Tidy + timeline embetterment (#38)

* tidy up timelines a bit + stub out some endpoints

* who's faved and who's boosted, reblog notifs

* linting

* Update progress with new endpoints

5 files changed, 151 insertions, 5 deletions

diff --git a/internal/processing/fromcommon.go b/internal/processing/fromcommon.go
index cb38d4bb4..bdb2a599b 100644
--- a/internal/processing/fromcommon.go
+++ b/internal/processing/fromcommon.go
@@ -160,5 +160,54 @@ func (p *processor) notifyFave(fave *gtsmodel.StatusFave, receivingAccount *gtsm
 }
 
 func (p *processor) notifyAnnounce(status *gtsmodel.Status) error {
+	if status.BoostOfID == "" {
+		// not a boost, nothing to do
+		return nil
+	}
+
+	boostedStatus := &gtsmodel.Status{}
+	if err := p.db.GetByID(status.BoostOfID, boostedStatus); err != nil {
+		return fmt.Errorf("notifyAnnounce: error getting status with id %s: %s", status.BoostOfID, err)
+	}
+
+	boostedAcct := &gtsmodel.Account{}
+	if err := p.db.GetByID(boostedStatus.AccountID, boostedAcct); err != nil {
+		return fmt.Errorf("notifyAnnounce: error getting account with id %s: %s", boostedStatus.AccountID, err)
+	}
+
+	if boostedAcct.Domain != "" {
+		// remote account, nothing to do
+		return nil
+	}
+
+	if boostedStatus.AccountID == status.AccountID {
+		// it's a self boost, nothing to do
+		return nil
+	}
+
+	// make sure a notif doesn't already exist for this announce
+	err := p.db.GetWhere([]db.Where{
+		{Key: "notification_type", Value: gtsmodel.NotificationReblog},
+		{Key: "target_account_id", Value: boostedAcct.ID},
+		{Key: "origin_account_id", Value: status.AccountID},
+		{Key: "status_id", Value: status.ID},
+	}, &gtsmodel.Notification{})
+	if err == nil {
+		// notification exists already so just bail
+		return nil
+	}
+
+	// now create the new reblog notification
+	notif := &gtsmodel.Notification{
+		NotificationType: gtsmodel.NotificationReblog,
+		TargetAccountID:  boostedAcct.ID,
+		OriginAccountID:  status.AccountID,
+		StatusID:         status.ID,
+	}
+
+	if err := p.db.Put(notif); err != nil {
+		return fmt.Errorf("notifyAnnounce: error putting notification in database: %s", err)
+	}
+
 	return nil
 }
diff --git a/internal/processing/notification.go b/internal/processing/notification.go
index 36cd81b91..44e3885b5 100644
--- a/internal/processing/notification.go
+++ b/internal/processing/notification.go
@@ -23,10 +23,10 @@ import (
 	"github.com/superseriousbusiness/gotosocial/internal/oauth"
 )
 
-func (p *processor) NotificationsGet(authed *oauth.Auth, limit int, maxID string) ([]*apimodel.Notification, ErrorWithCode) {
+func (p *processor) NotificationsGet(authed *oauth.Auth, limit int, maxID string, sinceID string) ([]*apimodel.Notification, ErrorWithCode) {
 	l := p.log.WithField("func", "NotificationsGet")
 
-	notifs, err := p.db.GetNotificationsForAccount(authed.Account.ID, limit, maxID)
+	notifs, err := p.db.GetNotificationsForAccount(authed.Account.ID, limit, maxID, sinceID)
 	if err != nil {
 		return nil, NewErrorInternalError(err)
 	}
diff --git a/internal/processing/processor.go b/internal/processing/processor.go
index 58b64afab..b31c37be3 100644
--- a/internal/processing/processor.go
+++ b/internal/processing/processor.go
@@ -107,7 +107,7 @@ type Processor interface {
 	MediaUpdate(authed *oauth.Auth, attachmentID string, form *apimodel.AttachmentUpdateRequest) (*apimodel.Attachment, ErrorWithCode)
 
 	// NotificationsGet
-	NotificationsGet(authed *oauth.Auth, limit int, maxID string) ([]*apimodel.Notification, ErrorWithCode)
+	NotificationsGet(authed *oauth.Auth, limit int, maxID string, sinceID string) ([]*apimodel.Notification, ErrorWithCode)
 
