81 lines
2.2 KiB
C++
81 lines
2.2 KiB
C++
#include <helpers/AdvertDataHelpers.h>
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uint8_t AdvertDataBuilder::encodeTo(uint8_t app_data[]) {
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app_data[0] = _type;
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int i = 1;
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if (!(_lat == 0 && _lon == 0)) {
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app_data[0] |= ADV_LATLON_MASK;
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memcpy(&app_data[i], &_lat, 4); i += 4;
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memcpy(&app_data[i], &_lon, 4); i += 4;
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}
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// TODO: BATTERY encoding
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// TODO: TEMPERATURE encoding
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if (_name && *_name != 0) {
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app_data[0] |= ADV_NAME_MASK;
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const char* sp = _name;
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while (*sp && i < MAX_ADVERT_DATA_SIZE) {
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app_data[i++] = *sp++;
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}
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}
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return i;
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}
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AdvertDataParser::AdvertDataParser(const uint8_t app_data[], uint8_t app_data_len) {
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_name[0] = 0;
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_lat = _lon = 0;
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_flags = app_data[0];
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_valid = false;
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int i = 1;
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if (_flags & ADV_LATLON_MASK) {
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memcpy(&_lat, &app_data[i], 4); i += 4;
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memcpy(&_lon, &app_data[i], 4); i += 4;
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}
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if (_flags & ADV_BATTERY_MASK) {
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/* TODO: somewhere to store battery volts? */ i += 2;
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}
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if (_flags & ADV_TEMPERATURE_MASK) {
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/* TODO: somewhere to store temperature? */ i += 2;
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}
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if (app_data_len >= i) {
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int nlen = 0;
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if (_flags & ADV_NAME_MASK) {
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nlen = app_data_len - i; // remainder of app_data
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}
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if (nlen > 0) {
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memcpy(_name, &app_data[i], nlen);
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_name[nlen] = 0; // set null terminator
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MESH_DEBUG_PRINTLN("AdvertDataParser: _flags=%u, _name=%s", (uint32_t)_flags, _name);
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}
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_valid = true;
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}
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}
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#include <Arduino.h>
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void AdvertTimeHelper::formatRelativeTimeDiff(char dest[], int32_t seconds_from_now, bool short_fmt) {
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const char *suffix;
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if (seconds_from_now < 0) {
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suffix = short_fmt ? "" : " ago";
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seconds_from_now = -seconds_from_now;
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} else {
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suffix = short_fmt ? "" : " from now";
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}
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if (seconds_from_now < 60) {
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sprintf(dest, "%d secs %s", seconds_from_now, suffix);
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} else {
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int32_t mins = seconds_from_now / 60;
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if (mins < 60) {
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sprintf(dest, "%d mins %s", mins, suffix);
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} else {
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int32_t hours = mins / 60;
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if (hours < 24) {
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sprintf(dest, "%d hours %s", hours, suffix);
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} else {
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sprintf(dest, "%d days %s", hours / 24, suffix);
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}
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}
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}
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} |