[feature] Process Reject of interaction via fedi API, put rejected statuses in the "sin bin" 😈 (#3271)

* [feature] Process `Reject` of interaction via fedi API, put rejected statuses in the "sin bin"

* update test

* move nil check back to `rejectStatusIRI`

internal/cache/cache.go

@@ -93,6 +93,7 @@ func (c *Caches) Init() {
 	c.initPollVote()
 	c.initPollVoteIDs()
 	c.initReport()
+	c.initSinBinStatus()
 	c.initStatus()
 	c.initStatusBookmark()
 	c.initStatusBookmarkIDs()
@@ -170,6 +171,7 @@ func (c *Caches) Sweep(threshold float64) {
 	c.DB.PollVote.Trim(threshold)
 	c.DB.PollVoteIDs.Trim(threshold)
 	c.DB.Report.Trim(threshold)
+	c.DB.SinBinStatus.Trim(threshold)
 	c.DB.Status.Trim(threshold)
 	c.DB.StatusBookmark.Trim(threshold)
 	c.DB.StatusBookmarkIDs.Trim(threshold)

internal/cache/db.go

@@ -145,6 +145,9 @@ type DBCaches struct {
 	// Report provides access to the gtsmodel Report database cache.
 	Report StructCache[*gtsmodel.Report]
 
+	// SinBinStatus provides access to the gtsmodel SinBinStatus database cache.
+	SinBinStatus StructCache[*gtsmodel.SinBinStatus]
+
 	// Status provides access to the gtsmodel Status database cache.
 	Status StructCache[*gtsmodel.Status]
 
@@ -1170,6 +1173,32 @@ func (c *Caches) initReport() {
 	})
 }
 
+func (c *Caches) initSinBinStatus() {
+	// Calculate maximum cache size.
+	cap := calculateResultCacheMax(
+		sizeofSinBinStatus(), // model in-mem size.
+		config.GetCacheSinBinStatusMemRatio(),
+	)
+
+	log.Infof(nil, "cache size = %d", cap)
+
+	copyF := func(s1 *gtsmodel.SinBinStatus) *gtsmodel.SinBinStatus {
+		s2 := new(gtsmodel.SinBinStatus)
+		*s2 = *s1
+		return s2
+	}
+
+	c.DB.SinBinStatus.Init(structr.CacheConfig[*gtsmodel.SinBinStatus]{
+		Indices: []structr.IndexConfig{
+			{Fields: "ID"},
+			{Fields: "URI"},
+		},
+		MaxSize:   cap,
+		IgnoreErr: ignoreErrors,
+		Copy:      copyF,
+	})
+}
+
 func (c *Caches) initStatus() {
 	// Calculate maximum cache size.
 	cap := calculateResultCacheMax(

internal/cache/size.go

@@ -593,6 +593,29 @@ func sizeofReport() uintptr {
 	}))
 }
 
+func sizeofSinBinStatus() uintptr {
+	return uintptr(size.Of(&gtsmodel.SinBinStatus{
+		ID:                  exampleID,
+		CreatedAt:           exampleTime,
+		UpdatedAt:           exampleTime,
+		URI:                 exampleURI,
+		URL:                 exampleURI,
+		Domain:              exampleURI,
+		AccountURI:          exampleURI,
+		InReplyToURI:        exampleURI,
+		Content:             exampleText,
+		AttachmentLinks:     []string{exampleURI, exampleURI},
+		MentionTargetURIs:   []string{exampleURI},
+		EmojiLinks:          []string{exampleURI},
+		PollOptions:         []string{exampleTextSmall, exampleTextSmall, exampleTextSmall, exampleTextSmall},
+		ContentWarning:      exampleTextSmall,
+		Visibility:          gtsmodel.VisibilityPublic,
+		Sensitive:           util.Ptr(false),
+		Language:            "en",
+		ActivityStreamsType: ap.ObjectNote,
+	}))
+}
+
 func sizeofStatus() uintptr {
 	return uintptr(size.Of(&gtsmodel.Status{
 		ID:                       exampleID,