Implement pipeline logging with bounded channels and orchestrator integration

tooling/pipeline/CMakeLists.txt

@@ -155,13 +155,13 @@ target_sources(${PROJECT_NAME} PRIVATE
         src/application_options/parse_arguments.cc
 )
 
-# --- biergarten_data_generator ---
+# --- biergarten_pipeline_orchestrator ---
 target_sources(${PROJECT_NAME} PRIVATE
-        src/biergarten_data_generator/log_results.cc
+        src/biergarten_pipeline_orchestrator/log_results.cc
-        src/biergarten_data_generator/biergarten_data_generator.cc
+        src/biergarten_pipeline_orchestrator/biergarten_data_generator.cc
-        src/biergarten_data_generator/generate_breweries.cc
+        src/biergarten_pipeline_orchestrator/generate_breweries.cc
-        src/biergarten_data_generator/run.cc
+        src/biergarten_pipeline_orchestrator/run.cc
-        src/biergarten_data_generator/query_cities_with_countries.cc
+        src/biergarten_pipeline_orchestrator/query_cities_with_countries.cc
 )
 
 # --- web_client ---
@@ -202,17 +202,23 @@ target_sources(${PROJECT_NAME} PRIVATE
 
 # --- services: sqlite ---
 target_sources(${PROJECT_NAME} PRIVATE
-        src/services/sqlite/process_record.cc
+	src/services/sqlite/process_record.cc
-        src/services/sqlite/sqlite_export_service.cc
+	src/services/sqlite/sqlite_export_service.cc
-        src/services/sqlite/finalize.cc
+	src/services/sqlite/finalize.cc
-        src/services/sqlite/initialize.cc
+	src/services/sqlite/initialize.cc
-        src/services/sqlite/helpers/sqlite_connection_helpers.cc
+	src/services/sqlite/helpers/sqlite_connection_helpers.cc
-        src/services/sqlite/helpers/sqlite_statement_helpers.cc
+	src/services/sqlite/helpers/sqlite_statement_helpers.cc
+)
+
+# --- services: logging ---
+target_sources(${PROJECT_NAME} PRIVATE
+	"src/services/logging/channel_logger.cc"
+        src/services/logging/log_consumer.cc
 )
 
 # --- services (top-level) ---
 target_sources(${PROJECT_NAME} PRIVATE
-        src/services/prompt_directory.cc
+	src/services/prompt_directory.cc
 )
 
 # 6. Include Directories, Link Libraries & Compile Definitions

tooling/pipeline/includes/biergarten_data_generator.h

@@ -2,7 +2,7 @@
 #define BIERGARTEN_PIPELINE_INCLUDES_BIERGARTEN_DATA_GENERATOR_H_
 
 /**
- * @file biergarten_data_generator.h
+ * @file biergarten_pipeline_orchestrator.h
  * @brief Core orchestration class for pipeline data generation.
  */
 
@@ -21,7 +21,7 @@
  * This class encapsulates the core logic for generating brewery data.
  * It handles location loading, city enrichment, and brewery generation.
  */
-class BiergartenDataGenerator {
+class BiergartenPipelineOrchestrator {
  public:
   /**
    * @brief Construct a BiergartenDataGenerator with injected dependencies.
@@ -30,10 +30,11 @@ class BiergartenDataGenerator {
    * @param generator Brewery and user data generator.
    * @param exporter Storage backend for generated brewery data.
    */
-  BiergartenDataGenerator(std::unique_ptr<IEnrichmentService> context_service,
+  BiergartenPipelineOrchestrator(
-                          std::unique_ptr<DataGenerator> generator,
+      std::unique_ptr<IEnrichmentService> context_service,
-                          std::unique_ptr<IExportService> exporter,
+      std::unique_ptr<DataGenerator> generator,
-                          const ApplicationOptions& application_options);
+      std::unique_ptr<IExportService> exporter,
+      const ApplicationOptions& application_options);
 
   /**
    * @brief Run the data generation pipeline.
@@ -57,7 +58,7 @@ class BiergartenDataGenerator {
   /// @brief Storage backend for generated brewery records.
   std::unique_ptr<IExportService> exporter_;
 
-  const ApplicationOptions application_options_;
+  ApplicationOptions application_options_;
 
   /**
    * @brief Load locations from JSON and sample cities.

