trainings/CreatingReliableSoftwareCpp/Presentation/good_practise_kiss.md

KISS

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keep it simple, stupid

• Writing only enough code to pass a unit test, which relates to TDD and the first SOLID principle – Single Responsibility.
• Intuitive approaches to writing software, approachable and simply understood by everyone.

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Small understandable classes and methods

class ImageStorage {
public:
    Image* getImage(const std::string& url) {
        const auto it = std::ranges::find_if(images_, [&url](const auto& image) { return image->url() == url; });
        if (it != std::cend(images_)) {
            return it->get();
        }

        return nullptr;
    }

    Image* store(std::unique_ptr<Image>&& image) {
        if (const auto* image = getImage()) {
            return image;
        }

        images_.push_back(std::move(image));
        return images_.back().get();
    }

private:
    std::vector<std::unique_ptr<Image>> images_;
};