// Solutions to the Advent Of Code 2024.
// Copyright (C) 2025  Stefan Müller
//
// 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/>.

#pragma once

#include <array>
#include <functional>

#include <aoc/extra/ChronospatialComputerOperandType.hpp>
#include <aoc/extra/ChronospatialComputerState.hpp>

class ChronospatialComputerInstruction
{
public:
    ChronospatialComputerInstruction(const ChronospatialComputerOperandType type);
    virtual ~ChronospatialComputerInstruction() = default;
    void run(ChronospatialComputerState& state, const int operand) const;
protected:
    virtual void runValue(ChronospatialComputerState& state, const int operandValue) const = 0;
private:
    std::function<int(const std::array<int64_t, 3>&, const int)> operandFunctor_;
};

#pragma region ChronospatialComputerDivisionInstruction

// Represents instruction "adv" (opcode 0), "bdv" (opcode 6), or "cdv" (opcode 7).
class ChronospatialComputerDivisionInstruction
    : public ChronospatialComputerInstruction
{
public:
    ChronospatialComputerDivisionInstruction(const size_t destination);
protected:
    virtual void runValue(ChronospatialComputerState& state, const int operandValue) const override;
private:
    size_t destination_;
};

#pragma endregion

#pragma region ChronospatialComputerXorLiteralInstruction

// Represents instruction "bxl" (opcode 1).
class ChronospatialComputerXorLiteralInstruction
    : public ChronospatialComputerInstruction
{
public:
    ChronospatialComputerXorLiteralInstruction();
protected:
    virtual void runValue(ChronospatialComputerState& state, const int operandValue) const override;
};

#pragma endregion

#pragma region ChronospatialComputerModuloInstruction

// Represents instruction "bst" (opcode 2).
class ChronospatialComputerModuloInstruction
    : public ChronospatialComputerInstruction
{
public:
    ChronospatialComputerModuloInstruction();
protected:
    virtual void runValue(ChronospatialComputerState& state, const int operandValue) const override;
};

#pragma endregion

#pragma region ChronospatialComputerJumpInstruction

// Represents instruction "jnz" (opcode 3).
class ChronospatialComputerJumpInstruction
    : public ChronospatialComputerInstruction
{
public:
    ChronospatialComputerJumpInstruction();
protected:
    virtual void runValue(ChronospatialComputerState& state, const int operandValue) const override;
};

#pragma endregion

#pragma region ChronospatialComputerXorRegisterInstruction

// Represents instruction "bxc" (opcode 4).
class ChronospatialComputerXorRegisterInstruction
    : public ChronospatialComputerInstruction
{
public:
    ChronospatialComputerXorRegisterInstruction();
protected:
    virtual void runValue(ChronospatialComputerState& state, const int operandValue) const override;
};

#pragma endregion

#pragma region ChronospatialComputerOutInstruction

// Represents instruction "out" (opcode 5).
class ChronospatialComputerOutInstruction
    : public ChronospatialComputerInstruction
{
public:
    ChronospatialComputerOutInstruction();
protected:
    virtual void runValue(ChronospatialComputerState& state, const int operandValue) const override;
};

#pragma endregion