/
status_embed.go
141 lines (121 loc) · 3.42 KB
/
status_embed.go
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package online
import (
"bytes"
"context"
"fmt"
"log"
"mime"
"strings"
mcpinger "github.com/Raqbit/mc-pinger"
"github.com/bwmarrin/discordgo"
"github.com/tonkat-su/bot/emoji"
"github.com/tonkat-su/bot/mclookup"
"github.com/vincent-petithory/dataurl"
)
type PrepareStatusRequest struct {
Session *discordgo.Session
GuildId string
ServerHostname string
ServerName string
}
type PrepareStatusResponse struct {
MessageEmbeds []*discordgo.MessageEmbed
Files []*discordgo.File
}
func PrepareStatus(params *PrepareStatusRequest) (*PrepareStatusResponse, error) {
ctx := context.Background()
hostports, err := mclookup.ResolveMinecraftHostPort(ctx, nil, params.ServerHostname)
if err != nil {
return nil, fmt.Errorf("error resolving server host '%s': %s", params.ServerHostname, err.Error())
}
if len(hostports) == 0 {
return nil, nil
}
embed := &discordgo.MessageEmbed{
Title: params.ServerName,
}
serverUrl := hostports[0].String()
pong, err := mcpinger.New(hostports[0].Host, hostports[0].Port).Ping()
if err != nil {
log.Printf("error pinging server '%s': %s", serverUrl, err.Error())
embed.Fields = []*discordgo.MessageEmbedField{
{
Name: "error",
Value: err.Error(),
},
}
embed.Color = 0xf04747
return &PrepareStatusResponse{
MessageEmbeds: []*discordgo.MessageEmbed{embed},
}, nil
}
embed.Fields = []*discordgo.MessageEmbedField{
{
Name: "host",
Value: serverUrl,
},
}
players := make([]*emoji.Player, len(pong.Players.Sample))
for i, p := range pong.Players.Sample {
players[i] = &emoji.Player{
Name: p.Name,
}
}
var playersEmbedField *discordgo.MessageEmbedField
if len(players) == 0 {
playersEmbedField = &discordgo.MessageEmbedField{
Name: "nobody's online :(",
Value: "https://www.youtube.com/watch?v=ypVpv-fEevk",
}
} else {
// fill emoji ids for players
err = emoji.HydrateEmojiIds(params.Session, params.GuildId, players)
if err != nil {
log.Printf("error syncing avatars to emoji: %s", err)
}
// format into list of face emojis of online players
emojis := make([]string, len(players))
for i, p := range players {
emojis[i] = p.EmojiTextCode()
}
emojiString := strings.Join(emojis, " ")
playersEmbedField = &discordgo.MessageEmbedField{
Name: fmt.Sprintf("online (%d/%d)", pong.Players.Online, pong.Players.Max),
Value: emojiString,
}
}
embed.Fields = append(embed.Fields, playersEmbedField)
embed.Color = 0x43b581
embed.Description = pong.Description.Text
files := []*discordgo.File{}
if pong.Favicon != "" {
favIcon, err := dataurl.DecodeString(pong.Favicon)
if err != nil {
return nil, fmt.Errorf("error decoding favicon for server '%s': %s", serverUrl, err.Error())
}
file := &discordgo.File{
Name: getAttachmentName("favicon", favIcon.ContentType()),
ContentType: favIcon.ContentType(),
Reader: bytes.NewReader(favIcon.Data),
}
files = append(files, file)
embed.Image = &discordgo.MessageEmbedImage{
URL: "attachment://" + file.Name,
}
}
return &PrepareStatusResponse{
MessageEmbeds: []*discordgo.MessageEmbed{embed},
Files: files,
}, nil
}
// eat any errors and assume it is .png
func getAttachmentName(filename, contentType string) string {
var extension string
extensions, err := mime.ExtensionsByType(contentType)
if err != nil || len(extensions) == 0 {
extension = ".png"
} else {
extension = extensions[0]
}
return filename + extension
}