Darstellung des Lagers als Tabelle

discord.go

@@ -398,11 +398,7 @@ func (b *Bot) cmdInventoryList(s *discordgo.Session, i *discordgo.InteractionCre
 		b.replyEphemeral(s, i, "Keine Lagerbestände gefunden.")
 		return
 	}
-	var lines []string
-	for _, it := range items {
-		lines = append(lines, fmt.Sprintf("#%d — %s Q%d: %s %s%s%s", it.ID, it.Name, it.Quality, formatAmount(it.QuantityAmount), it.QuantityUnit, locationSuffix(it.Location), noteSuffix(it.Note)))
-	}
-	b.replyEphemeral(s, i, strings.Join(lines, "\n"))
+	b.replyEphemeral(s, i, "Internes Lager\n"+inventoryTable(items))
 }
 
 func (b *Bot) cmdInventoryCheck(s *discordgo.Session, i *discordgo.InteractionCreate) {
@@ -657,6 +653,69 @@ func noteSuffix(v string) string {
 	}
 	return " — " + strings.TrimSpace(v)
 }
+
+func inventoryTable(items []InventoryItem) string {
+	const maxMessageLen = 1900
+
+	var b strings.Builder
+	b.WriteString("```text\n")
+	b.WriteString(fmt.Sprintf("%-4s %-22s %-5s %-10s %-8s %-24s\n", "ID", "Ware", "Q", "Menge", "Einheit", "Ort"))
+	b.WriteString(strings.Repeat("-", 78))
+	b.WriteString("\n")
+
+	shown := 0
+	for _, it := range items {
+		name := truncateText(it.Name, 22)
+		location := truncateText(strings.TrimSpace(it.Location), 24)
+		if location == "" {
+			location = "-"
+		}
+
+		row := fmt.Sprintf(
+			"%-4d %-22s %-5d %-10s %-8s %-24s\n",
+			it.ID,
+			name,
+			it.Quality,
+			formatAmount(it.QuantityAmount),
+			it.QuantityUnit,
+			location,
+		)
+		if strings.TrimSpace(it.Note) != "" {
+			row += fmt.Sprintf("     Notiz: %s\n", truncateText(it.Note, 70))
+		}
+
+		// Discord-Nachrichten sind auf 2000 Zeichen begrenzt. Bei langen Listen
+		// brechen wir sauber ab und schließen den Codeblock trotzdem korrekt.
+		remainingHint := fmt.Sprintf("… plus %d weitere Positionen\n", len(items)-shown)
+		if b.Len()+len(row)+len(remainingHint)+len("```") > maxMessageLen {
+			if len(items)-shown > 0 {
+				b.WriteString(remainingHint)
+			}
+			break
+		}
+
+		b.WriteString(row)
+		shown++
+	}
+
+	b.WriteString("```")
+	return b.String()
+}
+
+func truncateText(v string, max int) string {
+	v = strings.TrimSpace(v)
+	if max <= 0 {
+		return ""
+	}
+	runes := []rune(v)
+	if len(runes) <= max {
+		return v
+	}
+	if max == 1 {
+		return string(runes[:1])
+	}
+	return string(runes[:max-1]) + "…"
+}
 func safeThreadName(v string) string {
 	v = strings.Map(func(r rune) rune {
 		if strings.ContainsRune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_", r) {