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event.go
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event.go
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package main
import (
"sort"
"strings"
"time"
)
type Event struct {
Id string `json:"-"`
Owner string `json:"owner"`
Title string `json:"title" binding:"min=1,max=50"`
Start time.Time `json:"start"`
End time.Time `json:"end" binding:"gtfield=Start"`
Location EventLocation `json:"location" binding:"required"`
Capacity uint16 `json:"capacity" binding:"min=1,max=1000"`
Description string `json:"description" binding:"min=1,max=500"`
}
type EventLocation struct {
Name string `json:"name" binding:"min=1,max=50"`
Url string `json:"url" binding:"url,max=100"`
}
func (event *Event) isInPast() bool {
return event.End.Before(time.Now())
}
func sortEvents(events []*Event) []*Event {
sort.Slice(events, func(i, j int) bool {
return events[i].Start.Before(events[j].Start)
})
return events
}
func sortPastEvents(events []*Event) []*Event {
sort.Slice(events, func(i, j int) bool {
return events[i].End.After(events[j].End)
})
return events
}
func iCalendarEvent(event *Event, host string) string {
return "BEGIN:VCALENDAR\n" +
"VERSION:2.0\n" +
"PRODID:-//yanascz//NONSGML LNURL Daemon//EN\n" +
"BEGIN:VEVENT\n" +
"UID:event-" + event.Id + "@" + host + "\n" +
"DTSTAMP:" + iCalendarDateTime(time.Now()) + "\n" +
"SUMMARY:" + iCalendarText(event.Title) + "\n" +
"DTSTART:" + iCalendarDateTime(event.Start) + "\n" +
"DTEND:" + iCalendarDateTime(event.End) + "\n" +
"LOCATION:" + iCalendarText(event.Location.Name) + "\n" +
"DESCRIPTION:" + iCalendarText(event.Description) + "\n" +
"END:VEVENT\n" +
"END:VCALENDAR\n"
}
var iCalendarEscaper = strings.NewReplacer(`\`, `\\`, "\n", `\n`, `;`, `\;`, `,`, `\,`)
func iCalendarText(text string) string {
return iCalendarEscaper.Replace(text)
}
func iCalendarDateTime(dateTime time.Time) string {
return dateTime.UTC().Format("20060102T150405Z07")
}