stateset.hpp

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#pragma once
 
 
#include <prom/metric_base.hpp>
 
#include <string>
#include <string_view>
#include <utility>
#include <vector>
 
namespace prom {
 
struct StateSetSpec {
    std::string_view name{};
    std::string_view help{};
    Labels labels{};
    comms::DisplayInfo display{};
    std::vector<std::string> states{};
};
 
class StateSet : public MetricBase<StateSet> {
public:
    StateSet(const std::string_view name, const std::string_view help)
        : MetricBase(MetricType::StateSet, name, help) {}
 
    explicit StateSet(const StateSetSpec& spec)
        : MetricBase(MetricType::StateSet, spec.name, spec.help) {
        core_->base_labels = spec.labels;
        core_->const_labels = spec.labels;
        core_->base_display = spec.display;
        core_->display = spec.display;
        core_->states = spec.states;
    }
 
    explicit StateSet(std::shared_ptr<MetricCore> core) : MetricBase(std::move(core)) {}
 
    void set(const std::string_view state, const bool active) const noexcept {
        const auto [adapter, handle] = this->bind();
        adapter->set_state(handle, state, active);
    }
 
    [[nodiscard]] StateSet labels(const Labels& dynamic) const noexcept {
        return make_child(dynamic);
    }
};
 
}  // namespace prom