72 lines
1.9 KiB
Go
72 lines
1.9 KiB
Go
// Package formatter contains a helper to format the date of a birthday
|
|
// into a notification text
|
|
package formatter
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"os"
|
|
"regexp"
|
|
"strings"
|
|
"text/template"
|
|
"time"
|
|
|
|
"git.luzifer.io/luzifer/birthday-notifier/pkg/dateutil"
|
|
"github.com/emersion/go-vcard"
|
|
)
|
|
|
|
const timeDay = 24 * time.Hour
|
|
|
|
var (
|
|
defaultTemplate = regexp.MustCompile(`\s+`).ReplaceAllString(strings.TrimSpace(strings.ReplaceAll(`
|
|
{{ .contact | getName }} has their birthday {{ if .when | isToday -}} today {{- else -}} on {{ (.when | projectToNext).Format "Mon, 02 Jan" }} {{- end }}.
|
|
{{ if gt .when.Year 1 -}}They are turning {{ .when | getAge }}.{{- end }}
|
|
`, "\n", " ")), " ")
|
|
|
|
notifyTpl *template.Template
|
|
)
|
|
|
|
func init() {
|
|
rawTpl := defaultTemplate
|
|
if tpl := os.Getenv("NOTIFICATION_TEMPLATE"); tpl != "" {
|
|
rawTpl = tpl
|
|
}
|
|
|
|
var err error
|
|
notifyTpl, err = template.New("notification").Funcs(template.FuncMap{
|
|
"getAge": getAge,
|
|
"getName": getContactName,
|
|
"isToday": dateutil.IsToday,
|
|
"projectToNext": dateutil.ProjectToNextBirthday,
|
|
}).Parse(rawTpl)
|
|
if err != nil {
|
|
panic(fmt.Errorf("parsing notification template: %w", err))
|
|
}
|
|
}
|
|
|
|
// FormatNotificationText takes the notification template and renders
|
|
// the contact / birthday date into a text to submit in the notification
|
|
func FormatNotificationText(contact vcard.Card, when time.Time) (text string, err error) {
|
|
buf := new(bytes.Buffer)
|
|
|
|
if err = notifyTpl.Execute(buf, map[string]any{
|
|
"contact": contact,
|
|
"when": when,
|
|
}); err != nil {
|
|
return "", fmt.Errorf("executing template: %w", err)
|
|
}
|
|
|
|
return buf.String(), nil
|
|
}
|
|
|
|
func getAge(t time.Time) int {
|
|
return dateutil.ProjectToNextBirthday(t).Year() - t.Year()
|
|
}
|
|
|
|
func getContactName(contact vcard.Card) string {
|
|
if contact.Name() != nil && contact.Name().GivenName != "" {
|
|
return contact.Name().GivenName
|
|
}
|
|
|
|
return contact.FormattedNames()[0].Value
|
|
}
|