason << "\n";
 	return false;
 }
 
 bool Factorio::onEvent(const FactorioLog::Events::Chat& e) {
+	std::cout << "F: event chat " << e.player_name << ": " << e.message << "\n";
 	return false;
 }
 
 bool Factorio::onEvent(const FactorioLog::Events::Died& e) {
+	std::cout << "F: event died " << e.player_name << ": " << e.reason << "\n";
 	return false;
 }
 
 bool Factorio::onEvent(const FactorioLog::Events::Evolution& e) {
+	std::cout << "F: event evolution " << e.evo << "\n";
 	return false;
 }
 
 bool Factorio::onEvent(const FactorioLog::Events::ResearchStarted& e) {
+	std::cout << "F: event research started " << e.name << "\n";
 	return false;
 }
 
 bool Factorio::onEvent(const FactorioLog::Events::ResearchFinished& e) {
+	std::cout << "F: event research finished " << e.name << "\n";
 	return false;
 }
 
 bool Factorio::onEvent(const FactorioLog::Events::ResearchCancelled& e) {
+	std::cout << "F: event research cancelled " << e.name << "\n";
 	return false;
 }
 

src/factorio_log_parser.cpp

@@ -1,28 +1,74 @@
 #include "./factorio_log_parser.hpp"
 
+#include <solanaceae/util/config_model.hpp>
+
 #include "./log_parse.hpp"
 
-FactorioLogParser::FactorioLogParser(void) :
-	_fw("test.txt", [this](const auto& path, const auto event){ this->onFileEvent(path, event);})
+FactorioLogParser::FactorioLogParser(ConfigModelI& conf) :
+	_log_file_path(conf.get_string("FactorioLogParser", "log_file_path").value_or("factorio-current.log")),
+	_fw(_log_file_path, [this](const auto& path, const auto event){ this->onFileEvent(path, event);})
 {
+	resetLogFile();
 }
 
 FactorioLogParser::~FactorioLogParser(void) {
 }
 
-void FactorioLogParser::onFileEvent(const std::string& path, const filewatch::Event change_type) {
-	std::cout << "file even " << filewatch::event_to_string(change_type) << " on '" << path << "'\n";
-
-	// on create, close open log file and reopen and skip to end
-	// on mod (?), read line, parse
+float FactorioLogParser::tick(float) {
+	std::lock_guard lg{_event_queue_mutex};
+	while (!_event_queue.empty()) {
+		dispatchRaw(_event_queue.front().event, _event_queue.front().params);
+		_event_queue.pop();
+	}
 
+	return 10.f;
+}
 
-	std::string line;
+void FactorioLogParser::onFileEvent(const std::string& path, const filewatch::Event change_type) {
+	// compare path?
+
+	if (change_type == filewatch::Event::added) {
+		// on create, close open log file and reopen and skip to end
+		resetLogFile();
+	} else if (change_type == filewatch::Event::modified) {
+		// on mod, read lines and parse
+		if (!_log_file.is_open()) {
+			std::cerr << "FLP: modified file not open!\n";
+			//resetLogFile();
+		} else {
+			std::string line;
+			while (std::getline(_log_file, line).good()) {
+				if (line.empty()) {
+					std::cerr << "FLP error: getline empty??\n";
+					continue;
+				}
+
+				const auto parse_res = log_parse_line(line);
+				if (parse_res.has_value()) {
+					queueRaw(parse_res.value().event, parse_res.value().params);
+				}
+			}
+			_log_file.clear(); // reset eof and fail bits
+		}
+	}
+}
 
-	const auto parse_res = log_parse_line(line);
-	if (parse_res.has_value()) {
-		dispatchRaw(parse_res.value().event, parse_res.value().params);
+void FactorioLogParser::resetLogFile(void) {
+	std::cerr << "FLP: resetting log file\n";
+	if (_log_file.is_open()) {
+		_log_file.close();
+		_log_file.clear();
 	}
+	_log_file.open(_log_file_path, std::ios::in | std::ios::binary | std::ios::ate);
+	if (!_log_file.is_open()) {
+		std::cerr << "FLP error: failed opening file\n";
+	}
+}
+
+void FactorioLogParser::queueRaw(std::string_view event, std::string_view params) {
+	std::lock_guard lg{_event_queue_mutex};
+	_event_queue.push(EventEntry{static_cast<std::string>(event), static_cast<std::string>(params)});
+	//std::cerr << "enqued '" << event << "': '" << params << "'\n";
 }
 
 void FactorioLogParser::dispatchRaw(std::string_view event, std::string_view params) {

src/factorio_log_parser.hpp

@@ -6,6 +6,12 @@
 
 #include <string>
 #include <string_view>
+#include <mutex>
+#include <queue>
+#include <fstream>
+
+// fwd
+struct ConfigModelI;
 
 namespace FactorioLog::Events {
 
@@ -77,16 +83,29 @@ struct FactorioLogParserEventI {
 using FactorioLogParserEventProviderI = EventProviderI<FactorioLogParserEventI>;
 
 class FactorioLogParser : public FactorioLogParserEventProviderI {
+	std::string _log_file_path;
 	filewatch::FileWatch<std::string> _fw;
+	std::ifstream _log_file;
+
+	struct EventEntry {
+		std::string event;
+		std::string params;
+	};
+	std::queue<EventEntry> _event_queue;
+	std::mutex _event_queue_mutex;
 
 	public:
-		FactorioLogParser(void);
+		FactorioLogParser(ConfigModelI& conf);
 		virtual ~FactorioLogParser(void);
 
+		float tick(float delta);
+
 	protected:
 		void onFileEvent(const std::string& path, const filewatch::Event change_type);
+		void resetLogFile(void);
 
 	protected:
+		void queueRaw(std::string_view event, std::string_view params);
 		void dispatchRaw(std::string_view event, std::string_view params);
 
 		void throwJoin(std::string_view params);