/*
 *   This file is part of Checkpoint
 *   Copyright (C) 2017-2019 Bernardo Giordano, FlagBrew
 *
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 *   Additional Terms 7.b and 7.c of GPLv3 apply to this file:
 *       * Requiring preservation of specified reasonable legal notices or
 *         author attributions in that material or in the Appropriate Legal
 *         Notices displayed by works containing it.
 *       * Prohibiting misrepresentation of the origin of that material,
 *         or requiring that modified versions of such material be marked in
 *         reasonable ways as different from the original version.
 */

#ifndef IHID_HPP
#define IHID_HPP

#include "common.hpp"
#include <cmath>
#include <cstdint>

typedef uint64_t u64;

class IHid {
public:
    IHid(size_t entries, size_t columns) : mMaxVisibleEntries(entries), mColumns(columns)
    {
        reset();
        mMaxPages    = 0;
        mCurrentTime = 0;
        mLastTime    = 0;
        mDelayTicks  = 1e10;
    }

    virtual ~IHid(void) {}

    size_t fullIndex(void) const;
    size_t index(void) const;
    void index(size_t v);
    size_t maxEntries(size_t max) const;
    size_t maxVisibleEntries(void) const;
    int page(void) const;
    void page(int v);
    void reset(void);
    void pageBack(size_t count);
    void pageForward(size_t count);

protected:
    void page_back(void);
    void page_forward(void);
    virtual void update(size_t count) = 0;

    virtual u64 down(void)       = 0;
    virtual u64 held(void)       = 0;
    virtual u64 tick(void)       = 0;
    virtual u64 _KEY_ZL(void)    = 0;
    virtual u64 _KEY_ZR(void)    = 0;
    virtual u64 _KEY_LEFT(void)  = 0;
    virtual u64 _KEY_RIGHT(void) = 0;
    virtual u64 _KEY_UP(void)    = 0;
    virtual u64 _KEY_DOWN(void)  = 0;

    size_t mIndex;
    int mPage;
    size_t mMaxPages;
    size_t mMaxVisibleEntries;
    size_t mColumns;
    u64 mCurrentTime;
    u64 mLastTime;
    u64 mDelayTicks;
};

class IHidVertical : public IHid {
public:
    IHidVertical(size_t entries, size_t columns) : IHid(entries, columns) {}

    virtual ~IHidVertical(void) {}

    void update(size_t count) override;
};

class IHidHorizontal : public IHid {
public:
    IHidHorizontal(size_t entries, size_t columns) : IHid(entries, columns) {}

    virtual ~IHidHorizontal(void) {}

    void update(size_t count) override;
};

#endif