95 lines
3.3 KiB
C++
95 lines
3.3 KiB
C++
#pragma once
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#include "adminive/json.hpp"
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#include <functional>
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#include <string>
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#include <type_traits>
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#include <utility>
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namespace adminive {
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template <class T>
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struct Status_Value {
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using value_type = T;
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T value{};
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std::string color;
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};
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template <class T>
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Status_Value<std::remove_cvref_t<T>> status_value(T&& value, std::string color = {}) {
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return Status_Value<std::remove_cvref_t<T>>{std::forward<T>(value), std::move(color)};
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}
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template <class T>
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struct Is_Status_Value : std::false_type {};
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template <class T>
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struct Is_Status_Value<Status_Value<T>> : std::true_type {};
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template <class T>
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concept Status_Value_Type = Is_Status_Value<std::remove_cvref_t<T>>::value;
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template <class T>
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struct Status_Inner_Value {
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using type = std::remove_cvref_t<T>;
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};
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template <class T>
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struct Status_Inner_Value<Status_Value<T>> {
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using type = T;
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};
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template <class T>
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using Status_Inner_Value_Type = typename Status_Inner_Value<std::remove_cvref_t<T>>::type;
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template <class T>
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Json encode_status_field(const T& value) {
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if constexpr(Status_Value_Type<T>) {
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return Json{{"value", encode_json_value(value.value)}, {"color", value.color}};
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} else {
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return Json{{"value", encode_json_value(value)}};
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}
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}
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template <Described_Type T>
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Json to_status_descriptor_json() {
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const auto descriptor = describe<T>();
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Json fields = Json::array();
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std::apply([&](const auto&... item) {
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([&] {
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using Field = std::remove_cvref_t<decltype(item)>;
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using Member = typename Field::member_type;
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using Value = Status_Inner_Value_Type<Member>;
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Json field_json{{"name", item.name()}, {"label", item.label()}, {"value_type", value_type_name<Value>()}, {"color", Status_Value_Type<Member>}};
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if(!item.description().empty()) {
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field_json["description"] = item.description();
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}
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fields.push_back(std::move(field_json));
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}(), ...);
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}, descriptor.fields());
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return Json{{"protocol", "adminive.status"}, {"protocol_version", 1}, {"name", descriptor.name()}, {"label", descriptor.label()}, {"value_type", "status_object"}, {"fields", std::move(fields)}};
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}
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template <Described_Type T>
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Json to_status_json(const T& value) {
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const auto descriptor = describe<T>();
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Json result = Json::object();
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std::apply([&](const auto&... item) {
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([&] {
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using Field = std::remove_cvref_t<decltype(item)>;
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result[item.name()] = encode_status_field(value.*Field::member);
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}(), ...);
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}, descriptor.fields());
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return result;
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}
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template <auto Function>
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struct Member_Function_Traits;
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template <class Owner, class Result, Result (Owner::*Function)()>
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struct Member_Function_Traits<Function> {
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using owner_type = Owner;
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using result_type = Result;
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};
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template <class Owner, class Result, Result (Owner::*Function)() const>
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struct Member_Function_Traits<Function> {
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using owner_type = Owner;
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using result_type = Result;
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};
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template <class Owner, class Result, Result (Owner::*Function)() noexcept>
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struct Member_Function_Traits<Function> {
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using owner_type = Owner;
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using result_type = Result;
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};
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template <class Owner, class Result, Result (Owner::*Function)() const noexcept>
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struct Member_Function_Traits<Function> {
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using owner_type = Owner;
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using result_type = Result;
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};
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}
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