tooling/pipeline/includes/concurrency/bounded_channel.h

@@ -2,17 +2,17 @@
 // Created by aaronpo on 29/04/2026.
 //
 
-#ifndef CONCURRENCY_INTRO_CPP_INCLUDES_BOUNDEDCHANNEL_H_
+#ifndef BIERGARTEN_PIPELINE_INCLUDES_CONCURRENCY_BOUNDED_CHANNEL_H_
-#define CONCURRENCY_INTRO_CPP_INCLUDES_BOUNDEDCHANNEL_H_
+#define BIERGARTEN_PIPELINE_INCLUDES_CONCURRENCY_BOUNDED_CHANNEL_H_
 
 #include <condition_variable>
+#include <cstddef>
 #include <mutex>
 #include <optional>
 #include <queue>
-#include <cstddef>
 
 /**
- * @file BoundedChannel.h
+ * @file bounded_channel.h
  * @brief A thread-safe, bounded multi-producer/multi-consumer channel.
  */
 
@@ -26,7 +26,6 @@
 // ---------------------------------------------------------------------------
 template <typename T>
 class BoundedChannel {
-
   // -------------------------------------------------------------------------
   // Internal state — all access must be guarded by mutex_.
   // -------------------------------------------------------------------------
@@ -44,7 +43,6 @@ class BoundedChannel {
   bool closed_ = false;
 
  public:
-
   /**
    * @brief Construct a bounded channel with the given capacity.
    * @param capacity Maximum number of items the channel may hold.
@@ -68,10 +66,10 @@ class BoundedChannel {
   /**
    * @brief Close the channel and unblock all waiting threads. Idempotent.
    */
-  void close();
+  void Close();
 };
 
 // Include the template implementation
-#include "BoundedChannel.tcc"
+#include "bounded_channel.tcc"
 
-#endif  // CONCURRENCY_INTRO_CPP_INCLUDES_BOUNDEDCHANNEL_H_
+#endif  // BIERGARTEN_PIPELINE_INCLUDES_CONCURRENCY_BOUNDED_CHANNEL_H_

tooling/pipeline/includes/concurrency/bounded_channel.tcc

@@ -1,4 +1,4 @@
-#include "BoundedChannel.h"
+#include "bounded_channel.h"
 
 template <typename T>
 void BoundedChannel<T>::Send(T item) {
@@ -42,7 +42,7 @@ std::optional<T> BoundedChannel<T>::Receive() {
 }
 
 template <typename T>
-void BoundedChannel<T>::close() {
+void BoundedChannel<T>::Close() {
   // Acquire exclusive ownership of the mutex to ensure visibility of the flag.
   std::unique_lock lock(mutex_);
 

tooling/pipeline/includes/services/logging/channel_logger.h

@@ -0,0 +1,37 @@
+/**
+ * @file services/logging/channel_logger.h
+ * @brief Channel-backed implementation of the Logger interface.
+ *
+ * ChannelLogger constructs LogEntry values and forwards them to a
+ * BoundedChannel<LogEntry> for asynchronous consumption by LogConsumer.
+ * The channel is injected by reference; ChannelLogger does not own it.
+ */
+
+#ifndef BIERGARTEN_PIPELINE_INCLUDES_SERVICES_LOGGING_CHANNEL_LOGGER_H_
+#define BIERGARTEN_PIPELINE_INCLUDES_SERVICES_LOGGING_CHANNEL_LOGGER_H_
+
+#include <string_view>
+
+#include "concurrency/bounded_channel.h"
+#include "services/logging/log_entry.h"
+#include "services/logging/logger.h"
+
+class ChannelLogger final : public ILogger {
+ public:
+  explicit ChannelLogger(BoundedChannel<LogEntry>& channel);
+
+  ChannelLogger(const ChannelLogger&) = delete;
+  ChannelLogger& operator=(const ChannelLogger&) = delete;
+  ChannelLogger(ChannelLogger&&) = delete;
+  ChannelLogger& operator=(ChannelLogger&&) = delete;
+
+  ~ChannelLogger() override = default;
+
+  void Log(LogLevel level, PipelinePhase phase,
+           std::string_view message) override;
+
+ private:
+  BoundedChannel<LogEntry>& channel_;
+};
+
+#endif  // BIERGARTEN_PIPELINE_INCLUDES_SERVICES_LOGGING_CHANNEL_LOGGER_H_

