owobot/internal/util/util.go

83 lines
2.9 KiB
Go

/*
* owobot - The coolest Discord bot ever written
* Copyright (C) 2023 owobot Contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package util
import (
"fmt"
"time"
"github.com/bwmarrin/discordgo"
"go.elara.ws/logger/log"
)
// Pointer returns a pointer to v. This is useful
// for creating pointers to literal values, as Go doesn't
// allow that by default.
func Pointer[T any](v T) *T {
return &v
}
// FormatJucheTime formats the given time in Juche calendar format,
// using pyongyang time if it's available, and otherwise UTC.
func FormatJucheTime(t time.Time) string {
tz, err := time.LoadLocation("Asia/Pyongyang")
if err != nil {
tz = time.UTC
}
t = t.In(tz)
return fmt.Sprintf("%02d:%02d %02d-%02d Juche %d", t.Hour(), t.Minute(), t.Day(), t.Month(), t.Year()-1911)
}
// RespondEphemeral responds to an interaction with an ephemeral message.
func RespondEphemeral(s *discordgo.Session, i *discordgo.Interaction, content string) error {
return s.InteractionRespond(i, &discordgo.InteractionResponse{
Type: discordgo.InteractionResponseChannelMessageWithSource,
Data: &discordgo.InteractionResponseData{
Flags: discordgo.MessageFlagsEphemeral,
Content: content,
},
})
}
// Respond responds to an interaction with a message.
func Respond(s *discordgo.Session, i *discordgo.Interaction, content string) error {
return s.InteractionRespond(i, &discordgo.InteractionResponse{
Type: discordgo.InteractionResponseChannelMessageWithSource,
Data: &discordgo.InteractionResponseData{
Content: content,
},
})
}
// InteractionErrorHandler takes an InteractionCreate event handler that returns an error,
// and returns a regular handler that handles any error by responding with an ephemeral
// message and logging to stderr.
func InteractionErrorHandler(name string, fn func(s *discordgo.Session, i *discordgo.InteractionCreate) error) func(s *discordgo.Session, i *discordgo.InteractionCreate) {
return func(s *discordgo.Session, i *discordgo.InteractionCreate) {
err := fn(s, i)
if err != nil {
log.Warn("Error in interaction handler").Str("name", name).Err(err).Send()
err = RespondEphemeral(s, i.Interaction, "ERROR: "+err.Error())
if err != nil {
log.Warn("Error responding with error").Err(err).Send()
}
}
}
}