// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.

#pragma once
#include "AppResourceProvider.h"

namespace CalculatorUnitTests
{
    class CopyPasteManagerTest;
}

namespace CalculatorApp
{

#define QwordType 1
#define DwordType 2
#define WordType 3
#define ByteType 4
#define HexBase 5
#define DecBase 6
#define OctBase 7
#define BinBase 8

    class CopyPasteManager
    {
    public:
        static void CopyToClipboard(Platform::String^ stringToCopy);
        static concurrency::task<Platform::String^> GetStringToPaste(CalculatorApp::Common::ViewMode mode, CalculatorApp::Common::CategoryGroupType modeType, int programmerNumberBase = -1, int bitLengthType = -1);
        static bool HasStringToPaste()
        {
            return ClipboardTextFormat() >= 0;
        }

        static constexpr auto PasteErrorString = L"NoOp";

    private:
        static int ClipboardTextFormat();
        static Platform::String^ ValidatePasteExpression(
            Platform::String^ pastedText,
            CalculatorApp::Common::ViewMode mode,
            int programmerNumberBase,
            int bitLengthType);
        static Platform::String^ ValidatePasteExpression(
            Platform::String^ pastedText,
            CalculatorApp::Common::ViewMode mode,
            CalculatorApp::Common::CategoryGroupType modeType,
            int programmerNumberBase,
            int bitLengthType);

        static std::vector<std::wstring> ExtractOperands(const std::wstring& pasteExpression, CalculatorApp::Common::ViewMode mode, int programmerNumberBase = -1, int bitLengthType = -1);
        static bool ExpressionRegExMatch(std::vector<std::wstring> operands, CalculatorApp::Common::ViewMode mode, CalculatorApp::Common::CategoryGroupType modeType, int programmerNumberBase = -1, int bitLengthType = -1);

        static std::pair<size_t, uint64_t> GetMaxOperandLengthAndValue(CalculatorApp::Common::ViewMode mode, CalculatorApp::Common::CategoryGroupType modeType, int programmerNumberBase = -1, int bitLengthType = -1);
        static std::wstring SanitizeOperand(const std::wstring& operand);
        static bool TryOperandToULL(const std::wstring& operand, int numberBase, unsigned long long int& result);
        static size_t OperandLength(std::wstring operand, CalculatorApp::Common::ViewMode mode, CalculatorApp::Common::CategoryGroupType modeType, int programmerNumberBase = -1);
        static size_t StandardScientificOperandLength(std::wstring operand);
        static size_t ProgrammerOperandLength(const std::wstring& operand, int numberBase);

        static constexpr size_t MaxStandardOperandLength = 16;
        static constexpr size_t MaxScientificOperandLength = 32;
        static constexpr size_t MaxConverterInputLength = 16;
        static constexpr size_t MaxOperandCount = 100;
        static constexpr size_t MaxPasteableLength = 512;
        static constexpr size_t MaxExponentLength = 4;
        static constexpr size_t MaxProgrammerBitLength = 64;

        static Platform::String^ supportedFormats[];

        friend class CalculatorUnitTests::CopyPasteManagerTest;
    };
}