#include <asset.h>

CAmountMap& operator+=(CAmountMap& a, const CAmountMap& b)
{
    for(std::map<CAsset, CAmount>::const_iterator it = b.begin(); it != b.end(); ++it)
        a[it->first] += it->second;
    return a;
}

CAmountMap& operator-=(CAmountMap& a, const CAmountMap& b)
{
    for(std::map<CAsset, CAmount>::const_iterator it = b.begin(); it != b.end(); ++it)
        a[it->first] -= it->second;
    return a;
}

CAmountMap operator+(const CAmountMap& a, const CAmountMap& b)
{
    CAmountMap c;
    for(std::map<CAsset, CAmount>::const_iterator it = a.begin(); it != a.end(); ++it)
        c[it->first] += it->second;
    for(std::map<CAsset, CAmount>::const_iterator it = b.begin(); it != b.end(); ++it)
        c[it->first] += it->second;
    return c;
}

CAmountMap operator-(const CAmountMap& a, const CAmountMap& b)
{
    CAmountMap c;
    for(std::map<CAsset, CAmount>::const_iterator it = a.begin(); it != a.end(); ++it)
        c[it->first] += it->second;
    for(std::map<CAsset, CAmount>::const_iterator it = b.begin(); it != b.end(); ++it)
        c[it->first] -= it->second;
    return c;
}

bool operator<(const CAmountMap& a, const CAmountMap& b)
{
    bool smallerElement = false;
    for(std::map<CAsset, CAmount>::const_iterator it = b.begin(); it != b.end(); ++it) {
        CAmount aValue = a.count(it->first) ? a.find(it->first)->second : 0;
        if (aValue > it->second)
            return false;
        if (aValue < it->second)
            smallerElement = true;
    }
    for(std::map<CAsset, CAmount>::const_iterator it = a.begin(); it != a.end(); ++it) {
        CAmount bValue = b.count(it->first) ? b.find(it->first)->second : 0;
        if (it->second > bValue)
            return false;
        if (it->second < bValue)
            smallerElement = true;
    }
    return smallerElement;
}

bool operator<=(const CAmountMap& a, const CAmountMap& b)
{
    for(std::map<CAsset, CAmount>::const_iterator it = b.begin(); it != b.end(); ++it) {
        CAmount aValue = a.count(it->first) ? a.find(it->first)->second : 0;
        if (aValue > it->second)
            return false;
    }
    for(std::map<CAsset, CAmount>::const_iterator it = a.begin(); it != a.end(); ++it) {
        CAmount bValue = b.count(it->first) ? b.find(it->first)->second : 0;
        if (it->second > bValue)
            return false;
    }
    return true;
}

bool operator>(const CAmountMap& a, const CAmountMap& b)
{
    bool largerElement = false;
    for(std::map<CAsset, CAmount>::const_iterator it = b.begin(); it != b.end(); ++it) {
        CAmount aValue = a.count(it->first) ? a.find(it->first)->second : 0;
        if (aValue < it->second)
            return false;
        if (aValue > it->second)
            largerElement = true;
    }
    for(std::map<CAsset, CAmount>::const_iterator it = a.begin(); it != a.end(); ++it) {
        CAmount bValue = b.count(it->first) ? b.find(it->first)->second : 0;
        if (it->second < bValue)
            return false;
        if (it->second > bValue)
            largerElement = true;
    }
    return largerElement;
}

bool operator>=(const CAmountMap& a, const CAmountMap& b)
{
    for(std::map<CAsset, CAmount>::const_iterator it = b.begin(); it != b.end(); ++it) {
        if ((a.count(it->first) ? a.find(it->first)->second : 0) < it->second)
            return false;
    }
    for(std::map<CAsset, CAmount>::const_iterator it = a.begin(); it != a.end(); ++it) {
        if (it->second < (b.count(it->first) ? b.find(it->first)->second : 0))
            return false;
    }
    return true;
}

bool operator==(const CAmountMap& a, const CAmountMap& b)
{
    for(std::map<CAsset, CAmount>::const_iterator it = a.begin(); it != a.end(); ++it) {
        if ((b.count(it->first) ? b.find(it->first)->second : 0) != it->second)
            return false;
    }
    for(std::map<CAsset, CAmount>::const_iterator it = b.begin(); it != b.end(); ++it) {
        if ((a.count(it->first) ? a.find(it->first)->second : 0) != it->second)
            return false;
    }
    return true;
}

bool operator!=(const CAmountMap& a, const CAmountMap& b)
{
    return !(a == b);
}

bool operator!(const CAmountMap& a)
{
    for (const auto& it : a) {
        if (it.second) return false;
    }
    return true;
}

bool hasNegativeValue(const CAmountMap& amount)
{
    for(std::map<CAsset, CAmount>::const_iterator it = amount.begin(); it != amount.end(); ++it) {
        if (it->second < 0)
            return true;
    }
    return false;
}

bool hasNonPostiveValue(const CAmountMap& amount)
{
    for(std::map<CAsset, CAmount>::const_iterator it = amount.begin(); it != amount.end(); ++it) {
        if (it->second <= 0)
            return true;
    }
    return false;
}

CAmount valueFor(const CAmountMap& mapValue, const CAsset& asset) {
    CAmountMap::const_iterator it = mapValue.find(asset);
    if (it != mapValue.end()) {
        return it->second;
    } else {
        return CAmount(0);
    }
}

std::ostream& operator<<(std::ostream& out, const CAmountMap& map)
{
    for(std::map<CAsset, CAmount>::const_iterator it = map.begin(); it != map.end(); ++it) {
        out << it->first.GetHex() << ": " << it->second << ", ";
    }
    return out;
}