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// ------------------------------------------------------------------------
// Project atila
// Active Thing (activething.com) git.activething.com/go
//
// File name byear.go
// Created by DEV
// Modified 21/02/2024
//
// Copyright 2024 activething.com
// ------------------------------------------------------------------------
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ------------------------------------------------------------------------
package bdates
import "dtes"
type (
BYear struct {
atts BYearAtt
first byte
year byte
months [12]BMonth
}
)
func NewBYear (year int) *BYear {
if year < minBYear || year > maxBYear {
panic(G.ErrInvalidYear)
}
at := BYearAtt(BYearAttSet)
if dates.IsYearLeap(year) {
at|=BYearAttLeap
}
return &BYear {
atts : at,
first: byte(dates.DayOfWeek(year,1,1)),
year : byte(year-1900),
}
}
func (y *BYear) Atts () BYearAtt {
return y.atts }
func (y *BYear) First () int {
return int(y.first) }
func (y *BYear) Year () int {
return minBYear + int(y.year) }
func (y *BYear) Clear (month ...int) {
if len(month) == 0 {
for i := 0; i < 12; i++ {
y.months[i] = 0
}
return
}
for _,i := range month {
if !checkMonthNumber(i){
panic(G.ErrInvalidMonth)
}
y.months[i]=0
}
}
func (y *BYear) GetDay (month, day int) bool {
if !checkMonthNumber(month) {
panic(G.ErrInvalidMonth )
}
if day < 1 || day > y.daysInMonth(month) {
panic(G.ErrInvalidDay)
}
return (uint32(1 << day) & uint32(y.months[month])) != 0
}
func (y *BYear) SetDay (month, day int, active bool) {
if !checkMonthNumber(month) {
panic(G.ErrInvalidMonth )
}
if day < 1 || day > y.daysInMonth(month) {
panic(G.ErrInvalidDay)
}
month-=1
if active {
y.months[month] = y.months[month] | BMonth(1 << day)
return
}
y.months[month] = y.months[month] &^ BMonth(1 << day)
}
func (y *BYear) GetMonth (month int) BMonth {
if !checkMonthNumber(month) {
panic(G.ErrInvalidMonth)
}
return y.months[month-1]
}
func (y BYear) daysInMonth (month int) int {
d := [12]int{ 31,28,31,30,31,30,31,30,31,30,31 }
if month == 2 && y.Atts().IsLeap() {
return 29
}
return d[month-1]
}

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