gno.land/r/g1leu8d2vsplhehcfkjg50mwgdpxdkt8tztu95wr/guildsv3⧉

1package guildsv32import (3	"chain"4	"strings"5	bptree "gno.land/p/nt/bptree/v0"6	kourt "gno.land/r/g1leu8d2vsplhehcfkjg50mwgdpxdkt8tztu95wr/kourtv3"7)8type choice struct {9	guildID string10	by      address11}12var guildOf = bptree.NewBPTree32()13func Set(cur realm, courtSlug, guildID string) {14	if !cur.IsCurrent() {15		panic("guilds: stale realm")16	}17	who := cur.Previous().Address()18	if !kourt.IsCourtMod(courtSlug, who) {19		panic("guilds: only a moderator of this court may set its server")20	}21	id := strings.TrimSpace(guildID)22	if id == "" {23		if _, removed := guildOf.Remove(courtSlug); removed {24			chain.Emit("GuildCleared", "court", courtSlug, "by", who.String())25		}26		return27	}28	if len(id) < 17 || len(id) > 20 {29		panic("guilds: a Discord server id is 17 to 20 digits")30	}31	for i := 0; i < len(id); i++ {32		if id[i] < '0' || id[i] > '9' {33			panic("guilds: a Discord server id is digits only")34		}35	}36	guildOf.Set(courtSlug, choice{guildID: id, by: who})37	chain.Emit("GuildSet", "court", courtSlug, "guild", id, "by", who.String())38}39func GuildOf(courtSlug string) string {40	c, ok := guildOf.Get(courtSlug).(choice)41	if !ok {42		return ""43	}44	return c.guildID45}46func Chosen(courtSlug string) (guildID, by string) {47	c, ok := guildOf.Get(courtSlug).(choice)48	if !ok {49		return "", ""50	}51	return c.guildID, c.by.String()52}53func Courts() []string {54	out := []string{}55	guildOf.Iterate("", "", func(k string, _ any) bool {56		out = append(out, k)57		return false58	})59	return out60}61func Render(path string) string {62	var b strings.Builder63	b.WriteString("# Court Discord servers\n\n")64	b.WriteString("Which Discord server each court's moderators chose. ")65	b.WriteString("Set by a moderator of the court, read by kourt.xyz.\n\n")66	n := 067	guildOf.Iterate("", "", func(k string, v any) bool {68		c, _ := v.(choice)69		b.WriteString("- **" + k + "** — `" + c.guildID + "` (set by " + c.by.String() + ")\n")70		n++71		return false72	})73	if n == 0 {74		b.WriteString("_No court has chosen one yet._\n")75	}76	return b.String()77}78