Program Listing for File get_innoculum_filename.hpp

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#pragma once
#ifndef DISH2_LOAD_GET_INNOCULUM_FILENAME_HPP_INCLUDE
#define DISH2_LOAD_GET_INNOCULUM_FILENAME_HPP_INCLUDE

#include <algorithm>
#include <iterator>
#include <string>
#include <unordered_map>

#include "../../../third-party/conduit/include/uitsl/polyfill/filesystem.hpp"
#include "../../../third-party/conduit/include/uitsl/utility/keyname_directory_filter.hpp"
#include "../../../third-party/Empirical/include/emp/base/always_assert.hpp"
#include "../../../third-party/Empirical/include/emp/base/vector.hpp"
#include "../../../third-party/Empirical/include/emp/tools/keyname_utils.hpp"
#include "../../../third-party/Empirical/include/emp/tools/string_utils.hpp"

#include "../load/count_root_ids.hpp"
#include "../load/get_root_ids.hpp"

namespace dish2 {

std::string get_innoculum_filename( const size_t root_id ) {

  using dir_it_t = std::filesystem::directory_iterator;

  const std::unordered_map<std::string, std::string> filter_attrs{
    {"a", "genome|population"},
    {"root_id", emp::to_string( root_id )},
    {"ext", R"(\.bin|\.bin\.gz|\.bin\.xz|\.json\.gz|\.json\.xz|\.json)"}
  };

  auto innoculum_paths = uitsl::keyname_directory_filter(
    filter_attrs, ".", true
  );

  emp_always_assert(
    innoculum_paths.size() == 1,
    innoculum_paths.size(),
    root_id,
    std::distance( dir_it_t( "." ), dir_it_t() ),
    dish2::count_root_ids(),
    emp::to_string( dish2::get_root_ids() ),
    emp::keyname::pack(filter_attrs)
  );

  return innoculum_paths.front();

}

} // namespace dish2

#endif // #ifndef DISH2_LOAD_GET_INNOCULUM_FILENAME_HPP_INCLUDE