 	// SearchGet performs a search with the given params, resolving/dereferencing remotely as desired
 	SearchGet(authed *oauth.Auth, searchQuery *apimodel.SearchQuery) (*apimodel.SearchResult, ErrorWithCode)
@@ -120,15 +120,21 @@ type Processor interface {
 	StatusFave(authed *oauth.Auth, targetStatusID string) (*apimodel.Status, error)
 	// StatusBoost processes the boost/reblog of a given status, returning the newly-created boost if all is well.
 	StatusBoost(authed *oauth.Auth, targetStatusID string) (*apimodel.Status, ErrorWithCode)
+	// StatusBoostedBy returns a slice of accounts that have boosted the given status, filtered according to privacy settings.
+	StatusBoostedBy(authed *oauth.Auth, targetStatusID string) ([]*apimodel.Account, ErrorWithCode)
 	// StatusFavedBy returns a slice of accounts that have liked the given status, filtered according to privacy settings.
 	StatusFavedBy(authed *oauth.Auth, targetStatusID string) ([]*apimodel.Account, error)
 	// StatusGet gets the given status, taking account of privacy settings and blocks etc.
 	StatusGet(authed *oauth.Auth, targetStatusID string) (*apimodel.Status, error)
 	// StatusUnfave processes the unfaving of a given status, returning the updated status if the fave goes through.
 	StatusUnfave(authed *oauth.Auth, targetStatusID string) (*apimodel.Status, error)
+	// StatusGetContext returns the context (previous and following posts) from the given status ID
+	StatusGetContext(authed *oauth.Auth, targetStatusID string) (*apimodel.Context, ErrorWithCode)
 
 	// HomeTimelineGet returns statuses from the home timeline, with the given filters/parameters.
 	HomeTimelineGet(authed *oauth.Auth, maxID string, sinceID string, minID string, limit int, local bool) ([]apimodel.Status, ErrorWithCode)
+	// PublicTimelineGet returns statuses from the public/local timeline, with the given filters/parameters.
+	PublicTimelineGet(authed *oauth.Auth, maxID string, sinceID string, minID string, limit int, local bool) ([]apimodel.Status, ErrorWithCode)
 
 	/*
 		FEDERATION API-FACING PROCESSING FUNCTIONS
diff --git a/internal/processing/status.go b/internal/processing/status.go
index 7530f386a..897972839 100644
--- a/internal/processing/status.go
+++ b/internal/processing/status.go
@@ -309,6 +309,70 @@ func (p *processor) StatusBoost(authed *oauth.Auth, targetStatusID string) (*api
 	return mastoStatus, nil
 }
 
