1 /*
2 * Copyright (c) 2021 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "base/utils/date_util.h"
17
18 #include <chrono>
19 #include <ctime>
20
21 #include "base/utils/utils.h"
22
23 namespace OHOS::Ace {
24
Current()25 Date Date::Current()
26 {
27 Date date;
28 auto now = std::chrono::system_clock::to_time_t(std::chrono::system_clock::now());
29 auto local = std::localtime(&now);
30 CHECK_NULL_RETURN_NOLOG(local, date);
31 date.year = static_cast<uint32_t>(local->tm_year) + 1900; // local date start from 1900
32 date.month = static_cast<uint32_t>(local->tm_mon) + 1; // local month start from 0 to 11, need add one.
33 date.day = static_cast<uint32_t>(local->tm_mday);
34 date.week = static_cast<uint32_t>(local->tm_wday);
35 return date;
36 }
37
IsLeapYear(int32_t year)38 bool Date::IsLeapYear(int32_t year)
39 {
40 return ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0);
41 }
42
DayOfMonth(int32_t year,int32_t month)43 int32_t Date::DayOfMonth(int32_t year, int32_t month)
44 {
45 int32_t day = 0;
46 switch (month) {
47 case 1:
48 case 3:
49 case 5:
50 case 7:
51 case 8:
52 case 10:
53 case 12:
54 day = 31;
55 break;
56 case 4:
57 case 6:
58 case 9:
59 case 11:
60 day = 30;
61 break;
62 case 2:
63 day = IsLeapYear(year) ? 29 : 28;
64 break;
65 default:
66 day = 0;
67 }
68 return day;
69 }
70
CalculateWeekDay(int32_t year,int32_t month,int32_t day)71 int32_t Date::CalculateWeekDay(int32_t year, int32_t month, int32_t day)
72 {
73 if (month == 1 || month == 2) {
74 month += 12;
75 year--;
76 }
77
78 // Day of the week calculation formula
79 return (day + 2 * month + 3 * (month + 1) / 5 + year + year / 4 - year / 100 + year / 400) % 7;
80 }
81
GetMilliSecondsByDateTime(std::tm & dateTime)82 int64_t Date::GetMilliSecondsByDateTime(std::tm& dateTime)
83 {
84 auto now = std::chrono::system_clock::to_time_t(std::chrono::system_clock::now());
85 auto local = std::localtime(&now);
86 CHECK_NULL_RETURN_NOLOG(local, 0);
87 if (dateTime.tm_year == 0) {
88 dateTime.tm_year = static_cast<uint32_t>(local->tm_year);
89 }
90 if (dateTime.tm_mday == 0) {
91 dateTime.tm_mday = static_cast<uint32_t>(local->tm_mday);
92 }
93 auto timestamp = std::chrono::system_clock::from_time_t(std::mktime(&dateTime));
94 auto duration = timestamp.time_since_epoch();
95 auto milliseconds = std::chrono::duration_cast<std::chrono::milliseconds>(duration).count();
96 return milliseconds;
97 }
98 } // namespace OHOS::Ace
99