[feature] Allow user to choose "gallery" style layout for web view of profile (#3917)

* [feature] Allow user to choose "gallery" style web layout

* find a bug and squish it up and all day long you'll have good luck

* just a sec

* [performance] reindex public timeline + tinker with query a bit

* fiddling

* should be good now

* last bit of finagling, i'm done now i prommy

* panic normally

3 files changed, 40 insertions, 3 deletions

diff --git a/internal/processing/account/rss.go b/internal/processing/account/rss.go
index 22ba0fe42..b0debcc91 100644
--- a/internal/processing/account/rss.go
+++ b/internal/processing/account/rss.go
@@ -115,8 +115,20 @@ func (p *Processor) GetRSSFeedForUsername(ctx context.Context, username string)
 		// Reuse the lastPostAt value for feed.Updated.
 		feed.Updated = lastPostAt
 
-		// Retrieve latest statuses as they'd be shown on the web view of the account profile.
-		statuses, err := p.state.DB.GetAccountWebStatuses(ctx, account, rssFeedLength, "")
+		// Retrieve latest statuses as they'd be shown
+		// on the web view of the account profile.
+		//
+		// Take into account whether the user wants
+		// their web view laid out in gallery mode.
+		mediaOnly := account.Settings != nil &&
+			account.Settings.WebLayout == gtsmodel.WebLayoutGallery
+		statuses, err := p.state.DB.GetAccountWebStatuses(
+			ctx,
+			account,
+			mediaOnly,
+			rssFeedLength,
+			"", // Latest posts from the top.
+		)
 		if err != nil && !errors.Is(err, db.ErrNoEntries) {
 			err = fmt.Errorf("db error getting account web statuses: %w", err)
 			return "", gtserror.NewErrorInternalError(err)
diff --git a/internal/processing/account/statuses.go b/internal/processing/account/statuses.go
index 8029a460b..701fe44ae 100644
--- a/internal/processing/account/statuses.go
+++ b/internal/processing/account/statuses.go
@@ -143,6 +143,7 @@ func (p *Processor) StatusesGet(
 func (p *Processor) WebStatusesGet(
 	ctx context.Context,
 	targetAccountID string,
+	mediaOnly bool,
 	maxID string,
 ) (*apimodel.PageableResponse, gtserror.WithCode) {
 	account, err := p.state.DB.GetAccountByID(ctx, targetAccountID)
@@ -159,7 +160,13 @@ func (p *Processor) WebStatusesGet(
 		return nil, gtserror.NewErrorNotFound(err)
 	}
 
-	statuses, err := p.state.DB.GetAccountWebStatuses(ctx, account, 10, maxID)
+	statuses, err := p.state.DB.GetAccountWebStatuses(
+		ctx,
+		account,
+		mediaOnly,
+		20,
+		maxID,
+	)
 	if err != nil && !errors.Is(err, db.ErrNoEntries) {
 		return nil, gtserror.NewErrorInternalError(err)
 	}
@@ -198,6 +205,7 @@ func (p *Processor) WebStatusesGet(
 func (p *Processor) WebStatusesGetPinned(
 	ctx context.Context,
 	targetAccountID string,
+	mediaOnly bool,
 ) ([]*apimodel.WebStatus, gtserror.WithCode) {
 	statuses, err := p.state.DB.GetAccountPinnedStatuses(ctx, targetAccountID)
 	if err != nil && !errors.Is(err, db.ErrNoEntries) {
@@ -206,6 +214,11 @@ func (p *Processor) WebStatusesGetPinned(
 
 	webStatuses := make([]*apimodel.WebStatus, 0, len(statuses))
 	for _, status := range statuses {
+		if mediaOnly && len(status.Attachments) == 0 {
+			// No media, skip.
+			continue
+		}
+
 		// Ensure visible via the web.
 		visible, err := p.visFilter.StatusVisible(ctx, nil, status)
 		if err != nil {
diff --git a/internal/processing/account/update.go b/internal/processing/account/update.go
index 3a59dbdf3..a833d72c1 100644
--- a/internal/processing/account/update.go
+++ b/internal/processing/account/update.go
@@ -294,6 +294,18 @@ func (p *Processor) Update(ctx context.Context, account *gtsmodel.Account, form
 		settingsColumns = append(settingsColumns, "web_visibility")
 	}
 
+	if form.WebLayout != nil {
+		webLayout := gtsmodel.ParseWebLayout(*form.WebLayout)
+		if webLayout == gtsmodel.WebLayoutUnknown {
+			const text = "web_layout must be one of microblog or gallery"
+			err := errors.New(text)
+			return nil, gtserror.NewErrorBadRequest(err, text)
+		}
+
+		account.Settings.WebLayout = webLayout
+		settingsColumns = append(settingsColumns, "web_layout")
+	}
+
 	// We've parsed + set everything, do
 	// necessary database updates now.