tooling/pipeline/includes/services/logging/log_consumer.h

@@ -0,0 +1,44 @@
+/**
+ * @file services/logging/log_consumer.h
+ * @brief Dedicated log drain worker for the pipeline logging channel.
+ *
+ * LogConsumer runs on its own thread, draining LogEntry items from a
+ * BoundedChannel<LogEntry> and forwarding them to spdlog. Exits cleanly
+ * when the channel is closed.
+ */
+
+#ifndef BIERGARTEN_PIPELINE_INCLUDES_SERVICES_LOGGING_LOG_CONSUMER_H_
+#define BIERGARTEN_PIPELINE_INCLUDES_SERVICES_LOGGING_LOG_CONSUMER_H_
+
+#include <spdlog/spdlog.h>
+
+#include <string>
+
+#include "concurrency/bounded_channel.h"
+#include "services/logging/log_entry.h"
+
+class LogConsumer {
+ public:
+  explicit LogConsumer(BoundedChannel<LogEntry>& channel);
+
+  LogConsumer(const LogConsumer&) = delete;
+  LogConsumer& operator=(const LogConsumer&) = delete;
+  LogConsumer(LogConsumer&&) = delete;
+  LogConsumer& operator=(LogConsumer&&) = delete;
+
+  /**
+   * @brief Drains the channel until it is closed.
+   *
+   * Intended to be run on a dedicated std::thread. Exits when:
+   *   - The channel is closed and the queue is fully drained.
+   */
+  void Run();
+
+ private:
+  BoundedChannel<LogEntry>& channel_;
+
+  static spdlog::level::level_enum ToSpdlogLevel(LogLevel level);
+  static std::string ToString(PipelinePhase phase);
+};
+
+#endif  // BIERGARTEN_PIPELINE_INCLUDES_SERVICES_LOGGING_LOG_CONSUMER_H_

tooling/pipeline/includes/services/logging/log_entry.h

@@ -0,0 +1,41 @@
+/**
+ * @file services/logging/log_entry.h
+ * @brief POD struct representing a single log event in the pipeline.
+ *
+ * LogEntry is produced by PipelineLogger and consumed by LogWorker via
+ * BoundedChannel<LogEntry>. All fields are value types so entries are
+ * safely movable across the channel without shared ownership.
+ */
+
+#ifndef BIERGARTEN_PIPELINE_INCLUDES_SERVICES_LOGGING_LOG_ENTRY_H_
+#define BIERGARTEN_PIPELINE_INCLUDES_SERVICES_LOGGING_LOG_ENTRY_H_
+
+#include <chrono>
+#include <string>
+
+enum class LogLevel {
+  Debug,
+  Info,
+  Warn,
+  Error,
+};
+
+enum class PipelinePhase {
+  Startup,
+  UserGeneration,
+  BreweryAndBeerGeneration,
+  CheckinGeneration,
+  RatingGeneration,
+  FollowGeneration,
+  Teardown,
+};
+
+struct LogEntry {
+  std::chrono::system_clock::time_point timestamp =
+      std::chrono::system_clock::now();
+  LogLevel level;
+  PipelinePhase phase;
+  std::string message;
+};
+
+#endif  // BIERGARTEN_PIPELINE_INCLUDES_SERVICES_LOGGING_LOG_ENTRY_H_

tooling/pipeline/includes/services/logging/logger.h

@@ -0,0 +1,31 @@
+/**
+ * @file services/logging/logger.h
+ * @brief Abstract interface for pipeline logging.
+ *
+ * Kept intentionally narrow. Components that need to log depend on Logger,
+ * not on PipelineLogger or any channel type.
+ */
+
+#ifndef BIERGARTEN_PIPELINE_INCLUDES_SERVICES_LOGGING_LOGGER_H_
+#define BIERGARTEN_PIPELINE_INCLUDES_SERVICES_LOGGING_LOGGER_H_
+
+#include <optional>
+#include <string>
+#include <string_view>
+
+#include "services/logging/log_entry.h"
+
+class ILogger {
+ public:
+  ILogger() = default;
+  ILogger(const ILogger&) = delete;
+  ILogger& operator=(const ILogger&) = delete;
+  ILogger(ILogger&&) = delete;
+  ILogger& operator=(ILogger&&) = delete;
+  virtual ~ILogger() = default;
+
+  virtual void Log(LogLevel level, PipelinePhase phase,
+                   std::string_view message) = 0;
+};
+
+#endif  // BIERGARTEN_PIPELINE_INCLUDES_SERVICES_LOGGING_LOGGER_H_

tooling/pipeline/src/biergarten_pipeline_orchestrator/biergarten_data_generator.cc

