package handler
import (
"context"
"fmt"
"io"
"log"
"net/http"
"strings"
"time"
"github.com/jmoiron/sqlx"
_ "github.com/lib/pq"
"github.com/segmentio/kafka-go"
)
type Handler struct {
db DB
kafka_writer *kafka.Writer
}
func NewHandler(db *sqlx.DB, kafka_writer *kafka.Writer) Handler {
return Handler{
db: NewDB(db),
kafka_writer: kafka_writer,
}
}
func (h Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
switch r.Method {
case http.MethodGet:
h.handleGet(w, r)
case http.MethodPost:
h.handlePost(w, r)
default:
http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
}
}
func (h Handler) handleGet(w http.ResponseWriter, r *http.Request) {
_, filePath, ok := strings.Cut(r.URL.Path, "/file/")
if !ok {
http.Error(w, "Invalid file path", http.StatusBadRequest)
return
}
log.Println("File path: ", filePath)
ctx, cancel := context.WithTimeout(r.Context(), 5*time.Second)
defer cancel()
file, err := h.db.GetLatestFileByPath(ctx, filePath)
if err != nil {
http.Error(w, fmt.Sprintf("Internal server error: %s", err), http.StatusInternalServerError)
return
}
fmt.Fprintln(w, "File: ", file)
}
func (h Handler) handlePost(w http.ResponseWriter, r *http.Request) {
bytes, err := io.ReadAll(io.Reader(r.Body))
if err != nil {
log.Fatal(err)
}
ctx, cancel := context.WithTimeout(r.Context(), 5*time.Second)
defer cancel()
err = h.kafka_writer.WriteMessages(ctx, kafka.Message{
Key: []byte("key"), //TODO:This routes to a partition. We should probably route by agent UUID TODO: wont this negate having multiple topics
Value: bytes,
})
if err != nil {
log.Fatal(err)
}
fmt.Fprint(w, "Hello, World!", string(bytes))
log.Println("Request received :)", r.RemoteAddr, string(bytes))
}
