start work on notifications

internal/typeutils/asinterfaces.go

@@ -102,6 +102,15 @@ type Followable interface {
 	withObject
 }
 
+// Likeable represents the minimum interface for an activitystreams 'like' activity.
+type Likeable interface {
+	withJSONLDId
+	withTypeName
+
+	withActor
+	withObject
+}
+
 type withJSONLDId interface {
 	GetJSONLDId() vocab.JSONLDIdProperty
 }

internal/typeutils/astointernal.go

@@ -380,6 +380,48 @@ func (c *converter) ASFollowToFollow(followable Followable) (*gtsmodel.Follow, e
 	return follow, nil
 }
 
+func (c *converter) ASLikeToFave(likeable Likeable) (*gtsmodel.StatusFave, error) {
+	idProp := likeable.GetJSONLDId()
+	if idProp == nil || !idProp.IsIRI() {
+		return nil, errors.New("no id property set on like, or was not an iri")
+	}
+	uri := idProp.GetIRI().String()
+
+	origin, err := extractActor(likeable)
+	if err != nil {
+		return nil, errors.New("error extracting actor property from like")
+	}
+	originAccount := &gtsmodel.Account{}
+	if err := c.db.GetWhere([]db.Where{{Key: "uri", Value: origin.String()}}, originAccount); err != nil {
+		return nil, fmt.Errorf("error extracting account with uri %s from the database: %s", origin.String(), err)
+	}
+
+	target, err := extractObject(likeable)
+	if err != nil {
+		return nil, errors.New("error extracting object property from like")
+	}
+
+	targetStatus := &gtsmodel.Status{}
+	if err := c.db.GetWhere([]db.Where{{Key: "uri", Value: target.String()}}, targetStatus); err != nil {
+		return nil, fmt.Errorf("error extracting status with uri %s from the database: %s", target.String(), err)
+	}
+
+	targetAccount := &gtsmodel.Account{}
+	if err := c.db.GetByID(targetStatus.AccountID, targetAccount); err != nil {
+		return nil, fmt.Errorf("error extracting account with id %s from the database: %s", targetStatus.AccountID, err)
+	}
+
+	return &gtsmodel.StatusFave{
+		TargetAccountID:  targetAccount.ID,
+		StatusID:         targetStatus.ID,
+		AccountID:        originAccount.ID,
+		URI:              uri,
+		GTSStatus:        targetStatus,
+		GTSTargetAccount: targetAccount,
+		GTSFavingAccount: originAccount,
+	}, nil
+}
+
 func isPublic(tos []*url.URL) bool {
 	for _, entry := range tos {
 		if strings.EqualFold(entry.String(), "https://www.w3.org/ns/activitystreams#Public") {

internal/typeutils/converter.go

@@ -84,6 +84,8 @@ type TypeConverter interface {
 	// RelationshipToMasto converts a gts relationship into its mastodon equivalent for serving in various places
 	RelationshipToMasto(r *gtsmodel.Relationship) (*model.Relationship, error)
 
+	NotificationToMasto(n *gtsmodel.Notification) (*model.Notification, error)
+
 	/*
 		FRONTEND (mastodon) MODEL TO INTERNAL (gts) MODEL
 	*/
@@ -107,6 +109,8 @@ type TypeConverter interface {
 	ASFollowToFollowRequest(followable Followable) (*gtsmodel.FollowRequest, error)
 	// ASFollowToFollowRequest converts a remote activitystreams `follow` representation into gts model follow.
 	ASFollowToFollow(followable Followable) (*gtsmodel.Follow, error)
+	// ASLikeToFave converts a remote activitystreams 'like' representation into a gts model status fave.
+	ASLikeToFave(likeable Likeable) (*gtsmodel.StatusFave, error)
 
 	/*
 		INTERNAL (gts) MODEL TO ACTIVITYSTREAMS MODEL

internal/typeutils/internaltofrontend.go

@@ -138,6 +138,9 @@ func (c *converter) AccountToMastoPublic(a *gtsmodel.Account) (*model.Account, e
 		fields = append(fields, mField)
 	}
 
+	emojis := []model.Emoji{}
+	// TODO: account emojis
+
 	var acct string
 	if a.Domain != "" {
 		// this is a remote user
@@ -165,7 +168,7 @@ func (c *converter) AccountToMastoPublic(a *gtsmodel.Account) (*model.Account, e
 		FollowingCount: followingCount,
 		StatusesCount:  statusesCount,
 		LastStatusAt:   lastStatusAt,
-		Emojis:         nil, // TODO: implement this
+		Emojis:         emojis, // TODO: implement this
 		Fields:         fields,
 	}, nil
 }
@@ -594,3 +597,60 @@ func (c *converter) RelationshipToMasto(r *gtsmodel.Relationship) (*model.Relati
 		Note:                r.Note,
 	}, nil
 }
+
+func (c *converter) NotificationToMasto(n *gtsmodel.Notification) (*model.Notification, error) {
+
+	if n.GTSTargetAccount == nil {
+		tAccount := &gtsmodel.Account{}
+		if err := c.db.GetByID(n.TargetAccountID, tAccount); err != nil {
+			return nil, fmt.Errorf("NotificationToMasto: error getting target account with id %s from the db: %s", n.TargetAccountID, err)
+		}
+		n.GTSTargetAccount = tAccount
+	}
+
+	if n.GTSOriginAccount == nil {
+		ogAccount := &gtsmodel.Account{}
+		if err := c.db.GetByID(n.OriginAccountID, ogAccount); err != nil {
+			return nil, fmt.Errorf("NotificationToMasto: error getting origin account with id %s from the db: %s", n.OriginAccountID, err)
+		}
+		n.GTSOriginAccount = ogAccount
+	}
+	mastoAccount, err := c.AccountToMastoPublic(n.GTSOriginAccount)
+	if err != nil {
+		return nil, fmt.Errorf("NotificationToMasto: error converting account to masto: %s", err)
+	}
+
+	var mastoStatus *model.Status
+	if n.StatusID != "" {
+		if n.GTSStatus == nil {
+			status := &gtsmodel.Status{}
+			if err := c.db.GetByID(n.StatusID, status); err != nil {
+				return nil, fmt.Errorf("NotificationToMasto: error getting status with id %s from the db: %s", n.StatusID, err)
+			}
+			n.GTSStatus = status
+		}
+
+		var replyToAccount *gtsmodel.Account
+		if n.GTSStatus.InReplyToAccountID != "" {
+			r := &gtsmodel.Account{}
+			if err := c.db.GetByID(n.GTSStatus.InReplyToAccountID, r); err != nil {
+				return nil, fmt.Errorf("NotificationToMasto: error getting replied to account with id %s from the db: %s", n.GTSStatus.InReplyToAccountID, err)
+			}
+			replyToAccount = r
+		}
+
+		var err error
+		mastoStatus, err = c.StatusToMasto(n.GTSStatus, n.GTSTargetAccount, n.GTSTargetAccount, nil, replyToAccount, nil)
+		if err != nil {
+			return nil, fmt.Errorf("NotificationToMasto: error converting status to masto: %s", err)
+		}
+	}
+
+	return &model.Notification{
+		ID:        n.ID,
+		Type:      string(n.NotificationType),
+		CreatedAt: n.CreatedAt.Format(time.RFC3339),
+		Account:   mastoAccount,
+		Status:    mastoStatus,
+	}, nil
+}