@@ -1,5 +1,5 @@
 /**
- * @file biergarten_data_generator/biergarten_data_generator.cc
+ * @file biergarten_pipeline_orchestrator/biergarten_pipeline_orchestrator.cc
  * @brief BiergartenDataGenerator constructor implementation.
  */
 
@@ -7,7 +7,7 @@
 
 #include <utility>
 
-BiergartenDataGenerator::BiergartenDataGenerator(
+BiergartenPipelineOrchestrator::BiergartenPipelineOrchestrator(
     std::unique_ptr<IEnrichmentService> context_service,
     std::unique_ptr<DataGenerator> generator,
     std::unique_ptr<IExportService> exporter,

tooling/pipeline/src/biergarten_pipeline_orchestrator/generate_breweries.cc

@@ -1,5 +1,5 @@
 /**
- * @file biergarten_data_generator/generate_breweries.cc
+ * @file biergarten_pipeline_orchestrator/generate_breweries.cc
  * @brief BiergartenDataGenerator::GenerateBreweries() implementation.
  */
 
@@ -7,7 +7,7 @@
 
 #include "biergarten_data_generator.h"
 
-void BiergartenDataGenerator::GenerateBreweries(
+void BiergartenPipelineOrchestrator::GenerateBreweries(
     std::span<const EnrichedCity> cities) {
   spdlog::info("\n=== SAMPLE BREWERY GENERATION ===");
 

tooling/pipeline/src/biergarten_pipeline_orchestrator/log_results.cc

@@ -1,5 +1,5 @@
 /**
- * @file biergarten_data_generator/log_results.cc
+ * @file biergarten_pipeline_orchestrator/log_results.cc
  * @brief BiergartenDataGenerator::LogResults() implementation.
  */
 
@@ -7,7 +7,7 @@
 
 #include "biergarten_data_generator.h"
 
-void BiergartenDataGenerator::LogResults() const {
+void BiergartenPipelineOrchestrator::LogResults() const {
   spdlog::info("\n=== GENERATED DATA DUMP ===");
   size_t index = 1;
   for (const auto& [location, brewery] : generated_breweries_) {

tooling/pipeline/src/biergarten_pipeline_orchestrator/query_cities_with_countries.cc

@@ -1,5 +1,5 @@
 /**
- * @file biergarten_data_generator/query_cities_with_countries.cc
+ * @file biergarten_pipeline_orchestrator/query_cities_with_countries.cc
  * @brief BiergartenDataGenerator::QueryCitiesWithCountries() implementation.
  */
 
@@ -13,7 +13,7 @@
 #include "biergarten_data_generator.h"
 #include "json_handling/json_loader.h"
 
-std::vector<Location> BiergartenDataGenerator::QueryCitiesWithCountries() {
+std::vector<Location> BiergartenPipelineOrchestrator::QueryCitiesWithCountries() {
   spdlog::info("\n=== GEOGRAPHIC DATA OVERVIEW ===");
 
   const std::filesystem::path locations_path = "locations.json";

tooling/pipeline/src/biergarten_pipeline_orchestrator/run.cc

@@ -1,5 +1,5 @@
 /**
- * @file biergarten_data_generator/run.cc
+ * @file biergarten_pipeline_orchestrator/run.cc
  * @brief BiergartenDataGenerator::Run() implementation.
  */
 
@@ -9,7 +9,7 @@
 
 #include "biergarten_data_generator.h"
 
-bool BiergartenDataGenerator::Run() {
+bool BiergartenPipelineOrchestrator::Run() {
   try {
     exporter_->Initialize();
 

tooling/pipeline/src/main.cc

@@ -12,8 +12,10 @@
 #include <memory>
 #include <optional>
 #include <string>
+#include <thread>
 
 #include "biergarten_data_generator.h"
+#include "concurrency/bounded_channel.h"
 #include "data_generation/llama_generator.h"
 #include "data_generation/mock_generator.h"
 #include "data_generation/prompt_formatting/gemma4_jinja_prompt_formatter.h"
@@ -25,12 +27,22 @@
 #include "services/enrichment/enrichment_service.h"
 #include "services/enrichment/mock_enrichment.h"
 #include "services/enrichment/wikipedia_service.h"
+#include "services/logging/channel_logger.h"
+#include "services/logging/log_consumer.h"
+#include "services/logging/log_entry.h"
+#include "services/logging/logger.h"
 #include "services/prompting/prompt_directory.h"
 #include "web_client/http_web_client.h"
 
 namespace di = boost::di;
 
