/* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
 * Use of this file is governed by the BSD 3-clause license that
 * can be found in the LICENSE.txt file in the project root.
 */

#pragma once

#include "antlr4-common.h"

namespace antlrcpp {

class ANTLR4CPP_PUBLIC Arrays {
public:
    static std::string listToString(
        const std::vector<std::string>& list, const std::string& separator);

    template<typename T>
    static bool equals(const std::vector<T>& a, const std::vector<T>& b) {
        if (a.size() != b.size())
            return false;

        for (size_t i = 0; i < a.size(); ++i)
            if (!(a[i] == b[i]))
                return false;

        return true;
    }

    template<typename T>
    static bool equals(const std::vector<T*>& a, const std::vector<T*>& b) {
        if (a.size() != b.size())
            return false;

        for (size_t i = 0; i < a.size(); ++i) {
            if (a[i] == b[i])
                continue;
            if (!(*a[i] == *b[i]))
                return false;
        }

        return true;
    }

    template<typename T>
    static bool equals(const std::vector<Ref<T>>& a, const std::vector<Ref<T>>& b) {
        if (a.size() != b.size())
            return false;

        for (size_t i = 0; i < a.size(); ++i) {
            if (!a[i] && !b[i])
                continue;
            if (!a[i] || !b[i])
                return false;
            if (a[i] == b[i])
                continue;

            if (!(*a[i] == *b[i]))
                return false;
        }

        return true;
    }

    template<typename T>
    static std::string toString(const std::vector<T>& source) {
        std::string result = "[";
        bool firstEntry = true;
        for (auto& value : source) {
            result += value.toString();
            if (firstEntry) {
                result += ", ";
                firstEntry = false;
            }
        }
        return result + "]";
    }

    template<typename T>
    static std::string toString(const std::vector<Ref<T>>& source) {
        std::string result = "[";
        bool firstEntry = true;
        for (auto& value : source) {
            result += value->toString();
            if (firstEntry) {
                result += ", ";
                firstEntry = false;
            }
        }
        return result + "]";
    }

    template<typename T>
    static std::string toString(const std::vector<T*>& source) {
        std::string result = "[";
        bool firstEntry = true;
        for (auto value : source) {
            result += value->toString();
            if (firstEntry) {
                result += ", ";
                firstEntry = false;
            }
        }
        return result + "]";
    }
};

template<>
std::string Arrays::toString(const std::vector<antlr4::tree::ParseTree*>& source);
} // namespace antlrcpp
