btclock_v2/src/lib/utils.cpp

54 lines
No EOL
1.7 KiB
C++

#include "utils.hpp";
double getSupplyAtBlock(uint blockNr) {
if (blockNr >= 33 * 210000) {
return 20999999.9769;
}
const int initialBlockReward = 50; // Initial block reward
const int halvingInterval = 210000; // Number of blocks before halving
int halvingCount = blockNr / halvingInterval;
double totalBitcoinInCirculation = 0;
for (int i = 0; i < halvingCount; ++i) {
totalBitcoinInCirculation += halvingInterval * initialBlockReward * std::pow(0.5, i);
}
totalBitcoinInCirculation += (blockNr % halvingInterval) * initialBlockReward * std::pow(0.5, halvingCount);
return totalBitcoinInCirculation;
}
std::string formatNumberWithSuffix(int64_t num) {
const long long quadrillion = 1000000000000000LL;
const long long trillion = 1000000000000LL;
const long long billion = 1000000000;
const long long million = 1000000;
const long long thousand = 1000;
if (num >= quadrillion) {
return std::to_string(num / quadrillion) + "Q";
} else if (num >= trillion) {
return std::to_string(num / trillion) + "T";
} else if (num >= billion) {
return std::to_string(num / billion) + "B";
} else if (num >= million) {
return std::to_string(num / million) + "M";
} else if (num >= thousand) {
return std::to_string(num / thousand) + "K";
} else {
return std::to_string(num);
}
}
String getMyHostname() {
uint8_t mac[6];
//WiFi.macAddress(mac);
esp_efuse_mac_get_default(mac);
char hostname[15];
String hostnamePrefix = preferences.getString("hostnamePrefix", "btclock");
snprintf(hostname, sizeof(hostname), "%s-%02x%02x%02x",
hostnamePrefix, mac[3], mac[4], mac[5]);
return hostname;
}