+static constexpr size_t kLogMaxCount = 512;
 int main(const int argc, char** argv) {
+  auto log_channel = std::make_shared<BoundedChannel<LogEntry>>(kLogMaxCount);
+  ChannelLogger channel_logger(*log_channel);
+  LogConsumer log_worker(*log_channel);
+  std::thread log_thread([&log_worker] { log_worker.Run(); });
+
   try {
     Timer timer;
     spdlog::set_pattern("[%Y-%m-%d %H:%M:%S.%e] [%^%l%$] %v");
@@ -46,6 +58,8 @@ int main(const int argc, char** argv) {
         ParseArguments(argc, argv);
 
     if (!parsed_options.has_value()) {
+      log_channel->Close();
+      log_thread.join();
       return 0;
     }
 
@@ -54,66 +68,97 @@ int main(const int argc, char** argv) {
     const auto sampling =
         options.generator.sampling.value_or(SamplingOptions{});
 
+    // -----------------------------------------------------------------------
+    // Prompt directory
+    // Conditionally constructed before the injector; moved into LlamaGenerator.
+    // -----------------------------------------------------------------------
     std::unique_ptr<IPromptDirectory> prompt_directory;
     if (!options.generator.use_mocked) {
       try {
         prompt_directory =
             std::make_unique<PromptDirectory>(options.pipeline.prompt_dir);
       } catch (const std::exception& dir_error) {
-        spdlog::error("[Startup] Invalid --prompt-dir: {}", dir_error.what());
+        channel_logger.Log(
+            LogLevel::Error, PipelinePhase::Startup,
+            std::string("Invalid --prompt-dir: ") + dir_error.what());
+        log_channel->Close();
+        log_thread.join();
         return 1;
       }
     }
 
+    // -----------------------------------------------------------------------
+    // Dependency injection
+    // -----------------------------------------------------------------------
     const auto injector = di::make_injector(
         di::bind<ApplicationOptions>().to(options),
         di::bind<std::string>().to(model_path),
         di::bind<WebClient>().to<HttpWebClient>(),
         di::bind<IExportService>().to<SqliteExportService>(),
         di::bind<IPromptFormatter>().to<Gemma4JinjaPromptFormatter>(),
+        di::bind<ILogger>().to(
+            [log_channel](const auto&) -> std::unique_ptr<ILogger> {
+              return std::make_unique<ChannelLogger>(*log_channel);
+            }),
         di::bind<IEnrichmentService>().to(
             [options](const auto& inj) -> std::unique_ptr<IEnrichmentService> {
               if (options.generator.use_mocked) {
                 return std::make_unique<MockEnrichmentService>();
               }
-
               return std::make_unique<WikipediaEnrichmentService>(
                   inj.template create<std::unique_ptr<WebClient>>());
             }),
         di::bind<DataGenerator>().to(
-            [options, model_path, sampling, &prompt_directory](
+            [&options, &model_path, &sampling, &prompt_directory,
+             &channel_logger](
                 const auto& inj) -> std::unique_ptr<DataGenerator> {
               if (options.generator.use_mocked) {
-                spdlog::info(
+                channel_logger.Log(
-                    "[Generator] Using MockGenerator (no model path provided)");
+                    LogLevel::Info, PipelinePhase::Startup,
+                    "Using MockGenerator (no model path provided)");
                 return std::make_unique<MockGenerator>();
               }
-
+              channel_logger.Log(
-              spdlog::info(
+                  LogLevel::Info, PipelinePhase::Startup,
-                  "[Generator] Using LlamaGenerator: {} (temperature={}, "
+                  "Using LlamaGenerator: " + model_path +
-                  "top-p={}, top-k={}, n_ctx={}, seed={})",
+                      " (temperature=" + std::to_string(sampling.temperature) +
-                  model_path, sampling.temperature, sampling.top_p,
+                      ", top-p=" + std::to_string(sampling.top_p) +
-                  sampling.top_k, sampling.n_ctx, sampling.seed);
+                      ", top-k=" + std::to_string(sampling.top_k) +
+                      ", n_ctx=" + std::to_string(sampling.n_ctx) +
+                      ", seed=" + std::to_string(sampling.seed) + ")");
               return std::make_unique<LlamaGenerator>(
                   options, model_path,
                   inj.template create<std::unique_ptr<IPromptFormatter>>(),
                   std::move(prompt_directory));
-            })
+            }));
 
