Haystack/backend/main.go

111 lines
2.3 KiB
Go

package main
import (
"fmt"
"io"
"log"
"net/http"
"os"
"screenmark/screenmark/models"
"time"
"github.com/joho/godotenv"
"github.com/lib/pq"
)
func main() {
err := godotenv.Load()
if err != nil {
panic(err)
}
err = models.InitDatabase()
if err != nil {
panic(err)
}
listener := pq.NewListener(os.Getenv("DB_CONNECTION"), time.Second, time.Second, func(event pq.ListenerEventType, err error) {
if err != nil {
panic(err)
}
})
defer listener.Close()
go func() {
err := listener.Listen("new_image")
if err != nil {
panic(err)
}
select {
case parameters := <-listener.Notify:
log.Println("received notification, new image available: " + parameters.Extra)
go func() {
openAiClient, err := CreateOpenAiClient()
if err != nil {
panic(err)
}
image, err := models.GetImage(parameters.Extra)
if err != nil {
log.Println(err)
return
}
imageInfo, err := openAiClient.GetImageInfo(image.ImageName, image.Image)
if err != nil {
log.Println(err)
return
}
log.Printf("Info: %+v\n", imageInfo)
}()
}
}()
mux := http.NewServeMux()
mux.HandleFunc("OPTIONS /image/{name}", func(w http.ResponseWriter, r *http.Request) {
w.Header().Add("Access-Control-Allow-Origin", "*")
w.Header().Add("Access-Control-Allow-Credentials", "*")
w.Header().Add("Access-Control-Allow-Headers", "*")
})
mux.HandleFunc("POST /image/{name}", func(w http.ResponseWriter, r *http.Request) {
imageName := r.PathValue("name")
userId := r.Header.Get("userId")
w.Header().Add("Access-Control-Allow-Origin", "*")
w.Header().Add("Access-Control-Allow-Credentials", "*")
w.Header().Add("Access-Control-Allow-Headers", "*")
if len(imageName) == 0 {
w.WriteHeader(http.StatusBadRequest)
fmt.Fprintf(w, "You need to provide a name in the path")
return
}
image, err := io.ReadAll(r.Body)
if err != nil {
w.WriteHeader(http.StatusBadRequest)
fmt.Fprintf(w, "Couldnt read the image from the request body")
return
}
err = models.SaveImage(userId, imageName, image)
if err != nil {
log.Println(err)
w.WriteHeader(http.StatusBadRequest)
fmt.Fprintf(w, "Could not save image to DB")
return
}
})
log.Println("Listening and serving on port 3040.")
http.ListenAndServe(":3040", mux)
}