Files
arbeitszeitmessung/Backend/main.go
2024-09-05 18:10:13 +02:00

83 lines
1.8 KiB
Go

package main
import (
"arbeitszeitmessung/models"
"database/sql"
"encoding/json"
"errors"
"fmt"
"log"
"net/http"
"os"
_ "github.com/lib/pq"
)
var DB *sql.DB
func main() {
var err error
DB, err = OpenDatabase()
if err != nil {
log.Fatal(err)
}
defer DB.Close()
http.HandleFunc("/time", timeHandler)
fmt.Println("Server is running at http://localhost:8080")
log.Fatal(http.ListenAndServe(":8080", nil))
}
func timeHandler(w http.ResponseWriter, r *http.Request) {
switch r.Method {
case "PUT":
createBooking(w, r)
case "GET":
getBookings(w, r)
default:
http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
}
}
func createBooking(w http.ResponseWriter, r *http.Request) {
booking := (*models.Booking).FromUrlParams(nil, r.URL.Query())
if booking.Verify() {
err := booking.Insert(DB)
if errors.Is(models.SameBookingError{}, err) {
http.Error(w, "Booking already exists", http.StatusConflict)
return
}
if err != nil {
log.Println("Error inserting booking: ", err)
http.Error(w, "Internal Server Error", http.StatusInternalServerError)
return
}
w.WriteHeader(http.StatusAccepted)
json.NewEncoder(w).Encode(booking)
}
w.WriteHeader(http.StatusBadRequest)
}
func getBookings(w http.ResponseWriter, r *http.Request) {
card_id := r.URL.Query().Get("cardID")
bookings, err := GetBookingsByCardID(DB, card_id)
if err != nil {
log.Println("Error getting bookings: ", err)
http.Error(w, "Internal Server Error", http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(bookings)
}
// func getBooking(w http.ResponseWriter, r *http.Request)
func getEnv(key, fallback string) string {
if value, ok := os.LookupEnv(key); ok {
return value
}
return fallback
}