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#include <helpers/AdvertDataHelpers.h>
uint8_t AdvertDataBuilder::encodeTo(uint8_t app_data[]) {
app_data[0] = _type;
int i = 1;
if (_has_loc) {
app_data[0] |= ADV_LATLON_MASK;
memcpy(&app_data[i], &_lat, 4); i += 4;
memcpy(&app_data[i], &_lon, 4); i += 4;
}
if (_extra1) {
app_data[0] |= ADV_FEAT1_MASK;
memcpy(&app_data[i], &_extra1, 2); i += 2;
}
if (_extra2) {
app_data[0] |= ADV_FEAT2_MASK;
memcpy(&app_data[i], &_extra2, 2); i += 2;
}
if (_name && *_name != 0) {
app_data[0] |= ADV_NAME_MASK;
const char* sp = _name;
while (*sp && i < MAX_ADVERT_DATA_SIZE) {
app_data[i++] = *sp++;
}
}
return i;
}
AdvertDataParser::AdvertDataParser(const uint8_t app_data[], uint8_t app_data_len) {
_name[0] = 0;
_lat = _lon = 0;
_flags = app_data[0];
_valid = false;
_extra1 = _extra2 = 0;
int i = 1;
if (_flags & ADV_LATLON_MASK) {
memcpy(&_lat, &app_data[i], 4); i += 4;
memcpy(&_lon, &app_data[i], 4); i += 4;
}
if (_flags & ADV_FEAT1_MASK) {
memcpy(&_extra1, &app_data[i], 2); i += 2;
}
if (_flags & ADV_FEAT2_MASK) {
memcpy(&_extra2, &app_data[i], 2); i += 2;
}
if (app_data_len >= i) {
int nlen = 0;
if (_flags & ADV_NAME_MASK) {
nlen = app_data_len - i; // remainder of app_data
}
if (nlen > 0) {
memcpy(_name, &app_data[i], nlen);
_name[nlen] = 0; // set null terminator
}
_valid = true;
}
}
#include <Arduino.h>
void AdvertTimeHelper::formatRelativeTimeDiff(char dest[], int32_t seconds_from_now, bool short_fmt) {
const char *suffix;
if (seconds_from_now < 0) {
suffix = short_fmt ? "" : " ago";
seconds_from_now = -seconds_from_now;
} else {
suffix = short_fmt ? "" : " from now";
}
if (seconds_from_now < 60) {
sprintf(dest, "%d secs %s", seconds_from_now, suffix);
} else {
int32_t mins = seconds_from_now / 60;
if (mins < 60) {
sprintf(dest, "%d mins %s", mins, suffix);
} else {
int32_t hours = mins / 60;
if (hours < 24) {
sprintf(dest, "%d hours %s", hours, suffix);
} else {
sprintf(dest, "%d days %s", hours / 24, suffix);
}
}
}
}
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