DateInputView.h

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#pragma once
 
#include "cdc_ui/IView.h"
#include <cstdint>
 
namespace cdc::ui {

class DateInputView : public ViewBase {
public:
    using ConfirmCallback = void(*)(uint8_t day, uint8_t month, uint16_t year);

    using CancelCallback = void(*)();

    void init(const char* title, uint8_t day, uint8_t month, uint16_t year);

    void setOnConfirm(ConfirmCallback callback) { onConfirm_ = callback; }

    void setOnCancel(CancelCallback callback) { onCancel_ = callback; }

    uint8_t getDay() const { return day_; }
    uint8_t getMonth() const { return month_; }
    uint16_t getYear() const { return year_; }
 
    // IView implementation
    void render(bool partial) override;
    InputResult onKey(char key) override;
    const char* getName() const override { return "DateInputView"; }
    const char* getFooterHint() const override;
 
private:
    enum class Field : uint8_t { DAY = 0, MONTH = 1, YEAR = 2 };
 
    const char* title_ = nullptr;
    uint8_t day_ = 1;
    uint8_t month_ = 1;
    uint16_t year_ = 2026;
    Field currentField_ = Field::DAY;
    uint8_t digitPos_ = 0;  // Position within current field
    ConfirmCallback onConfirm_ = nullptr;
    CancelCallback onCancel_ = nullptr;
 
    void nextField();
    void prevField();
    void clearField();
    void enterDigit(char digit);
    bool validateAndClamp();
};
 
} // namespace cdc::ui