1 files changed, 150 insertions, 0 deletions
diff --git a/notes/app.bsky.feed.go b/notes/app.bsky.feed.go
new file mode 100644
index 0000000..21b94f9
--- /dev/null
+++ b/notes/app.bsky.feed.go
@@ -0,0 +1,150 @@
+package notes
+
+import (
+	"fmt"
+	"llostre/general"
+	"time"
+)
+
+type EmbedImage struct {
+	Alt   string `json:"alt"`
+	Image struct {
+		CID string `json:"$link"`
+	} `json:"image"`
+	AspectRatio *struct {
+		Width  int `json:"width"`
+		Height int `json:"height"`
+	} `json:"aspectRatio,omitempty"`
+}
+
+type EmbedImages struct {
+	Type   string       `json:"$type"`
+	Images []EmbedImage `json:"images,omitempty"`
+}
+
+type AppBskyFeedPostEmbed struct {
+	Type   string       `json:"$type"`
+	Images []EmbedImage `json:"images,omitempty"`
+	Media  *EmbedImages `json:"media,omitempty"`
+}
+
+type AppBskyFeedPostRecord struct {
+	URI   string `json:"uri"`
+	Value struct {
+		Text      string `json:"text"`
+		CreatedAt string `json:"createdAt"`
+		Reply     *struct {
+			Parent struct {
+				URI string `json:"uri"`
+			} `json:"parent"`
+		} `json:"reply,omitempty"`
+		Facets []struct {
+			Index struct {
+				ByteStart int `json:"byteStart"`
+				ByteEnd   int `json:"byteEnd"`
+			} `json:"index"`
+			Features []struct {
+				Type string `json:"$type"`
+				URI  string `json:"uri,omitempty"`
+				DID  string `json:"did,omitempty"`
+				Tag  string `json:"tag,omitempty"`
+			} `json:"features"`
+		} `json:"facets,omitempty"`
+		Embed *AppBskyFeedPostEmbed `json:"embed,omitempty"`
+	} `json:"value"`
+}
+
+func extractImages(embed *AppBskyFeedPostEmbed, did, pdsURL string) []Media {
+	if embed == nil {
+		return nil
+	}
+	images := embed.Images
+	if embed.Media != nil {
+		images = embed.Media.Images
+	}
+	var media []Media
+	for _, img := range images {
+		m := Media{
+			URL: fmt.Sprintf("%s/xrpc/com.atproto.sync.getBlob?did=%s&cid=%s", pdsURL, did, img.Image.CID),
+			Alt: img.Alt,
+		}
+		if img.AspectRatio != nil {
+			m.Width = img.AspectRatio.Width
+			m.Height = img.AspectRatio.Height
+		}
+		media = append(media, m)
+	}
+	return media
+}
+
+func NoteFromAppBskyFeedPostRecord(record AppBskyFeedPostRecord, author *Author) (*Note, error) {
+	if record.URI == "" {
+		return nil, fmt.Errorf("missing required field: uri")
+	}
+
+	createdAt, err := time.Parse(time.RFC3339, record.Value.CreatedAt)
+	if err != nil {
+		return nil, fmt.Errorf("failed to parse timestamp: %w", err)
+	}
+
+	var replyTo *string
+	if record.Value.Reply != nil {
+		replyTo = &record.Value.Reply.Parent.URI
+	}
+
+	var facets []Facet
+	for _, f := range record.Value.Facets {
+		for _, feature := range f.Features {
+			var value string
+			var facetType string
+
+			switch feature.Type {
+			case "app.bsky.richtext.facet#link":
+				facetType = "link"
+				value = feature.URI
+			case "app.bsky.richtext.facet#mention":
+				facetType = "mention"
+				value = feature.DID
+			case "app.bsky.richtext.facet#tag":
+				facetType = "tag"
+				value = feature.Tag
+			default:
+				continue
+			}
+
+			facets = append(facets, Facet{
+				ByteStart: f.Index.ByteStart,
+				ByteEnd:   f.Index.ByteEnd,
+				Type:      facetType,
+				Value:     value,
+			})
+		}
+	}
+
+	var handle, displayName, avatarURL string
+	if author != nil {
+		handle = author.Handle
+		displayName = author.DisplayName
+		avatarURL = author.AvatarURL
+	} else {
+		handle = "handle.invalid"
+		displayName = ""
+		avatarURL = ""
+	}
+
+	did, _, _, err := general.ParseURI(record.URI)
+
+	return &Note{
+		URI:            record.URI,
+		AuthorDID:      did,
+		AuthorHandle:   handle,
+		AuthorName:     displayName,
+		AuthorNoUnauth: author.NoUnauth,
+		AvatarURL:      avatarURL,
+		CreatedAt:      createdAt,
+		Text:           record.Value.Text,
+		ReplyTo:        replyTo,
+		Facets:         facets,
+		Media:          extractImages(record.Value.Embed, did, author.PDS),
+	}, nil
+}