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#include "stdafx.h"
/////////////////////////////////////////////////////////////////////////////////////////
// CCurrencyRatesProviderExchangeRates implementation
class CCurrencyRatesProviderCbrf : public CCurrencyRatesProviderBase
{
std::map<CMStringA, double> m_lastRates;
double GetRate(const CMStringA &id1, const CMStringA &id2) const
{
if (!id1.IsEmpty() && !id2.IsEmpty()) {
auto r1 = m_lastRates.find(id1), r2 = m_lastRates.find(id2);
if (r1 != m_lastRates.end() && r2 != m_lastRates.end())
return r2->second / r1->second;
}
return 0.0;
}
public:
CCurrencyRatesProviderCbrf()
{
m_bRequiresAuth = false;
}
void RefreshCurrencyRates(TContacts &anContacts) override
{
CHTTPSession http;
if (true == http.OpenURL(GetURL())) {
CMStringW sHTML;
if (true == http.ReadResponce(sHTML)) {
JSONNode root = JSONNode::parse(_T2A(sHTML));
if (!root)
return;
auto rates = root["rates"];
if (!rates)
return;
auto &qs = GetSection();
m_lastRates.clear();
for (auto &it : qs.GetCurrencyRates()) {
CMStringA id = it.GetID();
m_lastRates[id] = (id == "RUB") ? 1.0 : rates[id].as_float();
}
}
}
for (auto &hContact : anContacts) {
double rate = GetRate(g_plugin.getMStringA(hContact, DB_STR_FROM_ID), g_plugin.getMStringA(hContact, DB_STR_TO_ID));
if (rate != 0.0) {
WriteContactRate(hContact, rate);
continue;
}
SetContactStatus(hContact, ID_STATUS_NA);
}
}
double Convert(double dAmount, const CCurrencyRate &from, const CCurrencyRate &to) const override
{
CMStringA id1 = from.GetID(), id2 = to.GetID();
return dAmount * GetRate(id1, id2);
}
wchar_t* GetXmlFilename() const override
{
return L"cbrf.xml";
}
};
/////////////////////////////////////////////////////////////////////////////////////////
// Module entry point
void InitCbrf()
{
g_apProviders.push(new CCurrencyRatesProviderCbrf());
}
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