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https://github.com/DarkFlippers/unleashed-firmware
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acc39a4bc0
* Api Symbols: replace asserts with checks * Api Symbols: replace asserts with checks part 2 * Update no args function signatures with void, to help compiler to track incorrect usage * More unavoidable void * Update PVS config and code to make it happy * Format sources * nfc: fix checks * dead code cleanup & include fixes Co-authored-by: gornekich <n.gorbadey@gmail.com> Co-authored-by: hedger <hedger@users.noreply.github.com> Co-authored-by: hedger <hedger@nanode.su>
109 lines
3.2 KiB
C
109 lines
3.2 KiB
C
#include "datetime.h"
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#include <furi.h>
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#define TAG "DateTime"
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#define SECONDS_PER_MINUTE 60
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#define SECONDS_PER_HOUR (SECONDS_PER_MINUTE * 60)
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#define SECONDS_PER_DAY (SECONDS_PER_HOUR * 24)
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#define MONTHS_COUNT 12
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#define EPOCH_START_YEAR 1970
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static const uint8_t datetime_days_per_month[2][MONTHS_COUNT] = {
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{31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31},
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{31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}};
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static const uint16_t datetime_days_per_year[] = {365, 366};
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bool datetime_validate_datetime(DateTime* datetime) {
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bool invalid = false;
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invalid |= (datetime->second > 59);
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invalid |= (datetime->minute > 59);
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invalid |= (datetime->hour > 23);
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invalid |= (datetime->year < 2000);
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invalid |= (datetime->year > 2099);
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invalid |= (datetime->month == 0);
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invalid |= (datetime->month > 12);
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invalid |= (datetime->day == 0);
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invalid |= (datetime->day > 31);
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invalid |= (datetime->weekday == 0);
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invalid |= (datetime->weekday > 7);
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return !invalid;
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}
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uint32_t datetime_datetime_to_timestamp(DateTime* datetime) {
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furi_check(datetime);
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uint32_t timestamp = 0;
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uint8_t years = 0;
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uint8_t leap_years = 0;
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for(uint16_t y = EPOCH_START_YEAR; y < datetime->year; y++) {
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if(datetime_is_leap_year(y)) {
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leap_years++;
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} else {
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years++;
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}
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}
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timestamp += ((years * datetime_days_per_year[0]) + (leap_years * datetime_days_per_year[1])) *
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SECONDS_PER_DAY;
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bool leap_year = datetime_is_leap_year(datetime->year);
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for(uint8_t m = 1; m < datetime->month; m++) {
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timestamp += datetime_get_days_per_month(leap_year, m) * SECONDS_PER_DAY;
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}
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timestamp += (datetime->day - 1) * SECONDS_PER_DAY;
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timestamp += datetime->hour * SECONDS_PER_HOUR;
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timestamp += datetime->minute * SECONDS_PER_MINUTE;
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timestamp += datetime->second;
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return timestamp;
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}
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void datetime_timestamp_to_datetime(uint32_t timestamp, DateTime* datetime) {
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furi_check(datetime);
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uint32_t days = timestamp / SECONDS_PER_DAY;
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uint32_t seconds_in_day = timestamp % SECONDS_PER_DAY;
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datetime->year = EPOCH_START_YEAR;
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datetime->weekday = ((days + 3) % 7) + 1;
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while(days >= datetime_get_days_per_year(datetime->year)) {
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days -= datetime_get_days_per_year(datetime->year);
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(datetime->year)++;
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}
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datetime->month = 1;
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while(days >=
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datetime_get_days_per_month(datetime_is_leap_year(datetime->year), datetime->month)) {
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days -=
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datetime_get_days_per_month(datetime_is_leap_year(datetime->year), datetime->month);
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(datetime->month)++;
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}
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datetime->day = days + 1;
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datetime->hour = seconds_in_day / SECONDS_PER_HOUR;
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datetime->minute = (seconds_in_day % SECONDS_PER_HOUR) / SECONDS_PER_MINUTE;
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datetime->second = seconds_in_day % SECONDS_PER_MINUTE;
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}
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uint16_t datetime_get_days_per_year(uint16_t year) {
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return datetime_days_per_year[datetime_is_leap_year(year) ? 1 : 0];
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}
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bool datetime_is_leap_year(uint16_t year) {
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return (((year) % 4 == 0) && ((year) % 100 != 0)) || ((year) % 400 == 0);
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}
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uint8_t datetime_get_days_per_month(bool leap_year, uint8_t month) {
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return datetime_days_per_month[leap_year ? 1 : 0][month - 1];
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}
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