moderation_state.gno

 1package memba_reviews_v2
 2
 3import (
 4	"crypto/sha256"
 5	"encoding/hex"
 6)
 7
 8// ModerationState is a bounded copied snapshot, including hidden/deleted items.
 9// No pointer or body is exposed. BodyHash binds edits even within the same block.
10// Reactions and cumulative flag counts are not moderation authorization inputs.
11type ModerationState struct {
12	ID        uint64
13	Review    bool
14	ParentID  uint64
15	Subject   string
16	Author    address
17	Rating    int
18	BodyHash  string
19	CreatedAt int64
20	EditedAt  int64
21	Hidden    bool
22	Deleted   bool
23	Flagged   bool
24}
25
26func moderationBodyHash(body string) string {
27	sum := sha256.Sum256([]byte(body))
28	return hex.EncodeToString(sum[:])
29}
30
31// GetModerationState returns a zero value for an absent ID. The flagged-index
32// bit is distinct from historical flags; Unhide removes only the index entry.
33func GetModerationState(id uint64) ModerationState {
34	_, flagged := flaggedIDs.Get(strID(id))
35	if r, ok := getReview(id); ok {
36		return ModerationState{ID: r.ID, Review: true, Subject: r.Subject, Author: r.Author,
37			Rating: r.Rating, BodyHash: moderationBodyHash(r.Body), CreatedAt: r.CreatedAt,
38			EditedAt: r.EditedAt, Hidden: r.Hidden, Deleted: r.Deleted, Flagged: flagged}
39	}
40	if c, ok := getComment(id); ok {
41		return ModerationState{ID: c.ID, ParentID: c.ReviewID, Author: c.Author,
42			BodyHash: moderationBodyHash(c.Body), CreatedAt: c.CreatedAt, EditedAt: c.EditedAt,
43			Hidden: c.Hidden, Deleted: c.Deleted, Flagged: flagged}
44	}
45	return ModerationState{}
46}