Repo created

libs/search/categories_cache.hpp

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+#pragma once
+
+#include "search/categories_set.hpp"
+#include "search/cbv.hpp"
+
+#include "indexer/mwm_set.hpp"
+
+#include "base/cancellable.hpp"
+
+#include <map>
+#include <vector>
+
+namespace search
+{
+class MwmContext;
+
+class CategoriesCache
+{
+public:
+  template <typename TypesSource>
+  CategoriesCache(TypesSource const & source, base::Cancellable const & cancellable) : m_cancellable(cancellable)
+  {
+    source.ForEachType([this](uint32_t type) { m_categories.Add(type); });
+  }
+
+  CategoriesCache(std::vector<uint32_t> const & types, base::Cancellable const & cancellable)
+    : m_cancellable(cancellable)
+  {
+    for (uint32_t type : types)
+      m_categories.Add(type);
+  }
+
+  virtual ~CategoriesCache() = default;
+
+  CBV Get(MwmContext const & context);
+
+  inline void Clear() { m_cache.clear(); }
+
+private:
+  CBV Load(MwmContext const & context) const;
+
+  CategoriesSet m_categories;
+  base::Cancellable const & m_cancellable;
+  std::map<MwmSet::MwmId, CBV> m_cache;
+};
+
+class StreetsCache : public CategoriesCache
+{
+public:
+  StreetsCache(base::Cancellable const & cancellable);
+};
+
+class SuburbsCache : public CategoriesCache
+{
+public:
+  SuburbsCache(base::Cancellable const & cancellable);
+};
+
+class VillagesCache : public CategoriesCache
+{
+public:
+  VillagesCache(base::Cancellable const & cancellable);
+};
+
+class CountriesCache : public CategoriesCache
+{
+public:
+  CountriesCache(base::Cancellable const & cancellable);
+};
+
+class StatesCache : public CategoriesCache
+{
+public:
+  StatesCache(base::Cancellable const & cancellable);
+};
+
+// Used for cities/towns/villages from world. Currently we do not have villages in World.mwm but
+// it may be good to put some important villages to it: mountain/beach resorts.
+class CitiesTownsOrVillagesCache : public CategoriesCache
+{
+public:
+  CitiesTownsOrVillagesCache(base::Cancellable const & cancellable);
+};
+
+class HotelsCache : public CategoriesCache
+{
+public:
+  HotelsCache(base::Cancellable const & cancellable);
+};
+
+class FoodCache : public CategoriesCache
+{
+public:
+  FoodCache(base::Cancellable const & cancellable);
+};
+}  // namespace search