support v2 and v3 ItemPMT files

src/ItemNameIndex.hh

@@ -0,0 +1,38 @@
+#pragma once
+
+#include <stdint.h>
+
+#include <memory>
+#include <phosg/JSON.hh>
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+#include "ItemData.hh"
+#include "ItemParameterTable.hh"
+
+class ItemNameIndex {
+public:
+  ItemNameIndex(JSON&& v2_names, JSON&& v3_names, JSON&& v4_names);
+
+  std::string describe_item(
+      GameVersion version,
+      const ItemData& item,
+      std::shared_ptr<const ItemParameterTable> item_parameter_table = nullptr) const;
+  ItemData parse_item_description(GameVersion version, const std::string& description) const;
+
+private:
+  ItemData parse_item_description_phase(GameVersion version, const std::string& description, bool skip_special) const;
+
+  struct ItemMetadata {
+    uint32_t primary_identifier;
+    std::string v2_name;
+    std::string v3_name;
+    std::string v4_name;
+  };
+
+  std::unordered_map<uint32_t, std::shared_ptr<ItemMetadata>> primary_identifier_index;
+  std::map<std::string, std::shared_ptr<ItemMetadata>> v2_name_index;
+  std::map<std::string, std::shared_ptr<ItemMetadata>> v3_name_index;
+  std::map<std::string, std::shared_ptr<ItemMetadata>> v4_name_index;
+};