-    );
+    // -----------------------------------------------------------------------
+    // Pipeline execution
+    // -----------------------------------------------------------------------
+    const auto orchestrator =
+        injector.create<std::unique_ptr<BiergartenPipelineOrchestrator>>();
 
-    const auto generator =
+    if (!orchestrator->Run()) {
-        injector.create<std::unique_ptr<BiergartenDataGenerator>>();
+      channel_logger.Log(LogLevel::Error, PipelinePhase::Teardown,
-
+                         "Pipeline execution failed");
-    if (!generator->Run()) {
+      log_channel->Close();
-      spdlog::error("Pipeline execution failed");
+      log_thread.join();
       return 1;
     }
 
-    spdlog::info("Pipeline executed successfully in {} ms", timer.Elapsed());
+    channel_logger.Log(LogLevel::Info, PipelinePhase::Teardown,
+                       "Pipeline executed successfully in " +
+                           std::to_string(timer.Elapsed()) + " ms");
+
+    log_channel->Close();
+    log_thread.join();
     return 0;
+
   } catch (const std::exception& exception) {
+    // Channel may be in an unknown state; fall back to spdlog directly.
     spdlog::critical("Unhandled fatal error in main: {}", exception.what());
+    log_channel->Close();
+    log_thread.join();
     return 1;
   }
 }

tooling/pipeline/src/services/logging/channel_logger.cc

@@ -0,0 +1,23 @@
+/**
+ * @file services/logging/channel_logger.cc
+ */
+
+#include <chrono>
+#include <optional>
+#include <string>
+#include <string_view>
+
+#include "concurrency/bounded_channel.h"
+#include "services/logging/channel_logger.h"
+#include "services/logging/log_entry.h"
+
+ChannelLogger::ChannelLogger(BoundedChannel<LogEntry>& channel)
+    : channel_(channel) {}
+
+void ChannelLogger::Log(LogLevel level, PipelinePhase phase,
+                         const std::string_view message) {
+  channel_.Send(LogEntry{.timestamp = std::chrono::system_clock::now(),
+                         .level = level,
+                         .phase = phase,
+                         .message = std::string(message)});
+}

tooling/pipeline/src/services/logging/log_consumer.cc

@@ -0,0 +1,74 @@
+/**
+ * @file services/logging/log_consumer.cc
+ * @brief Dedicated log drain worker implementation.
+ *
+ * LogConsumer drains LogEntry items from a BoundedChannel and forwards them
+ * to spdlog for final output.
+ */
+
+#include "services/logging/log_consumer.h"
+
+#include <spdlog/spdlog.h>
+
+#include <string>
+
+#include "concurrency/bounded_channel.h"
+#include "services/logging/log_entry.h"
+
+LogConsumer::LogConsumer(BoundedChannel<LogEntry>& channel)
+    : channel_(channel) {}
+
+void LogConsumer::Run() {
+  while (true) {
+    auto entry = channel_.Receive();
+    if (!entry.has_value()) {
+      // Channel is closed and drained.
+      break;
+    }
+
+    const LogEntry& log_entry = entry.value();
+    auto logger = spdlog::default_logger();
+
+    const std::string formatted_message = [&] {
+      std::string msg = std::string(log_entry.message);
+      msg += " [phase=" + ToString(log_entry.phase) + "]";
+      return msg;
+    }();
+
+    logger->log(ToSpdlogLevel(log_entry.level), formatted_message);
+  }
+}
+
+spdlog::level::level_enum LogConsumer::ToSpdlogLevel(LogLevel level) {
+  switch (level) {
+    case LogLevel::Debug:
+      return spdlog::level::debug;
+    case LogLevel::Info:
+      return spdlog::level::info;
+    case LogLevel::Warn:
+      return spdlog::level::warn;
+    case LogLevel::Error:
+      return spdlog::level::err;
+  }
+  return spdlog::level::info;
+}
+
+std::string LogConsumer::ToString(PipelinePhase phase) {
+  switch (phase) {
+    case PipelinePhase::Startup:
+      return "Startup";
+    case PipelinePhase::UserGeneration:
+      return "UserGeneration";
+    case PipelinePhase::BreweryAndBeerGeneration:
+      return "BreweryAndBeerGeneration";
+    case PipelinePhase::CheckinGeneration:
+      return "CheckinGeneration";
+    case PipelinePhase::RatingGeneration:
+      return "RatingGeneration";
+    case PipelinePhase::FollowGeneration:
+      return "FollowGeneration";
+    case PipelinePhase::Teardown:
+      return "Teardown";
+  }
+  return "Unknown";
+}