guilds.gno

 1package guildsv3
 2import (
 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 string
10	by      address
11}
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		return
27	}
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.guildID
45}
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 false
58	})
59	return out
60}
61func Render(path string) string {
62	var b strings.Builder
63	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 := 0
67	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 false
72	})
73	if n == 0 {
74		b.WriteString("_No court has chosen one yet._\n")
75	}
76	return b.String()
77}