+func (p *processor) StatusBoostedBy(authed *oauth.Auth, targetStatusID string) ([]*apimodel.Account, ErrorWithCode) {
+	l := p.log.WithField("func", "StatusBoostedBy")
+
+	l.Tracef("going to search for target status %s", targetStatusID)
+	targetStatus := &gtsmodel.Status{}
+	if err := p.db.GetByID(targetStatusID, targetStatus); err != nil {
+		return nil, NewErrorNotFound(fmt.Errorf("StatusBoostedBy: error fetching status %s: %s", targetStatusID, err))
+	}
+
+	l.Tracef("going to search for target account %s", targetStatus.AccountID)
+	targetAccount := &gtsmodel.Account{}
+	if err := p.db.GetByID(targetStatus.AccountID, targetAccount); err != nil {
+		return nil, NewErrorNotFound(fmt.Errorf("StatusBoostedBy: error fetching target account %s: %s", targetStatus.AccountID, err))
+	}
+
+	l.Trace("going to get relevant accounts")
+	relevantAccounts, err := p.db.PullRelevantAccountsFromStatus(targetStatus)
+	if err != nil {
+		return nil, NewErrorNotFound(fmt.Errorf("StatusBoostedBy: error fetching related accounts for status %s: %s", targetStatusID, err))
+	}
+
+	l.Trace("going to see if status is visible")
+	visible, err := p.db.StatusVisible(targetStatus, targetAccount, authed.Account, relevantAccounts) // requestingAccount might well be nil here, but StatusVisible knows how to take care of that
+	if err != nil {
+		return nil, NewErrorNotFound(fmt.Errorf("StatusBoostedBy: error seeing if status %s is visible: %s", targetStatus.ID, err))
+	}
+
+	if !visible {
+		return nil, NewErrorNotFound(errors.New("StatusBoostedBy: status is not visible"))
+	}
+
+	// get ALL accounts that faved a status -- doesn't take account of blocks and mutes and stuff
+	favingAccounts, err := p.db.WhoBoostedStatus(targetStatus)
+	if err != nil {
+		return nil, NewErrorNotFound(fmt.Errorf("StatusBoostedBy: error seeing who boosted status: %s", err))
+	}
+
+	// filter the list so the user doesn't see accounts they blocked or which blocked them
+	filteredAccounts := []*gtsmodel.Account{}
+	for _, acc := range favingAccounts {
+		blocked, err := p.db.Blocked(authed.Account.ID, acc.ID)
+		if err != nil {
+			return nil, NewErrorNotFound(fmt.Errorf("StatusBoostedBy: error checking blocks: %s", err))
+		}
+		if !blocked {
+			filteredAccounts = append(filteredAccounts, acc)
+		}
+	}
+
+	// TODO: filter other things here? suspended? muted? silenced?
+
+	// now we can return the masto representation of those accounts
+	mastoAccounts := []*apimodel.Account{}
+	for _, acc := range filteredAccounts {
+		mastoAccount, err := p.tc.AccountToMastoPublic(acc)
+		if err != nil {
+			return nil, NewErrorNotFound(fmt.Errorf("StatusFavedBy: error converting account to api model: %s", err))
+		}
+		mastoAccounts = append(mastoAccounts, mastoAccount)
+	}
+
+	return mastoAccounts, nil
+}
+
 func (p *processor) StatusFavedBy(authed *oauth.Auth, targetStatusID string) ([]*apimodel.Account, error) {
 	l := p.log.WithField("func", "StatusFavedBy")
 
@@ -479,3 +543,7 @@ func (p *processor) StatusUnfave(authed *oauth.Auth, targetStatusID string) (*ap
 
 	return mastoStatus, nil
 }
+
+func (p *processor) StatusGetContext(authed *oauth.Auth, targetStatusID string) (*apimodel.Context, ErrorWithCode) {
+	return &apimodel.Context{}, nil
+}
diff --git a/internal/processing/timeline.go b/internal/processing/timeline.go
index b7c8e5dc7..7de2d63a9 100644
--- a/internal/processing/timeline.go
+++ b/internal/processing/timeline.go
@@ -28,13 +28,36 @@ import (
 )
 
 func (p *processor) HomeTimelineGet(authed *oauth.Auth, maxID string, sinceID string, minID string, limit int, local bool) ([]apimodel.Status, ErrorWithCode) {
-	l := p.log.WithField("func", "HomeTimelineGet")
-
 	statuses, err := p.db.GetHomeTimelineForAccount(authed.Account.ID, maxID, sinceID, minID, limit, local)
 	if err != nil {
 		return nil, NewErrorInternalError(err)
 	}
 
+	s, err := p.filterStatuses(authed, statuses)
+	if err != nil {
+		return nil, NewErrorInternalError(err)
+	}
+
+	return s, nil
+}
+
+func (p *processor) PublicTimelineGet(authed *oauth.Auth, maxID string, sinceID string, minID string, limit int, local bool) ([]apimodel.Status, ErrorWithCode) {
+	statuses, err := p.db.GetPublicTimelineForAccount(authed.Account.ID, maxID, sinceID, minID, limit, local)
+	if err != nil {
+		return nil, NewErrorInternalError(err)
+	}
+
+	s, err := p.filterStatuses(authed, statuses)
+	if err != nil {
+		return nil, NewErrorInternalError(err)
+	}
+
+	return s, nil
+}
+
+func (p *processor) filterStatuses(authed *oauth.Auth, statuses []*gtsmodel.Status) ([]apimodel.Status, error) {
+	l := p.log.WithField("func", "filterStatuses")
+
 	apiStatuses := []apimodel.Status{}
 	for _, s := range statuses {
 		targetAccount := &gtsmodel.Account{}