mpq_chain.hpp

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#pragma once

 
#include <filesystem>
#include <span>
#include <string_view>
#include <vector>
 
#include <wowlib/core/client_version.hpp>
#include <wowlib/core/error.hpp>
 
namespace wowlib::fs::detail {
  enum class ChainEntryKind {
    Fixed, 
    LocaleFixed, 
  };

  struct ChainEntry {
    ChainEntryKind kind;
    std::string_view pattern;
  };

  enum class PatchScheme {
    None, 
    ClassicWildcard, 
    UpdateChain, 
  };

  struct MpqChainSpec {
    ClientVersion version;
    std::span<const ChainEntry> baseEntries;
    PatchScheme patchScheme = PatchScheme::None;
  };

  struct ChainMember {
    std::filesystem::path path; 
    bool isDirectory = false; 
    bool incremental = false; 
    std::string prefix; 
  };

  const MpqChainSpec* findChainSpec(const ClientVersion& version);

  Result<std::vector<ChainMember>>
  expandChain(const MpqChainSpec& spec, const std::filesystem::path& dataDir, Locale locale);
}