LazyStudy/include/Lazy.h

#pragma once

#include <string>
#include <vector>
#include <memory>

enum class LazyType
{
    Title,
    Text,
    Image,
};

class LazyElement
{
public:
    virtual LazyType GetType() const = 0;
};

class LazyTitle : public LazyElement
{
private:
    std::string m_Title;
    std::uint8_t m_TitleLevel;

public:
    LazyTitle(const std::string &title, const std::uint8_t level) : m_Title(title), m_TitleLevel(level) {}
    virtual LazyType GetType() const override
    {
        return LazyType::Title;
    };

    const std::string &GetTitle() const
    {
        return m_Title;
    }

    int GetTitleLevel() const
    {
        return m_TitleLevel;
    }
};

class LazyText : public LazyElement
{
private:
    std::string m_Text;

public:
    LazyText(const std::string &text) : m_Text(text) {}
    virtual LazyType GetType() const override
    {
        return LazyType::Text;
    };

    const std::string &GetText() const
    {
        return m_Text;
    }
};

class LazyImage : public LazyElement
{
private:
    std::string m_ImageLink;
    std::string m_ImageAlt;

public:
    LazyImage(const std::string &link, const std::string &alt) : m_ImageLink(link), m_ImageAlt(alt) {}
    virtual LazyType GetType() const override
    {
        return LazyType::Image;
    };

    const std::string &GetAlt() const
    {
        return m_ImageAlt;
    }

    const std::string &GetLink() const
    {
        return m_ImageLink;
    }
};

typedef std::vector<std::unique_ptr<LazyElement>> ElementList;

class LazyFile
{
private:
    ElementList m_Elements;

public:
    void AddImage(const std::string &link, const std::string &alt) {
        m_Elements.push_back(std::make_unique<LazyImage>(link, alt));
    }

    void AddTitle(const std::string &title, const std::uint8_t level) {
        m_Elements.push_back(std::make_unique<LazyTitle>(title, level));
    }

    void AddText(const std::string& text) {
        m_Elements.push_back(std::make_unique<LazyText>(text));
    }

    const ElementList& GetElements() const {
        return m_Elements;
    }
};

std::string RenderHtml(const LazyFile& lazy);
LazyFile ReadLazyFile(const std::string& filePath);