Repo created

libs/drape/utils/glyph_usage_tracker.hpp

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+#pragma once
+
+#include "drape/drape_diagnostics.hpp"
+
+#include "base/string_utils.hpp"
+
+#include <list>
+#include <map>
+#include <mutex>
+#include <set>
+#include <string>
+#include <unordered_set>
+
+namespace dp
+{
+class GlyphUsageTracker
+{
+public:
+  struct UnexpectedGlyphData
+  {
+    size_t m_counter = 0;
+    size_t m_group = 0;
+    std::set<size_t> m_expectedGroups;
+  };
+  using UnexpectedGlyphs = std::map<strings::UniChar, UnexpectedGlyphData>;
+  using InvalidGlyphs = std::map<strings::UniChar, size_t>;
+
+  struct GlyphUsageStatistic
+  {
+    std::string ToString() const;
+
+    InvalidGlyphs m_invalidGlyphs;
+    UnexpectedGlyphs m_unexpectedGlyphs;
+  };
+
+  static GlyphUsageTracker & Instance();
+
+  void AddInvalidGlyph(strings::UniString const & str, strings::UniChar const & c);
+  void AddUnexpectedGlyph(strings::UniString const & str, strings::UniChar const & c, size_t const group,
+                          size_t const expectedGroup);
+
+  GlyphUsageStatistic Report();
+
+private:
+  GlyphUsageTracker() = default;
+  GlyphUsageTracker(GlyphUsageTracker const & rhs) = delete;
+  GlyphUsageTracker(GlyphUsageTracker && rhs) = delete;
+
+private:
+  GlyphUsageStatistic m_glyphStat;
+  std::unordered_set<std::string> m_processedStrings;
+
+  std::mutex m_mutex;
+};
+}  // namespace dp