starboard: Initial implementation

main.go

@@ -21,9 +21,12 @@ func main() {
 	}
 	dg.AddHandler(messageCreate)
 	dg.AddHandler(checkPrestigeReact)
+	dg.AddHandler(starboardAutoReact)
+	dg.AddHandler(listenToStarboardReact)
 	err = dg.Open()
 	if err != nil {
 		fmt.Println("Error opening Discord session:", err)
+		return
 	}
 	go listenToLevelUpdate(dg)
 

starboard.go

@@ -0,0 +1,67 @@
+package main
+
+import (
+	"time"
+
+	"github.com/bwmarrin/discordgo"
+)
+
+const starEmoji = "⭐"
+
+func starboardAutoReact(s *discordgo.Session, m *discordgo.MessageCreate) {
+	err := s.MessageReactionAdd(m.ChannelID, m.ID, starEmoji)
+	if err != nil {
+		logError(s, "starboardAutoReact", m.ChannelID, m.ID, err)
+	}
+}
+
+func listenToStarboardReact(s *discordgo.Session, m *discordgo.MessageReactionAdd) {
+	if m.Emoji.Name != starEmoji {
+		return
+	}
+	messageTimestamp, err := discordgo.SnowflakeTimestamp(m.MessageID)
+	if err != nil {
+		logError(s, "listenToStarboardReact", "snowflakeTimestamp", m.MessageID, err)
+		return
+	}
+	if time.Now().Sub(messageTimestamp) > 24*time.Hour {
+		return
+	}
+
+	reacter, err := s.MessageReactions(m.ChannelID, m.MessageID, starEmoji, 5)
+	if err != nil {
+		logError(s, "listenToStarboardReact", "messageReactions", m.ChannelID, m.MessageID, err)
+		return
+	}
+	if len(reacter) < 5 {
+		return
+	}
+
+	msg, err := s.ChannelMessage(m.ChannelID, m.MessageID)
+	if err != nil {
+		logError(s, "listenToStarboardReact", "channelMessage", m.ChannelID, m.MessageID, err)
+		return
+	}
+
+	color := s.State.UserColor(msg.Author.ID, m.ChannelID)
+	if color == 0 {
+		//White as fallback
+		color = 0xFFFFFF
+	}
+	_, err = s.ChannelMessageSendEmbed(
+		"645551408283648000",
+		&discordgo.MessageEmbed{
+			Title:     "Starred Message",
+			URL:       "https://discordapp.com/channels/" + m.GuildID + "/" + m.ChannelID + "/" + m.MessageID,
+			Color:     color,
+			Timestamp: messageTimestamp.Format(time.RFC3339),
+			Author: &discordgo.MessageEmbedAuthor{
+				Name:    msg.Author.Username + "#" + msg.Author.Discriminator,
+				IconURL: "https://cdn.discordapp.com/avatars/" + msg.Author.ID + "/" + msg.Author.Avatar + ".png",
+			},
+		},
+	)
+	if err != nil {
+		logError(s, "listenToStarboardReact", "channelMessageSendEmbed", err)
+	}
+}