Create biergarten brewery pipeline project (#199)

pipeline/includes/biergarten_data_generator.h

@@ -0,0 +1,77 @@
+#ifndef BIERGARTEN_PIPELINE_INCLUDES_BIERGARTEN_DATA_GENERATOR_H_
+#define BIERGARTEN_PIPELINE_INCLUDES_BIERGARTEN_DATA_GENERATOR_H_
+
+/**
+ * @file biergarten_data_generator.h
+ * @brief Core orchestration class for pipeline data generation.
+ */
+
+#include <memory>
+#include <span>
+#include <vector>
+
+#include "data_generation/data_generator.h"
+#include "data_model/enriched_city.h"
+#include "data_model/generated_brewery.h"
+#include "data_model/location.h"
+#include "services/enrichment_service.h"
+
+/**
+ * @brief Main data generator class for the Biergarten pipeline.
+ *
+ * This class encapsulates the core logic for generating brewery data.
+ * It handles location loading, city enrichment, and brewery generation.
+ */
+class BiergartenDataGenerator {
+ public:
+  /**
+   * @brief Construct a BiergartenDataGenerator with injected dependencies.
+   *
+   * @param context_service Context provider for sampled locations.
+   * @param generator Brewery and user data generator.
+   */
+  BiergartenDataGenerator(std::unique_ptr<IEnrichmentService> context_service,
+                          std::unique_ptr<DataGenerator> generator);
+
+  /**
+   * @brief Run the data generation pipeline.
+   *
+   * Performs the following steps:
+   * 1. Load curated locations from JSON
+   * 2. Resolve context for each city using the injected context service
+   * 3. Generate brewery data for sampled cities
+   *
+   * @return true if successful, false if not
+   */
+  bool Run();
+
+ private:
+  /// @brief Owning context provider dependency.
+  std::unique_ptr<IEnrichmentService> context_service_;
+
+  /// @brief Generator dependency selected in the composition root.
+  std::unique_ptr<DataGenerator> generator_;
+
+  /**
+   * @brief Load locations from JSON and sample cities.
+   *
+   * @return Vector of sampled locations capped at 50 entries.
+   */
+  static std::vector<Location> QueryCitiesWithCountries();
+
+  /**
+   * @brief Generate breweries for enriched cities.
+   *
+   * @param cities Span of enriched city data.
+   */
+  void GenerateBreweries(std::span<const EnrichedCity> cities);
+
+  /**
+   * @brief Log the generated brewery results.
+   */
+  void LogResults() const;
+
+  /// @brief Stores generated brewery data.
+  std::vector<GeneratedBrewery> generated_breweries_;
+};
+#endif  // BIERGARTEN_PIPELINE_INCLUDES_BIERGARTEN_DATA_GENERATOR_H_