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#pragma once
#include <cctype>
#include <deque>
#include <functional>
#include <memory>
#include <tsl/ordered_map.h>
#include <tsl/ordered_set.h>
#include "openvic-simulation/utility/StringUtils.hpp"
#include "openvic-simulation/utility/Utility.hpp"
namespace OpenVic {
struct ordered_container_string_hash {
using is_transparent = void;
[[nodiscard]] size_t operator()(char const* txt) const {
return std::hash<std::string_view> {}(txt);
}
[[nodiscard]] size_t operator()(std::string_view txt) const {
return std::hash<std::string_view> {}(txt);
}
[[nodiscard]] size_t operator()(std::string const& txt) const {
return std::hash<std::string> {}(txt);
}
};
template<typename T>
struct container_hash : std::hash<T> {};
template<>
struct container_hash<std::string> : ordered_container_string_hash {};
template<>
struct container_hash<std::string_view> : ordered_container_string_hash {};
template<>
struct container_hash<char const*> : ordered_container_string_hash {};
// Useful for contiguous memory
template<
class Key, class T, class Hash = container_hash<Key>, class KeyEqual = std::equal_to<>,
class Allocator = std::allocator<std::pair<Key, T>>, class IndexType = std::uint_least32_t>
using vector_ordered_map =
tsl::ordered_map<Key, T, Hash, KeyEqual, Allocator, std::vector<std::pair<Key, T>, Allocator>, IndexType>;
// Useful for stable memory addresses (so long as you don't remove or insert values)
template<
class Key, class T, class Hash = container_hash<Key>, class KeyEqual = std::equal_to<>,
class Allocator = std::allocator<std::pair<Key, T>>, class IndexType = std::uint_least32_t>
using deque_ordered_map =
tsl::ordered_map<Key, T, Hash, KeyEqual, Allocator, std::deque<std::pair<Key, T>, Allocator>, IndexType>;
template<
class Key, class T, class Hash = container_hash<Key>, class KeyEqual = std::equal_to<>,
class Allocator = std::allocator<std::pair<Key, T>>, class IndexType = std::uint_least32_t>
using ordered_map = vector_ordered_map<Key, T, Hash, KeyEqual, Allocator, IndexType>;
// Useful for contiguous memory
template<
class Key, class Hash = container_hash<Key>, class KeyEqual = std::equal_to<>, class Allocator = std::allocator<Key>,
class IndexType = std::uint_least32_t>
using vector_ordered_set = tsl::ordered_set<Key, Hash, KeyEqual, Allocator, std::vector<Key, Allocator>, IndexType>;
// Useful for stable memory addresses (so long as you don't remove or insert values)
template<
class Key, class Hash = container_hash<Key>, class KeyEqual = std::equal_to<>, class Allocator = std::allocator<Key>,
class IndexType = std::uint_least32_t>
using deque_ordered_set = tsl::ordered_set<Key, Hash, KeyEqual, Allocator, std::deque<Key, Allocator>, IndexType>;
template<
class Key, class Hash = container_hash<Key>, class KeyEqual = std::equal_to<>, class Allocator = std::allocator<Key>,
class IndexType = std::uint_least32_t>
using ordered_set = vector_ordered_set<Key, Hash, KeyEqual, Allocator, IndexType>;
template<typename T>
concept IsOrderedMap = utility::is_derived_from_specialization_of<T, tsl::ordered_map>;
template<typename T>
concept IsOrderedSet = utility::is_derived_from_specialization_of<T, tsl::ordered_set>;
template<typename T>
concept IsVectorOrderedMap = utility::is_derived_from_specialization_of<T, vector_ordered_map>;
template<typename T>
concept IsVectorOrderedSet = utility::is_derived_from_specialization_of<T, vector_ordered_set>;
template<typename T>
concept IsDequeOrderedMap = utility::is_derived_from_specialization_of<T, deque_ordered_map>;
template<typename T>
concept IsDequeOrderedSet = utility::is_derived_from_specialization_of<T, deque_ordered_set>;
template<typename T, typename Key, typename Value>
concept IsOrderedMapOf =
IsOrderedMap<T> && std::same_as<Key, typename T::key_type> && std::same_as<Value, typename T::mapped_type>;
template<typename T, typename Key>
concept IsOrderedSetOf = IsOrderedSet<T> && std::same_as<Key, typename T::key_type>;
template<typename T, typename Key, typename Value>
concept IsVectorOrderedMapOf =
IsVectorOrderedMap<T> && std::same_as<Key, typename T::key_type> && std::same_as<Value, typename T::mapped_type>;
template<typename T, typename Key>
concept IsVectorOrderedSetOf = IsVectorOrderedSet<T> && std::same_as<Key, typename T::key_type>;
template<typename T, typename Key, typename Value>
concept IsDequeOrderedMapOf =
IsDequeOrderedMap<T> && std::same_as<Key, typename T::key_type> && std::same_as<Value, typename T::mapped_type>;
template<typename T, typename Key>
concept IsDequeOrderedSetOf = IsDequeOrderedSet<T> && std::same_as<Key, typename T::key_type>;
/* Case-Insensitive Containers */
struct case_insensitive_string_hash {
