Refactor bot command invocation

bots/discord/commands/RandomQuote.go

@@ -0,0 +1,23 @@
+package commands
+
+import (
+	"math/rand"
+
+	"github.com/animenotifier/arn"
+	"github.com/bwmarrin/discordgo"
+)
+
+// RandomQuote shows a random quote.
+func RandomQuote(s *discordgo.Session, msg *discordgo.MessageCreate) bool {
+	if msg.Content != "!randomquote" {
+		return false
+	}
+
+	allQuotes := arn.FilterQuotes(func(quote *arn.Quote) bool {
+		return !quote.IsDraft && quote.IsValid()
+	})
+
+	quote := allQuotes[rand.Intn(len(allQuotes))]
+	s.ChannelMessageSend(msg.ChannelID, "https://notify.moe"+quote.Link())
+	return true
+}