geode/loader/include/Geode/utils/VersionInfo.hpp

#pragma once

#include <Geode/DefaultInclude.hpp>
#include <string_view>
#include "json.hpp"

namespace geode {
    /**
     * Class representing version
     * information
     * @class VersionInfo
     */
    class GEODE_DLL VersionInfo {
    public:
        enum Compare : char {
            // Other version is lower or exactly the same
            Lower,
            // Other version is exactly the same
            Exact,
            // Other version is higher or exactly the same
            Higher,
            // Other version does not even have to match lol
            Any,
        };

    protected:
        int m_major = 1;
        int m_minor = 0;
        int m_patch = 0;

    public:
        VersionInfo() = default;
        
        constexpr VersionInfo(int major, int minor, int patch) {
            m_major = major;
            m_minor = minor;
            m_patch = patch;
        }

        VersionInfo(char const* versionString);
        VersionInfo(std::string const& versionString);

        int getMajor() const;
        int getMinor() const;
        int getPatch() const;

        bool operator<(VersionInfo const& other) const;
        bool operator<=(VersionInfo const& other) const;
        bool operator>(VersionInfo const& other) const;
        bool operator>=(VersionInfo const& other) const;
        bool operator==(VersionInfo const& other) const;

        bool match(VersionInfo const& other) const;
        bool match(VersionInfo const& other, VersionInfo::Compare compare) const;
        bool match(
            VersionInfo const& other, VersionInfo::Compare major, VersionInfo::Compare minor,
            VersionInfo::Compare patch
        ) const;

        static bool validate(std::string const& string);

        std::string toString() const;
    };

    void GEODE_DLL to_json(nlohmann::json& json, VersionInfo const& info);

    inline std::ostream& operator<<(std::ostream& stream, VersionInfo const& version) {
        stream << version.toString();
        return stream;
    }
}