added full gifts support

internal/domain/gif_catalog.go

@@ -0,0 +1,50 @@
+package domain
+
+import (
+	"errors"
+	"time"
+)
+
+var (
+	// ErrGifCatalogUnavailable is returned by the admin GIF-catalog write path
+	// when no store.GifCatalogStore was configured (files.WithGifCatalog).
+	ErrGifCatalogUnavailable = errors.New("gif catalog is not configured")
+	// ErrGifCatalogFileInvalid is returned when an uploaded file isn't a GIF
+	// or MP4, or exceeds MaxGifCatalogUploadSize.
+	ErrGifCatalogFileInvalid = errors.New("gif catalog file invalid")
+	// ErrGifCatalogEntryInvalid is returned for a title that fails validation
+	// or a document_id that doesn't resolve to an uploaded document.
+	ErrGifCatalogEntryInvalid = errors.New("gif catalog entry invalid")
+	// ErrGifCatalogEntryNotFound is returned by an update/delete against an id
+	// that doesn't exist.
+	ErrGifCatalogEntryNotFound = errors.New("gif catalog entry not found")
+)
+
+const (
+	// MaxGifCatalogTitleLen bounds an admin-entered catalog entry title.
+	MaxGifCatalogTitleLen = 128
+	// MaxGifCatalogEntries caps how many entries @gif serves in one inline
+	// response -- mirrors MaxBotInlineResults, the TL-level cap the client
+	// itself enforces per messages.getInlineBotResults response.
+	MaxGifCatalogEntries = MaxBotInlineResults
+	// MaxGifCatalogUploadSize bounds one admin-uploaded catalog file.
+	// 20MB matches MaxBotInlineWebSize, the size a client-side inline GIF
+	// result is already allowed to be.
+	MaxGifCatalogUploadSize = MaxBotInlineWebSize
+)
+
+// GifCatalogEntry is one admin-curated GIF served by the built-in @gif inline
+// bot (see rpc.ServiceBotInlineResults) for the client's GIF picker
+// trending/search panel. DocumentID references an already-uploaded document
+// (see files.Service.AdminUploadGifMaterial) -- the catalog only tracks which
+// documents are featured and in what order, it does not own the media itself.
+type GifCatalogEntry struct {
+	ID         int64
+	Title      string
+	DocumentID int64
+	Enabled    bool
+	SortOrder  int
+	CreatedBy  string
+	CreatedAt  time.Time
+	UpdatedAt  time.Time
+}