using is_transparent = void;
private:
/* Based on the byte array hashing functions in MSVC's <type_traits>. */
[[nodiscard]] static constexpr size_t _hash_bytes_case_insensitive(char const* first, size_t count) {
constexpr size_t _offset_basis = 14695981039346656037ULL;
constexpr size_t _prime = 1099511628211ULL;
size_t hash = _offset_basis;
for (size_t i = 0; i < count; ++i) {
hash ^= static_cast<size_t>(std::tolower(static_cast<unsigned char>(first[i])));
hash *= _prime;
}
return hash;
}
public:
[[nodiscard]] constexpr size_t operator()(char const* txt) const {
return operator()(std::string_view { txt });
}
[[nodiscard]] constexpr size_t operator()(std::string_view txt) const {
return _hash_bytes_case_insensitive(txt.data(), txt.length());
}
[[nodiscard]] constexpr size_t operator()(std::string const& txt) const {
return _hash_bytes_case_insensitive(txt.data(), txt.length());
}
};
struct case_insensitive_string_equal {
using is_transparent = void;
[[nodiscard]] constexpr bool operator()(std::string_view const& lhs, std::string_view const& rhs) const {
return StringUtils::strings_equal_case_insensitive(lhs, rhs);
}
};
// Useful for contiguous memory
template<class Key, class T, class Allocator = std::allocator<std::pair<Key, T>>, class IndexType = std::uint_least32_t>
using case_insensitive_vector_ordered_map =
vector_ordered_map<Key, T, case_insensitive_string_hash, case_insensitive_string_equal, Allocator, IndexType>;
// Useful for stable memory addresses (so long as you don't remove or insert values)
template<class Key, class T, class Allocator = std::allocator<std::pair<Key, T>>, class IndexType = std::uint_least32_t>
using case_insensitive_deque_ordered_map =
deque_ordered_map<Key, T, case_insensitive_string_hash, case_insensitive_string_equal, Allocator, IndexType>;
template<class Key, class T, class Allocator = std::allocator<std::pair<Key, T>>, class IndexType = std::uint_least32_t>
using case_insensitive_ordered_map = case_insensitive_vector_ordered_map<Key, T, Allocator, IndexType>;
// Useful for contiguous memory
template<class Key, class Allocator = std::allocator<Key>, class IndexType = std::uint_least32_t>
using case_insensitive_vector_ordered_set =
vector_ordered_set<Key, case_insensitive_string_hash, case_insensitive_string_equal, Allocator, IndexType>;
// Useful for stable memory addresses (so long as you don't remove or insert values)
template<class Key, class Allocator = std::allocator<Key>, class IndexType = std::uint_least32_t>
using case_insensitive_deque_ordered_set =
deque_ordered_set<Key, case_insensitive_string_hash, case_insensitive_string_equal, Allocator, IndexType>;
template<class Key, class Allocator = std::allocator<Key>, class IndexType = std::uint_least32_t>
using case_insensitive_ordered_set = case_insensitive_vector_ordered_set<Key, Allocator, IndexType>;
template<typename Case>
concept StringMapCase = requires(std::string_view identifier) {
{ typename Case::hash {}(identifier) } -> std::same_as<std::size_t>;
{ typename Case::equal {}(identifier, identifier) } -> std::same_as<bool>;
};
struct StringMapCaseSensitive {
using hash = container_hash<std::string>;
using equal = std::equal_to<>;
};
struct StringMapCaseInsensitive {
using hash = case_insensitive_string_hash;
using equal = case_insensitive_string_equal;
};
/* Intermediate struct that "remembers" Case, instead of just decomposing it into its hash and equal components,
* needed so that templates can deduce the Case with which a type was defined. */
template<template<typename...> typename Container, StringMapCase Case, typename... Args>
struct template_case_container_t : Container<Args..., typename Case::hash, typename Case::equal> {
using container_t = Container<Args..., typename Case::hash, typename Case::equal>;
using container_t::container_t;
using case_t = Case;
};
/* Template for map with string keys, supporting search by string_view without creating an intermediate string. */
template<typename T, StringMapCase Case>
using template_string_map_t = template_case_container_t<ordered_map, Case, std::string, T>;
template<typename T>
using string_map_t = template_string_map_t<T, StringMapCaseSensitive>;
template<typename T>
using case_insensitive_string_map_t = template_string_map_t<T, StringMapCaseInsensitive>;
/* Template for set with string elements, supporting search by string_view without creating an intermediate string. */
template<StringMapCase Case>
using template_string_set_t = template_case_container_t<ordered_set, Case, std::string>;
using string_set_t = template_string_set_t<StringMapCaseSensitive>;
using case_insensitive_string_set_t = template_string_set_t<StringMapCaseInsensitive>;
}
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