//
//  DateTimeEditComponent.h
//
//  Date and time edit component.
//

#pragma once
#ifndef ES_CORE_COMPONENTS_DATE_TIME_EDIT_COMPONENT_H
#define ES_CORE_COMPONENTS_DATE_TIME_EDIT_COMPONENT_H

#include "utils/TimeUtil.h"
#include "GuiComponent.h"

class TextCache;

// Used to enter or display a specific point in time.
class DateTimeEditComponent : public GuiComponent
{
public:
    enum DisplayMode{
        DISP_DATE,
        DISP_DATE_TIME,
        DISP_RELATIVE_TO_NOW
    };

    DateTimeEditComponent(Window* window, DisplayMode dispMode = DISP_DATE);

    void setValue(const std::string& val) override;
    std::string getValue() const override;

    bool input(InputConfig* config, Input input) override;
    void update(int deltaTime) override;
    unsigned int getColor() const override { return mColor; };
    void render(const Transform4x4f& parentTrans) override;
    void onSizeChanged() override;

    // Set how the point in time will be displayed:
    //  * DISP_DATE - only display the date.
    //  * DISP_DATE_TIME - display both the date and the time on that date.
    //  * DISP_RELATIVE_TO_NOW - intelligently display the point in time relative to
    //    right now (e.g. "5 secs ago", "3 minutes ago", "1 day ago".
    //    Automatically updates as time marches on.
    // The initial value is DISP_DATE.
    void setDisplayMode(DisplayMode mode);

     // Text color.
    void setColor(unsigned int color) override;
    // Font to use. Default is Font::get(FONT_SIZE_MEDIUM).
    void setFont(std::shared_ptr<Font> font);
    // Force text to be uppercase when in DISP_RELATIVE_TO_NOW mode.
    void setUppercase(bool uppercase);

    virtual void applyTheme(const std::shared_ptr<ThemeData>& theme, const std::string& view,
            const std::string& element, unsigned int properties) override;

    virtual std::vector<HelpPrompt> getHelpPrompts() override;

private:
    std::shared_ptr<Font> getFont() const;

    std::string getDisplayString(DisplayMode mode) const;
    DisplayMode getCurrentDisplayMode() const;

    void updateTextCache();

    Utils::Time::DateTime mTime;
    Utils::Time::DateTime mTimeBeforeEdit;

    bool mEditing;
    int mEditIndex;
    DisplayMode mDisplayMode;

    int mRelativeUpdateAccumulator;

    std::unique_ptr<TextCache> mTextCache;
    std::vector<Vector4f> mCursorBoxes;

    unsigned int mColor;
    std::shared_ptr<Font> mFont;
    bool mUppercase;
    bool mAutoSize;
};

#endif // ES_CORE_COMPONENTS_DATE_TIME_COMPONENT_H