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package main
import (
"encoding/json"
"log"
"os"
"os/signal"
"strings"
"time"
"github.com/gorilla/websocket"
"github.com/nats-io/nats.go"
)
type BlueskyPost struct {
Op string `json:"op"`
Repo string `json:"repo"`
Record struct {
Text string `json:"text"`
CreatedAt time.Time `json:"createdAt"`
} `json:"record"`
}
func createNATSSubject(userID, postType string, timestamp time.Time) string {
parts := []string{"bsky", "feed", "post"}
if userID != "" {
parts = append(parts, "user", userID)
}
if postType != "" {
parts = append(parts, "type", postType)
}
parts = append(parts, "time", timestamp.Format("20060102"))
return strings.Join(parts, ".")
}
func main() {
// Connect to NATS
nc, err := nats.Connect(nats.DefaultURL)
if err != nil {
log.Fatal("Error connecting to NATS:", err)
}
defer nc.Close()
// Connect to WebSocket
c, _, err := websocket.DefaultDialer.Dial("wss://jetstream2.us-east.bsky.network/subscribe", nil)
if err != nil {
log.Fatal("Error connecting to WebSocket:", err)
}
defer c.Close()
// Handle WebSocket messages
go func() {
for {
_, message, err := c.ReadMessage()
if err != nil {
log.Println("Error reading WebSocket message:", err)
return
}
var post BlueskyPost
if err := json.Unmarshal(message, &post); err != nil {
log.Println("Error unmarshaling JSON:", err)
continue
}
// Extract user ID from repo field
userID := strings.Split(post.Repo, ".")[0]
// Determine post type (simplified for this example)
postType := "text"
if strings.Contains(post.Record.Text, "http") {
postType = "link"
}
// Create a more detailed NATS subject
subject := createNATSSubject(userID, postType, post.Record.CreatedAt)
// Publish the JSON message to NATS with the detailed subject
if err := nc.Publish(subject, message); err != nil {
log.Println("Error publishing to NATS:", err)
} else {
log.Printf("Published message to subject: %s", subject)
}
}
}()
// Wait for interrupt signal to gracefully shut down
interrupt := make(chan os.Signal, 1)
signal.Notify(interrupt, os.Interrupt)
<-interrupt
log.Println("Shutting down...")
}
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