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#include "quotes.h"
#include "datetime.h"
#include "error.h"
#include "debug.h"
#include <fstream>
#include <cstdlib>
#include <cstdio>
namespace ledger {
void quotes_by_script::operator()(commodity_t& commodity,
const std::time_t moment,
const std::time_t date,
const std::time_t last,
amount_t& price)
{
DEBUG_CLASS("ledger.quotes.download");
DEBUG_PRINT_("commodity: " << commodity.symbol);
DEBUG_PRINT_TIME_(now);
DEBUG_PRINT_TIME_(moment);
DEBUG_PRINT_TIME_(date);
DEBUG_PRINT_TIME_(last);
if (commodity.history)
DEBUG_PRINT_TIME_(commodity.history->last_lookup);
DEBUG_PRINT_("pricing_leeway is " << pricing_leeway);
if ((commodity.history &&
std::difftime(now, commodity.history->last_lookup) < pricing_leeway) ||
std::difftime(now, last) < pricing_leeway ||
(price && std::difftime(moment, date) <= pricing_leeway))
return;
using namespace std;
DEBUG_PRINT_("downloading quote for symbol " << commodity.symbol);
char buf[256];
buf[0] = '\0';
bool success = true;
if (FILE * fp = popen((string("getquote \"") +
commodity.symbol + "\"").c_str(), "r")) {
if (feof(fp) || ! fgets(buf, 255, fp))
success = false;
if (pclose(fp) != 0)
success = false;
} else {
success = false;
}
if (success && buf[0]) {
char * p = strchr(buf, '\n');
if (p) *p = '\0';
DEBUG_PRINT_("downloaded quote: " << buf);
price.parse(buf);
commodity.add_price(now, price);
commodity.history->last_lookup = now;
cache_dirty = true;
if (price && ! price_db.empty()) {
strftime(buf, 127, "%Y/%m/%d %H:%M:%S", localtime(&now));
#if defined(__GNUG__) && __GNUG__ < 3
ofstream database(price_db.c_str(), ios::out | ios::app);
#else
ofstream database(price_db.c_str(), ios_base::out | ios_base::app);
#endif
database << "P " << buf << " " << commodity.symbol
<< " " << price << endl;
}
} else {
throw error(std::string("Failed to download price for '") +
commodity.symbol + "' (command: \"getquote " +
commodity.symbol + "\")");
}
}
} // namespace ledger
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