step.h

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#pragma once
 
#include "config.h"
#include "di/function/container/function.h"
#include "di/reflect/prelude.h"
 
namespace pm {
class Package;
 
enum class StepKind {
    Download,
    Patch,
    Configure,
    Build,
    Install,
    Clean,
};
 
constexpr auto tag_invoke(di::Tag<di::reflect>, di::InPlaceType<StepKind>) {
    using enum StepKind;
    return di::make_enumerators<"StepKind">(di::enumerator<"download", Download>, di::enumerator<"patch", Patch>,
                                            di::enumerator<"configure", Configure>, di::enumerator<"build", Build>,
                                            di::enumerator<"install", Install>, di::enumerator<"clean", Clean>);
}
 
class Step {
public:
    explicit Step(StepKind kind, di::Function<di::Result<>(Config const&, Package&)> action)
        : m_kind(kind), m_action(di::move(action)) {}
 
    auto kind() const { return m_kind; }
    auto run(Config const& config, Package& package) { return m_action(config, package); }
 
private:
    StepKind m_kind;
    di::Function<di::Result<>(Config const&, Package&)> m_action;
};
}