accounts.hpp

См. документацию.

#pragma once
 
#include <array>
#include <cstdint>
#include <string_view>
 
enum class AccountType : uint8_t {
  ACTIVE         = 0,
  PASSIVE        = 1,
  ACTIVE_PASSIVE = 2,
};
 
struct ledger2_accounts {
  // Активы
  static constexpr uint64_t INTANGIBLE_ASSETS         = 4 * 1000;    
  static constexpr uint64_t NON_CURRENT_INVESTMENTS   = 8 * 1000;    
  static constexpr uint64_t BANK_ACCOUNT              = 51 * 1000;   
  static constexpr uint64_t FINANCIAL_INVESTMENTS     = 58 * 1000;   
 
  // Пассивы
  static constexpr uint64_t SHARE_FUND                = 80 * 1000;   
  static constexpr uint64_t TARGET_RECEIPTS           = 86 * 1000;   
};
 
struct Ledger2AccountMeta {
  uint64_t         id;
  std::string_view name;
  AccountType      type;
};
 
inline constexpr std::array<Ledger2AccountMeta, 6> LEDGER2_ACCOUNT_MAP = {{
  { ledger2_accounts::INTANGIBLE_ASSETS,       "Нематериальные активы",                 AccountType::ACTIVE },
  { ledger2_accounts::NON_CURRENT_INVESTMENTS, "Вложения во внеоборотные активы",       AccountType::ACTIVE },
  { ledger2_accounts::BANK_ACCOUNT,            "Расчётный счёт",                        AccountType::ACTIVE },
  { ledger2_accounts::FINANCIAL_INVESTMENTS,   "Финансовые вложения",                   AccountType::ACTIVE },
  { ledger2_accounts::SHARE_FUND,              "Паевой фонд (складочный капитал)",      AccountType::PASSIVE },
  { ledger2_accounts::TARGET_RECEIPTS,         "Целевое финансирование",                AccountType::PASSIVE },
}};
 
static constexpr size_t LEDGER2_ACCOUNT_MAP_SIZE = LEDGER2_ACCOUNT_MAP.size();
 
// Compile-time проверка уникальности id в справочнике счетов.
namespace ledger2_accounts_detail {
  constexpr bool account_ids_unique() {
    for (size_t i = 0; i < LEDGER2_ACCOUNT_MAP_SIZE; ++i) {
      for (size_t j = i + 1; j < LEDGER2_ACCOUNT_MAP_SIZE; ++j) {
        if (LEDGER2_ACCOUNT_MAP[i].id == LEDGER2_ACCOUNT_MAP[j].id) return false;
      }
    }
    return true;
  }
}
 
static_assert(ledger2_accounts_detail::account_ids_unique(),
              "LEDGER2_ACCOUNT_MAP: duplicate account id detected");
 
inline constexpr const Ledger2AccountMeta* ledger2_find_account_meta(uint64_t account_id) {
  for (size_t i = 0; i < LEDGER2_ACCOUNT_MAP_SIZE; ++i) {
    if (LEDGER2_ACCOUNT_MAP[i].id == account_id) return &LEDGER2_ACCOUNT_MAP[i];
  }
  return nullptr;
}
 
inline std::string_view ledger2_get_account_name_by_id(uint64_t account_id) {
  const auto* meta = ledger2_find_account_meta(account_id);
  return meta ? meta->name : std::string_view{};
}
 
inline constexpr AccountType ledger2_get_account_type_by_id(uint64_t account_id) {
  const auto* meta = ledger2_find_account_meta(account_id);
  return meta ? meta->type : AccountType::ACTIVE_PASSIVE;
}