Add new module websocket and use it

Implement /api/v1/events which will send out messages when
things change, such as the main controller.

1 files changed, 34 insertions, 0 deletions

diff --git a/src/logger.cc b/src/logger.cc
index 21effff..104797f 100644
--- a/src/logger.cc
+++ b/src/logger.cc
@@ -1,6 +1,7 @@
 #include "logger.hh"
 
 #include <cstdint>
+#include <format>
 #include <iostream>
 #include <memory>
 #include <string>
@@ -125,6 +126,34 @@ class StderrLogger : public BaseLogger {
   bool const verbose_;
 };
 
+class PrefixLogger : public Logger {
+ public:
+  PrefixLogger(Logger& logger, std::string prefix)
+      : logger_(logger), prefix_(std::move(prefix)) {}
+
+  void err(std::string_view message) override {
+    logger_.err(std::format("{}: {}", prefix_, message));
+  }
+
+  void warn(std::string_view message) override {
+    logger_.warn(std::format("{}: {}", prefix_, message));
+  }
+
+  void info(std::string_view message) override {
+    logger_.info(std::format("{}: {}", prefix_, message));
+  }
+
+#if !defined(NDEBUG)
+  void dbg(std::string_view message) override {
+    logger_.dbg(std::format("{}: {}", prefix_, message));
+  }
+#endif
+
+ private:
+  Logger& logger_;
+  std::string prefix_;
+};
+
 }  // namespace
 
 [[nodiscard]]
@@ -142,4 +171,9 @@ std::unique_ptr<Logger> stderr(bool verbose) {
   return std::make_unique<StderrLogger>(verbose);
 }
 
+[[nodiscard]]
+std::unique_ptr<Logger> prefix(Logger& logger, std::string prefix) {
+  return std::make_unique<PrefixLogger>(logger, std::move(prefix));
+}
+
 }  // namespace logger