new file: date/awareh.go

new file:   date/awareh_test.go
	new file:   date/cmd/main.go
	new file:   date/example_test.go

date/awareh.go

@@ -0,0 +1,129 @@
+// Package date implements functions for converting Gregorian calendar to Geez calander.
+package date
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+	"time"
+
+	"gday.express/ted/geez/gn"
+)
+
+type Gdate struct {
+	d, m, y int
+}
+
+// Geezday return a geez date (eg "2024-01-09" to "፴ ታኅሣሥ ፳፻፲፮") taking Gregorian calander date of format yyyy-mm-dd
+func Geezday(date string) Gdate {
+	s := Convert(date)
+	lst := strings.Split(s, "-")
+	g := Gdate{}
+	g.d, _ = strconv.Atoi(lst[0])
+	g.m, _ = strconv.Atoi(lst[1])
+	g.y, _ = strconv.Atoi(lst[2])
+	return g
+}
+
+// Today return a todays date according to Geez calander
+func Today() Gdate {
+	t := time.Now()
+	ls := strings.Split(t.String(), " ")
+	td := ls[0]
+	s := Convert(td)
+	lst := strings.Split(s, "-")
+	g := Gdate{}
+	g.d, _ = strconv.Atoi(lst[0])
+	g.m, _ = strconv.Atoi(lst[1])
+	g.y, _ = strconv.Atoi(lst[2])
+
+	return g
+}
+
+func (g Gdate) String() string {
+	month := []string{"መስከረም", "ጥቅምት", "ኅዳር", "ታኅሣሥ", "ጥር", "የካቲት", "መጋቢት", "ሚያዝያ", "ግንቦት", "ሰኔ", "ሐምሌ", "ነሐሴ", "ጳጉሜ"}
+	d := gn.Fmtint(g.d)
+	m := month[g.m-1]
+	y := gn.Fmtint(g.y)
+	str := fmt.Sprintf("%s %s %s", d, m, y)
+	return str
+}
+
+// Convert return a Geez calander date ,take string Gregorian calendar date  ("1991-05-24" to 16-9-1983)
+func Convert(date string) string {
+	d, _ := time.Parse("2006-01-02", date)
+	var z time.Time
+	spt := z.AddDate(d.Year()-1, 10, 8) //spt 11 1st day or pagume of geez calander
+	f29 := spt.AddDate(0, 0, 112)       // return feb 29(leap) or march 1(not leap)
+	//dates jan 1 and after
+	x := d.AddDate(0, 0, 111)
+	if f29.Month() != 2 {
+		mm, dd, yy := convert(x)
+		str := fmt.Sprintf("%v-%v-%v", dd, mm, yy)
+		return str
+	}
+	//dates b/n ጳጐሜ 6 and jan 1
+	if x.YearDay() != 365 && d.Year() != x.Year() {
+		mm, dd, yy := convert(x)
+		str := fmt.Sprintf("%v-%v-%v", dd, mm, yy)
+		return str
+	}
+	//dates befor ጳጐሜ 6
+	if x.YearDay() != 365 {
+		x = d.AddDate(0, 0, 112)
+		mm, dd, yy := convert(x)
+		str := fmt.Sprintf("%v-%v-%v", dd, mm, yy)
+		return str
+	}
+	// Leap day.  ጳጐሜ 6
+	x = d.AddDate(0, 0, 110)
+	_, _, yy := convert(x)
+	mm := 13
+	dd := 6
+	str := fmt.Sprintf("%v-%v-%v", dd, mm, yy)
+	return str
+
+}
+
+// daysBefore[m] counts the number of days in a non-leap year
+// before month m begins. There is an entry for m=13, counting
+// the number of days before Meskerem of next year (365).
+var daysBefore = [...]int32{
+	0,
+	30,
+	30 + 30,
+	30 + 30 + 30,
+	30 + 30 + 30 + 30,
+	30 + 30 + 30 + 30 + 30,
+	30 + 30 + 30 + 30 + 30 + 30,
+	30 + 30 + 30 + 30 + 30 + 30 + 30,
+	30 + 30 + 30 + 30 + 30 + 30 + 30 + 30,
+	30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30,
+	30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30,
+	30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30,
+	30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30,
+	30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 5,
+}
+
+func convert(x time.Time) (int, int, int) {
+	yr := x.Year()
+	day := x.YearDay() - 1
+	month := int(day / 30)
+	end := int(daysBefore[month+1])
+	var begin int
+	if day >= end {
+		month++
+		begin = end
+	} else {
+		begin = int(daysBefore[month])
+	}
+	month++
+	day = day - begin + 1
+	if month > 13 {
+		month = month - 13
+		yr = yr - 7 //geez year
+		return month, day, yr
+	}
+	yr = yr - 8 //geez year
+	return month, day, yr
+}

date/awareh_test.go

@@ -0,0 +1,35 @@
+package date
+
+import (
+	"testing"
+)
+
+var tests = []struct {
+	in   string
+	want string
+}{
+	{"2024-01-09", "2016-04-30 00:00:00 +0000 UTC"},
+	{"1991-05-24", "1983-9-16 00:00:00 +0000 UTC"},
+	{"2023-09-10", "2015-13-05 00:00:00 +0000 UTC"},
+	{"2023-09-11", "pag 2015-13-06"},
+	{"2023-09-12", "2016-01-01 00:00:00 +0000 UTC"},
+	{"2023-09-19", "2016-01-08 00:00:00 +0000 UTC"},
+	{"2023-12-01", "2016-03-21 00:00:00 +0000 UTC"},
+	{"2023-12-31", "2016-04-21 00:00:00 +0000 UTC"},
+	{"2024-01-01", "2016-04-22 00:00:00 +0000 UTC"},
+	{"2024-02-29", "2016-06-21 00:00:00 +0000 UTC"},
+	{"2024-03-01", "2016-06-22 00:00:00 +0000 UTC"},
+	{"2024-04-01", "2016-07-23 00:00:00 +0000 UTC"},
+	{"2024-09-10", "2016-13-05 00:00:00 +0000 UTC"},
+	{"2024-09-11", "2017-01-01 00:00:00 +0000 UTC"},
+}
+
+func TestConvert(t *testing.T) {
+	for _, v := range tests {
+		got := Convert(v.in)
+		if got != v.want {
+			t.Errorf("got %s want %s", got, v.want)
+		}
+	}
+
+}

date/cmd/main.go

@@ -0,0 +1,20 @@
+package main
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	"gday.express/ted/geez/date"
+)
+
+func main() {
+	var t time.Time
+	t = t.AddDate(2023, 00, 06) //Jan 7 2024
+	l := strings.Split(t.String(), " ")
+	s := date.Convert(l[0])
+	fmt.Printf("xmass %s\n", s)
+	tt := date.Today()
+	fmt.Printf("xmass %s\n", tt)
+
+}

date/example_test.go

@@ -0,0 +1,18 @@
+package date
+
+import (
+	"fmt"
+
+	"strings"
+	"time"
+)
+
+func ExampleConvert() {
+	var t time.Time
+	t = t.AddDate(2023, 00, 06) //Jan 7 2024
+	l := strings.Split(t.String(), " ")
+	s := Convert(l[0])
+	fmt.Printf("xmass %s\n", s)
+	//output: xmass 28-4-2016
+
+}